EX-4.1



 Exhibit 4.1 

CARMAX AUTO OWNER TRUST 2018-1, 

as Issuer, 
 and 

U.S. BANK NATIONAL ASSOCIATION, 

as Indenture Trustee 
  

 
 INDENTURE 

Dated as of January 1, 2018 
  

 
 $278,000,000
1.70000% Class A-1 Asset-backed Notes 
 $392,000,000 2.23%
Class A-2a Asset-backed Notes 
 $75,000,000
Class A-2b Floating Rate Asset-backed Notes 
 $394,000,000 2.48%
Class A-3 Asset-backed Notes 
 $112,630,000 2.64%
Class A-4 Asset-backed Notes 
 $37,990,000 2.83% Class B Asset-backed Notes 

$34,600,000 2.95% Class C Asset-backed Notes 

$25,780,000 3.37% Class D Asset-backed Notes 







 CROSS REFERENCE TABLE (1) 

 

							
	 TIA

Section
	 	 	  	Indenture
Section	 
	 310
	 	 (a)(1)
	  	 	Section 6.11	 
		 	 (a)(2)
	  	 	Section 6.11	 
		 	 (a)(3)
	  	 	Section 6.10	 
		 	 (a)(4)
	  	 	N.A.	 
		 	 (a)(5)
	  	 	Section 6.11	 
		 	 (b)
	  	 	Section 6.8; Section 6.11	 
		 	 (c)
	  	 	N.A.	 
	 311
	 	 (a)
	  	 	Section 6.12	 
		 	 (b)
	  	 	Section 6.12	 
		 	 (c)
	  	 	N.A.	 
	 312
	 	 (a)
	  	 	Section 7.1	 
		 	 (b)
	  	 	Section 7.2	 
		 	 (c)
	  	 	Section 7.2	 
	 313
	 	 (a)
	  	 	Section 7.4	 
		 	 (b)(1)
	  	 	Section 7.4	 
		 	 (b)(2)
	  	 	Section 7.4; Section 11.5	 
		 	 (c)
	  	 	Section 7.4	 
		 	 (d)
	  	 	Section 7.3	 
	 314
	 	 (a)
	  	 	Section 7.3	 
		 	 (b)
	  	 	Section 11.15	 
		 	 (c)(1)
	  	 	Section 11.1	 
		 	 (c)(2)
	  	 	Section 11.1	 
		 	 (c)(3)
	  	 	Section 11.1	 
		 	 (d)
	  	 	Section 11.1	 
		 	 (e)
	  	 	Section 11.1	 
		 	 (f)
	  	 	Section 11.1	 
	 315
	 	 (a)
	  	 	Section 6.1	 
		 	 (b)
	  	 	Section 6.5; Section 11.5	 
		 	 (c)
	  	 	Section 6.1	 
		 	 (d)
	  	 	Section 6.1	 
		 	 (e)
	  	 	Section 5.13	 
	 316
	 	 (a)(last sentence)
	  	 	Section 1.1	 
		 	 (a)(1)(A)
	  	 	Section 5.11	 
		 	 (a)(1)(B)
	  	 	Section 5.12	 
		 	 (a)(2)
	  	 	N.A.	 
		 	 (b)
	  	 	Section 5.7	 
		 	 (c)
	  	 	N.A.	 
	 317
	 	 (a)(1)
	  	 	Section 5.3	 
		 	 (a)(2)
	  	 	Section 5.3	 
		 	 (b)
	  	 	Section 3.3	 
	 318
	 	 (a)
	  	 	Section 11.7	 

  

	(1)	Note: This Cross Reference Table shall not, for any purpose, be deemed to be part of this Indenture. 


	(2)	N.A. means Not Applicable. 


  
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 TABLE OF CONTENTS 

 

							
	ARTICLE I	 
	DEFINITIONS AND INCORPORATION BY REFERENCE	 
			
	 Section 1.1
	    	 Definitions
	  	 	2	 
	 Section 1.2
	    	 Incorporation by Reference of Trust Indenture Act
	  	 	2	 
	 Section 1.3
	    	 Rules of Construction
	  	 	2	 
	
	ARTICLE II	 
	THE NOTES	 
			
	 Section 2.1
	    	 Form
	  	 	4	 
	 Section 2.2
	    	 Execution, Authentication and Delivery
	  	 	4	 
	 Section 2.3
	    	 Temporary Notes
	  	 	5	 
	 Section 2.4
	    	 Tax Treatment
	  	 	5	 
	 Section 2.5
	    	 Registration; Registration of Transfer and Exchange
	  	 	6	 
	 Section 2.6
	    	 Mutilated, Destroyed, Lost or Stolen Notes
	  	 	8	 
	 Section 2.7
	    	 Persons Deemed Owners
	  	 	9	 
	 Section 2.8
	    	 Payments
	  	 	9	 
	 Section 2.9
	    	 Cancellation
	  	 	14	 
	 Section 2.10
	    	 Release of Collateral
	  	 	14	 
	 Section 2.11
	    	 Book-Entry Notes
	  	 	15	 
	 Section 2.12
	    	 Notices to Clearing Agency
	  	 	16	 
	 Section 2.13
	    	 Definitive Notes
	  	 	16	 
	 Section 2.14
	    	 Authenticating Agents
	  	 	16	 
	 Section 2.15
	    	 Retained Notes
	  	 	17	 
	
	ARTICLE III	 
	COVENANTS	 
			
	 Section 3.1
	    	 Payment of Principal and Interest
	  	 	21	 
	 Section 3.2
	    	 Maintenance of Office or Agency
	  	 	21	 
	 Section 3.3
	    	 Money for Payments To Be Held in Trust
	  	 	21	 
	 Section 3.4
	    	 Existence
	  	 	23	 
	 Section 3.5
	    	 Protection of Trust Estate
	  	 	23	 
	 Section 3.6
	    	 Opinions as to Trust Estate
	  	 	24	 
	 Section 3.7
	    	 Performance of Obligations; Servicing of Receivables
	  	 	24	 
	 Section 3.8
	    	 Negative Covenants
	  	 	26	 
	 Section 3.9
	    	 Annual Statement as to Compliance
	  	 	27	 
	 Section 3.10
	    	 Issuer May Consolidate, etc., Only on Certain Terms
	  	 	27	 
	 Section 3.11
	    	 Successor or Transferee
	  	 	29	 
	 Section 3.12
	    	 No Other Business
	  	 	29	 
	 Section 3.13
	    	 No Borrowing
	  	 	29	 
	 Section 3.14
	    	 Servicer’s Obligations
	  	 	30	 
	 Section 3.15
	    	 Guarantees, Loans, Advances and Other Liabilities
	  	 	30	 
	 Section 3.16
	    	 Capital Expenditures
	  	 	30	 


  
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	 Section 3.17
	    	 Restricted Payments
	  	 	30	 
	 Section 3.18
	    	 Notice of Events of Default
	  	 	30	 
	 Section 3.19
	    	 Removal of Administrator
	  	 	30	 
	 Section 3.20
	    	 Further Instruments and Acts
	  	 	30	 
	 Section 3.21
	    	 Sales Finance Company Licenses
	  	 	30	 
	 Section 3.22
	    	 Representations and Warranties by the Issuer to the Indenture Trustee
	  	 	31	 
	
	ARTICLE IV	 
	SATISFACTION AND DISCHARGE	 
			
	 Section 4.1
	    	 Satisfaction and Discharge of Indenture
	  	 	31	 
	 Section 4.2
	    	 Satisfaction, Discharge and Defeasance of the Notes
	  	 	32	 
	 Section 4.3
	    	 Application of Trust Money
	  	 	33	 
	 Section 4.4
	    	 Repayment of Monies Held by Paying Agent
	  	 	33	 
	
	ARTICLE V	 
	REMEDIES	 
			
	 Section 5.1
	    	 Events of Default
	  	 	33	 
	 Section 5.2
	    	 Acceleration of Maturity; Rescission and Annulment
	  	 	35	 
	 Section 5.3
	    	 Collection of Indebtedness and Suits for Enforcement by Indenture Trustee
	  	 	35	 
	 Section 5.4
	    	 Remedies; Priorities
	  	 	38	 
	 Section 5.5
	    	 Optional Preservation of the Receivables
	  	 	41	 
	 Section 5.6
	    	 Limitation of Suits
	  	 	41	 
	 Section 5.7
	    	 Unconditional Rights of Noteholders to Receive Principal and Interest
	  	 	42	 
	 Section 5.8
	    	 Restoration of Rights and Remedies
	  	 	42	 
	 Section 5.9
	    	 Rights and Remedies Cumulative
	  	 	42	 
	 Section 5.10
	    	 Delay or Omission Not a Waiver
	  	 	42	 
	 Section 5.11
	    	 Control by Noteholders of the Controlling Class
	  	 	43	 
	 Section 5.12
	    	 Waiver of Past Defaults
	  	 	43	 
	 Section 5.13
	    	 Undertaking for Costs
	  	 	44	 
	 Section 5.14
	    	 Waiver of Stay or Extension Laws
	  	 	44	 
	 Section 5.15
	    	 Action on Notes
	  	 	44	 
	 Section 5.16
	    	 Performance and Enforcement of Certain Obligations
	  	 	45	 
	
	ARTICLE VI	 
	THE INDENTURE TRUSTEE	 
			
	 Section 6.1
	    	 Duties of Indenture Trustee
	  	 	46	 
	 Section 6.2
	    	 Rights of Indenture Trustee
	  	 	48	 
	 Section 6.3
	    	 Individual Rights of Indenture Trustee
	  	 	49	 
	 Section 6.4
	    	 Indenture Trustee’s Disclaimer
	  	 	49	 
	 Section 6.5
	    	 Notice of Defaults
	  	 	49	 
	 Section 6.6
	    	 Reports by Indenture Trustee to Holders
	  	 	49	 


  
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	 Section 6.7
	    	 Compensation and Indemnity
	  	 	50	 
	 Section 6.8
	    	 Replacement of Indenture Trustee
	  	 	50	 
	 Section 6.9
	    	 Successor Indenture Trustee by Merger
	  	 	51	 
	 Section 6.10
	    	 Appointment of Co-Indenture Trustee or Separate Indenture
Trustee
	  	 	52	 
	 Section 6.11
	    	 Eligibility; Disqualification
	  	 	53	 
	 Section 6.12
	    	 Preferential Collection of Claims Against Issuer
	  	 	54	 
	 Section 6.13
	    	 Communications Regarding Demands to Purchase Receivables
	  	 	54	 
	
	ARTICLE VII	 
	NOTEHOLDERS’ LISTS AND REPORTS; ASSET REPRESENTATIONS REVIEW	 
			
	 Section 7.1
	    	 Issuer To Furnish Indenture Trustee Names and Addresses of Noteholders
	  	 	54	 
	 Section 7.2
	    	 Preservation of Information; Communications to Noteholders
	  	 	54	 
	 Section 7.3
	    	 Reports by Issuer
	  	 	55	 
	 Section 7.4
	    	 Reports by Indenture Trustee
	  	 	55	 
	 Section 7.5
	    	 Noteholder Communications
	  	 	56	 
	 Section 7.6
	    	 Asset Representations Review
	  	 	57	 
	
	ARTICLE VIII	 
	ACCOUNTS, DISBURSEMENTS AND RELEASES	 
			
	 Section 8.1
	    	 Collection of Money
	  	 	57	 
	 Section 8.2
	    	 Trust Accounts
	  	 	58	 
	 Section 8.3
	    	 General Provisions Regarding Accounts
	  	 	58	 
	 Section 8.4
	    	 Release of Trust Estate
	  	 	59	 
	 Section 8.5
	    	 Opinion of Counsel
	  	 	60	 
	
	ARTICLE IX	 
	SUPPLEMENTAL INDENTURES	 
			
	 Section 9.1
	    	 Supplemental Indentures Without Consent of Noteholders
	  	 	60	 
	 Section 9.2
	    	 Supplemental Indentures with Consent of Noteholders
	  	 	61	 
	 Section 9.3
	    	 Execution of Supplemental Indentures
	  	 	62	 
	 Section 9.4
	    	 Effect of Supplemental Indenture
	  	 	63	 
	 Section 9.5
	    	 Conformity with Trust Indenture Act
	  	 	63	 
	 Section 9.6
	    	 Reference in Notes to Supplemental Indentures
	  	 	63	 
	
	ARTICLE X	 
	REDEMPTION OF NOTES	 
			
	 Section 10.1
	    	 Redemption
	  	 	63	 
	 Section 10.2
	    	 Form of Redemption Notice
	  	 	64	 
	 Section 10.3
	    	 Notes Payable on Redemption Date
	  	 	64	 


  
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	ARTICLE XI	 
	MISCELLANEOUS	 
			
	 Section 11.1
	    	 Compliance Certificates and Opinions, etc
	  	 	65	 
	 Section 11.2
	    	 Form of Documents Delivered to Indenture Trustee
	  	 	66	 
	 Section 11.3
	    	 Acts of Noteholders
	  	 	67	 
	 Section 11.4
	    	 Notices, etc., to Indenture Trustee, Issuer and Rating Agencies
	  	 	68	 
	 Section 11.5
	    	 Notices to Noteholders; Waiver
	  	 	69	 
	 Section 11.6
	    	 Alternate Payment and Notice Provisions
	  	 	69	 
	 Section 11.7
	    	 Conflict with Trust Indenture Act
	  	 	70	 
	 Section 11.8
	    	 Effect of Headings and Table of Contents
	  	 	70	 
	 Section 11.9
	    	 Successors and Assigns
	  	 	70	 
	 Section 11.10
	    	 Severability
	  	 	70	 
	 Section 11.11
	    	 Benefits of Indenture
	  	 	70	 
	 Section 11.12
	    	 Legal Holiday
	  	 	70	 
	 Section 11.13
	    	 GOVERNING LAW
	  	 	70	 
	 Section 11.14
	    	 Counterparts
	  	 	71	 
	 Section 11.15
	    	 Recording of Indenture
	  	 	71	 
	 Section 11.16
	    	 Trust Obligation
	  	 	71	 
	 Section 11.17
	    	 No Petition
	  	 	71	 
	 Section 11.18
	    	 Inspection
	  	 	71	 
	 Section 11.19
	    	 Third-Party Beneficiaries
	  	 	72	 
	 Section 11.20
	    	 Limitation on Recourse to CarMax Funding
	  	 	72	 
	 Section 11.21
	    	 Legal Fees Associated with Indemnification
	  	 	72	 
	 Section 11.22
	    	 Limitation of Liability of the Owner Trustee
	  	 	72	 

  

			
	APPENDICES
		
	 APPENDIX A
	  	 Additional Representations and Warranties

	
	EXHIBITS
		
	 EXHIBIT A-1
	  	 Form of Class A-1 Note

	 EXHIBIT A-2a
	  	 Form of Class A-2a Note

	 EXHIBIT A-2b
	  	 Form of Class A-2b Note

	 EXHIBIT A-3
	  	 Form of Class A-3 Note

	 EXHIBIT A-4
	  	 Form of Class A-4 Note

	 EXHIBIT B
	  	 Form of Class B Note

	 EXHIBIT C
	  	 Form of Class C Note

	 EXHIBIT D
	  	 Form of Class D Note

	 EXHIBIT E
	  	 Form of Opinion of Counsel

	 EXHIBIT F
	  	 Form of Transferor Certificate

	 EXHIBIT G
	  	 Form of Investment Letter



  
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 INDENTURE, dated as of January 1, 2018 (as amended, supplemented or otherwise modified and
in effect from time to time, this “Indenture”), between CARMAX AUTO OWNER TRUST 2018-1, a Delaware statutory trust (the “Issuer”), and U.S. BANK NATIONAL ASSOCIATION, a
national banking association, not in its individual capacity but solely as indenture trustee (in such capacity, the “Indenture Trustee”). 

Each party agrees as follows for the benefit of the other party and for the equal and ratable benefit of the holders of the Issuer’s
1.70000% Class A-1 Asset-backed Notes (the “Class A-1 Notes”), 2.23% Class A-2a
Asset-backed Notes (the “Class A-2a Notes”), Class A-2b Floating Rate Asset-backed Notes (the “Class A-2b Notes” and, together with the Class A-2a Notes, the “Class A-2 Notes”), 2.48% Class A-3 Asset-backed Notes (the “Class A-3 Notes”), 2.64% Class A-4 Asset-backed Notes
(the “Class A-4 Notes” and, collectively with the Class A-1 Notes, the Class A-2
Notes and the Class A-3 Notes, the “Class A Notes”), 2.83% Class B Asset-backed Notes (the “Class B Notes”), 2.95% Class C
Asset-backed Notes (the “Class C Notes”) and 3.37% Class D Asset-backed Notes (the “Class D Notes” and, collectively with the Class A Notes, the Class B Notes and
the Class C Notes, the “Notes”): 
 GRANTING CLAUSE 

The Issuer hereby Grants to the Indenture Trustee on the Closing Date, as Indenture Trustee for the benefit of the Holders of the Notes, all
of the Issuer’s right, title and interest in, to and under, whether now owned or existing or hereafter acquired or arising (i) the Receivables; (ii) all amounts received on or in respect of the Receivables after the Cutoff Date;
(iii) the security interests in the Financed Vehicles granted by the Obligors pursuant to the Receivables and any other interest of the Issuer in such Financed Vehicles; (iv) all proceeds from claims on or refunds of premiums with respect
to any physical damage, theft, GAP, credit life or credit disability insurance policies relating to the Financed Vehicles or the Obligors; (v) the Receivable Files; (vi) the Collection Account, the Note Payment Account and the Reserve
Account and all amounts, securities, financial assets, investments and other property deposited in or credited to any of the foregoing and all proceeds thereof; (vii) all rights of the Depositor under the Receivables Purchase Agreement,
including the right to require the Seller to repurchase Receivables from the Depositor; (viii) all rights of the Issuer under the Sale and Servicing Agreement, including the right to require the Servicer to purchase Receivables from the Issuer;
(ix) the right to realize upon any property (including the right to receive future Liquidation Proceeds) that shall have secured a Receivable and have been repossessed by or on behalf of the Issuer; and (x) all present and future claims,
demands, causes of action and choses in action in respect of any or all of the foregoing and all payments on or under and all proceeds of every kind and nature whatsoever in respect of any or all of the foregoing, including all proceeds of the
conversion thereof, voluntary or involuntary, into cash or other liquid property; all accounts, general intangibles, chattel paper, instruments, documents, money, investment property, deposit accounts, letters of credit, letter-of-credit rights, insurance proceeds, condemnation awards, rights to payment of any and every kind and other forms of obligations; and all other property which at any
time constitutes all or part of or is included in the proceeds of any of the foregoing (collectively, the “Collateral”). 

The foregoing Grant is made in trust to secure the payment of principal of and interest on, and any other amounts owing in respect of, the
Notes, equally and ratably without prejudice, priority or distinction, and to secure compliance with the provisions of this Indenture, all as provided in this Indenture. 







 The Indenture Trustee, as Indenture Trustee on behalf of the Holders of the Notes, acknowledges
such Grant, accepts the trusts under this Indenture in accordance with the provisions of this Indenture and agrees to perform its duties required in this Indenture to the best of its ability to the end that the interests of the Holders of the Notes
may be adequately and effectively protected. 
 ARTICLE I 

DEFINITIONS AND INCORPORATION BY REFERENCE 

Section 1.1    Definitions. Capitalized terms used herein that are not otherwise defined shall have the
meanings ascribed thereto in Appendix A to the Sale and Servicing Agreement, dated as of the date hereof, among the Issuer, CarMax Auto Funding LLC, as depositor, and CarMax Business Services, LLC, as servicer, as amended, supplemented or
otherwise modified and in effect from time to time. 
 Section 1.2    Incorporation by Reference of Trust
Indenture Act. 
 (a)    Whenever this Indenture refers to a provision of the TIA, that provision is incorporated by
reference in and made a part of this Indenture. The following TIA terms used in this Indenture have the following meanings: 
  

	 	(i)	“Indenture securities” shall mean the Notes. 

  

	 	(ii)	“Indenture security holder” shall mean a Noteholder. 

  

	 	(iii)	“Indenture to be qualified” shall mean this Indenture. 

  

	 	(iv)	“Indenture trustee” or “Institutional trustee” shall mean the Indenture Trustee. 

  

	 	(v)	“Obligor on the indenture securities” shall mean the Issuer and any other obligor on the Notes. 

  

	 	(vi)	All other TIA terms used in this Indenture that are defined in the TIA, defined by TIA reference to another statute or defined by Commission rule have the respective meanings assigned to them by such definitions.


 Section 1.3    Rules of Construction. 

(a)    Unless the context otherwise requires: 
  

	 	(i)	a term has the meaning assigned to it; 


  
 2 









	 	(ii)	an accounting term not otherwise defined has the meaning assigned to it in accordance with generally accepted accounting principles as in effect from time to time; 


 

	 	(iii)	to the extent that the definitions of accounting terms in this Indenture or in any certificate or other document delivered in connection herewith are inconsistent with the meanings of such terms under generally accepted
accounting principles, the definitions contained in this Indenture or in such certificate or other document shall control; 

  

	 	(iv)	“or” is not exclusive; 

  

	 	(v)	“including” means “including without limitation”; 

  

	 	(vi)	words in the singular include the plural and words in the plural include the singular; 

  

	 	(vii)	all terms defined in this Indenture shall have the defined meanings when used in any certificate or other document made or delivered pursuant hereto unless otherwise defined therein; 


 

	 	(viii)	any agreement, instrument or statute defined or referred to herein or in any instrument or certificate delivered in connection herewith means such agreement, instrument or statute as from time to time amended, modified
or supplemented and includes (in the case of agreements or instruments) references to all attachments thereto and instruments incorporated therein; 

  

	 	(ix)	references to a Person are also to its successors and permitted assigns; 

  

	 	(x)	Article, Section, subsection, clause, subclause and Exhibit references contained in this Indenture are references to Articles, Sections, subsections, clauses, subclauses and Exhibits in or to this Indenture unless
otherwise specified; 

  

	 	(xi)	the term “proceeds” shall have the meaning set forth in the Relevant UCC (unless otherwise defined herein); and 

  

	 	(xii)	the words “hereof”, “herein” and “hereunder” and words of similar import when used in this Indenture shall refer to this Indenture as a whole and not to any particular provision of this
Indenture. 


  
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 ARTICLE II 

THE NOTES 

Section 2.1    Form. 

(a)    The Class A-1 Notes, the
Class A-2a Notes, the Class A-2b Notes, the Class A-3 Notes, the
Class A-4 Notes, the Class B Notes, the Class C Notes and the Class D Notes, together with the Indenture Trustee’s certificates of authentication, shall be substantially in the form
set forth in Exhibit A-1, Exhibit A-2a, Exhibit A-2b, Exhibit A-3, Exhibit A-4, Exhibit B, Exhibit C and Exhibit D, respectively, with such appropriate insertions, omissions, substitutions and other variations as are required or permitted by this Indenture, and may have such letters,
numbers or other marks of identification and such legends or endorsements placed thereon as may, consistently herewith, be determined by the officers executing such Notes, as evidenced by their execution thereof. Any portion of the text of any Note
may be set forth on the reverse thereof, with an appropriate reference thereto on the face of the Note. 
 (b)    The
Definitive Notes shall be typewritten, printed, lithographed or engraved, or produced by any combination of these methods (with or without steel engraved borders), all as determined by the Authorized Officers of the Issuer executing such Notes, as
evidenced by their execution of such Notes. 
 (c)    Each Note shall be dated the date of its authentication. The terms
of the Notes set forth in Exhibit A-1, Exhibit A-2a, Exhibit A-2b, Exhibit A-3, Exhibit A-4, Exhibit B, Exhibit C and Exhibit D are part of the terms of this Indenture and are incorporated herein by reference. 

Section 2.2    Execution, Authentication and Delivery. 

(a)    The Notes shall be executed on behalf of the Issuer by any of its Authorized Officers. The signatures of any such
Authorized Officer of the Issuer on the Notes may be manual or facsimile. 
 (b)    Notes bearing the manual or
facsimile signature of individuals who were at any time Authorized Officers of the Issuer shall bind the Issuer, notwithstanding whether any such individuals have ceased to hold such offices prior to the authentication and delivery of such Notes or
did not hold such offices on such date of authentication or date of delivery. 
 (c)    The Indenture Trustee shall,
upon Issuer Order, authenticate and deliver the Class A-1 Notes for original issue in an aggregate principal amount of $278,000,000, the Class A-2a Notes for
original issue in an aggregate principal amount of $392,000,000, the Class A-2b Notes for original issue in an aggregate principal amount of $75,000,000, the
Class A-3 Notes for original issue in an aggregate principal amount of $394,000,000, the Class A-4 Notes for original issue in an aggregate principal amount of
$112,630,000, the Class B Notes for original issue in an aggregate principal amount of $37,990,000, the Class C Notes for original issue in an aggregate principal amount of $34,600,000 and the Class D Notes for original issue in an
aggregate principal amount of $25,780,000. The aggregate principal amounts of Class A-1 Notes, Class A-2a Notes,
Class A-2b Notes, Class A-3 Notes, Class A-4 Notes, Class B Notes, Class C Notes and Class D Notes
outstanding at any time may not exceed those respective amounts except as provided in Section 2.6. 

  
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 (d)    Each Note shall be dated the date of its authentication. The Notes
shall be issuable as registered Notes in minimum denominations of $5,000 and in integral multiples of $1,000 in excess thereof; provided, that the minimum amounts of any Retained Notes shall be subject to the restrictions set forth in
Section 2.15. 
 (e)    No Note shall be entitled to any benefit under this Indenture or be
valid or obligatory for any purpose unless there appears on such Note a certificate of authentication substantially in the form provided for herein executed by the Indenture Trustee by the manual signature of one of its authorized signatories, and
such certificate upon any Note shall be conclusive evidence, and the only evidence, that such Note has been duly authenticated and delivered hereunder. 

Section 2.3    Temporary Notes. 

(a)    Pending the preparation of Definitive Notes pursuant to Section 2.13, the Issuer may execute, and upon receipt
of an Issuer Order the Indenture Trustee shall authenticate and deliver, temporary Notes that are printed, lithographed, typewritten, mimeographed or otherwise produced of the tenor of the Definitive Notes in lieu of which they are issued and with
such variations not inconsistent with the terms of this Indenture as the officers executing such Notes may determine, as evidenced by their execution of such Notes. 

(b)    If temporary Notes are issued pursuant to Section 2.3(a), the Issuer shall cause Definitive Notes to be
prepared without unreasonable delay. After the preparation of Definitive Notes, the temporary Notes shall be exchangeable for Definitive Notes upon surrender of the temporary Notes at the office or agency of the Note Registrar to be maintained as
provided in Section 3.2, without charge to the Holder. Upon surrender for cancellation of any one or more temporary Notes, the Issuer shall execute, and the Indenture Trustee shall authenticate and deliver in exchange therefor, a like principal
amount of Definitive Notes of authorized denominations. Until so exchanged, the temporary Notes shall in all respects be entitled to the same benefits under this Indenture as Definitive Notes. 

Section 2.4    Tax Treatment. 

(a)    The Issuer has entered into this Indenture, and the Notes shall be issued, with the intention that, for federal,
State and local income and franchise tax purposes, the Notes (other than any Retained Notes) shall qualify as indebtedness of the Issuer secured by the Trust Estate. The Issuer, by entering into this Indenture, and each Noteholder, by its acceptance
of a Note (and each Note Owner by its acceptance of an interest in the applicable Book-Entry Note), agree to treat the Notes (other than any Retained Notes) as indebtedness of the Issuer for federal, State and local income and franchise tax
purposes. 
 (b)    Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a
beneficial interest in a Note, agrees to provide to the Indenture Trustee, any Paying Agent or the Issuer, upon its request, the Noteholder Tax Identification Information and, to the extent FATCA Withholding Tax is applicable, the Noteholder FATCA
Information. 

  
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 (c)    Each Noteholder or Note Owner, by its acceptance of a Note or, in the
case of a Note Owner, a beneficial interest in a Note, agrees that the Indenture Trustee has the right to withhold any amounts of interest (properly withholdable under law and without any corresponding
gross-up) payable to a Noteholder or holder of an interest in a Note that fails to comply with the requirements of Section 2.4(b). 

Section 2.5    Registration; Registration of Transfer and Exchange. 

(a)    The Indenture Trustee initially shall be the registrar (the “Note Registrar”) for the purpose of
registering Notes and transfers of Notes as herein provided. The Note Registrar shall cause to be kept a register (the “Note Register”) in which, subject to such reasonable regulations as it may prescribe, the Note Registrar shall
provide for the registration of Notes and the registration of transfers of Notes. Upon any resignation of any Note Registrar, the Issuer shall promptly appoint a successor or, if it elects not to make such an appointment, assume the duties of Note
Registrar. 
 (b)    If a Person other than the Indenture Trustee is appointed by the Issuer as Note Registrar,
(i) the Issuer shall give the Indenture Trustee prompt written notice of the appointment of such Note Registrar and of the location, or any change in the location, of the Note Register, (ii) the Indenture Trustee shall have the right to
inspect the Note Register at all reasonable times and to obtain copies thereof and (iii) the Indenture Trustee shall have the right to rely upon a certificate executed on behalf of the Note Registrar by an Executive Officer thereof as to the
names and addresses of the Holders of the Notes and the principal amounts and number of such Notes. 
 (c)    Upon
surrender for registration of transfer of any Note at the office or agency of the Issuer to be maintained as provided in Section 3.2, if the requirements of Section 8-401 or 8A-401, as applicable, of the Relevant UCC are met, the Issuer shall execute, and the Indenture Trustee shall authenticate and deliver to the Noteholder making such surrender, in the name of the designated
transferee or transferees, one or more new Notes of the same Class in any authorized denomination, of a like aggregate principal amount. The Indenture Trustee may rely upon the Administrator with respect to the determination of whether the
requirements of Section 8-401 or 8A-401, as applicable, of the Relevant UCC are met. 

(d)    At the option of the Noteholder, Notes may be exchanged for other Notes of the same Class in any authorized
denominations, of a like aggregate principal amount, upon surrender of the Notes to be exchanged at such office or agency. Whenever any Notes are so surrendered for exchange, if the requirements of
Section 8-401 or 8A-401, as applicable, of the Relevant UCC are met, the Issuer shall execute, and the Indenture Trustee shall authenticate and deliver to the
Noteholder making such exchange, the Notes which such Noteholder is entitled to receive. The Indenture Trustee may rely upon the Administrator with respect to the determination of whether the requirements of
Section 8-401 or 8A-401, as applicable, of the Relevant UCC are met. 

(e)    All Notes issued upon any registration of transfer or exchange of Notes shall be the valid obligations of the
Issuer, evidencing the same debt, and entitled to the same benefits under this Indenture, as the Notes surrendered upon such registration of transfer or exchange. 

  
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 (f)    All Notes presented or surrendered for registration of transfer or
exchange shall be duly endorsed by, or be accompanied by a written instrument of transfer in form satisfactory to the Indenture Trustee duly executed by, the Holder thereof or such Holder’s attorney duly authorized in writing, with such
signature guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar. 

(g)    No service charge shall be made to a Holder for any registration of transfer or exchange of Notes, but the
Indenture Trustee may require payment by such Holder of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any registration of transfer or exchange of Notes, other than exchanges pursuant to
Section 2.3 or Section 9.6 not involving any transfer. 
 (h)    The Issuer shall not be required to make, and
the Note Registrar need not register, transfers or exchanges of Notes selected for redemption or Notes with respect to which the due date for any payment will occur within fifteen (15) days. 

(i)    Each Person who initially acquires a Note other than a Retained Note (or an interest therein) or to whom a Note
other than a Retained Note (or an interest therein) is transferred will be deemed to have represented and warranted, by its acceptance of such Note (or an interest therein), that either (a) it is not acquiring such Note (or an interest therein)
with the assets of either (1) a Benefit Plan Investor or (2) an employee benefit plan or arrangement not subject to Title I of ERISA or Section 4975 of the Code; or (b) (i) the acquisition and holding of such Note (or an interest
therein) will not constitute or result in a non-exempt “prohibited transaction” under Section 406 of ERISA or Section 4975 of the Code or a violation of any substantially similar applicable
law and (ii) certain other requirements are satisfied, if applicable, as set forth in Section 2.5(k) of this Indenture. 

(j)    Any purported transfer of a Note not in accordance with this Section 2.5 shall be null and void and shall not
be given effect for any purpose whatsoever. 
 (k)    each purchaser and transferee that is a Benefit Plan Investor and
any Plan Fiduciary, is deemed to represent and warrant by its acquisition of the Notes that: (a) the decision to acquire the Notes has been made on an arms’ length basis by the Plan Fiduciary; (b) the Plan Fiduciary is independent of
the Seller, the Depositor, the Servicer, the sponsor, the Trust, the Owner Trustee, the Underwriters or any of their respective affiliates (collectively, the “Transaction Parties”), and the Plan Fiduciary either: (i) is a bank as
defined in Section 202 of the Investment Advisers Act of 1940, as amended (the “Advisers Act”), or similar institution that is regulated and supervised and subject to periodic examination by a U.S. state or U.S. federal agency,
(ii) is an insurance carrier which is qualified under the laws of more than one U.S. state to perform the services of managing, acquiring or disposing of assets of an “employee benefit plan” described in Section 3(3) of ERISA or
“plan” described in Section 4975(e)(1)(A) of the Internal Revenue Code, (iii) is an investment adviser registered under the Advisers Act, or, if not registered as an investment adviser under the Advisers Act by reason of
paragraph (1) of Section 203A of the Advisers Act, is registered as an investment adviser under the laws of the U.S. state 

  
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in which it maintains its principal office and place of business, (iv) is a broker-dealer registered under the Exchange Act or (v) holds, or has under its management or control, total
assets of at least U.S. $50 million; (c) the Plan Fiduciary is capable of evaluating investment risks independently, both in general and with respect to particular transactions and investment strategies, including the acquisition by the
Benefit Plan Investor of the Notes; (d) the Plan Fiduciary is a “fiduciary” with respect to the Benefit Plan Investor within the meaning of Section 3(21) of ERISA, Section 4975 of the Code, or both, and is responsible for
exercising independent judgment in evaluating the Benefit Plan Investor’s acquisition of the Notes; (e) none of the Transaction Parties has exercised any authority to cause the Benefit Plan Investor to invest in the Notes or to negotiate
the terms of the Benefit Plan Investor’s investment in the Notes; and (f) the Plan Fiduciary has been informed by the Transaction Parties: (i) that none of the Transaction Parties are undertaking to provide impartial investment advice
or to give advice in a fiduciary capacity in connection with the Benefit Plan Investor’s acquisition of the Notes and (ii) of the existence and nature of the Transaction Parties’ financial interests in the Benefit Plan Investor’s
acquisition of the Notes as disclosed in the Prospectus. 
 Section 2.6    Mutilated, Destroyed, Lost or Stolen
Notes. 
 (a)    If (i) any mutilated Note is surrendered to the Indenture Trustee, or the Indenture Trustee
receives evidence to its satisfaction of the destruction, loss or theft of any Note, and (ii) there is delivered to the Indenture Trustee such security or indemnity as may be required by it to hold the Issuer and the Indenture Trustee harmless,
then, in the absence of notice to the Issuer, the Note Registrar or the Indenture Trustee that such Note has been acquired by a “protected purchaser” (as defined in the Relevant UCC), and provided that the requirements of Section 8-405 or 8A-405, as applicable, of the Relevant UCC are met, the Issuer shall execute and the Indenture Trustee shall authenticate and deliver, in exchange for or
in lieu of any such mutilated, destroyed, lost or stolen Note, a replacement Note of the same Class; provided, however, that if any such destroyed, lost or stolen Note, but not a mutilated Note, shall have become or within seven
(7) days of the Indenture Trustee’s receipt of evidence to its satisfaction of such destruction, loss or theft shall be due and payable, or shall have been called for redemption in whole pursuant to Section 10.1, instead of issuing a
replacement Note of the same Class, the Issuer may pay such destroyed, lost or stolen Note when so due or payable or upon the Redemption Date without surrender thereof. The Indenture Trustee may conclusively rely upon the Administrator with respect
to the determination of whether the requirements of Section 8-405 or 8A-405, as applicable, of the Relevant UCC are met. If, after the delivery of such replacement
Note or payment of a destroyed, lost or stolen Note pursuant to the proviso to the preceding sentence, a “protected purchaser” (as defined in the Relevant UCC) of the original Note in lieu of which such replacement Note was issued presents
for payment such original Note, the Issuer and the Indenture Trustee shall be entitled to recover such replacement Note (or such payment) from the Person to whom such replacement Note was delivered or any Person taking such replacement Note from
such Person to whom such replacement Note was delivered or any assignee of such Person, except a “protected purchaser” (as defined in the Relevant UCC), and shall be entitled to recover upon the security or indemnity provided therefor to
the extent of any loss, damage, cost or expense incurred by the Issuer or the Indenture Trustee in connection therewith. 

  
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 (b)    Upon the issuance of any replacement Note under this Section 2.6,
the Issuer may require the payment by the Holder of such Note of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with such issuance and any other reasonable expenses (including the fees and expenses
of the Indenture Trustee) related thereto. 
 (c)    Every replacement Note issued pursuant to this Section 2.6 in
replacement of any mutilated, destroyed, lost or stolen Note shall constitute an original additional contractual obligation of the Issuer, whether or not the mutilated, destroyed, lost or stolen Note shall be at any time enforceable by anyone, and
shall be entitled to all the benefits of this Indenture equally and proportionately with any and all other Notes duly issued hereunder. 

(d)    The provisions of this Section 2.6 are exclusive and shall preclude (to the extent lawful) all other rights
and remedies with respect to the replacement or payment of mutilated, destroyed, lost or stolen Notes. 

Section 2.7    Persons Deemed Owners. Prior to due presentation of a Note for registration of transfer, the
Issuer, the Indenture Trustee and any agent of the Issuer or the Indenture Trustee may, subject to Section 2.6, treat the Person in whose name such Note is registered in the Note Register (as of the day of determination) as the owner of such
Note for the purpose of receiving payments of principal of and interest on such Note and for all other purposes whatsoever, whether or not such Note shall be overdue, and none of the Issuer, the Indenture Trustee or any agent of the Issuer or the
Indenture Trustee shall be affected by any notice to the contrary. 
 Section 2.8    Payments. 

(a)    Prior to any acceleration of the Notes pursuant to Section 5.2, on each Distribution Date, upon receipt of
written instructions from the Servicer pursuant to Section 4.6(d) of the Sale and Servicing Agreement, the Indenture Trustee (or, if the Indenture Trustee is not the Paying Agent, the Paying Agent) shall apply the Available Funds for such
Distribution Date to make the following payments and deposits in the following order of priority (except that amounts withdrawn from the Reserve Account will not be used to reimburse Unreimbursed Servicer Advance or be paid to CarMax or any of its
Affiliates in respect of the Total Servicing Fee owing to the Servicer to the extent that CarMax or any of its affiliates is the Servicer): 
  

	 	(i)	to the Servicer, the Total Servicing Fee for the preceding Collection Period and any Unreimbursed Servicer Advances for the preceding Collection Period; 


 

	 	(ii)	 pro rata: (a) if the Indenture Trustee has become the Servicer pursuant to Section 8.2 of the Sale and
Servicing Agreement, to the Indenture Trustee, (I) any amounts due in connection with indemnification of the Indenture Trustee as Successor Servicer, including in its role as successor Administrator, and not paid pursuant to Section 7.2 of
the Sale and Servicing Agreement and (II) any unpaid Transition Costs due to the Indenture Trustee as 



  
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Successor Servicer in connection with such transfer of servicing and not paid pursuant to Section 8.2(b) of the Sale and Servicing Agreement; provided, however, that total
payments pursuant to subclauses (a)(I) and (a)(II) of this clause (ii) shall not exceed $175,000 in the aggregate; and (b) to the Asset Representations Reviewer, any unpaid fees and expenses for the related Collection Period plus
any overdue fees and expenses for prior Collection Periods plus any unpaid indemnity amounts due to the Asset Representations Reviewer; provided, however, that total payments pursuant to subclause (b) of this clause
(ii) shall not exceed $175,000 per year; 

  

	 	(iii)	to the Note Payment Account, for payment of interest on each Class of the Class A Notes, the Total Note Interest for each Class of the Class A Notes for such Distribution Date; 


 

	 	(iv)	to the Note Payment Account, for payment of principal of the Notes in the priority set forth in Section 2.8(d), the Priority Principal Distributable Amount, if any, for such Distribution Date; 


 

	 	(v)	to the Note Payment Account, for payment of interest on the Class B Notes, the Total Note Interest for the Class B Notes for such Distribution Date; 


 

	 	(vi)	to the Note Payment Account, for payment of principal of the Notes in the priority set forth in Section 2.8(d), the Secondary Principal Distributable Amount, if any, for such Distribution Date; 


 

	 	(vii)	to the Note Payment Account, for payment of interest on the Class C Notes, the Total Note Interest for the Class C Notes for such Distribution Date; 


 

	 	(viii)	to the Note Payment Account, for payment of principal of the Notes in the priority set forth in Section 2.8(d), the Tertiary Principal Distributable Amount, if any, for such Distribution Date; 


 

	 	(ix)	to the Note Payment Account, for payment of interest on the Class D Notes, the Total Note Interest for the Class D Notes for such Distribution Date; 


 

	 	(x)	to the Note Payment Account, for payment of principal of the Notes in the priority set forth in Section 2.8(d), the Quaternary Principal Distributable Amount, if any, for such Distribution Date; 


 

	 	(xi)	to the Reserve Account, the Reserve Account Deficiency, if any, for such Distribution Date; 


  
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	 	(xii)	to the Note Payment Account, for payment of principal of the Notes in the priority set forth in Section 2.8(d), the Regular Principal Distributable Amount, if any, for such Distribution Date; 


 

	 	(xiii)	pro rata: (a) to the Indenture Trustee, any unpaid fees, expenses and indemnity amounts due to the Indenture Trustee pursuant to this Indenture; (b) to the Indenture Trustee, any amounts due in connection with
the indemnification of the Indenture Trustee if it has become the Successor Servicer, including in its role as successor Administrator, that are in excess of the related cap described in clause (ii)(a)(I) above; (c) if the Indenture Trustee or
any other Successor Servicer has become the Servicer pursuant to Section 8.2 of the Sale and Servicing Agreement, to the Indenture Trustee any Transition Costs due to the Indenture Trustee in connection with such transfer of servicing and not
paid pursuant to Section 8.2(b) of the Sale and Servicing Agreement that are in excess of the cap described in clause (ii)(a)(II) above or any Transition Costs due to such other Successor Servicer in connection with such transfer of
servicing and not paid pursuant to Section 8.2(b) of the Sale and Servicing Agreement plus the Additional Servicing Fee, if any, for the preceding Collection Period and any unpaid Additional Servicing Fees from prior Collection Periods;
and (d) to the Asset Representations Reviewer, any unpaid fees, expenses and indemnity amounts due to the Asset Representations Reviewer that are in excess of the related cap described under clause (ii)(b) above; and 


 

	 	(xiv)	to the Certificate Payment Account, for payment to the Certificateholders, any remaining Available Funds (the “Excess Collections”). 


(b)    Notwithstanding any other provision of this Section 2.8 and except as provided in Section 5.5, following
the occurrence and during the continuation of an Event of Default which has resulted in an acceleration of the Notes, the Indenture Trustee shall apply all Available Funds pursuant to Section 5.4(b). 

(c)    If the amount on deposit in the Note Payment Account (including any portion of the Reserve Account Draw Amount) on
any Distribution Date is less than the amount described in clause (iii) above for such Distribution Date, the Indenture Trustee shall pay the available amount to the Holders of each Class of Class A Notes pro rata based on the Total
Note Interest payable to such Class on such Distribution Date. 
 (d)    The principal of each Note shall be
payable in installments on each Distribution Date in an aggregate amount (unless the Notes have been declared immediately due and payable following an Event of Default) for all Classes of Notes equal to the sum of the Priority Principal
Distributable Amount, the Secondary Principal Distributable Amount, the Tertiary Principal Distributable Amount, the Quaternary Principal Distributable Amount and the 

  
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Regular Principal Distributable Amount, in each case for such Distribution Date. On each Distribution Date (unless the Notes have been declared immediately due and payable following an Event of
Default), upon receipt of instructions from the Servicer pursuant to Section 4.6(d) of the Sale and Servicing Agreement, the Indenture Trustee (or, if the Indenture Trustee is not the Paying Agent, the Paying Agent) shall apply or cause to be
applied the amount on deposit in the Note Payment Account on such Distribution Date in respect of the Priority Principal Distributable Amount, the Secondary Principal Distributable Amount, the Tertiary Principal Distributable Amount, the Quaternary
Principal Distributable Amount and the Regular Principal Distributable Amount, in each case for such Distribution Date, to make the following payments in the following order of priority: 

 

	 	(i)	to the Class A-1 Noteholders until the principal amount of the Class A-1 Notes has been paid in full; 


 

	 	(ii)	to the Class A-2a Noteholders and the Class A-2b Noteholders, ratably, until the principal amount of the Class A-2a Notes and Class A-2b Notes has been paid in full; 

  

	 	(iii)	to the Class A-3 Noteholders until the principal amount of the Class A-3 Notes has been paid in full; 


 

	 	(iv)	to the Class A-4 Noteholders until the principal amount of the Class A-4 Notes has been paid in full; 


 

	 	(v)	to the Class B Noteholders until the principal amount of the Class B Notes has been paid in full; 

  

	 	(vi)	to the Class C Noteholders until the principal amount of the Class C Notes has been paid in full; and 

  

	 	(vii)	to the Class D Noteholders until the principal amount of the Class D Notes has been paid in full. 


(e)    (i) The unpaid principal amount of the Class A-1 Notes, to the extent
not previously paid, shall be due and payable on the Class A-1 Final Distribution Date, the principal amount of the Class A-2a Notes, to the extent not
previously paid, shall be due and payable on the Class A-2a Final Distribution Date, the principal amount of the Class A-2b Notes, to the extent not previously
paid, shall be due and payable on the Class A-2b Final Distribution Date, the principal amount of the Class A-3 Notes, to the extent not previously paid, shall
be due and payable on the Class A-3 Final Distribution Date, the principal amount of the Class A-4 Notes, to the extent not previously paid, shall be due and
payable on the Class A-4 Final Distribution Date, the principal amount of the Class B Notes, to the extent not previously paid, shall be due and payable on the Class B Final Distribution Date,
the principal amount of the Class C Notes, to the extent not previously paid, shall be due and payable on the Class C Final Distribution Date and the principal amount of the Class D Notes, to the extent not previously paid, shall be
due and payable on the Class D Final Distribution Date and (ii) for purposes of distributions from the Reserve Account pursuant to Section 8.2(b), any portion of the Priority Principal Distributable Amount, Secondary Priority
Principal Distributable Amount, Tertiary Priority Principal 

  
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Distributable Amount, Quaternary Priority Principal Distributable Amount and Regular Principal Distributable Amount shall be deemed to be due on any Distribution Date on which funds sufficient to
pay such portion would be available to make such payment from funds withdrawn from the Reserve Account and distributed with the priorities set forth in accordance with Section 2.8(a). For the avoidance of doubt, the Priority Principal
Distributable Amount, Secondary Priority Principal Distributable Amount, Tertiary Priority Principal Distributable Amount, Quaternary Priority Principal Distributable Amount and Regular Principal Distributable Amount, or any portion thereof, shall
not be due (other than in accordance with Sections 2.8(e)(i), 5.2 and 10.1), unless amounts are actually available to make such payments in accordance with Section 2.8(a). 

(f)    The Class A-1 Notes, the
Class A-2a Notes, the Class A-2b Notes, the Class A-3 Notes, the
Class A-4 Notes, the Class B Notes, the Class C Notes and the Class D Notes shall accrue interest during each Accrual Period at the Class A-1
Rate, the Class A-2a Rate, the Class A-2b Rate, the Class A-3 Rate, the
Class A-4 Rate, the Class B Rate, the Class C Rate and the Class D Rate, respectively, and such interest shall be due and payable on each Distribution Date. Interest on the Class A-1 Notes and the Class A-2b Notes shall be calculated on the basis of the actual number of days elapsed and a 360-day
year. Interest on the Class A-2a Notes, the Class A-3 Notes, the Class A-4 Notes, the Class B Notes, the
Class C Notes and the Class D Notes shall be calculated on the basis of a 360-day year of twelve 30-day months. Subject to Section 3.1, any installment of
interest or principal, if any, payable on any Note that is punctually paid or duly provided for on the applicable Distribution Date shall be paid to the Person in whose name such Note (or one or more Predecessor Notes) is registered on the related
Record Date by check mailed first-class postage prepaid to such Person’s address as it appears on the Note Register on such Record Date or by wire transfer in immediately available funds to the account designated in writing to the Indenture
Trustee by such Person at least five Business Days prior to the related Record Date; provided, however, that, unless Definitive Notes have been issued pursuant to Section 2.13, with respect to Notes registered on the Record Date
in the name of the nominee of the Clearing Agency (initially, such nominee to be Cede & Co.), payment shall be made by wire transfer in immediately available funds to the account designated by such Person, and except for the final
installment of principal payable with respect to such Note on a Distribution Date or on the related Class Final Distribution Date (and except for the Redemption Price for any Note called for redemption in whole pursuant to Section 10.1(a)
or Section 10.2(b)), which shall be payable as provided below. The funds represented by any such checks returned undelivered shall be held in accordance with Section 3.3. The Indenture Trustee (or, if the Indenture Trustee is not the
Paying Agent, the Paying Agent) shall pay all Total Note Interest for any Distribution Date to the Holders of the Notes on the related Record Date even if a portion of such Total Note Interest relates to an earlier Distribution Date. 

(g)    All principal and interest payments on each Class of Notes shall be made pro rata to the Holders
of such Class. The Indenture Trustee shall, before the Distribution Date on which the Issuer expects to pay the final installment of principal of and interest on any Note, notify the Holder of such Note as of the related Record Date of such final
installment. Such notice shall be mailed or transmitted by facsimile and shall specify that such final installment shall be payable only upon presentation and surrender of such Note and shall specify the place where such Note may be presented and
surrendered for payment of such installment. Notices in connection with redemption of Notes shall be mailed to Noteholders as provided in Section 10.2. 

  
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 (h)    Notwithstanding the foregoing, the unpaid principal amount of the
Notes shall be due and payable, to the extent not previously paid, on the date on which the Notes have been declared immediately due and payable following an Event of Default. On each Distribution Date following acceleration of the Notes, upon
receipt of instructions from the Servicer pursuant to Section 4.6(d) of the Sale and Servicing Agreement, the Indenture Trustee (or, if the Indenture Trustee is not the Paying Agent, the Paying Agent) shall apply or cause to be applied the
amount on deposit in the Note Payment Account on such Distribution Date in respect of principal together with all Excess Collections, if any, to make the following payments in the following order of priority: 

 

	 	(i)	to the Class A-1 Noteholders until the principal amount of the Class A-1 Notes has been paid in full; 


 

	 	(ii)	to the Holders of each Class of the remaining Class A Notes, pro rata based on the outstanding principal amount of such Class as of such Distribution Date, until the principal amount of each
such Class of the remaining Class A Notes has been paid in full; 

  

	 	(iii)	to the Class B Noteholders until the principal amount of the Class B Notes has been paid in full; 

  

	 	(iv)	to the Class C Noteholders until the principal amount of the Class C Notes has been paid in full; and 

  

	 	(v)	to the Class D Noteholders until the principal amount of the Class D Notes has been paid in full. 


(i)    The Indenture Trustee (or, if the Indenture Trustee is not the Paying Agent, the Paying Agent) shall transfer
amounts from the Reserve Account and deposit amounts transferred from the Reserve Account, in each case at the written direction of the Servicer and on behalf of the Noteholders, in accordance with the Sale and Servicing Agreement. 

Section 2.9    Cancellation. All Notes surrendered for payment, registration of transfer, exchange or
redemption in whole pursuant to Section 10.1(a) or Section 10.2(b) shall, if surrendered to any Person other than the Indenture Trustee, be delivered to the Indenture Trustee and shall be promptly canceled by the Indenture Trustee. The
Issuer may at any time deliver to the Indenture Trustee for cancellation any Notes previously authenticated and delivered hereunder which the Issuer may have acquired in any manner whatsoever, and all Notes so delivered shall be promptly canceled by
the Indenture Trustee. No Notes shall be authenticated in lieu of or in exchange for any Notes canceled as provided in this Section 2.9, except as expressly permitted by this Indenture. All canceled Notes may be held or disposed of by the
Indenture Trustee in accordance with its standard retention or disposal policy as in effect at the time unless the Issuer shall direct by an Issuer Order that they be destroyed or returned to it, provided that such Issuer Order is timely and the
Notes have not been previously disposed of by the Indenture Trustee. 
 Section 2.10    Release of
Collateral. Subject to Section 11.1 and the terms of the Transaction Documents, the Indenture Trustee shall release property from the lien of this 

  
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Indenture only upon receipt of an Issuer Request (which shall include delivery instructions and other relevant information) accompanied by an Issuer’s Certificate, an Opinion of Counsel and
Independent Certificates in accordance with TIA Sections 314(c) and 314(d)(1) or an Opinion of Counsel in lieu of such Independent Certificates to the effect that the TIA does not require any such Independent Certificates. If the Commission shall
issue an exemptive order under TIA Section 304(d) modifying the Indenture Trustee’s obligations under TIA Sections 314(c) and 314(d)(1), the Indenture Trustee shall release property from the lien of this Indenture in accordance with the
conditions and procedures set forth in such exemptive order. 
 Section 2.11    Book-Entry Notes. The Notes
(other than any Retained Notes), upon original issuance, shall be issued in the form of typewritten Notes representing Book-Entry Notes, to be delivered to The Depository Trust Company, the initial Clearing Agency, by, or on behalf of, the Issuer.
The Book-Entry Notes shall be such Notes registered initially or from time to time on the Note Register in the name of Cede & Co., the nominee of the initial Clearing Agency, and no Note Owner thereof shall receive a definitive Note
representing such Note Owner’s interest in such Note, except as provided in Section 2.13. Unless and until definitive, fully registered Notes (the “Definitive Notes”) have been issued to such Note Owners pursuant to
Section 2.13: 
  

	 	(i)	the provisions of this Section 2.11 shall be in full force and effect; 

  

	 	(ii)	the Note Registrar and the Indenture Trustee shall be entitled to deal with the Clearing Agency for all purposes of this Indenture (including the payment of principal of and interest on the Notes and the giving of
instructions or directions hereunder) as the sole Holder of the Notes, and shall have no obligation to the Note Owners; 

  

	 	(iii)	to the extent that the provisions of this Section 2.11 conflict with any other provisions of this Indenture, the provisions of this Section 2.11 shall control; 


 

	 	(iv)	the rights of Note Owners shall be exercised only through the Clearing Agency and shall be limited to those established by law and agreements between such Note Owners and the Clearing Agency and/or the Clearing Agency
Participants pursuant to the Note Depository Agreement; unless and until Definitive Notes are issued pursuant to Section 2.13, the initial Clearing Agency shall make book-entry transfers among the Clearing Agency Participants and receive and
transmit payments of principal of and interest on the Notes to such Clearing Agency Participants; and 

  

	 	(v)	 whenever this Indenture requires or permits actions to be taken based upon written instructions or directions of
Holders of Notes (or Holders of Notes of any Class thereof, including the Controlling Class) evidencing a specified percentage of the principal amount of the Notes or any Class of Notes Outstanding,




  
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the Clearing Agency shall be deemed to represent such percentage only to the extent that it has received instructions to such effect from Note Owners and/or Clearing Agency Participants owning or
representing, respectively, such required percentage of the beneficial interest in the Notes or such Class of Notes and has delivered such instructions to the Indenture Trustee. 


Section 2.12    Notices to Clearing Agency. Whenever a notice or other communication to the Noteholders is
required under this Indenture, unless and until Definitive Notes shall have been issued to such Note Owners pursuant to Section 2.13, the Indenture Trustee shall give all such notices and communications specified herein to be given to Holders
of the Notes to the Clearing Agency, and shall have no obligation to such Note Owners. 

Section 2.13    Definitive Notes. The Retained Notes, upon original issuance, will be in the form of
Definitive Notes, but, at the request of all of the holders thereof, may be exchanged for Book-Entry Notes. If (i) the Administrator or the Servicer advises the Indenture Trustee in writing that the Clearing Agency is no longer willing or able
to properly discharge its responsibilities with respect to the Book-Entry Notes and the Indenture Trustee or the Administrator is unable to locate a qualified successor or (ii) after the occurrence of an Event of Default or an Event of
Servicing Termination, Note Owners of the Book-Entry Notes representing beneficial interests aggregating not less than 51% of the principal amount of such Notes advise the Indenture Trustee and the Clearing Agency in writing that the continuation of
a book-entry system through the Clearing Agency is no longer in the best interests of such Note Owners, then the Clearing Agency shall notify all Note Owners and the Indenture Trustee in writing of the occurrence of such event and of the
availability of Definitive Notes to Note Owners requesting the same. Upon surrender to the Indenture Trustee of the typewritten Notes representing the Book-Entry Notes by the Clearing Agency, accompanied by registration instructions, the Issuer, at
its own expense, shall execute and deliver the Definitive Notes to the Indenture Trustee and the Indenture Trustee shall authenticate the Definitive Notes in accordance with the instructions of the Clearing Agency. None of the Issuer, the Note
Registrar or the Indenture Trustee shall be liable for any delay in delivery of such instructions and may conclusively rely on, and shall be protected in relying on, such instructions. Upon the issuance of Definitive Notes, the Indenture Trustee
shall recognize the Holders of the Definitive Notes as Noteholders. 
 Section 2.14    Authenticating
Agents. 
 (a)    The Indenture Trustee may appoint one or more Persons (each, an “Authenticating
Agent”) with power to act on its behalf and subject to its direction in the authentication of Notes in connection with issuance, transfers and exchanges under Section 2.2, Section 2.3, Section 2.5 and Section 2.6, as
fully to all intents and purposes as though each such Authenticating Agent had been expressly authorized by those Sections to authenticate such Notes. For all purposes of this Indenture, the authentication of Notes by an Authenticating Agent
pursuant to this Section 2.14 shall be deemed to be the authentication of Notes “by the Indenture Trustee”. 

  
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 (b)    Any entity into which any Authenticating Agent may be merged or
converted or with which it may be consolidated, or any entity resulting from any merger, consolidation or conversion to which any Authenticating Agent shall be a party, or any entity succeeding to all or substantially all of the corporate trust
business of any Authenticating Agent, shall be the successor of such Authenticating Agent hereunder, without the execution or filing of any document or any further act on the part of the parties hereto or such Authenticating Agent or such successor
entity. 
 (c)    Any Authenticating Agent may at any time resign by giving written notice of resignation to the
Indenture Trustee and the Owner Trustee. The Indenture Trustee may at any time terminate the agency of any Authenticating Agent by giving written notice of termination to such Authenticating Agent and the Owner Trustee. Upon receiving such notice of
resignation or upon such a termination, the Indenture Trustee may appoint a successor Authenticating Agent and shall give written notice of any such appointment to the Owner Trustee. 

(d)    The Administrator agrees to pay to each Authenticating Agent from time to time reasonable compensation for its
services. The provisions of Section 2.9 and Section 6.4 shall be applicable to any Authenticating Agent. 

Section 2.15    Retained Notes. 

(a)    As of the date of this Indenture, the Retained Notes have not been registered under the Securities Act and will not
be listed on any exchange. Unless and until such Notes have been sold pursuant to a transaction registered under the Securities Act, no transfer of such a Note shall be made unless such transfer is made pursuant to an effective registration
statement under the Securities Act and any applicable state securities laws or is exempt from the registration requirements under the Securities Act and such state securities laws. Except in a transfer pursuant to Rule 144A or a transfer to the
Depositor (or any other entity whose separate existence from the Trust is disregarded for federal income tax purposes) or by the Depositor (or any other entity whose separate existence from the Trust is disregarded for federal income tax purposes)
to an Affiliate thereof, in the event that a transfer is to be made in reliance upon an exemption from the Securities Act and state securities laws, in order to assure compliance with the Securities Act and such laws, the Noteholder desiring to
effect such transfer and such Noteholder’s prospective transferee shall each certify to the Trust, the Indenture Trustee and the Depositor in writing the facts surrounding the transfer in substantially the forms set forth in Exhibit F
(the “Transferor Certificate”) and Exhibit G (the “Investment Letter”), in each case, with such revisions or modifications as may be determined by the Depositor. Except in a transfer pursuant to Rule 144A or
a transfer to the Depositor or by the Depositor (or any other entity whose separate existence from the Trust is disregarded for federal income tax purposes) to an Affiliate thereof, there shall also be delivered to the Depositor and the Indenture
Trustee an Opinion of Counsel that such transfer may be made pursuant to an exemption from the Securities Act, which opinion of counsel shall not be an expense of the Depositor, the Trust, the Owner Trustee or the Indenture Trustee (unless it is the
transferee from whom such opinion is to be obtained). The Trust shall cause the Depositor to provide to any Noteholder and any prospective transferee designated by any such Noteholder information regarding the Retained Notes and the Receivables and
such other information as shall be necessary to satisfy the condition to eligibility 

  
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set forth in Rule 144A(d)(4) for transfer of any such Retained Notes without registration thereof under the Securities Act pursuant to the registration exemption provided by Rule 144A. Each
Noteholder desiring to effect such a transfer shall, and does hereby agree to, indemnify the Issuing Entity, the Owner Trustee, the Indenture Trustee, the Depositor and CarMax (in any capacity) against any liability that may result if the transfer
is not so exempt or is not made in accordance with federal and state securities laws. 
 (b)    (i) Sale, pledge or
transfer of a Retained Note may only be made to a Person who is a United States Person (within the meaning of Section 7701(a)(30) of the Code) and is not acquiring such Retained Notes with the assets of any Plan that is subject to Title I of
ERISA or Section 4975 of the Code; and (ii) no sale, pledge, or transfer of a Retained Note shall be made (x) to any one person in an amount less than $2,000,000 (or such other amount as the Depositor may determine in order to prevent
the Trust from being treated as a “publicly traded partnership” under Section 7704 of the Code) or (y) to a Special Pass-Through Entity, in each case under this clause (ii), unless (A) an opinion of counsel
satisfactory to the Indenture Trustee and the Depositor that such sale, pledge, or transfer shall not cause the Trust to be treated as an association (or publicly traded partnership) taxable as a corporation for federal income tax purposes shall
have been delivered to the Indenture Trustee and the Depositor and (B) the Depositor shall have provided prior written approval; provided, however, that the restrictions in Section 2.15(b)(i) and
(ii) above shall not continue to apply to such Retained Notes (covered by the opinion described in this clause) in the event counsel satisfactory to the Indenture Trustee and the Depositor has rendered an opinion, with respect to the
sale, pledge or transfer by the Depositor or an Affiliate thereof, to the effect that the Retained Notes to be sold, pledged, or transferred will be characterized as indebtedness for federal income tax purposes. Any transferee, other than the
Depositor or any other entity whose separate existence from the Trust is disregarded for federal income tax purposes, acquiring a Retained Note or an interest therein shall be deemed to have made the representations set forth in
Section 2.4 (as if Section 2.4(a) applied to the Retained Notes). Any attempted sale, pledge or other transfer in contravention of this Section 2.15(b) will be void ab
initio and the purported transferor will continue to be treated as the owner of the Retained Note. For the purposes of this Section 2.15(b), “Special Pass-Through Entity” means a grantor trust, S corporation, or
partnership (as determined, in each case, for Federal income tax purposes) where more than 50% of the value of any beneficial owner’s interest in such pass through entity is attributable to the pass-through entity’s interest in the
Retained Note. 
 (c)    By directly or indirectly acquiring a Retained Note in a transaction pursuant to Rule 144A,
each initial purchaser, transferee and owner of a beneficial interest will be deemed to represent, warrant and agree as follows: 
  

	 	(i)	 it understands that such Notes have not been registered under the Securities Act, and may not be sold except as
permitted in the following sentence. It understands and agrees, on its own behalf and on behalf of any accounts for which it is acting as hereinafter stated, (x) that such Notes are being offered only in a transaction not involving any public
offering within the meaning of the Securities Act and (y) that such Notes may be resold, pledged or transferred only (i) to the Depositor, (ii) to an “accredited investor”




  
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as defined in Rule 501(a)(1),(2),(3) or (7) of Regulation D under the Securities Act (an “Accredited Investor”) acting for its own account (and not for the account of
others) or as a fiduciary or agent for others (which others also are Accredited Investors unless the holder is a bank acting in its fiduciary capacity) that executes a certificate substantially in the form of the Investment Letter, (iii) so
long as such Note is eligible for resale pursuant to Rule 144A under the Securities Act, to a person whom it reasonably believes after due inquiry is a “qualified institutional buyer” as defined in Rule 144A, acting for its own account
(and not for the account of others) or as a fiduciary or agent for others (which others also are “qualified institutional buyers”) to whom notice is given that the resale, pledge or transfer is being made in reliance on Rule 144A or
(iv) in a sale, pledge or other transfer made in a transaction otherwise exempt from the registration requirements of the Securities Act, in which case the Indenture Trustee shall require that both the prospective transferor and the prospective
transferee certify to the Indenture Trustee and the Depositor in writing the facts surrounding such transfer, which certification shall be in form and substance satisfactory to the Indenture Trustee and the Depositor. Except in the case of a
transfer described in clauses (i) or (iii) above, the Indenture Trustee shall require that a written opinion of counsel (which will not be at the expense of the Depositor, any Affiliate of the Depositor or the
Indenture Trustee), satisfactory to the Indenture Trustee and the Depositor, be delivered to the Indenture Trustee and the Depositor to the effect that such transfer will not violate the Securities Act, and will be effected in accordance with any
applicable securities laws of each state of the United States. It will notify any purchaser of such Notes from it of the above resale restrictions, if then applicable. It further understands that in connection with any transfer of such Notes by it
that the Indenture Trustee and the Depositor may request, and if so requested it will furnish, such certificates and other information as they may reasonably require to confirm that any such transfer complies with the foregoing restrictions;


  

	 	(ii)	it is a “qualified institutional buyer” as defined under Rule 144A under the Securities Act and is acquiring such Notes for its own account (and not for the account of others) or as a fiduciary or agent for
others (which others also are “qualified institutional buyers”). It is familiar with Rule 144A under the Securities Act and is aware that the seller of such Notes and other parties intend to rely on the foregoing representations,
warranties and acknowledgements and the exemption from the registration requirements of the Securities Act provided by Rule 144A; 


  
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	 	(iii)	it understands that Trust, the Indenture Trustee, the Depositor and others will rely upon the truth and accuracy of the foregoing acknowledgments, representations and agreements, and it agrees that if any of the
acknowledgments, representations and warranties deemed to have been made by it by its purchase of such Notes, for its own account or for one or more accounts as to each of which it exercises sole investment discretion, are no longer accurate, it
shall promptly notify the Depositor; and 

  

	 	(iv)	the Trust, the Indenture Trustee and the Depositor are entitled to rely upon the foregoing representations, warranties and acknowledgements and are irrevocably authorized to produce the foregoing representations,
warranties and acknowledgments or a copy hereof to any interested party in any administrative or legal proceeding or official inquiry with respect to the matters covered hereby. 


(d)    Any transfer in violation of this Section 2.15 will be of no force and effect, will be
void ab initio, and will not operate to transfer any rights to the transferee, notwithstanding any instructions to the contrary to the Trust, the Indenture Trustee, or any intermediary. The Trust (or any other entity whose separate existence from
the Trust is disregarded for federal income tax purposes) may sell any Retained Notes acquired in violation of this Section 2.15 at the cost and risk of the purported owner. If at any time the Trust determines or is
notified that the Noteholder or Note Owner, as the case may be, was in breach, at the time given, of any of the representations set forth in this Section 2.15, the Trust may consider the acquisition of such Retained Note or
such beneficial interest in such Retained Note void and require that such Retained Note or such beneficial interest therein be transferred to a person designated by the Trust. If the transferee fails to transfer such Retained Note or such beneficial
interests in such Retained Note within thirty (30) days after notice of the voided transfer, then the Trust shall cause such Noteholder’s interest or Note Owner’s interest in such Retained Note to be transferred in a commercially
reasonable sale arranged by the Trust (conducted by the Trust or an agent of the Trust in accordance with Section 9-610(b) of the UCC as applied to securities that are sold on a recognized market or that
may decline speedily in value), subject to satisfaction of the requirements set forth in this Section 2.15. 

(e)    During the period described in 17 CFR Part 246.12(f)(1), no Noteholder or Note Owner holding any Notes in
satisfaction of CarMax’s obligations under 17 CFR Part 246 may transfer any such Note (or interest therein) until the expiration of such period; provided, that, during such period, such Noteholder or Note Owner may transfer any such Note
(or interest therein) to CarMax or any “majority-owned affiliate” (as such term is defined in 17 CFR Part 246.2) of CarMax in accordance with the restrictions contained in 17 CFR Part 246.12. Any purported transfer of any such Note not in
accordance with this Section 2.15(e) shall be null and void and shall not be given effect for any purpose whatsoever. 

(f)    Upon any sale or transfer of any Retained Note (or interest therein) as of the Closing Date, if for tax or other
reasons it may be necessary to track any such Note (e.g., if the Notes have original issue discount), tracking conditions such as requiring separate CUSIPs or 

  
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that such Notes be in definitive registered form may be required by the Depositor or the Administrator as a condition to such transfer and the Trust shall cause the Administrator to provide prior
written notice of such sale or transfer and tracking condition to the Indenture Trustee. 
 ARTICLE III 

COVENANTS 

Section 3.1    Payment of Principal and Interest. The Issuer shall duly and punctually pay the principal of
and interest, if any, on the Notes in accordance with the terms of the Notes and this Indenture. Amounts properly withheld under the Code by any Person from a payment to any Noteholder of interest and/or principal shall be considered as having been
paid by the Issuer to such Noteholder for all purposes of this Indenture. 
 Section 3.2    Maintenance of
Office or Agency. The Note Registrar shall maintain in St. Paul, Minnesota, an office or agency where Notes may be surrendered for registration of transfer or exchange, and where notices and demands to or upon the Note Registrar in respect of
the Notes and this Indenture may be served. The Note Registrar shall give prompt written notice to the Issuer, the Depositor and the Indenture Trustee of the location, and of any change in the location, of any such office or agency. If, at any time,
the Issuer and the Note Registrar shall fail to maintain any such office or agency or shall fail to furnish the Indenture Trustee with the address thereof, such surrenders, notices and demands may be made or served at the Corporate Trust Office, and
the Issuer hereby appoints the Indenture Trustee as its agent to receive all such surrenders, notices and demands. 

Section 3.3    Money for Payments To Be Held in Trust. 

(a)    As provided in Section 8.2, all payments of amounts due and payable with respect to the Notes that are to be
made from amounts withdrawn from the applicable Trust Accounts shall be made on behalf of the Issuer by the Indenture Trustee or by another Paying Agent, and no amounts so withdrawn from the applicable Trust Accounts shall be paid over to the
Issuer, except as provided in this Section 3.3. 
 (b)    On or before each Distribution Date and Redemption Date,
the Issuer shall deposit or cause to be deposited in the Note Payment Account an aggregate sum sufficient to pay the amounts then becoming due under the Notes, such sum to be held in trust for the benefit of the Persons entitled thereto, and (unless
the Paying Agent is the Indenture Trustee) shall promptly notify the Indenture Trustee of its action or failure so to act. 

(c)    The Issuer shall cause each Paying Agent other than the Indenture Trustee to execute and deliver to the Indenture
Trustee an instrument in which such Paying Agent shall agree with the Indenture Trustee (and if the Indenture Trustee acts as Paying Agent, it hereby so agrees), subject to the provisions of this Section 3.3, that such Paying Agent shall: 

 

	 	(i)	hold all sums held by it for the payment of amounts due with respect to the Notes in trust for the benefit of the Persons entitled thereto until such sums shall be paid to such Persons or otherwise disposed of as herein
provided and pay such sums to such Persons as herein provided; 


  
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	 	(ii)	give the Indenture Trustee notice of any default by the Issuer (or any other obligor upon the Notes) of which it has actual knowledge in the making of any payment required to be made with respect to the Notes;


  

	 	(iii)	at any time during the continuance of any such default, upon the written request of the Indenture Trustee, forthwith pay to the Indenture Trustee all sums so held in trust by such Paying Agent; 


 

	 	(iv)	immediately resign as a Paying Agent and forthwith pay to the Indenture Trustee all sums held by it in trust for payment of the Notes if at any time it ceases to meet the standards required to be met by a Paying Agent
at the time of its appointment; and 

  

	 	(v)	comply with all requirements of the Code and any State or local tax law with respect to the withholding from any payments made by it on the Notes of any applicable withholding taxes imposed thereon and with respect to
any applicable reporting requirements in connection therewith. 

 (d)    The Issuer may at any time, for
the purpose of obtaining the satisfaction and discharge of this Indenture or for any other purpose, by Issuer Order direct any Paying Agent to pay to the Indenture Trustee all sums held in trust by such Paying Agent, such sums to be held by the
Indenture Trustee upon the same trusts as those upon which such sums were held by such Paying Agent, and upon such payment by any Paying Agent to the Indenture Trustee, such Paying Agent shall be released from all further liability with respect to
such sums. 
 (e)    Subject to applicable laws with respect to escheat of funds, any money held by the Indenture
Trustee or any Paying Agent in trust for the payment of any amount due with respect to any Note and remaining unclaimed for two (2) years after such amount has become due and payable shall be discharged from such trust and be paid to the Issuer
on Issuer Request, and the Holder of such Note shall thereafter, as an unsecured general creditor, look only to the Issuer for payment thereof (but only to the extent of the amounts so paid to the Issuer), and all liability of the Indenture Trustee
or such Paying Agent with respect to such trust money shall thereupon cease; provided, however, that the Indenture Trustee or such Paying Agent, before being required to make any such repayment, shall at the expense and direction of
the Issuer cause to be published once, in a newspaper published in the English language, customarily published on each Business Day and of general circulation in The City of New York, notice that such money remains unclaimed and that, after a date
specified therein, which shall not be less than thirty (30) days from the date of such publication, any unclaimed balance of such money then remaining shall be repaid to the Issuer. The Indenture Trustee shall also adopt and employ, at the
expense and direction of the Issuer, any other reasonable means of notification of such repayment (including mailing notice of such repayment to Holders whose Notes have been called but have not been surrendered for redemption in whole pursuant to
Section 10.1 or whose right to or interest in monies due and payable but not claimed is determinable from the records of the Indenture Trustee or of any Paying Agent at the last address of record for each such Holder). 

  
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 Section 3.4    Existence. The Issuer shall keep in full effect
its existence, rights and franchises as a statutory trust under the laws of the State of Delaware (unless it becomes, or any successor Issuer hereunder is or becomes, organized under the laws of any other State or of the United States, in which case
the Issuer shall keep in full effect its existence, rights and franchises under the laws of such other jurisdiction) and shall obtain and preserve its qualification to do business in each jurisdiction in which such qualification is or shall be
necessary to protect the validity and enforceability of this Indenture, the Notes, the Collateral and each other instrument or agreement included in the Trust Estate. 

Section 3.5    Protection of Trust Estate. 

(a)    The Issuer shall from time to time authorize, execute and deliver all such supplements and amendments hereto and all
such financing statements, continuation statements, instruments of further assurance and other instruments, and shall take such other action, necessary or advisable to: 
  

	 	(i)	maintain or preserve the lien and security interest (and the priority thereof) of this Indenture or carry out more effectively the purposes hereof; 


 

	 	(ii)	perfect, publish notice of or protect the validity of any Grant made or to be made by this Indenture; 

  

	 	(iii)	enforce any of the Collateral; or 

  

	 	(iv)	preserve and defend title to the Trust Estate and the rights of the Indenture Trustee and the Noteholders in the Trust Estate against the claims of all Persons. 


(b)    The Issuer hereby authorizes the Indenture Trustee to file any financing statement or continuation statement
required pursuant to this Section 3.5 and designates the Indenture Trustee as its agent and attorney-in-fact to execute any other instrument required to be executed
pursuant to this Section 3.5. The Issuer further hereby authorizes the Indenture Trustee to file any financing statement and amendments thereto that indicate the Collateral (A) as all assets of the Issuer, all personal property of the
Issuer or words of similar effect, regardless of whether any particular asset included in the Collateral falls within the scope of Article 9 of the Relevant UCC, or (B) as being of an equal or lesser scope or with greater detail. If the
Indenture Trustee prepares or files any such financing statement, continuation statement or amendment thereto, the Indenture Trustee’s responsibility with respect to such financing statement, continuation statement or amendment shall be subject
to the provisions of Sections 6.1 and 6.4 hereof. 

  
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 Section 3.6    Opinions as to Trust Estate. 

(a)    On the Closing Date, the Issuer shall deliver to the Indenture Trustee an Opinion of Counsel substantially in the
form attached as Exhibit E. 
 (b)    On or before March 31 of each year (commencing with the year 2019), the
Issuer shall deliver to the Depositor and the Indenture Trustee an Opinion of Counsel either stating that, in the opinion of such counsel, such action has been taken with respect to the recording, filing,
re-recording and refiling of this Indenture, any indentures supplemental hereto and any other requisite documents and with respect to the authorization and filing of any financing statements and continuation
statements as is necessary to maintain the lien and security interest created by this Indenture and reciting the details of such action or stating that, in the opinion of such counsel, no such action is necessary to maintain such lien and security
interest. Such Opinion of Counsel shall also describe the recording, filing, re-recording and refiling of this Indenture, any indentures supplemental hereto and any other requisite documents and the
authorization and filing of any financing statements and continuation statements that shall, in the opinion of such counsel, be required to maintain the lien and security interest of this Indenture until March 31 in the following year. 

Section 3.7    Performance of Obligations; Servicing of Receivables. 

(a)    The Issuer shall not take any action and shall use its best efforts not to permit any action to be taken by others
that would release any Person from any of such Person’s material covenants or obligations under any instrument or agreement included in the Trust Estate or that would result in the amendment, hypothecation, subordination, termination or
discharge of, or impair the validity or effectiveness of, any such instrument or agreement, except as expressly provided in this Indenture and the other Transaction Documents. 

(b)    The Issuer may contract with other Persons to assist it in performing its duties under this Indenture, and any
performance of such duties by a Person identified to the Indenture Trustee in an Issuer’s Certificate shall be deemed to be action taken by the Issuer. Initially, the Issuer has contracted with the Servicer and the Administrator to assist the
Issuer in performing its duties under this Indenture. 
 (c)    The Issuer shall punctually perform and observe all of
its obligations and agreements contained in this Indenture, the other Transaction Documents and the instruments and agreements included in the Trust Estate, including filing or causing to be filed all financing statements and continuation statements
required to be filed under the Relevant UCC by the terms of this Indenture and the Sale and Servicing Agreement in accordance with and within the time periods provided for herein and therein. 

(d)    If the Issuer shall have knowledge of the occurrence of an Event of Servicing Termination, the Issuer shall
promptly notify the Depositor, the Indenture Trustee, the Rating Agencies and the Administrator in writing of such event and shall specify in such notice the action, if any, the Issuer is taking in respect of such default. If an Event of Servicing
Termination shall arise from the failure of the Servicer to perform any of its duties or obligations under the Sale and Servicing Agreement with respect to the Receivables, the Issuer shall take all reasonable steps available to it to remedy such
failure. 

  
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 (e)    As promptly as possible after the giving of notice of termination to
the Servicer of the Servicer’s rights and powers pursuant to Section 8.1 of the Sale and Servicing Agreement, the Issuer may (subject to the rights of the Indenture Trustee to direct such appointment pursuant to Section 8.2 of the
Sale and Servicing Agreement) appoint a successor servicer (the “Successor Servicer”), and such Successor Servicer shall accept its appointment by a written assumption in a form acceptable to the Indenture Trustee. In the event
that a Successor Servicer has not been appointed or has not accepted its appointment at the time when the Servicer ceases to act as Servicer, the Indenture Trustee, without further action, shall be the successor to the Servicer in all respects in
accordance with Section 8.2 of the Sale and Servicing Agreement. The Indenture Trustee may resign as the Servicer by giving written notice of such resignation to the Issuer and in such event shall be released from such duties and obligations,
such release not to be effective until the date a new servicer enters into a servicing agreement with the Issuer as provided below. Upon delivery of any such notice to the Issuer, the Issuer shall obtain a new servicer as the Successor Servicer
under the Sale and Servicing Agreement. Any Successor Servicer (other than the Indenture Trustee) shall (i) be an established financial institution having a net worth of not less than $50,000,000 and whose regular business includes the
servicing of motor vehicle installment sale contracts and (ii) enter into a servicing agreement with the Issuer having substantially the same provisions as the provisions of the Sale and Servicing Agreement applicable to the Servicer. If,
within thirty (30) days after the delivery of the notice referred to above, the Issuer shall not have obtained such a new servicer, the Indenture Trustee may appoint, or may petition a court of competent jurisdiction to appoint, a Successor
Servicer. In connection with any such appointment, the Indenture Trustee may make such arrangements for the compensation of such successor as it and such successor shall agree, subject to the limitations set forth below and in the Sale and Servicing
Agreement, and, in accordance with Section 8.2 of the Sale and Servicing Agreement, the Issuer shall enter into an agreement with such successor for the servicing of the Receivables (such agreement to be in form and substance satisfactory to
the Indenture Trustee). If the Indenture Trustee shall succeed to the Servicer’s duties as servicer of the Receivables as provided herein, it shall do so in its individual capacity and not in its capacity as Indenture Trustee and, accordingly,
the provisions of Article VI shall be inapplicable to the Indenture Trustee in its duties as the successor to the Servicer and the servicing of the Receivables. In case the Indenture Trustee shall become successor to the Servicer under the Sale and
Servicing Agreement, the Indenture Trustee shall be entitled to appoint as Servicer any one of its Affiliates; provided, however, that the Indenture Trustee, in its capacity as the Servicer, shall be fully liable for the actions and
omissions of such Affiliate in such capacity as Successor Servicer. Notwithstanding any other provisions of this Indenture to the contrary, in no event shall the Indenture Trustee be liable for any servicing fee or for any differential in the amount
of the servicing fee paid under the Sale and Servicing Agreement and the amount necessary to induce any Successor Servicer to act as Successor Servicer under the Sale and Servicing Agreement. 

(f)    Upon any termination of the Servicer’s rights and powers pursuant to Section 8.1 of the Sale and
Servicing Agreement, the Issuer shall promptly notify the Depositor, the Indenture Trustee, the Administrator and the Rating Agencies in writing of such termination. Upon any appointment of a Successor Servicer by the Issuer, the Issuer shall
promptly notify the Depositor, the Indenture Trustee, the Administrator and the Rating Agencies in writing of such appointment, specifying in such notice the name and address of such Successor Servicer. 

  
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 (g)    The Issuer shall not waive timely performance by the Depositor, the
Seller or the Servicer of their respective obligations under the Transaction Documents if such waiver would reasonably be expected to materially adversely affect the interests of the Noteholders. 

Section 3.8    Negative Covenants. 

(a)    If any Notes are Outstanding, the Issuer shall not: 

 

	 	(i)	except as expressly permitted by this Indenture, the Trust Agreement, the Receivables Purchase Agreement or the Sale and Servicing Agreement, sell, transfer, exchange or otherwise dispose of any of the properties or
assets of the Issuer, including those included in the Trust Estate, unless directed to do so in writing by the Indenture Trustee; 

  

	 	(ii)	claim any credit on, or make any deduction from the principal or interest payable in respect of, the Notes (other than amounts properly withheld from such payments under the Code or applicable State law) or assert any
claim against any present or former Noteholder by reason of the payment of taxes levied or assessed upon the Issuer; 

  

	 	(iii)	dissolve or liquidate in whole or in part; 

  

	 	(iv)	(A) permit the validity or effectiveness of this Indenture to be impaired, or permit the lien of this Indenture to be amended, hypothecated, subordinated, terminated or discharged, or permit any Person to be released
from any covenants or obligations with respect to the Notes under this Indenture except as may be expressly permitted hereby, (B) permit any lien (including any lien arising in connection with any tax imposed under HB3), charge, excise, claim,
security interest, mortgage or other encumbrance (other than the lien of this Indenture) to be created on or extend to or otherwise arise upon or burden the Trust Estate or any part thereof or any interest therein or the proceeds thereof (other than
tax liens, mechanics’ liens and other liens that arise by operation of law, in each case on any of the Financed Vehicles and arising solely as a result of an action or omission of the related Obligor) or (C) permit the lien of this
Indenture not to constitute a valid and perfected first priority (other than with respect to any such tax, mechanics’ or other lien) security interest in the Trust Estate; 


 

	 	(v)	engage in any activities other than financing, acquiring, owning, pledging and managing the Receivables as contemplated by the Receivables Purchase Agreement, the Trust Agreement, the Sale and Servicing Agreement and
this Indenture and activities incidental to such activities; or 


  
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	 	(vi)	incur, assume or guarantee any indebtedness other than the indebtedness evidenced by the Notes or indebtedness otherwise permitted by the Receivables Purchase Agreement, the Trust Agreement, the Sale and Servicing
Agreement or this Indenture. 

 Section 3.9    Annual Statement as to Compliance. 

(a)    On or before May 31 of each year (commencing with the year 2018), the Issuer shall deliver to the Depositor and
the Indenture Trustee an Issuer’s Certificate stating, as to the Authorized Officer signing such Issuer’s Certificate, that: 
  

	 	(i)	a review of the activities of the Issuer during the preceding Trust Fiscal Year (or, in the case of the Issuer’s Certificate to be delivered in the year 2018, during the period beginning on the Closing Date and
ending on the last day of February 2018) and of its performance under this Indenture has been made under such Authorized Officer’s supervision; and 

  

	 	(ii)	to the best of such Authorized Officer’s knowledge, based on such review, the Issuer has complied in all material respects with all conditions and covenants under this Indenture throughout such preceding Trust
Fiscal Year (or, in the case of the Issuer’s Certificate to be delivered in the year 2018, during the period beginning on the Closing Date and ending on the last day of February 2018) or, if there has been a default in its compliance with any
such condition or covenant, specifying each such default known to such Authorized Officer and the nature and status thereof. 


Section 3.10    Issuer May Consolidate, etc., Only on Certain Terms. 

(a)    The Issuer shall not consolidate or merge with or into any other Person, unless: 

 

	 	(i)	the Person formed by or surviving such consolidation or merger (if other than the Issuer) shall be a Person organized and existing under the laws of the United States or any State and shall expressly assume, by an
indenture supplemental hereto, executed and delivered to the Indenture Trustee, in form satisfactory to the Depositor and the Indenture Trustee, the due and punctual payment of the principal of and interest on all Notes and the performance or
observance of every agreement and covenant of this Indenture on the part of the Issuer to be performed or observed, all as provided herein; 


  
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	 	(ii)	immediately after giving effect to such transaction, no Default or Event of Default shall have occurred and be continuing; 

  

	 	(iii)	the Rating Agency Condition shall have been satisfied with respect to such transaction; 

  

	 	(iv)	the Issuer shall have received an Opinion of Counsel (and shall have delivered copies thereof to the Indenture Trustee) to the effect that such transaction will not have any material adverse tax consequence to the
Issuer, any Noteholder or any Certificateholder; 

  

	 	(v)	any action that is necessary to maintain the lien and security interest created by this Indenture shall have been taken; and 

  

	 	(vi)	the Issuer shall have delivered to the Indenture Trustee an Issuer’s Certificate and an Opinion of Counsel, each stating that such consolidation or merger and such supplemental indenture comply with this Article
III and that all conditions precedent provided for in this Indenture relating to such transaction have been complied with (including any filing required by the Exchange Act). 


(b)    Other than as specifically contemplated by the Transaction Documents, the Issuer shall not convey or transfer any
of its properties or assets, including those included in the Trust Estate, to any other Person, unless: 
  

	 	(i)	the Person that acquires by conveyance or transfer the properties or assets of the Issuer the conveyance or transfer of which is hereby restricted (A) shall be a United States citizen or a Person organized and
existing under the laws of the United States or any State, (B) shall expressly assume, by an indenture supplemental hereto, executed and delivered to the Indenture Trustee, in form satisfactory to the Indenture Trustee, the due and punctual
payment of the principal of and interest on all Notes and the performance or observance of every agreement and covenant of this Indenture on the part of the Issuer to be performed or observed, all as provided herein, (C) shall expressly agree
by means of such supplemental indenture that all right, title and interest so conveyed or transferred shall be subject and subordinate to the rights of the Holders of the Notes, (D) unless otherwise provided in such supplemental indenture,
shall expressly agree to indemnify, defend and hold harmless the Issuer against and from any loss, liability or expense arising under or related to this Indenture and the Notes and (E) shall expressly agree by means of such supplemental
indenture that such Person (or if a group of Persons, then one specified Person) shall make all filings with the Commission (and any other appropriate Person) required by the Exchange Act in connection with the Notes; 


  
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	 	(ii)	immediately after giving effect to such transaction, no Default or Event of Default shall have occurred and be continuing; 

  

	 	(iii)	the Rating Agency Condition shall have been satisfied with respect to such transaction; 

  

	 	(iv)	the Issuer shall have received an Opinion of Counsel (and shall have delivered copies thereof to the Indenture Trustee and the Depositor) to the effect that such transaction will not have any material adverse tax
consequence to the Issuer, any Noteholder or any Certificateholder; 

  

	 	(v)	any action that is necessary to maintain the lien and security interest created by this Indenture shall have been taken; and 

  

	 	(vi)	the Issuer shall have delivered to the Indenture Trustee and the Depositor an Issuer’s Certificate and an Opinion of Counsel each stating that such conveyance or transfer and such supplemental indenture comply with
this Article III and that all conditions precedent provided for in this Indenture relating to such transaction have been complied with (including any filing required by the Exchange Act). 


Section 3.11    Successor or Transferee. 

(a)    Upon any consolidation or merger of the Issuer in accordance with Section 3.10(a), the Person formed by or
surviving such consolidation or merger (if other than the Issuer) shall succeed to, and be substituted for, and may exercise every right and power of, the Issuer under this Indenture with the same effect as if such Person had been named as the
Issuer herein. 
 (b)    Upon any conveyance or transfer of all the properties and assets of the Issuer in accordance
with Section 3.10(b), CarMax Auto Owner Trust 2018-1 shall be released from every covenant and agreement of this Indenture to be observed or performed on the part of the Issuer with respect to the Notes
immediately upon the delivery of written notice to the Indenture Trustee and the Depositor stating that CarMax Auto Owner Trust 2018-1 is to be so released. 

Section 3.12    No Other Business. The Issuer shall not engage in any business other than financing,
acquiring, owning and pledging the Receivables in the manner contemplated by this Indenture and the other Transaction Documents, issuing the Notes pursuant to the terms hereof and the Certificate pursuant to the terms of the Trust Agreement and
activities incidental thereto. 
 Section 3.13    No Borrowing. The Issuer shall not issue, incur, assume,
guarantee or otherwise become liable, directly or indirectly, for any indebtedness except for the Notes. 

  
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 Section 3.14    Servicer’s Obligations. The Issuer shall
cause the Servicer to comply with the Sale and Servicing Agreement. 
 Section 3.15    Guarantees, Loans,
Advances and Other Liabilities. Except as contemplated by this Indenture and the other Transaction Documents, the Issuer shall not make any loan or advance or credit to, or guarantee (directly or indirectly or by an instrument having the effect
of assuring another’s payment or performance on any obligation or capability of so doing or otherwise), endorse or otherwise become contingently liable, directly or indirectly, in connection with the obligations, stocks or dividends of, or own,
purchase, repurchase or acquire (or agree contingently to do so) any stock, obligations, assets or securities of, or any other interest in, or make any capital contribution to, any other Person. 

Section 3.16    Capital Expenditures. The Issuer shall not make any expenditure (by long-term or operating
lease or otherwise) for capital assets (either realty or personalty). 
 Section 3.17    Restricted
Payments. The Issuer shall not, directly or indirectly, (i) make any distribution (by reduction of capital or otherwise), whether in cash, property, securities or a combination thereof, to the Owner Trustee or any owner of a beneficial
interest in the Issuer or otherwise with respect to any ownership or equity interest or security in or of the Issuer or to the Servicer, (ii) redeem, purchase, retire or otherwise acquire for value any such ownership or equity interest or
security or (iii) set aside or otherwise segregate any amounts for any such purpose; provided, however, that the Issuer may make, or cause to be made, distributions as contemplated by, and to the extent funds are available for such purpose,
under the Sale and Servicing Agreement, the Trust Agreement or this Indenture. The Issuer shall not, directly or indirectly, make payments to or distributions from the Collection Account, the Note Payment Account, the Certificate Payment Account or
the Reserve Account except in accordance with this Indenture and the other Transaction Documents. 

Section 3.18    Notice of Events of Default. The Issuer shall give the Indenture Trustee, the Depositor, the
Rating Agencies and the Administrator prompt written notice of each Event of Default hereunder, each default on the part of the Depositor or the Servicer of its obligations under the Sale and Servicing Agreement and each default on the part of the
Seller or the Depositor of its obligations under the Receivables Purchase Agreement. 
 Section 3.19    Removal
of Administrator. For so long as any Notes are Outstanding, the Issuer shall not remove the Administrator without cause unless the Rating Agency Condition shall have been satisfied with respect to such removal. 

Section 3.20    Further Instruments and Acts. Upon request of the Indenture Trustee, the Issuer shall execute
and deliver such further instruments and do such further acts as may be reasonably necessary or proper to carry out more effectively the purpose of this Indenture. 

Section 3.21    Sales Finance Company Licenses. The Issuer shall take such action as, in its reasonable
judgment, shall be necessary to maintain the effectiveness of all sales finance company licenses required under the Maryland Code and all licenses required under the Pennsylvania Motor Vehicle Sales Finance Company Act in connection with this
Indenture and the transactions contemplated hereby until the lien and security interest of this Indenture shall no longer be in effect in accordance with the terms hereof. 

  
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 Section 3.22    Representations and Warranties by the Issuer to the
Indenture Trustee. The Issuer hereby represents and warrants to the Indenture Trustee that the representations and warranties regarding creation, perfection and priority of security interests in the Receivables, which are attached to this
Indenture as Appendix A, are true and correct to the extent they are applicable. 
 ARTICLE IV 

SATISFACTION AND DISCHARGE 

Section 4.1    Satisfaction and Discharge of Indenture. 

(a)    This Indenture shall cease to be of further effect with respect to the Notes, except as to (i) rights of
registration of transfer and exchange, (ii) substitution of mutilated, destroyed, lost or stolen Notes, (iii) rights of Noteholders to receive payments of principal thereof and interest thereon, (iv) Section 3.3,
Section 3.4, Section 3.5, Section 3.8, Section 3.10, Section 3.12, Section 3.13, Section 3.16 and Section 3.17, (v) the rights, obligations and immunities of the Indenture Trustee hereunder (including the
rights of the Indenture Trustee under Section 6.7 and the obligations of the Indenture Trustee under Section 4.3) and (vi) the rights of Noteholders as beneficiaries hereof with respect to the property so deposited with the Indenture
Trustee payable to all or any of them, and the Indenture Trustee, on demand of and at the expense of the Issuer, shall execute proper instruments acknowledging satisfaction and discharge of this Indenture with respect to the Notes, when either: 

 

	 	(i)	all Notes of all Classes theretofore authenticated and delivered (other than (i) Notes that have been destroyed, lost or stolen and that have been replaced or paid as provided in Section 2.6 and
(ii) Notes for whose payment money has theretofore been irrevocably deposited in trust or segregated and held in trust by the Issuer and thereafter repaid to the Issuer or discharged from such trust, as provided in Section 3.3) have been
delivered to the Indenture Trustee for cancellation; or 

  

	 	(ii)	(A) all Notes not theretofore delivered to the Indenture Trustee for cancellation have become due and payable and the Issuer has irrevocably deposited or caused to be irrevocably deposited with the Indenture Trustee
(or, if the Indenture Trustee is not the Paying Agent, the Paying Agent), in trust, cash or direct obligations of or obligations guaranteed by the United States (which will mature prior to the date needed), in an amount sufficient to pay and
discharge the entire indebtedness on such Notes when due on the applicable Class Final Distribution Date or Redemption Date (if Notes shall have been called for redemption pursuant to Section 10.1(a)), as the case may be; and



  
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 (B)    the Issuer has paid or caused to be paid all other sums payable by
the Issuer hereunder and under the other Transaction Documents. 
 Section 4.2    Satisfaction, Discharge and
Defeasance of the Notes. 
 (a)    Upon satisfaction of the conditions set forth in Section 4.2(b) below, the
Issuer shall be deemed to have paid and discharged the entire indebtedness on all the Notes Outstanding, and the provisions of this Indenture, as it relates to such Notes, shall no longer be in effect (and the Indenture Trustee, at the expense of
the Issuer, shall execute proper instruments acknowledging the same), except as to: 
  

	 	(i)	the rights of the Noteholders to receive, from the trust funds described in Section 4.2(b)(i), payment of the principal of and interest on the Notes Outstanding at maturity of such principal or interest;


  

	 	(ii)	the obligations of the Issuer with respect to the Notes under Section 2.5, Section 2.6, Section 3.2 and Section 3.3; 


 

	 	(iii)	the obligations of the Issuer to the Indenture Trustee under Section 6.7; and 

  

	 	(iv)	the rights, powers, trusts and immunities of the Indenture Trustee hereunder and the duties of the Indenture Trustee hereunder. 


(b)    The satisfaction, discharge and defeasance of the Notes pursuant to Section 4.2(a) is subject to the
satisfaction of all of the following conditions: 
  

	 	(i)	the Issuer has deposited or caused to be deposited irrevocably (except as provided in Section 4.4) with the Indenture Trustee as trust funds in trust, specifically pledged as security for, and dedicated solely to,
the benefit of the Holders of the Notes, which, through the payment of interest and principal in respect thereof in accordance with their terms will provide, not later than one day prior to the due date of any payment referred to below, money in an
amount sufficient, in the opinion of a nationally recognized firm of independent certified public accountants expressed in a written certification thereof delivered to the Indenture Trustee, to pay and discharge the entire indebtedness on the Notes
Outstanding, for principal thereof and interest thereon to the date of such deposit (in the case of Notes that have become due and payable) or to the maturity of such principal and interest, as the case may be; 


 

	 	(ii)	such deposit will not result in a breach or violation of, or constitute an event of default under, any Transaction Document or other agreement or instrument to which the Issuer is bound; 


  
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	 	(iii)	no Event of Default has occurred and is continuing on the date of such deposit or on the ninety-first (91st) day after such date; 

  

	 	(iv)	the Issuer has delivered to the Depositor and the Indenture Trustee an Opinion of Counsel to the effect that the satisfaction, discharge and defeasance of the Notes pursuant to this Section 4.2 will not cause any
Noteholder to be treated as having sold or exchanged any of its Notes for purposes of Section 1001 of the Code; and 

  

	 	(v)	the Issuer has delivered to the Depositor and the Indenture Trustee an Issuer’s Certificate and an Opinion of Counsel, each stating that all conditions precedent provided for in this Indenture relating to the
defeasance contemplated by this Section 4.2 have been complied with. 


Section 4.3    Application of Trust Money. All monies deposited with the Indenture Trustee pursuant to
Section 4.1 shall be held in trust and applied by the Indenture Trustee, in accordance with the provisions of the Notes and this Indenture, to the payment, either directly or through any Paying Agent, to the Holders of the Notes for the payment
or redemption of which such monies have been deposited with the Indenture Trustee, of all sums due and to become due thereon for principal and interest, but such monies need not be segregated from other funds except to the extent required herein or
in the Sale and Servicing Agreement or required by law. 
 Section 4.4    Repayment of Monies Held by Paying
Agent. In connection with the satisfaction and discharge of this Indenture with respect to the Notes, all monies then held by any Paying Agent other than the Indenture Trustee under the provisions of this Indenture with respect to such Notes
shall, upon demand of the Issuer, be paid to the Indenture Trustee to be held and applied according to Section 3.3, and thereupon such Paying Agent shall be released from all further liability with respect to such monies. 

ARTICLE V 
 REMEDIES 

Section 5.1    Events of Default. 

(a)    “Event of Default” means the occurrence of any one of the following events (whatever the reason for
such event and whether such event shall be voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or order of any court or any order, rule or regulation of any administrative or governmental body): 

 

	 	(i)	default in the payment of any interest on any Note of the Controlling Class when the same becomes due and payable and such default shall continue for a period of five (5) or more Business Days;


  

	 	(ii)	default in the payment of any principal due and payable on any Class of Notes on the related Class Final Distribution Date; 


  
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	 	(iii)	material default in the observance or performance of any covenant or agreement of the Issuer made in this Indenture (other than a covenant or agreement a default in the observance or performance of which is specifically
dealt with elsewhere in this Section 5.1), and such default shall continue or not be cured for a period of sixty (60) days after there shall have been given, by registered or certified mail, to the Issuer by the Depositor or the Indenture
Trustee or to the Issuer, the Depositor and the Indenture Trustee by the Holders of Notes evidencing not less than 25% of the Note Balance of the Controlling Class, a written notice specifying such default and requiring it to be remedied and stating
that such notice is a notice of Default hereunder; 

  

	 	(iv)	any representation or warranty of the Issuer made in this Indenture or in any certificate delivered pursuant hereto or in connection herewith proving to have been incorrect in any material respect as of the time when
the same shall have been made, and the circumstance or condition in respect of which such representation or warranty was incorrect shall not have been eliminated or otherwise cured for a period of thirty (30) days after there shall have been
given, by registered or certified mail, to the Issuer by the Depositor or the Indenture Trustee or to the Issuer, the Depositor and to the Indenture Trustee by the Holders of Notes evidencing not less than 25% of the Note Balance of the Controlling
Class, a written notice specifying such incorrect representation or warranty and requiring it to be remedied and stating that such notice is a notice of Default hereunder; 


 

	 	(v)	the filing of a decree or order for relief by a court having jurisdiction in the premises in respect of the Issuer or any substantial part of the Trust Estate in an involuntary case under any applicable federal or State
bankruptcy, insolvency or other similar law now or hereafter in effect, or appointing a receiver, liquidator, assignee, custodian, trustee, sequestrator or similar official of the Issuer or for any substantial part of the Trust Estate, or ordering
the winding-up or liquidation of the Issuer’s affairs, and such decree or order shall remain unstayed and in effect for a period of sixty (60) consecutive days; and 


 

	 	(vi)	 the commencement by the Issuer of a voluntary case under any applicable federal or State bankruptcy, insolvency
or other similar law now or hereafter in effect, or the consent by the Issuer to the entry of an order for relief in an involuntary case under any such law, or the consent by the Issuer to the appointment or taking possession by a receiver,
liquidator, assignee, custodian, trustee, sequestrator or similar official of the Issuer or for any substantial part of the Trust Estate, or the making by the Issuer of any general 




  
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assignment for the benefit of creditors, or the failure by the Issuer generally to pay its debts as such debts become due, or the taking of any action by the Issuer in furtherance of any of the
foregoing. 

 (b)    The Issuer shall deliver to the Indenture Trustee and the Depositor, within five
(5) days after the occurrence of any event that, with notice or the lapse of time or both, would become an Event of Default under clause (iii) or (iv), written notice of such Default in the form of an Issuer’s Certificate, the status
of such Default and what action the Issuer is taking or proposes to take with respect to such Default. 

Section 5.2    Acceleration of Maturity; Rescission and Annulment. 

(a)    If an Event of Default shall have occurred and be continuing, the Indenture Trustee or the Holders of Notes
evidencing not less than 51% of the Note Balance of the Controlling Class may, upon prior written notice to the Administrator (who shall promptly forward such notice to each Rating Agency), declare the Notes to be immediately due and payable by
written notice to the Issuer (and to the Indenture Trustee if given by Noteholders), the Depositor and the Servicer, and upon any such declaration the unpaid principal amount of the Notes, together with accrued and unpaid interest thereon through
the date of acceleration, shall become immediately due and payable. 
 (b)    If the Notes have been declared
immediately due and payable following an Event of Default, before a judgment or decree for payment of the amount due has been obtained by the Indenture Trustee as hereinafter provided in this Article V, the Holders of Notes evidencing not less than
51% of the Note Balance of the Controlling Class, by written notice to the Issuer, the Depositor, the Indenture Trustee and the Administrator (who shall promptly forward such notice to each Rating Agency), may rescind and annul such declaration of
acceleration and its consequences if: 
  

	 	(i)	the Issuer has paid or deposited with the Indenture Trustee a sum sufficient to pay all principal of and interest on the Notes and all other amounts that would then be due hereunder or upon the Notes if the Event of
Default giving rise to such acceleration had not occurred; and 

  

	 	(ii)	all Events of Default, other than the nonpayment of the principal of the Notes that has become due solely by such acceleration, have been cured or waived as provided in Section 5.12. 


(c)    No such rescission shall affect any subsequent default or impair any right consequent thereto. 

Section 5.3    Collection of Indebtedness and Suits for Enforcement by Indenture Trustee. 

(a)    If (i) default is made in the payment of any interest on any Note when the same becomes due and payable, and
such default continues for a period of five (5) Business Days, or (ii) default is made in the payment of the principal of any Note when the same becomes 

  
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due and payable, the Issuer shall, upon demand of the Indenture Trustee, pay to the Indenture Trustee, for the benefit of the Holders of the Notes, the amount then due and payable on the Notes
for principal and interest, with interest upon the overdue principal at the applicable Note Rate and, to the extent payment at such rate of interest shall be legally enforceable, upon overdue installments of interest at the applicable Note Rate and
in addition thereto such further amount as shall be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses, disbursements and advances of the Indenture Trustee and its agents and counsel and other
amounts due and owing to the Indenture Trustee pursuant to Section 6.7. 
 (b)    If the Issuer shall fail
forthwith to pay such amounts upon such demand, the Indenture Trustee, in its own name and as trustee of an express trust, may institute a Proceeding for the collection of the sums so due and unpaid, and may prosecute such Proceeding to judgment or
final decree, and may enforce the same against the Issuer or any other obligor upon the Notes and collect in the manner provided by law out of the property of the Issuer or such other obligor, wherever situated, the monies adjudged or decreed to be
payable. 
 (c)    If an Event of Default shall have occurred and be continuing, the Indenture Trustee may, as more
particularly provided in Section 5.4, in its discretion, proceed to protect and enforce its rights and the rights of the Noteholders by such appropriate Proceedings as the Indenture Trustee shall deem most effective to protect and enforce such
rights, whether for the specific enforcement of any covenant or agreement in this Indenture or in aid of the exercise of any power granted herein or to enforce any other proper remedy or legal or equitable right vested in the Indenture Trustee by
this Indenture or by law. 
 (d)    If there shall be pending, relative to the Issuer or any other obligor upon the
Notes or any Person having or claiming an ownership interest in the Trust Estate, Proceedings under Title 11 of the United States Code or any other applicable federal or State bankruptcy, insolvency or other similar law, or if a receiver, assignee
or trustee in bankruptcy or reorganization, liquidator, sequestrator or similar official shall have been appointed for or taken possession of the Issuer or its property or such other obligor or Person, or if there shall be pending any other
comparable judicial Proceedings relative to the Issuer or any other obligor upon the Notes, or to the creditors or property of the Issuer or such other obligor, the Indenture Trustee, irrespective of whether the principal of any Notes shall then be
due and payable as therein expressed or by declaration or otherwise and irrespective of whether the Indenture Trustee shall have made any demand pursuant to the provisions of this Section 5.3, shall be entitled and empowered, by intervention in
such Proceedings or otherwise: 
  

	 	(i)	to file and prove a claim or claims for the whole amount of principal and interest owing and unpaid in respect of the Notes and to file such other papers or documents as may be necessary or advisable in order to have
the claims of the Indenture Trustee (including any claim for reasonable compensation to the Indenture Trustee and each predecessor Indenture Trustee, and their respective agents and attorneys, and all other amounts due and owing to the Indenture
Trustee pursuant to Section 6.7) and of the Noteholders allowed in such Proceedings; 


  
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	 	(ii)	unless prohibited by applicable law and regulations, to vote on behalf of the Noteholders in any election of a trustee, a standby trustee or Person performing similar functions in any such Proceedings;


  

	 	(iii)	to collect and receive any monies or other property payable or deliverable on any such claims and to pay all amounts received with respect to the claims of the Noteholders and of the Indenture Trustee on their behalf;


  

	 	(iv)	to file such proofs of claim and other papers or documents as may be necessary or advisable in order to have the claims of the Indenture Trustee or the Noteholders allowed in any judicial proceedings relative to the
Issuer, its creditors and its property; and 

  

	 	(v)	and any trustee, receiver, liquidator, custodian or other similar official in any such Proceeding is hereby authorized by each of the Noteholders to make payments to the Indenture Trustee and, in the event that the
Indenture Trustee shall consent to the making of payments directly to the Noteholders, to pay to the Indenture Trustee such amounts as shall be sufficient to cover reasonable compensation to the Indenture Trustee and each predecessor Indenture
Trustee, and their respective agents and attorneys, and all other amounts due and owing to the Indenture Trustee pursuant to Section 6.7. 


(e)    Nothing herein contained shall be deemed to authorize the Indenture Trustee to authorize or consent to or vote for
or accept or adopt on behalf of any Noteholder any plan of reorganization, arrangement, adjustment or composition affecting the Notes or the rights of any Holder thereof or to authorize the Indenture Trustee to vote in respect of the claim of any
Noteholder in any such proceeding except, as aforesaid, to vote for the election of a trustee in bankruptcy or similar Person. 

(f)    All rights of action and of asserting claims under this Indenture, or under any of the Notes, may be enforced by
the Indenture Trustee without the possession of any of the Notes or the production thereof in any trial or other Proceedings relative thereto, and any such action or Proceedings instituted by the Indenture Trustee shall be brought in its own name as
trustee of an express trust, and any recovery of judgment, subject to the payment of the expenses, disbursements and compensation of the Indenture Trustee, each predecessor Indenture Trustee and their respective agents and attorneys, shall be for
the ratable benefit of the Holders of the Notes. 
 (g)    In any Proceedings brought by the Indenture Trustee (and also
any Proceedings involving the interpretation of any provision of this Indenture to which the Indenture Trustee shall be a party), the Indenture Trustee shall be held to represent all the Noteholders, and it shall not be necessary to make any
Noteholder a party to any such Proceedings. 

  
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 Section 5.4    Remedies; Priorities. 

(a)    If the Notes have been declared immediately due and payable following an Event of Default, the Indenture Trustee
may, or at the written direction of the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class shall, take one or more of the following actions as so directed (subject to Section 5.5): 

 

	 	(i)	institute Proceedings in its own name and as trustee of an express trust for the collection of all amounts then payable on the Notes or under this Indenture with respect thereto, whether by declaration or otherwise,
enforce any judgment obtained, and collect from the Issuer and any other obligor upon the Notes monies adjudged due; 

  

	 	(ii)	institute Proceedings from time to time for the complete or partial foreclosure of this Indenture with respect to the Trust Estate; 

  


	 	(iii)	exercise any remedies of a secured party under the Relevant UCC and take any other appropriate action to protect and enforce the rights and remedies of the Indenture Trustee and the Noteholders; and 


 

	 	(iv)	sell the Trust Estate or any portion thereof or rights or interest therein at one or more public or private sales called and conducted in any manner permitted by law; provided, however, that the Indenture
Trustee may not sell or otherwise liquidate the Trust Estate at the direction of the Holders following an Event of Default, other than an Event of Default described in Section 5.1(i) or (ii), unless (A) the Holders of 100% of the Note
Balance consent thereto, (B) the proceeds of such sale or liquidation will be sufficient to pay in full the Note Balance and all accrued but unpaid interest on the Outstanding Notes or (C) the Indenture Trustee determines that the Trust
Estate will not continue to provide sufficient funds for the payment of principal of and interest on the Notes as they would have become due if the Notes had not been declared immediately due and payable, and the Indenture Trustee obtains the
consent of the Holders of Notes evidencing not less than 66 2/3% of the Note Balance of the Controlling Class. In determining such sufficiency or insufficiency with respect to clauses (B) and (C) above, the Indenture Trustee may, but need not,
obtain and rely upon an opinion of an Independent investment banking or accounting firm of national reputation as to the feasibility of such proposed action and as to the sufficiency of the Trust Estate for such purpose. 


(b)    Notwithstanding the provisions of Section 2.8 or Section 8.2, if the Indenture Trustee collects any money
or property pursuant to this Section 5.4 and the Notes have been accelerated, it (or, if the Indenture Trustee is not the Paying Agent, the Paying Agent) shall 

  
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pay out such money or property (and other amounts, including all amounts held on deposit in the Reserve Account, except that amounts withdrawn from the Reserve Account will not be distributed to
the Certificateholders, used to reimburse Unreimbursed Servicer Advance or be paid to CarMax or any of its Affiliates in respect of the Total Servicing Fee owing to the Servicer to the extent that CarMax or any of its affiliates is the Servicer) in
the following order of priority: 
  

	 	(i)	first, to the Servicer, the Total Servicing Fee for the preceding Collection Period and any Unreimbursed Servicer Advances for the preceding Collection Period; 


 

	 	(ii)	second, on a pro rata basis: (A) if the Indenture Trustee has become the Servicer pursuant to Section 8.2 of the Sale and Servicing Agreement, any amounts due in connection with indemnification of the
Indenture Trustee as Successor Servicer and not paid pursuant to Section 7.2 of the Sale and Servicing Agreement plus any Transition Costs due in connection with such transfer of servicing and not paid pursuant to Section 8.2(b) of the
Sale and Servicing Agreement; (B) to the Indenture Trustee, all amounts due to the Indenture Trustee pursuant to Section 6.7 not previously paid by the Administrator, and to the Owner Trustee, all amounts due to the Owner Trustee pursuant
to Sections 8.1 and 8.2 of the Trust Agreement not previously paid by the Servicer; and (C) to the Asset Representations Reviewer, all amounts due to the Asset Representations Reviewer pursuant to the Asset Representations Review Agreement not
previously paid by the Servicer; 

  

	 	(iii)	third, on a pro rata basis, to the Class A Noteholders, the Total Note Interest for each Class of the Class A Notes; 

  


	 	(iv)	fourth, if an Event of Default described in Section 5.1 (i), (ii), (v) or (vi) has occurred, in the following order of priority: 


 

	 	(A)	to the Class A-1 Noteholders until the principal amount of the Class A-1 Notes has been paid in full; 


 

	 	(B)	to the Holders of each Class of the remaining Class A Notes, pro rata based on the outstanding principal amount of such Class of Class A Notes as of such Distribution Date, until the
principal amount of each such Class of the remaining Class A Notes has been paid in full; 

  

	 	(C)	to the Class B Noteholders, the Total Note Interest for the Class B Notes; 

  

	 	(D)	to the Class B Noteholders, until the principal amount of the Class B Notes has been paid in full; 


  
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	 	(E)	to the Class C Noteholders, the Total Note Interest for the Class C Notes; 

  

	 	(F)	to the Class C Noteholders, until the principal amount of the Class C Notes has been paid in full; 

  

	 	(G)	to the Class D Noteholders, the Total Note Interest for the Class D Notes; 

  

	 	(H)	to the Class D Noteholders, until the principal amount of the Class D Notes has been paid in full; 

  

	 	(v)	fifth, if an Event of Default described in Section 5.1 (iii) or (iv) has occurred, in the following order of priority: 

  

	 	(A)	to the Class B Noteholders, the Total Note Interest for the Class B Notes; 

  

	 	(B)	to the Class C Noteholders, the Total Note Interest for the Class C Notes; 

  

	 	(C)	to the Class D Noteholders, the Total Note Interest for the Class D Notes; 

  

	 	(D)	to the Class A-1 Noteholders until the principal amount of the Class A-1 Notes has been paid in full; 


 

	 	(E)	to the Holders of each Class of the remaining Class A Notes, pro rata based on the outstanding principal amount of such Class of Class A Notes as of such Distribution Date, until the
principal amount of each such Class of the remaining Class A Notes has been paid in full; 

  

	 	(F)	to the Class B Noteholders, until the principal amount of the Class B Notes has been paid in full; 

  

	 	(G)	to the Class C Noteholders, until the principal amount of the Class C Notes has been paid in full; 

  

	 	(H)	to the Class D Noteholders, until the principal amount of the Class D Notes has been paid in full; 

  

	 	(vi)	sixth, if the Indenture Trustee or any other Successor Servicer has become the Servicer pursuant to Section 8.2 of the Sale and Servicing Agreement, to such Successor Servicer, any Additional Servicing Fee, if any,
for the preceding Collection Period and any unpaid Additional Servicing Fees from prior Collection Periods; and 


  
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	 	(vii)	seventh, to the Certificateholders, any remaining amounts. 

 (c)    Prior
to an acceleration of the Notes following an Event of Default, if the Indenture Trustee collects any money or property pursuant to this Article V, such amounts shall be deposited in the Collection Account and distributed in accordance with
Section 2.8 and Section 8.2. 
 (d)    The Indenture Trustee may fix a record date and payment date for any
payment to Noteholders pursuant to this Section 5.4. At least five (5) days before such record date, the Indenture Trustee on behalf of the Issuer shall mail to each Noteholder a notice that states the record date, the payment date and the
amount to be paid. 
 Section 5.5    Optional Preservation of the Receivables. If the Notes have been
declared immediately due and payable following an Event of Default, and such declaration and its consequences have not been rescinded and annulled, the Indenture Trustee may, but need not, elect to maintain possession of the Trust Estate and apply
proceeds as if there had been no declaration of acceleration; provided, however, that the Available Funds shall be applied in accordance with such declaration of acceleration in the manner specified in Section 5.4(b) as provided in
Section 4.6(d) of the Sale and Servicing Agreement. It is the desire of the parties hereto and the Noteholders that there be at all times sufficient funds for the payment of principal of and interest on the Notes, and the Indenture Trustee
shall take such desire into account when determining whether or not to maintain possession of the Trust Estate. In determining whether to maintain possession of the Trust Estate, the Indenture Trustee may, but need not, obtain and rely upon an
opinion of an Independent investment banking or accounting firm of national reputation as to the feasibility of such proposed action and as to the sufficiency of the Trust Estate for such purpose. 

Section 5.6    Limitation of Suits. 

(a)    No Holder of any Note shall have any right to institute any Proceeding with respect to this Indenture or for the
appointment of a receiver or trustee, or for any other remedy hereunder, except in accordance with Section 2.4(d) of the Sale and Servicing Agreement, unless: 
  

	 	(i)	such Holder has previously given written notice to the Indenture Trustee of a continuing Event of Default; 

  

	 	(ii)	the Holders of Notes evidencing not less than 25% of the Note Balance of the Controlling Class have made written request to the Indenture Trustee to institute such Proceeding in respect of such Event of Default in
its own name as Indenture Trustee hereunder; 

  

	 	(iii)	such Holder or Holders have offered to the Indenture Trustee reasonable indemnity against the costs, expenses and liabilities to be incurred in complying with such request; 


  
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	 	(iv)	the Indenture Trustee for sixty (60) days after its receipt of such notice, request and offer of indemnity has failed to institute such Proceedings; and 


 

	 	(v)	no direction inconsistent with such written request has been given to the Indenture Trustee during such 60-day period by the Holders of Notes evidencing not less than 51% of the
Note Balance of the Controlling Class. 

 (b)    It is understood and intended that no one or more Holders
of Notes shall have any right in any manner whatever by virtue of, or by availing of, any provision of this Indenture to affect, disturb or prejudice the rights of any other Holders of Notes or to obtain or to seek to obtain priority or preference
over any other Holders of Notes or to enforce any right under this Indenture, except in the manner herein provided. 

(c)    In the event the Indenture Trustee shall receive conflicting or inconsistent requests and indemnity from two or
more groups of Holders of Notes, each evidencing less than 51% of the Note Balance of the Controlling Class, the Indenture Trustee will take action in accordance with the direction of the greatest amount of Holders of Notes (measured by principal
balance). 
 Section 5.7    Unconditional Rights of Noteholders to Receive Principal and Interest.
Notwithstanding any other provisions of this Indenture, the Holder of any Note shall have the right, which is absolute and unconditional, to receive payment of the principal of and interest, if any, on such Note on the respective due dates thereof
expressed in such Note or in this Indenture (or, in the case of redemption, on the Redemption Date) and to institute suit for the enforcement of any such payment, and such right shall not be impaired without the consent of such Holder. 

Section 5.8    Restoration of Rights and Remedies. If the Indenture Trustee or any Noteholder has instituted
any Proceeding to enforce any right or remedy under this Indenture and such Proceeding has been discontinued or abandoned for any reason or has been determined adversely to the Indenture Trustee or such Noteholder, then and in every such case the
Issuer, the Indenture Trustee and the Noteholders shall, subject to any determination in such Proceeding, be restored severally and respectively to their former positions hereunder, and thereafter all rights and remedies of the Indenture Trustee and
the Noteholders shall continue as though no such Proceeding had been instituted. 
 Section 5.9    Rights and
Remedies Cumulative. No right or remedy herein conferred upon or reserved to the Indenture Trustee or the Noteholders is intended to be exclusive of any other right or remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent
assertion or employment of any other appropriate right or remedy. 
 Section 5.10    Delay or Omission Not a
Waiver. No delay or omission of the Indenture Trustee or any Noteholder to exercise any right or remedy accruing upon any Default or Event of 

  
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Default shall impair any such right or remedy or constitute a waiver of any such Default or Event of Default or any acquiescence therein. Every right and remedy given by this Article V or by law
to the Indenture Trustee or the Noteholders may be exercised from time to time, and as often as may be deemed expedient, by the Indenture Trustee or the Noteholders, as the case may be. 

Section 5.11    Control by Noteholders of the Controlling Class. 

(a)    The Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class shall have the
right to direct the time, method and place of conducting any Proceeding for any remedy available to the Indenture Trustee with respect to the Notes or exercising any trust or power conferred on the Indenture Trustee; provided, however, that: 

 

	 	(i)	such direction shall not be in conflict with any rule of law or with this Indenture; 

  

	 	(ii)	subject to the express terms of Section 5.4, any written direction to the Indenture Trustee to sell or liquidate the Trust Estate shall be by the Holders of Notes evidencing not less than 100% of the Note Balance;


  

	 	(iii)	if the conditions set forth in Section 5.5 have been satisfied and the Indenture Trustee elects to retain the Trust Estate pursuant to such section, then any written direction to the Indenture Trustee by the
Holders of Notes evidencing less than 100% of the Note Balance to sell or liquidate the Trust Estate shall be of no force and effect; and 

  

	 	(iv)	the Indenture Trustee may take any other action deemed proper by the Indenture Trustee that is not inconsistent with such direction. 


(b)    Notwithstanding the rights of Noteholders set forth in this Section 5.11, subject to Section 6.1, the
Indenture Trustee need not take any action that it reasonably believes might involve it in costs, expenses and liabilities for which it will not be adequately indemnified or might materially adversely affect the rights of any Noteholders not
consenting to such action. 
 Section 5.12    Waiver of Past Defaults. Prior to the declaration of the
acceleration of the maturity of the Notes as provided in Section 5.2, the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class, may, on behalf of all Noteholders, waive any past Default or Event of Default
and its consequences except a Default or Event of Default (i) in the payment of principal of or interest on any of the Notes or (ii) in respect of a covenant or provision hereof that cannot be amended, supplemented or modified without the
consent of all the Noteholders. Upon any such waiver, the Issuer, the Indenture Trustee and the Noteholders shall be restored to their former positions and rights hereunder, respectively, but no such waiver shall extend to any subsequent or other
Default or Event of Default or impair any right consequent thereto. Upon any such waiver, such Default or Event of Default shall cease to exist and be deemed to have been cured and not to have occurred, and any Event of Default arising therefrom
shall be deemed to have been cured and not to have occurred, for every purpose of this Indenture, but no such waiver shall extend to any subsequent or other Default or Event of Default or impair any right consequent thereto. 

  
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 Section 5.13    Undertaking for Costs. All parties to this
Indenture agree, and each Holder of any Note by such Holder’s acceptance thereof shall be deemed to have agreed, that any court may in its discretion require, in any suit for the enforcement of any right or remedy under this Indenture, or in
any suit against the Indenture Trustee for any action taken, suffered or omitted by it as Indenture Trustee, the filing by any party litigant in such suit of an undertaking to pay the costs of such suit, and that such court may in its discretion
assess reasonable costs, including reasonable attorney’s fees, against any party litigant in such suit, having due regard to the merits and good faith of the claims or defenses made by such party litigant; provided, however, that the provisions
of this Section 5.13 shall not apply to (i) any suit instituted by the Indenture Trustee, (ii) any suit instituted by any Noteholder or group of Noteholders, in each case holding Notes evidencing in the aggregate more than 10% of the
Note Balance (or, in the case of any suit which is instituted by the Controlling Class, more than 10% of the Note Balance of the Controlling Class) or (iii) any suit instituted by any Noteholder for the enforcement of the payment of principal
of or interest on any Note on or after the respective due dates expressed in such Note and in this Indenture (or, in the case of redemption, on or after the Redemption Date). 

Section 5.14    Waiver of Stay or Extension Laws. The Issuer covenants (to the extent that it may lawfully do
so) that it shall not at any time insist upon, or plead or in any manner whatsoever claim or take the benefit or advantage of, any stay or extension law wherever enacted, now or at any time hereafter in force, that may affect the covenants or the
performance of this Indenture, and the Issuer (to the extent that it may lawfully do so) hereby expressly waives all benefit or advantage of any such law, and covenants that it shall not hinder, delay or impede the execution of any power herein
granted to the Indenture Trustee, but will suffer and permit the execution of every such power as though no such law had been enacted. 

Section 5.15    Action on Notes. The Indenture Trustee’s right to seek and recover judgment on the Notes
or under this Indenture shall not be affected by the seeking, obtaining or application of any other relief under or with respect to this Indenture. Neither the lien of this Indenture nor any rights or remedies of the Indenture Trustee or the
Noteholders shall be impaired by the recovery of any judgment by the Indenture Trustee against the Issuer or by the levy of any execution under such judgment upon any portion of the Trust Estate or upon any of the assets of the Issuer. Any money or
property collected by the Indenture Trustee shall be applied in accordance with Section 5.4(b). 

  
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 Section 5.16    Performance and Enforcement of Certain
Obligations. 
 (a)    Promptly following a request from the Indenture Trustee to do so, and at the
Administrator’s expense (or, if the Indenture Trustee is then acting as the Administrator, at the expense of CarMax), the Issuer shall take all such lawful action as the Indenture Trustee may request to compel or secure the performance and
observance by the Depositor and the Servicer of their respective obligations to the Issuer under or in connection with the Sale and Servicing Agreement or by the Seller of its obligations under or in connection with the Receivables Purchase
Agreement, and to exercise any and all rights, remedies, powers and privileges lawfully available to the Issuer under or in connection with the Sale and Servicing Agreement to the extent and in the manner directed by the Indenture Trustee, including
the transmission of notices of default on the part of the Depositor or the Servicer thereunder and the institution of legal or administrative actions or proceedings to compel or secure performance by the Depositor and the Servicer of their
respective obligations thereunder. 
 (b)    If an Event of Default shall have occurred and be continuing, the Indenture
Trustee may, and at the direction (which direction shall be in writing or by telephone (confirmed in writing promptly thereafter)) of the Holders of Notes evidencing not less than 66 2/3% of the Note Balance of the Controlling Class shall
(subject to Section 6.2(f)), exercise all rights, remedies, powers, privileges and claims of the Issuer against the Depositor or the Servicer under or in connection with the Sale and Servicing Agreement or against the Seller under or in
connection with the Receivables Purchase Agreement, including the right or power to take any action to compel or secure performance or observance by the Depositor or the Servicer, as the case may be, of its obligations to the Issuer thereunder and
to give any consent, request, notice, direction, approval, extension or waiver under the Sale and Servicing Agreement or the Receivables Purchase Agreement, as the case may be, and any right of the Issuer to take such action shall be suspended. 

(c)    Promptly following a request from the Indenture Trustee to do so and at the Administrator’s expense, the
Issuer agrees to take all such lawful action as the Indenture Trustee may request to compel or secure the performance and observance by the Seller of its obligations to the Depositor under or in connection with the Receivables Purchase Agreement in
accordance with the terms thereof, and to exercise any and all rights, remedies, powers and privileges lawfully available to the Issuer under or in connection with the Receivables Purchase Agreement to the extent and in the manner directed by the
Indenture Trustee, including the transmission of notices of default on the part of the Depositor thereunder and the institution of legal or administrative actions or proceedings to compel or secure performance by the Seller of its obligations under
the Receivables Purchase Agreement. 
 (d)    If an Event of Default shall have occurred and be continuing, the
Indenture Trustee may, and at the direction (which direction shall be in writing or by telephone (confirmed in writing promptly thereafter)) of the Holders of Notes evidencing not less than 66 2/3% of the Note Balance of the Controlling
Class shall (subject to Section 6.2(f)), exercise all rights, remedies, powers, privileges and claims of the Depositor against the Seller under or in connection with the Receivables Purchase Agreement, including the right or power to take
any action to compel or secure performance or observance by the Seller of its obligations to the Depositor thereunder and to give any consent, request, notice, direction, approval, extension or waiver under the Receivables Purchase Agreement, and
any right of the Depositor to take such action shall be suspended. 

  
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 ARTICLE VI 

THE INDENTURE TRUSTEE 

Section 6.1    Duties of Indenture Trustee. 

(a)    If an Event of Default shall have occurred and be continuing, the Indenture Trustee shall exercise the rights and
powers vested in it by this Indenture and use the same degree of care and skill in their exercise as a prudent person would exercise or use under the circumstances in the conduct of such Person’s own affairs. 

(b)    Except during the continuance of an Event of Default: 

 

	 	(i)	the Indenture Trustee undertakes to perform such duties and only such duties as are specifically set forth in this Indenture and no implied covenants or obligations shall be read into this Indenture against the
Indenture Trustee, and any discretion, permissive right or privilege shall not be deemed to be or otherwise construed as a duty or obligation; and 

  

	 	(ii)	in the absence of bad faith on its part, the Indenture Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon certificates or opinions furnished to
the Indenture Trustee and, if required by the terms of this Indenture, conforming to the requirements of this Indenture; provided, however, that the Indenture Trustee shall examine the certificates and opinions to determine whether or
not they conform on their face to the requirements of this Indenture. 

 (c)    The Indenture Trustee may
not be relieved from liability for its own negligent action, its own negligent failure to act or its own willful misconduct, except that: 
  

	 	(i)	this paragraph does not limit the effect of paragraph (b) of this Section 6.1; 

  

	 	(ii)	the Indenture Trustee shall not be liable for any error of judgment made in good faith by a Responsible Officer unless it is proved that the Indenture Trustee was negligent in ascertaining the pertinent facts;


  

	 	(iii)	the Indenture Trustee shall not be liable with respect to any action it takes or omits to take in good faith in accordance with a direction received by it pursuant to Section 5.11; and 


  
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	 	(iv)	the Indenture Trustee shall not be liable for special, punitive, consequential, or indirect damages (including, among other things, lost profits). 


(d)    The Indenture Trustee shall not be liable for interest on any money received by it except as the Indenture Trustee
may agree in writing with the Issuer. 
 (e)    Money held in trust by the Indenture Trustee need not be segregated from
other funds except to the extent required by law or the terms of this Indenture or the Sale and Servicing Agreement. 

(f)    No provision of this Indenture shall require the Indenture Trustee to expend or risk its own funds or otherwise
incur financial liability in the performance of any of its duties hereunder or in the exercise of any of its rights or powers hereunder if the Indenture Trustee shall have reasonable grounds to believe that repayment of such funds or indemnity
satisfactory to it against such risk or liability is not assured or provided to it. 
 (g)    Every provision of this
Indenture relating to the conduct or affecting the liability of or affording protection to the Indenture Trustee shall be subject to the provisions of this Section 6.1 and the TIA. 

(h)    The Indenture Trustee shall not be charged with knowledge of any Event of Default, breach of a representation or
warranty of any other party to the Transaction Documents or of any other event unless either (i) a Responsible Officer shall have actual knowledge of such Event of Default, breach of a representation or warranty or other event or
(ii) written notice of such Event of Default, breach of a representation or warranty or other event shall have been given to the Indenture Trustee in accordance with the provisions of this Indenture; provided, however, that for the avoidance of
doubt, the Indenture Trustee shall not be deemed to have knowledge of a breach of representation or warranty solely as a result of the receipt and possession by the Indenture Trustee of the Review Report (as defined in the Asset Representations
Review Agreement). Except as expressly provided in this Indenture, the Indenture Trustee shall have no duty to take any action to determine whether any Event of Default or other event has occurred. 

(i)    The Indenture Trustee shall be required to carry out its duties as specified in Sections 4.1, 4.7, 4.9, 7.4(c),
8.1, 8.2, 8.3(a), 8.4, 10.12 and 10.14 of the Sale and Servicing Agreement. In furtherance of the foregoing, Sections 4.1, 4.7, 4.9, 7.4(c), 8.1, 8.2, 8.3(a), 8.4, 10.12 and 10.14 of the Sale and Servicing Agreement are hereby incorporated by
reference into this Indenture to the extent that they refer to obligations of the Indenture Trustee. 
 (j)    Subject
to Sections 6.1(a) and (c), in no event shall the Indenture Trustee be responsible or liable for any failure or delay in the performance of its obligations hereunder arising out of or caused by, directly or indirectly, forces beyond its control,
including, without limitation, strikes, work stoppages, acts of war or terrorism, civil or military disturbances, nuclear or natural catastrophes or acts of God, and interruptions, loss or malfunctions of utilities; it being understood that the
Indenture Trustee shall use reasonable efforts which are consistent with accepted practices in the banking industry to resume performance as soon as practicable under the circumstances. 

  
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 (k)     The Indenture Trustee shall have the right to decline to follow any
investor direction if the Indenture Trustee determines that the action or proceeding as directed may not lawfully be taken or if the Indenture Trustee in good faith determines that the action or proceeding so directed would involve it in personal
liability or be unjustly prejudicial to the non-directing holders. 
 (l)    The
Indenture Trustee shall not have any obligation to investigate any matter or to exercise any powers vested by the Indenture Trustee unless requested by 25% or more of the Holders, and such Holders have assured to the Indenture Trustee indemnity
satisfactory to it. 
 Section 6.2    Rights of Indenture Trustee. 

(a)    The Indenture Trustee may conclusively rely on any document believed by it to be genuine and to have been signed or
presented by the proper Person. 
 (b)    Before the Indenture Trustee acts or refrains from acting, it may request and
shall be entitled to receive an Issuer’s Certificate or an Opinion of Counsel. The Indenture Trustee shall not be liable for any action it takes or omits to take in good faith in reliance on an Issuer’s Certificate or Opinion of Counsel.

 (c)    The Indenture Trustee in any of its capacities may execute any of the trusts or powers hereunder or perform
any duties hereunder either directly or by or through agents or attorneys or a custodian or nominee, and the Indenture Trustee shall not be responsible for any misconduct or negligence on the part of, or for the supervision of, any such agent,
attorney, custodian or nominee appointed with due care by it hereunder. 
 (d)    The Indenture Trustee shall not be
liable for any action it takes or omits to take in good faith which it believes to be authorized or within its rights or powers; provided, however, that such action or omission by the Indenture Trustee does not constitute willful
misconduct, negligence or bad faith. 
 (e)    The Indenture Trustee may consult with counsel, and the advice or opinion
of counsel with respect to legal matters relating to this Indenture and the Notes shall be full and complete authorization and protection from liability in respect to any action taken, omitted or suffered by it hereunder in good faith and in
accordance with the advice or opinion of such counsel. 
 (f)    The Indenture Trustee shall be under no obligation to
exercise any of the rights or powers vested in it by this Indenture at the request or direction of the Noteholders pursuant to this Indenture, unless such Noteholders shall have offered to the Indenture Trustee security or indemnity satisfactory to
it against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction. 

  
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 (g)    The Indenture Trustee shall not be bound to make any investigation
into the facts or matters stated in any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture or other paper or document, but the Indenture Trustee, in its discretion, may make
such further inquiry or investigation into such facts or matters as it may see fit, and, if the Indenture Trustee shall determine to make such further inquiry or investigation, it shall be entitled to examine the books, records and premises of the
Issuer, personally or by agent or attorney. In no event shall the Indenture Trustee have any responsibility to monitor CarMax’s compliance with or be charged with knowledge of the risk retention rules of 17 CFR Part 246, nor shall it be liable
to any investor, Holder, or any party whatsoever for violation of such rules or requirements or such similar provisions now or hereafter in effect. 

(h)    Any permissive right or privilege of the Indenture Trustee hereunder shall not be deemed to be or otherwise
construed as a duty or obligation. 
 (i)    The Indenture Trustee shall not be liable for the failure to perform its
duties hereunder if such failure is a direct or proximate result of another party failing to perform its duties. 

Section 6.3    Individual Rights of Indenture Trustee. The Indenture Trustee, in its individual or any other
capacity, may become the owner or pledgee of Notes and may otherwise deal with the Issuer or its Affiliates with the same rights it would have if it were not Indenture Trustee. Any Paying Agent, Note Registrar,
co-registrar or co-paying agent hereunder may do the same with like rights. 

Section 6.4    Indenture Trustee’s Disclaimer. The Indenture Trustee (i) shall not be responsible
for, and makes no representation as to, the validity or adequacy of this Indenture or the Notes, (ii) shall not be accountable for the Issuer’s use of the proceeds from the Notes or responsible for any statement of the Issuer in this
Indenture or in any document issued in connection with the sale of the Notes or in the Notes other than the Indenture Trustee’s certificate of authentication and (iii) shall not be responsible for the acts or omissions of any other party,
including the Servicer, Seller and Depositor, and may assume each other party’s performance of its obligations under the Trust Agreement, the Receivables Purchase Agreement and the Sale and Servicing Agreement absent written notice or actual
knowledge of a Responsible Officer to the contrary. 
 Section 6.5    Notice of Defaults. If an Event of
Default occurs and is continuing and if it is known to a Responsible Officer of the Indenture Trustee, the Indenture Trustee shall mail to each Noteholder and the Administrator notice of such Event of Default within ninety (90) days after it
occurs. Except in the case of an Event of Default described in Section 5.1(a)(i) or (ii) (including payments pursuant to the mandatory redemption provisions of such Note), the Indenture Trustee may withhold the notice if and so long as a
committee of its Responsible Officers in good faith determines that withholding the notice is in the interests of Noteholders. 

Section 6.6    Reports by Indenture Trustee to Holders. The Indenture Trustee shall make available, within a
reasonable period of time after the end of each calendar year, to each Person who at any time during such calendar year was a Noteholder, such information furnished to the Indenture Trustee as may be required to enable such Person to prepare its
federal and State income tax returns. 

  
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 Section 6.7    Compensation and Indemnity. 

(a)    The Administrator, on behalf of the Issuer, shall pay to the Indenture Trustee from time to time reasonable
compensation for its services. The Indenture Trustee’s compensation shall not be limited by any law on compensation of a trustee of an express trust. The Administrator, on behalf of the Issuer, shall reimburse the Indenture Trustee for all
expenses, advances and disbursements reasonably incurred or made by it, including costs of collection, in addition to the compensation for its services; provided, however, that the Administrator need not reimburse the Indenture Trustee for any
expense incurred through the Indenture Trustee’s willful misconduct, negligence, or bad faith. Such expenses shall include the reasonable compensation and expenses, disbursements and advances of the Indenture Trustee’s agents, counsel,
accountants and experts. The Administrator, on behalf of the Issuer, shall indemnify the Indenture Trustee for, and hold it and its officers, directors, employees, representatives and agents, harmless against, any and all loss, liability or expense
(including reasonable attorneys’ fees and expenses and court costs, and any loss or expense incurred in connection with a successful defense, in whole or in part, of any claim that the Indenture Trustee breached its standard of care) incurred
by it in connection with the administration of this trust and the performance of its duties hereunder; provided, however, that the Administrator need not indemnify the Indenture Trustee for, or hold it harmless against, any such loss, liability or
expense incurred through the Indenture Trustee’s willful misconduct, negligence, or bad faith. The Indenture Trustee shall notify the Issuer and the Administrator promptly of any claim for which it may seek indemnity. Any failure by the
Indenture Trustee to so notify the Issuer and the Administrator shall not, however, relieve the Administrator of its obligations hereunder. The Administrator, on behalf of the Issuer, shall defend any such claim. The Indenture Trustee may have
separate counsel in connection with the defense of any such claim, and the Administrator, on behalf of the Issuer, shall pay the fees and expenses of such counsel. If the Indenture Trustee is then acting as Administrator, all payment obligations to
the Indenture Trustee pursuant to this Section 6.7 shall be paid by CarMax. 
 (b)    The payment obligations to
the Indenture Trustee pursuant to this Section 6.7 shall survive the resignation or removal of the Indenture Trustee and the discharge of this Indenture. 

(c)    When the Indenture Trustee incurs fees or expenses after the occurrence of a Default specified in
Section 5.1(a)(v) or Section 5.1(a)(vi) with respect to the Issuer, such fees and expenses are intended to constitute expenses of administration under Title 11 of the United States Code or any other applicable federal or State bankruptcy,
insolvency or similar law. 
 Section 6.8    Replacement of Indenture Trustee. 

(a)    No resignation or removal of the Indenture Trustee, and no appointment of a successor Indenture Trustee, shall
become effective until the acceptance of appointment by the successor Indenture Trustee pursuant to this Section 6.8. The Indenture Trustee may resign at any time by providing the Issuer, the Administrator, the Depositor and the Noteholders
with at 

  
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least 60 days’ advance written notice. The Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class may remove the Indenture Trustee without cause by
notifying the Indenture Trustee (with a copy to the Issuer, the Administrator, the Depositor and the Rating Agencies) of such removal and, following such removal, may appoint a successor Indenture Trustee. The Issuer shall remove the Indenture
Trustee if: 
  

	 	(i)	the Indenture Trustee fails to comply with Section 6.11; 

  

	 	(ii)	the Indenture Trustee is adjudged to be bankrupt or insolvent; 

  

	 	(iii)	a receiver or other public officer takes charge of the Indenture Trustee or its property; or 

  

	 	(iv)	the Indenture Trustee otherwise becomes incapable of acting. 

 (b)    If
the Indenture Trustee resigns or is removed or if a vacancy exists in the office of Indenture Trustee for any reason (the Indenture Trustee in such event being referred to herein as the retiring Indenture Trustee), the Administrator shall promptly
appoint a successor Indenture Trustee. 
 (c)    Any successor Indenture Trustee shall deliver a written acceptance of
its appointment to the retiring Indenture Trustee, the Issuer, the Administrator and the Depositor. Upon delivery of such written acceptance, the resignation or removal of the retiring Indenture Trustee shall become effective and the successor
Indenture Trustee shall have all the rights, powers and duties of the Indenture Trustee under this Indenture. The successor Indenture Trustee shall mail a notice of its succession to the Noteholders. The retiring Indenture Trustee shall promptly
transfer all property held by it as Indenture Trustee to the successor Indenture Trustee. 
 (d)    If a successor
Indenture Trustee does not take office within sixty (60) days after the retiring Indenture Trustee resigns or is removed, the retiring Indenture Trustee, the Issuer or the Holders of Notes evidencing not less than 51% of the Note Balance of the
Controlling Class may petition any court of competent jurisdiction for the appointment of a successor Indenture Trustee. If the Indenture Trustee fails to comply with Section 6.11, any Noteholder may petition any court of competent
jurisdiction for the removal of the Indenture Trustee and the appointment of a successor Indenture Trustee. 

(e)    Notwithstanding the replacement of the Indenture Trustee pursuant to this Section 6.8, the
Administrator’s obligations under Section 6.7 shall continue for the benefit of the retiring Indenture Trustee. 

Section 6.9    Successor Indenture Trustee by Merger. 

(a)    If the Indenture Trustee consolidates with, merges or converts into, or transfers all or substantially all its
corporate trust business or assets to another corporation or banking association, the resulting, surviving or transferee corporation or banking association without any further act shall be the successor Indenture Trustee; provided,
however, that such corporation or banking association must be otherwise qualified and eligible under Section 6.11. The Indenture Trustee shall provide the Rating Agencies, the Administrator and the Depositor with prior written notice of
any such transaction. 

  
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 (b)    If at the time such successor or successors by consolidation, merger
or conversion to the Indenture Trustee shall succeed to the trusts created by this Indenture any of the Notes shall have been authenticated but not delivered, any such successor to the Indenture Trustee may adopt the certificate of authentication of
any predecessor trustee and deliver such Notes so authenticated, and in case at that time any of the Notes shall not have been authenticated, any such successor to the Indenture Trustee may authenticate such Notes either in the name of any
predecessor trustee or in the name of the successor to the Indenture Trustee. In all such cases such certificates shall have the full force which the Notes or this Indenture provide that the certificate of the Indenture Trustee shall have. 

Section 6.10    Appointment of Co-Indenture Trustee or Separate Indenture
Trustee. 
 (a)    Notwithstanding any other provisions of this Indenture, at any time, for the purpose of meeting
any legal requirement of any jurisdiction in which any part of the Trust Estate may at the time be located, the Indenture Trustee shall have the power and may execute and deliver an instrument to appoint one or more Persons to act as a co-trustee or co-trustees, jointly with the Indenture Trustee, or separate trustee or separate trustees, of all or any part of the Trust Estate, and to vest in such Person or
Persons, in such capacity and for the benefit of the Noteholders, such title to the Trust Estate, or any part hereof, and, subject to the other provisions of this Section 6.10, such powers, duties, obligations, rights and trusts as the
Indenture Trustee may consider necessary or desirable. No co-trustee or separate trustee under this Indenture shall be required to meet the terms of eligibility as a successor trustee under Section 6.11
and no notice of the appointment of any co-trustee or separate trustee shall be required under Section 6.8. 

(b)    Each separate trustee and co-trustee shall, to the extent permitted by law,
be appointed and act subject to the following provisions and conditions: 
  

	 	(i)	all rights, powers, duties and obligations conferred or imposed upon the Indenture Trustee shall be conferred or imposed upon and exercised or performed by the Indenture Trustee and such separate trustee or co-trustee jointly (it being understood that such separate trustee or co-trustee shall not be authorized to act separately without the Indenture Trustee joining in such act),
except to the extent that under any law of any jurisdiction in which any particular act or acts are to be performed the Indenture Trustee shall be incompetent or unqualified to perform such act or acts, in which event such rights, powers, duties and
obligations (including the holding of title to the Trust Estate or any portion thereof in any such jurisdiction) shall be exercised and performed singly by such separate trustee or co-trustee, but solely at
the direction of the Indenture Trustee; 


  
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	 	(ii)	no trustee under this Indenture shall be personally liable by reason of any act or omission of any other trustee under this Indenture; and 


 

	 	(iii)	the Indenture Trustee may at any time accept the resignation of or remove any separate trustee or co-trustee. 


(c)    Any notice, request or other writing given to the Indenture Trustee shall be deemed to have been given to each of
the then separate trustees and co-trustees as effectively as if given to each of them. Every instrument appointing any separate trustee or co-trustee shall refer to this
Indenture and the conditions of this Article VI. Each separate trustee and co-trustee, upon its acceptance of the trusts conferred, shall be vested with the estates or property specified in its instrument of
appointment, either jointly with the Indenture Trustee or separately, as may be provided therein, subject to all the provisions of this Indenture, specifically including every provision of this Indenture relating to the conduct of, affecting the
liability of, or affording protection to, the Indenture Trustee. Each such instrument shall be filed with the Indenture Trustee. 

(d)    Any separate trustee or co-trustee may at any time constitute the Indenture
Trustee its agent or attorney-in-fact with full power and authority, to the extent permitted by law, to do any lawful act under or in respect of this Indenture on its
behalf and in its name. If any separate trustee or co-trustee shall die, become incapable of acting, resign or be removed, all of its estates, properties, rights, remedies and trusts shall vest in and be
exercised by the Indenture Trustee, to the extent permitted by law, without the appointment of a new or successor trustee. 

Section 6.11    Eligibility; Disqualification. 

(a)    The Indenture Trustee shall at all times satisfy the requirements of TIA Section 310(a). The Indenture Trustee
or its parent shall have a combined capital and surplus of at least $50,000,000 as set forth in its most recent published annual report of condition and shall have a long-term debt rating acceptable to each of the Rating Agencies. The Indenture
Trustee shall comply with TIA Section 310(b). 
 (b)    The Indenture Trustee shall comply with TIA
Section 310(b), including the optional provision permitted by the second sentence of TIA Section 310(b)(9); provided, however, that there shall be excluded from the operation of TIA Section 310(b)(1) any indenture or indentures under
which other securities of the Issuer are outstanding if the requirements for such exclusion set forth in TIA Section 310(b)(1) are met. 

(c)    In the case of the appointment pursuant to this Section 6.11 of a successor Indenture Trustee with respect to
any Class of Notes, the Issuer, the retiring Indenture Trustee and the successor Indenture Trustee with respect to such Class of Notes shall execute and deliver an indenture supplemental hereto wherein each successor Indenture Trustee
shall accept such appointment and which (i) shall contain such provisions as shall be necessary or desirable to transfer and confirm to, and to vest in, the successor Indenture Trustee all the rights, powers, trusts and duties of the retiring
Indenture Trustee with respect to the Notes of the Class to which the appointment of such successor Indenture Trustee relates, (ii) if the retiring Indenture Trustee 

  
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is not retiring with respect to all Classes of Notes, shall contain such provisions as shall be deemed necessary or desirable to confirm that all rights, powers, trusts and duties of the retiring
Indenture Trustee with respect to the Notes of each Class as to which the retiring Indenture Trustee is not retiring shall continue to be vested in the Indenture Trustee and (iii) shall add to or change any of the provisions of this
Indenture as shall be necessary to provide for or facilitate the administration of the trusts hereunder by more than one Indenture Trustee, it being understood that nothing herein or in such supplemental indenture shall constitute such Indenture
Trustees co-trustees of the same trust and that each such Indenture Trustee shall be a trustee of a trust or trusts hereunder separate and apart from any trust or trusts hereunder administered by any other such Indenture Trustee; and upon the
removal of the retiring Indenture Trustee shall become effective to the extent provided herein. 

Section 6.12    Preferential Collection of Claims Against Issuer. The Indenture Trustee shall comply with TIA
Section 311(a), excluding any creditor relationship listed in TIA Section 311(b). An Indenture Trustee who has resigned or been removed shall be subject to TIA Section 311(a) to the extent indicated. 

Section 6.13    Communications Regarding Demands to Purchase Receivables. The Indenture Trustee agrees to
cooperate in good faith with any reasonable request by the Depositor for information which is required in order to enable the Depositor to comply with the provisions of Items 1104(e) and 1121(c) of Regulation AB and Rule 15Ga-1 under the Exchange Act as it relates to the Indenture Trustee or to the Indenture Trustee’s obligations under this Indenture. The Indenture Trustee shall provide the Depositor with notification, as soon
as practicable and in any event within five (5) Business Days, of (i) all demands communicated to the Indenture Trustee for the repurchase or replacement of any Receivable and (ii) all requests by Verified Note Owners to communicate
with other Noteholders regarding the exercise of remedies pursuant to the Transaction Documents. 
  

ARTICLE VII 
 NOTEHOLDERS’
LISTS AND REPORTS; ASSET REPRESENTATIONS REVIEW 
 Section 7.1    Issuer To Furnish Indenture Trustee Names and
Addresses of Noteholders. If and so long as the Indenture Trustee is not the Note Registrar, the Issuer shall furnish or cause to be furnished to the Indenture Trustee (i) not more than five (5) days after each Record Date, a list, in
such form as the Indenture Trustee may reasonably require, of the names and addresses of the Holders of Notes as of such Record Date and (ii) at such other times as the Indenture Trustee may request in writing, within thirty (30) days
after receipt by the Issuer of any such request, a list of similar form and content as of a date not more than ten (10) days prior to the time such list is furnished; provided, however, that, with respect to Notes issued as Book-Entry Notes, no
such list shall be required to be furnished. 
 Section 7.2    Preservation of Information; Communications to
Noteholders. 
 (a)    The Indenture Trustee shall preserve, in as current a form as is reasonably practicable, the
names and addresses of the Holders of Notes contained in the most recent list furnished to the Indenture Trustee as provided in Section 7.1 and the names and addresses of the Holders of Notes received by the Indenture Trustee in its capacity as
Note Registrar. The Indenture Trustee may destroy any list furnished to it as provided in Section 7.1 upon receipt of a new list so furnished. 

  
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 (b)    Noteholders may communicate pursuant to TIA Section 312(b) with
other Noteholders with respect to their rights under this Indenture or under the Notes. 
 (c)    The Issuer, the
Indenture Trustee and the Note Registrar shall have the protection of TIA Section 312(c). 

Section 7.3    Reports by Issuer. 

(a)    The Issuer shall: 
  

	 	(i)	file with the Indenture Trustee, within fifteen (15) days after the Issuer is required to file the same with the Commission, copies of the annual reports and of the information, documents and other reports (or
copies of such portions of any of the foregoing as the Commission may from time to time by rules and regulations prescribe) that the Issuer may be required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act;


  

	 	(ii)	file with the Indenture Trustee and the Commission in accordance with the rules and regulations prescribed from time to time by the Commission such additional information, documents and reports with respect to
compliance by the Issuer with the conditions and covenants of this Indenture as may be required from time to time by such rules and regulations; and 

  

	 	(iii)	supply to the Indenture Trustee (and the Indenture Trustee shall transmit by mail to all Noteholders described in TIA Section 313(c)) such summaries of any information, documents and reports required to be filed by
the Issuer pursuant to clauses (i) and (ii) of this Section (a) and by the rules and regulations prescribed from time to time by the Commission. 


(b)    Unless the Issuer otherwise determines, the fiscal year of the Issuer shall correspond to the Trust Fiscal Year.

 Section 7.4    Reports by Indenture Trustee. 

(a)    If required by TIA Section 313(a), within sixty (60) days after each March 31, beginning with
March 31, 2019, the Indenture Trustee shall mail to each Noteholder as required by TIA Section 313(c) a brief report dated as of such date that complies with TIA Section 313(a). The Indenture Trustee shall also comply with TIA
Section 313(b). 
 (b)    The Indenture Trustee shall file with the Commission and each stock exchange, if any, on
which the Notes are listed a copy of each report mailed to Noteholders pursuant to this Indenture. The Issuer shall notify the Indenture Trustee if and when the Notes are listed on any stock exchange. 

  
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 Section 7.5    Noteholder Communications. 

(a)     Noteholder Communications with Indenture Trustee. A Noteholder (if the Notes are represented by Definitive
Notes) or a Note Owner (if the Notes are represented by Book-Entry Notes) may communicate with the Indenture Trustee and give notices and make requests and demands and give directions to the Indenture Trustee through the procedures of the Clearing
Agency and by notice to the Indenture Trustee. In the event that a Verified Note Owner communicates with the Indenture Trustee, the Indenture Trustee shall provide a copy of the supporting evidence provided to the Indenture Trustee to the Issuer.
The Indenture Trustee will not be required to take action in response to requests, demands or directions of a Noteholder or a Verified Note Owner, other than requests, demands or directions relating to obligations of the Indenture Trustee in
connection with an Asset Representations Review Notice explicitly set forth in Section 7.6, unless the Noteholder or Verified Note Owner has offered reasonable security or indemnity reasonably satisfactory to the Indenture Trustee to protect it
against the fees and expenses that it may incur in complying with the request, demand or direction. 

(b)    Communications between Noteholders. A Noteholder (if the Notes are represented by Definitive Notes) or a
Note Owner (if the Notes are represented by Book-Entry Notes) that seeks to communicate with other Noteholders or Note Owners, as applicable, about a possible exercise of rights under this Indenture or the other Transaction Documents may send a
request to the Servicer, on behalf of the Issuer, at CMX_Corp_Fin_Dept@carmax.com to include information regarding the communication in a Form 10-D to be filed by the Issuer with the Commission. Each
request must include (i) the name of the requesting Noteholder or Note Owner, (ii) the method by which other Noteholders or Note Owners, as applicable, may contact the requesting Noteholder or Note Owner and (iii) in the case of a
Note Owner, evidence of and a certification from that Person that it is a Verified Note Owner. A Noteholder or Verified Note Owner, as applicable, that delivers a request under this Section 7.5(b) will be deemed to have certified to the Issuer
and the Servicer that its request to communicate with other Noteholders or Note Owners, as applicable, relates solely to a possible exercise of rights under this Indenture or the other Transaction Documents, and will not be used for other purposes.
The Issuer will promptly deliver any such request to the Servicer. On receipt of such a request, the Servicer will include in the Form 10-D filed by the Issuer with the Commission for the Collection Period in
which the request was received (A) a statement that the Servicer has received a request from a Noteholder or Note Owner, as applicable, that is interested in communicating with other Noteholders or Note Owners, as applicable, about a possible
exercise of rights under this Indenture or the other Transaction Documents, (B) the name of the requesting Noteholder or Note Owner, (C) the date the request was received and (D) a description of the method by which the other
Noteholders or Note Owners, as applicable, may contact the requesting Noteholder or Note Owner. Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and agrees that
such requesting Noteholder or Note Owner will pay any costs associated with communicating with other Noteholders or Note Owners, and none of the Seller, the Servicer, the Depositor, the Issuer, the Administrator, the Indenture Trustee or the Owner
Trustee will be responsible for such costs. 

  
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 Section 7.6    Asset Representations Review. 

(a)    If a Delinquency Trigger Event occurs, a Noteholder (if the Notes are represented by Definitive Notes) or a Verified
Note Owner (if the Notes are represented by Book-Entry Notes) may make a demand on the Indenture Trustee to cause a vote of the Noteholders or Note Owners, as applicable, about whether to direct the Asset Representations Reviewer to conduct an Asset
Representations Review. If Noteholders and Note Owners of 5% or more of the aggregate principal amount of all Notes Outstanding demand a vote within 90 days of the filing of the Form 10-D indicating that the
Delinquency Trigger Event has occurred, the Indenture Trustee will promptly request a vote of the Noteholders and Note Owners as described in Section 7.6(b) below; provided, that for the purpose of determining the holders of the Notes
Outstanding, any Notes held by CarMax or any of its Affiliates shall not be included in such calculation. 
 (b)    Upon
the direction of the requisite Noteholders or Note Owners set forth in Section 7.6(a), the Indenture Trustee shall conduct a vote of all Noteholders, and shall cause the nominee of the Clearing Agency (initially, such nominee to be
Cede & Co.) to conduct a vote of all Note Owners. The Indenture Trustee shall provide to the Servicer the voting instructions and procedures applicable to the Noteholders and Note Owners to be included in the Form 10-D filed by the Issuer with the Commission. Each Noteholder or Note Owner that elects to vote shall vote whether or not the Asset Representations Reviewer should be directed to conduct an Asset Representations
Review. Noteholders or Note Owners shall be permitted to vote for 150 days after the filing of the Form 10-D indicating that the Delinquency Trigger Event has occurred. 

(c)    In the event that a Verified Note Owner exercises its right to vote such Note Owner’s beneficial interest, the
Indenture Trustee shall provide a copy of the supporting evidence provided to the Indenture Trustee to the Issuer. 

(d)    If (i) a majority of the Noteholders and Note Owners voting pursuant to Section 7.6(b) vote to cause the
Asset Representations Reviewer to conduct an Asset Representations Review and (ii) the holders of 5% or more of the aggregate principal amount of Outstanding Notes cast a vote, the Indenture Trustee shall provide a notice to the Issuer (the
“Asset Representations Review Notice”), which shall promptly provide such Asset Representations Review Notice to the Seller, the Depositor and the Servicer. 

(e)    The Indenture Trustee shall cooperate with the Asset Representations Reviewer in the event an Asset Representations
Review is commenced pursuant to Section 7.6(d) and shall provide the Asset Representations Reviewer with any documents or other information in its possession reasonably requested by the Asset Representations Reviewer in connection with the
Asset Representations Review. 
 ARTICLE VIII 

ACCOUNTS, DISBURSEMENTS AND RELEASES 

Section 8.1    Collection of Money. Except as otherwise expressly provided herein, the Indenture Trustee may
demand payment or delivery of, and shall receive and collect, directly and 

  
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without intervention or assistance of any fiscal agent or other intermediary, all money and other property payable to or receivable by the Indenture Trustee pursuant to this Indenture and the
Sale and Servicing Agreement. The Indenture Trustee shall apply all such money received by it as provided in this Indenture and the Sale and Servicing Agreement. Except as otherwise expressly provided in this Indenture, if any default occurs in the
making of any payment or performance under any agreement or instrument that is part of the Trust Estate, the Indenture Trustee may take such action as may be appropriate to enforce such payment or performance, including the institution and
prosecution of appropriate Proceedings. Any such action shall be without prejudice to any right to claim a Default or Event of Default under this Indenture and any right to proceed thereafter as provided in Article V. 

Section 8.2    Trust Accounts. 

(a)    On or before the Closing Date, the Issuer shall cause the Servicer to establish and maintain, in the name of the
Indenture Trustee, for the benefit of the Noteholders and the Certificateholders, the Collection Account as provided in Section 4.1(a) of the Sale and Servicing Agreement. On or before each Distribution Date, the Servicer shall deposit in the
Collection Account all amounts required to be deposited therein with respect to the preceding Collection Period as provided in Section 4.2 of the Sale and Servicing Agreement. 

(b)    On or before the Closing Date, the Issuer shall cause the Servicer to establish and maintain, in the name of the
Indenture Trustee on behalf of the Trust, for the benefit of the Noteholders, the Reserve Account as provided in Section 4.7 of the Sale and Servicing Agreement. On each Distribution Date, upon receipt of instructions from the Servicer pursuant
to Section 4.6(b) of the Sale and Servicing Agreement, the Indenture Trustee shall withdraw from the Reserve Account (up to the amount on deposit in the Reserve Account) and deposit in the Collection Account the amount, if any, by which the
Required Payment Amount for such Distribution Date exceeds the Available Collections for such Distribution Date. 

(c)    [RESERVED]. 

(d)    On each Distribution Date, the Indenture Trustee shall apply or cause to be applied the amount on deposit in the
Collection Account on such Distribution Date in accordance with Section 2.8(a). 
 (e)    On or before the Closing
Date, the Issuer shall cause the Servicer to establish and maintain, in the name of the Indenture Trustee, for the exclusive benefit of the Noteholders, the Note Payment Account as provided in Section 4.1(b) of the Sale and Servicing Agreement.
On each Distribution Date, the Indenture Trustee shall apply or cause to be applied the amount on deposit in the Note Payment Account on such Distribution Date in accordance with Section 2.8(a) or (d), as applicable. 

Section 8.3    General Provisions Regarding Accounts. 

(a)    So long as no Default or Event of Default shall have occurred and be continuing, all or a portion of the funds in
the Trust Accounts shall be invested by the Indenture Trustee at the written direction of the Servicer in Permitted Investments as provided in Sections 4.1 and 4.7 of the Sale and Servicing Agreement; provided, that, funds on deposit in the
Reserve 

  
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Account shall be invested in Permitted Investments meeting the requirements of 17 CFR Part 246.4(b)(2), as determined by the Servicer. All income or other gain (net of losses and investment
expenses) from investments of monies deposited in the Trust Accounts shall be withdrawn by the Indenture Trustee from such accounts and distributed (but only under the circumstances set forth in the Sale and Servicing Agreement) as provided in
Sections 4.1 and 4.7 of the Sale and Servicing Agreement; provided, that amounts released from the Reserve Account shall meet the requirements of 17 CFR Part 246.4(b)(3)(i), as determined by the Servicer. The Servicer shall not direct the
Indenture Trustee to make any investment of any funds or to sell any investment held in any of the Trust Accounts unless the security interest granted and perfected in such account will continue to be perfected in such investment or the proceeds of
such sale, in either case without any further action by any Person, and, in connection with any direction to the Indenture Trustee to make any such investment or sale, if requested by the Indenture Trustee, the Issuer shall deliver to the Indenture
Trustee an Opinion of Counsel, acceptable to the Indenture Trustee, to such effect. 
 (b)    Subject to
Section 6.1(c), the Indenture Trustee shall not in any way be held liable by reason of any insufficiency in any of the Trust Accounts resulting from any loss on any Permitted Investment included therein, except for losses attributable to the
Indenture Trustee’s failure to make payments on such Permitted Investments issued by the Indenture Trustee, in its commercial capacity as principal obligor and not as trustee, in accordance with their terms. 

(c)    If (i) the Servicer shall have failed to give written investment directions for any funds on deposit in the
Trust Accounts to the Indenture Trustee by 11:00 A.M. (New York City time) (or such other time as may be agreed upon by the Issuer and Indenture Trustee), on the Business Day preceding each Distribution Date, (ii) a Default or Event of Default
shall have occurred and be continuing with respect to the Notes but the Notes shall not have been declared immediately due and payable pursuant to Section 5.2 or (iii) the Notes shall have been declared immediately due and payable
following an Event of Default, and amounts collected or receivable from the Trust Estate are being applied in accordance with Section 5.4(c) as if there had not been such a declaration, then the Indenture Trustee shall, to the fullest extent
practicable, invest and reinvest funds in the Trust Accounts in one or more Permitted Investments in accordance with the last written investment direction provided by the Servicer. 

Section 8.4    Release of Trust Estate. 

(a)    Subject to the payment of its fees and expenses pursuant to Section 6.7, the Indenture Trustee may, and when
required by the provisions of this Indenture shall, execute instruments to release property from the lien of this Indenture, or convey the Indenture Trustee’s interest in the same, in a manner and under circumstances that are not inconsistent
with the provisions of this Indenture. No party relying upon an instrument executed by the Indenture Trustee as provided in this Article VIII shall be bound to ascertain the Indenture Trustee’s authority, inquire into the satisfaction of any
conditions precedent or see to the application of any monies. 
 (b)    The Indenture Trustee shall, at such time as
there are no Notes Outstanding and all sums due the Indenture Trustee pursuant to Section 6.7 have been paid in 

  
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full, release any remaining portion of the Trust Estate that secured the Notes from the lien of this Indenture and release to the Issuer or any other Person entitled thereto any funds then on
deposit in the Trust Accounts; provided, that, any amounts on deposit in the Reserve Account shall be distributable only to the Depositor following the final distribution to the Certificateholders. The Indenture Trustee shall release property
from the lien of this Indenture pursuant to this Section (b) only upon receipt of an Issuer Request accompanied by an Issuer’s Certificate, an Opinion of Counsel addressed to the Indenture Trustee and (if required by the TIA) Independent
Certificates in accordance with TIA Sections 314(c) and 314(d)(1) meeting the applicable requirements of Section 11.1. 

Section 8.5    Opinion of Counsel. The Indenture Trustee shall receive at least seven (7) days’
notice when requested by the Issuer to take any action pursuant to Section 8.4(a), accompanied by copies of any instruments involved, and the Indenture Trustee shall also require, except in connection with any action contemplated by
Section 8.4(b), as a condition to such action, an Opinion of Counsel, addressed to the Indenture Trustee, stating the legal effect of any such action, outlining the steps required to complete such action, and concluding that all conditions
precedent to the taking of such action have been complied with and such action will not materially and adversely impair the security for the Notes or the rights of the Noteholders in contravention of the provisions of this Indenture; provided,
however, that such Opinion of Counsel shall not be required to express an opinion as to the fair value of the Trust Estate. Counsel rendering any such opinion may rely, without independent investigation, on the accuracy and validity of any
certificate or other instrument delivered to the Indenture Trustee in connection with any such action. 
 ARTICLE IX 

SUPPLEMENTAL INDENTURES 

Section 9.1    Supplemental Indentures Without Consent of Noteholders. 

(a)    This Indenture may be amended from time to time by a written amendment duly executed and delivered by the Issuer and
the Indenture Trustee, when authorized by an Issuer Order, without the consent of any Noteholder or any other Person; provided, however, that (i) any such amendment shall not, as evidenced by an Opinion of Counsel to the Issuer
delivered to the Indenture Trustee, adversely affect in any material respect the interests of the Noteholders or (ii) the Rating Agency Condition is satisfied with respect to such amendment and the Issuer notifies (or causes the Servicer to
notify) the Indenture Trustee in writing that the Rating Agency Condition is satisfied with respect to such amendment. 

(b)    Any term or provision of this Indenture may also be amended from time to time by the Issuer and the Indenture
Trustee, when authorized by an Issuer Order, for the purpose of conforming the terms of this Indenture to the description thereof in the Prospectus or, to the extent not contrary to the Prospectus, to the description thereof in an offering
memorandum with respect to the Certificates without the consent of any Noteholder, or any other Person. 
 (c)    Prior
to the execution of any amendment or consent pursuant to this Section 9.1, the Servicer shall provide written notification of the substance of such amendment or consent to each Rating Agency. 

  
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 (d)    Promptly after the execution of any amendment to this Indenture, the
Seller shall furnish an executed copy of such amendment to each Rating Agency. 
 Section 9.2    Supplemental
Indentures with Consent of Noteholders. 
 (a)    The Issuer and the Indenture Trustee, when authorized by an Issuer
Order, may, with the consent of the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class and with prior notice to the Rating Agencies and the Administrator, by Act of such Holders delivered to the Issuer
and the Indenture Trustee, at any time and from time to time, enter into one or more indentures supplemental hereto for the purpose of adding any provisions to, or changing in any manner or eliminating any of the provisions of, this Indenture or
modifying in any manner the rights of the Holders of the Notes under this Indenture; provided, however, that (i) no such supplemental indenture may materially adversely affect the interests of any Noteholder and (ii) no such supplemental
indenture will be permitted unless an Opinion of Counsel is delivered to the Indenture Trustee to the effect that such supplemental indenture will not cause the Issuer to be characterized for federal income tax purposes as an association taxable as
a corporation or otherwise have any material adverse impact on the federal income taxation of any Notes Outstanding or any Noteholder; and, provided further, that no such supplemental indenture may, without the consent of the Holder of each
Outstanding Note affected by such supplemental indenture: 
  

	 	(i)	change any Class Final Distribution Date or the date of payment of any installment of principal of or interest on any Note, or reduce the principal amount thereof, the Note Rate applicable thereto or the Redemption
Price with respect thereto, change the provisions of this Indenture relating to the application of collections on, or the proceeds of the sale of, the Trust Estate to payment of principal of or interest on the Notes, or change any place of payment
where, or the coin or currency in which, any Note or the interest thereon is payable; 

  

	 	(ii)	impair the right to institute suit for the enforcement of the provisions of this Indenture requiring the application of available funds, as provided in Article V, to the payment of any amount due on the Notes on or
after the respective due dates thereof (or, in the case of redemption, on or after the Redemption Date); 

  

	 	(iii)	reduce the percentage of the Note Balance or the Note Balance of the Controlling Class the consent of the Holders of which is required for any such supplemental indenture or for any waiver of compliance with the
provisions of this Indenture or of defaults hereunder and their consequences as provided in this Indenture; 

  

	 	(iv)	modify or alter (A) the provisions of the second proviso to the definition of the term “Outstanding” or (B) the definition of the term “Note Balance” or the definition of the term
“Controlling Class”; 


  
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	 	(v)	reduce the percentage of the Note Balance the consent of the Holders of which is required to direct the Indenture Trustee to sell or liquidate the Trust Estate pursuant to Section 5.4 if the proceeds of such sale
would be insufficient to pay in full the principal amount of and accrued but unpaid interest on the Notes; 

  

	 	(vi)	reduce the percentage of the Note Balance of the Controlling Class the consent of the Holders of which is required for any such supplemental indenture amending the provisions of this Indenture which specify the
applicable percentage of the Note Balance of the Controlling Class the consent of which is required for such supplemental indenture or the amendment of any other Transaction Document; 


 

	 	(vii)	affect the calculation of the amount of interest on or principal of the Notes payable on any Distribution Date, including the calculation of any of the individual components of such calculation; 


 

	 	(viii)	modify any of the provisions of this Indenture in such a manner as to affect the rights of the Holders of the Notes to the benefit of any provisions for the mandatory redemption of the Notes; or 


 

	 	(ix)	permit the creation of any Lien ranking prior to or on a parity with the lien of this Indenture with respect to any part of the Trust Estate or, except as otherwise permitted or contemplated herein, terminate the lien
of this Indenture on any such collateral at any time subject hereto or deprive the Holder of any Note of the security provided by the lien of this Indenture. 


(b)    It shall not be necessary for any Act of Noteholders under this Section 9.2 to approve the particular form of
any proposed supplemental indenture, but it shall be sufficient if such Act shall approve the substance thereof. Promptly after the execution by the Issuer and the Indenture Trustee of any supplemental indenture pursuant to this Section 9.2,
the Indenture Trustee shall mail to the Holders of the Notes to which such amendment or supplemental indenture relates a notice setting forth in general terms the substance of such supplemental indenture. Any failure of the Indenture Trustee to mail
such notice, or any defect therein, shall not, however, in any way impair or affect the validity of any such supplemental indenture. 

Section 9.3    Execution of Supplemental Indentures. In executing, or permitting the additional trusts created
by, any supplemental indenture permitted by this Article IX or the modification thereby of the trusts created by this Indenture, the Indenture Trustee shall be entitled to receive and, subject to Section 6.1 and Section 6.2, shall be fully
protected in relying upon an Opinion of Counsel stating that the execution of such supplemental indenture is authorized or permitted by this Indenture and that all conditions precedent in this Indenture to the execution and delivery of such
supplemental indenture have been satisfied. The Indenture Trustee may, but shall not be obligated to, enter into any such supplemental indenture that affects 

  
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the Indenture Trustee’s own rights, duties, liabilities or immunities under this Indenture or otherwise. Notwithstanding anything in this Indenture to the contrary, no supplemental indenture
shall be effective without the prior written consent of the Owner Trustee or the Asset Representations Reviewer, respectively, if the supplemental indenture would adversely modify the amount or timing of distributions to be made to the Owner Trustee
or the Asset Representations Reviewer, as applicable, under this Indenture. 
 Section 9.4    Effect of
Supplemental Indenture. Upon the execution of any supplemental indenture pursuant to the provisions hereof, this Indenture shall be and shall be deemed to be modified and amended in accordance therewith with respect to the Notes affected
thereby, and the respective rights, limitations of rights, obligations, duties, liabilities and immunities under this Indenture of the Indenture Trustee, the Issuer and the Holders of the Notes shall thereafter be determined, exercised and enforced
hereunder subject in all respects to such modifications and amendments, and all the terms and conditions of any such supplemental indenture shall be and be deemed to be part of the terms and conditions of this Indenture for any and all purposes.

 Section 9.5    Conformity with Trust Indenture Act. Every amendment of this Indenture and every
supplemental indenture executed pursuant to this Article IX shall conform to the requirements of the Trust Indenture Act as then in effect so long as this Indenture shall then be qualified under the Trust Indenture Act. 

Section 9.6    Reference in Notes to Supplemental Indentures. Any Notes authenticated and delivered after the
execution of any supplemental indenture pursuant to this Article IX may, and if required by the Indenture Trustee shall, bear a notation in form approved by the Indenture Trustee as to any matter provided for in such supplemental indenture. If the
Issuer or the Indenture Trustee shall so determine, new Notes so modified as to conform, in the opinion of the Indenture Trustee and the Issuer, to any such supplemental indenture may be prepared and executed by the Issuer and authenticated and
delivered by the Indenture Trustee in exchange for Outstanding Notes. 
 ARTICLE X 

REDEMPTION OF NOTES 

Section 10.1    Redemption. 

(a)    The Notes are subject to redemption in whole, but not in part, at the direction of the Servicer, pursuant to
Section 9.1(a) of the Sale and Servicing Agreement, on any Distribution Date on which the Servicer exercises its option to purchase the assets of the Issuer pursuant to such Section 9.1(a), and the amount paid by the Servicer shall be
treated as collections in respect of the Receivables and applied to pay all amounts due to the Servicer under the Sale and Servicing Agreement and the unpaid principal amount of the Notes plus all accrued and unpaid interest (including any overdue
interest) thereon. If the Notes are to be redeemed pursuant to this Section 10.1(a), the Issuer shall furnish or cause the Servicer to furnish notice of such redemption to the Depositor, the Indenture Trustee, the Owner Trustee, the Asset
Representations Reviewer, the Rating Agencies and the Administrator not later than ten (10) days prior to the Redemption Date and the Issuer shall deposit the Redemption Price of the Notes to be redeemed in the Note Payment Account by 10:00
A.M. (New York City time) on the Redemption Date, whereupon all such Notes shall be due and payable on the Redemption Date. 

  
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 (b)    In the event that the assets of the Issuer are purchased by the
Servicer pursuant to Section 9.1(a) of the Sale and Servicing Agreement, all amounts on deposit in the Note Payment Account shall be paid to the Noteholders up to the unpaid principal amount of the Notes and all accrued and unpaid interest
thereon. If such amounts are to be paid to Noteholders pursuant to this Section 10.1(b), the Issuer shall, to the extent practicable, furnish or cause the Servicer to furnish notice of such event to the Depositor, the Indenture Trustee, the
Rating Agencies and the Administrator not later than ten (10) days prior to the Redemption Date, whereupon all such amounts shall be payable on the Redemption Date. 

Section 10.2    Form of Redemption Notice. 

(a)    Notice of redemption of the Notes under Section 10.1(a) shall be given by the Indenture Trustee by first-class
mail, postage prepaid, or by facsimile mailed or transmitted promptly following receipt of notice from the Issuer or the Servicer pursuant to Section 10.1(a), but not later than ten (10) days prior to the applicable Redemption Date, to
each Holder of the Notes as of the close of business on the second Record Date preceding the applicable Redemption Date, at such Holder’s address or facsimile number appearing in the Note Register. 

(b)    All notices of redemption shall state: 
  

	 	(i)	the Redemption Date; 

  

	 	(ii)	the Redemption Price; and 

  

	 	(iii)	the place where the Notes are to be surrendered for payment of the Redemption Price (which shall be the office or agency of the Issuer to be maintained as provided in Section 3.2). 


(c)    Notice of redemption of the Notes shall be given by the Indenture Trustee in the name and at the expense of the
Issuer. Any failure to give notice of redemption, or any defect therein, to any Holder of any Note shall not, however, impair or affect the validity of the redemption of any other Note. 

Section 10.3    Notes Payable on Redemption Date. The Notes to be redeemed shall, following notice of
redemption as required by Section 10.2 (in the case of redemption pursuant to Section 10.1(a)), become due and payable on the Redemption Date at the Redemption Price and (unless the Issuer shall default in the payment of the Redemption
Price) no interest shall accrue on the Redemption Price for any period after the date to which accrued interest is calculated for purposes of calculating the Redemption Price. 

  
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 ARTICLE XI 

MISCELLANEOUS 

Section 11.1    Compliance Certificates and Opinions, etc. 

(a)    Upon any application or request by the Issuer to the Indenture Trustee to take any action under any provision of
this Indenture, the Issuer shall furnish to the Indenture Trustee (i) an Issuer’s Certificate stating that all conditions precedent, if any, provided for in this Indenture relating to the proposed action have been complied with,
(ii) an Opinion of Counsel stating that, in the opinion of such counsel, all such conditions precedent, if any, have been complied with and (iii) (if required by the TIA) an Independent Certificate from a firm of certified public accountants
meeting the applicable requirements of this Section 11.1, except that, in the case of any such application or request as to which the furnishing of such documents is specifically required by any provision of this Indenture, no additional
certificate or opinion need be furnished. 
 (b)    Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include: 
  

	 	(i)	a statement that each signatory of such certificate or opinion has read or has caused to be read such covenant or condition and the definitions herein relating thereto; 


 

	 	(ii)	a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based; 


 

	 	(iii)	a statement that, in the opinion of each such signatory, such signatory has made such examination or investigation as is necessary to enable such signatory to express an informed opinion as to whether or not such
covenant or condition has been complied with; and 

  

	 	(iv)	a statement as to whether, in the opinion of each such signatory, such condition or covenant has been complied with. 


(c)    Prior to the deposit of any Collateral or other property or securities with the Indenture Trustee that is to be
made the basis for the release of any property or securities subject to the lien of this Indenture, the Issuer shall, in addition to any obligation imposed in Section 11.1(a) or elsewhere in this Indenture, deliver to the Indenture Trustee an
Issuer’s Certificate certifying or stating the opinion of each person signing such certificate as to the fair value (within ninety (90) days of such deposit) to the Issuer of the Collateral or other property or securities to be so
deposited. 
 (d)    Whenever the Issuer is required to furnish to the Indenture Trustee an Issuer’s Certificate
certifying or stating the opinion of any signer thereof as to the matters described in Section 11.1(c), the Issuer shall also furnish to the Indenture Trustee an Independent Certificate as to the same matters if the fair value to the Issuer of
the property or securities to be 

  
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so deposited and of all other such property or securities made the basis of any such withdrawal or release since the commencement of the then-current fiscal year of the Issuer, as set forth in
the certificates furnished pursuant to Section 11.1(c) and this Section 11.1(d), is 10% or more of the Note Balance, but such a certificate need not be furnished with respect to any property or securities so deposited if the fair value
thereof to the Issuer as set forth in the related Issuer’s Certificate is less than $25,000 or less than 1% of the Note Balance. 

(e)    Whenever any property or securities are to be released from the lien of this Indenture, the Issuer shall also
furnish to the Indenture Trustee an Issuer’s Certificate certifying or stating the opinion of each person signing such certificate as to the fair value (within ninety (90) days of such release) of the property or securities proposed to be
released and stating that in the opinion of such person the proposed release will not impair the security under this Indenture in contravention of the provisions hereof. 

(f)    Whenever the Issuer is required to furnish to the Indenture Trustee an Issuer’s Certificate certifying or
stating the opinion of any signer thereof as to the matters described in Section 11.1(e), the Issuer shall also furnish to the Indenture Trustee an Independent Certificate as to the same matters if the fair value of the property or securities
and of all other property, other than property as contemplated by Section 11.1(g) or securities released from the lien of this Indenture since the commencement of the then-current calendar year, as set forth in the certificates required by
Section 11.1(e) and this Section 11.1(f), is 10% or more of the Note Balance, but such a certificate need not be furnished in the case of any release of property or securities if the fair value thereof as set forth in the related
Issuer’s Certificate is less than $25,000 or less than 1% of the Note Balance. 
 (g)    Notwithstanding
Section 2.10 or any other provisions of this Section 11.1, the Issuer may, without compliance with the requirements of the other provisions of this Section 11.1, (i) collect, liquidate, sell or otherwise dispose of Receivables and
Financed Vehicles as and to the extent permitted or required by the Transaction Documents and (ii) make cash payments out of the Trust Accounts as and to the extent permitted or required by the Transaction Documents. 

Section 11.2    Form of Documents Delivered to Indenture Trustee. 

(a)    In any case where several matters are required to be certified by, or covered by an opinion of, any specified
Person, it is not necessary that all such matters be certified by, or covered by the opinion of, only one such Person, or that they be so certified or covered by only one document, but one such Person may certify or give an opinion with respect to
some matters and one or more other such Persons as to other matters, and any such Person may certify or give an opinion as to such matters in one or several documents. 

(b)    Any certificate or opinion of an Authorized Officer of the Issuer may be based, insofar as it relates to legal
matters, upon a certificate or opinion of, or representations by, counsel, unless such officer knows, or in the exercise of reasonable care should know, that the certificate or opinion or representations with respect to the matters upon which such
officer’s certificate or opinion is based are erroneous. Any such certificate of an Authorized Officer or Opinion of Counsel may be based, insofar as it relates to factual matters, upon a certificate or


  
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opinion of, or representations by, one or more officers of the Depositor, the Seller, the Servicer, the Administrator or the Issuer, stating that the information with respect to such factual
matters is in the possession of the Depositor, the Seller, the Servicer, the Administrator or the Issuer, unless such Authorized Officer or counsel knows, or in the exercise of reasonable care should know, that the certificate or opinion or
representations with respect to such matters are erroneous. 
 (c)    Where any Person is required to make, give or
execute two or more applications, requests, consents, certificates, statements, opinions or other instruments under this Indenture, they may, but need not, be consolidated and form one instrument. 

(d)    Whenever in this Indenture, in connection with any application or certificate or report to the Indenture Trustee,
it is provided that the Issuer shall deliver any document as a condition of the granting of such application, or as evidence of the Issuer’s compliance with any term hereof, it is intended that the truth and accuracy, at the time of the
granting of such application or at the effective date of such certificate or report (as the case may be), of the facts and opinions stated in such document shall in such case be conditions precedent to the right of the Issuer to have such
application granted or to the sufficiency of such certificate or report. The foregoing shall not, however, be construed to affect the Indenture Trustee’s right to rely upon the truth and accuracy of any statement or opinion contained in any
such document as provided in Article VI. 
 Section 11.3    Acts of Noteholders. 

(a)    Any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to
be given or taken by the Noteholders may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by the Noteholders in person or by agents duly appointed in writing, and except as herein otherwise expressly
provided such action shall become effective when such instrument or instruments are delivered to the Indenture Trustee and, where it is hereby expressly required, to the Issuer. Such instrument or instruments (and the action embodied therein and
evidenced thereby) are herein sometimes referred to as the “Act” of the Noteholders signing such instrument or instruments. Proof of execution of any such instrument or of a writing appointing any such agent shall be sufficient for
any purpose of this Indenture and (subject to Section 6.1) conclusive in favor of the Indenture Trustee and the Issuer, if made in the manner provided in this Section 11.3. 

(b)    The fact and date of the execution by any Person of any such instrument or writing may be proved in any manner that
the Indenture Trustee deems sufficient. 
 (c)    The ownership of Notes shall be proved by the Note Register. 

(d)    Any request, demand, authorization, direction, notice, consent, waiver or other action by the Holder of any Notes
shall bind the Holder of every Note issued upon the registration thereof or in exchange therefor or in lieu thereof, in respect of anything done, omitted or suffered to be done by the Indenture Trustee or the Issuer in reliance thereon, whether or
not notation of such action is made upon such Note. 

  
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 Section 11.4    Notices, etc., to Indenture Trustee, Issuer and
Rating Agencies. 
 (a)    Any request, demand, authorization, direction, notice, instruction, consent, waiver, Act
of Noteholders or other document provided or permitted by this Indenture shall be in writing and if such request, demand, authorization, direction, notice, instruction, consent, waiver, Act of Noteholders or other document is to be made upon, given
or furnished to or filed with: 
  

	 	(i)	the Indenture Trustee by any Noteholder or by the Issuer, shall be sufficient for every purpose hereunder if made, given, furnished or filed in writing to or with the Indenture Trustee at its Corporate Trust Office;


  

	 	(ii)	the Issuer by the Indenture Trustee or by any Noteholder, shall be sufficient for every purpose hereunder if in writing and sent by first-class mail, postage prepaid, or overnight courier to the Issuer addressed to:
CarMax Auto Owner Trust 2018-1, in care of Wilmington Trust, National Association, at its Corporate Trust Office as defined in the Trust Agreement, with a copy to the Administrator, at 12800 Tuckahoe Creek
Parkway, Richmond, Virginia 23238, Attention: Treasury Department, or at any other address previously furnished in writing to the Indenture Trustee by the Issuer or the Administrator; 


 

	 	(iii)	the Depositor by the Indenture Trustee, the Servicer or any Noteholder, it shall be sufficient for every purpose hereunder if in writing and sent by first-class mail, postage prepaid, or overnight courier to the
Depositor addressed to CarMax Auto Funding LLC at 12800 Tuckahoe Creek Parkway, Suite 400, Richmond, Virginia 23238, Attention: Treasurer; or 

  

	 	(iv)	the Administrator by the Indenture Trustee, the Issuer, the Servicer, the Depositor or any Noteholder, shall be sufficient for every purpose hereunder if in writing and sent by first-class mail, postage prepaid, or
overnight courier to the Administrator addressed to CarMax Business Services, LLC at 12800 Tuckahoe Creek Parkway, Richmond, Virginia 23238, Attention: Treasury Department. 


(b)    Notices required to be given to the Rating Agencies by the Issuer, the Indenture Trustee or the Owner Trustee shall
be in writing, personally delivered, telecopied or mailed by certified mail, return receipt requested, to the Administrator and the Issuer shall cause the Administrator to promptly provide such notices (i) in the case of Fitch, at the following
address: Fitch Ratings, Inc., 33 Whitehall Street, New York, New York 10004, Attention: Auto Asset Backed Securities Group, and via email to
surveillance-abs-auto@fitchratings.com and (ii) in the case of S&P Global Ratings, at the following address: S&P Global Ratings, 55 Water Street, New
York, New York 10041, Attention: Asset Backed Surveillance Department. The Issuer shall promptly transmit any notice received by it from the Noteholders to the Indenture Trustee. The Indenture Trustee shall likewise promptly transmit any notice
received by it from the Noteholders or Note Owners to the Issuer and, if such notice is a Repurchase Request, to the Depositor. 

  
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 Section 11.5    Notices to Noteholders; Waiver. 

(a)    Where this Indenture provides for notice to Noteholders of any event, such notice shall be sufficiently given
(unless otherwise herein expressly provided) if in writing and mailed, first-class, postage prepaid to each Noteholder affected by such event, at its address as it appears on the Note Register, not later than the latest date, and not earlier than
the earliest date, prescribed for the giving of such notice. In any case where notice to Noteholders is given by mail, neither the failure to mail such notice nor any defect in any notice so mailed to any particular Noteholder shall affect the
sufficiency of such notice with respect to other Noteholders, and any notice that is mailed in the manner herein provided shall conclusively be presumed to have been duly given. 

(b)    Where this Indenture provides for notice in any manner, such notice may be waived in writing by any Person entitled
to receive such notice, either before or after the event, and such waiver shall be the equivalent of such notice. Waivers of notice by Noteholders shall be filed with the Indenture Trustee, but such filing shall not be a condition precedent to the
validity of any action taken in reliance upon such a waiver. 
 (c)    If, by reason of the suspension of regular mail
service as a result of a strike, work stoppage or similar activity, it shall be impractical to mail notice of any event to Noteholders when such notice is required to be given pursuant to any provision of this Indenture, then any manner of giving
such notice as shall be satisfactory to the Indenture Trustee shall be deemed to be a sufficient giving of such notice. 

(d)    Where this Indenture provides for notice to the Rating Agencies, failure to give such notice shall not affect any
other rights or obligations created hereunder, and shall not under any circumstance constitute a Default or Event of Default. 

(e)    If the Indenture Trustee receives a Repurchase Request and the Depositor or CarMax does not repurchase the
Receivables related to such Repurchase Request within one hundred eighty (180) days of the receipt of such Repurchase Request, the Indenture Trustee, at the direction of the Administrator pursuant to Section 2(b)(viii) of the
Administration Agreement, shall deliver a Repurchase Response Notice to the related Noteholder or Note Owner. 

Section 11.6    Alternate Payment and Notice Provisions. Notwithstanding any other provisions of this
Indenture or any of the Notes to the contrary, the Issuer may enter into any agreement with any Holder of a Note providing for a method of payment, or notice by the Indenture Trustee or any Paying Agent to such Holder, that is different from the
methods provided for in this Indenture for such payments or notices. The Issuer shall furnish to the Indenture Trustee a copy of each such agreement and the Indenture Trustee shall cause payments to be made and notices to be given in accordance with
such agreements. 

  
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 Section 11.7    Conflict with Trust Indenture Act. If any
provision hereof limits, qualifies or conflicts with another provision hereof that is required to be included in this Indenture by any of the provisions of the Trust Indenture Act, such required provision shall control. The provisions of TIA
Sections 310 through 317 that impose duties on any Person (including the provisions automatically deemed included herein unless expressly excluded by this Indenture) are a part of and govern this Indenture, whether or not physically contained
herein. 
 Section 11.8    Effect of Headings and Table of Contents. The Article and Section headings herein
and the Table of Contents are for convenience of reference only and shall not define or limit any of the terms or provisions hereof. 

Section 11.9    Successors and Assigns. All covenants and agreements in this Indenture and the Notes by the
Issuer shall bind its successors and assigns, whether so expressed or not. All agreements of the Indenture Trustee in this Indenture shall bind its successors, co-trustees and agents. 

Section 11.10    Severability. If any provision of this Indenture or the Notes shall be invalid,
illegal or unenforceable, the validity, legality, and enforceability of the remaining provisions of this Indenture and the Notes shall not in any way be affected or impaired thereby. 

Section 11.11    Benefits of Indenture. Nothing in this Indenture or in the Notes, express or implied, shall
give to any Person, other than the parties hereto and their successors hereunder, the Noteholders, any other party secured hereunder and any other Person with an ownership interest in any part of the Trust Estate, any benefit or any legal or
equitable right, remedy or claim under this Indenture. 
 Section 11.12    Legal Holiday. If the date on
which any payment is due shall not be a Business Day, then (notwithstanding any other provision of the Notes or this Indenture) payment need not be made on such date but may be made on the next succeeding Business Day with the same force and effect
as if made on the date on which nominally due, and no interest shall accrue for the period from and after any such nominal date. 

Section 11.13    GOVERNING LAW; WAIVER OF RIGHT TO JURY TRIAL. 

(a)    THIS INDENTURE SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK AND THE OBLIGATIONS, RIGHTS
AND REMEDIES OF THE PARTIES UNDER THIS INDENTURE SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS WITHOUT GIVING EFFECT TO THE CONFLICTS OF LAWS PROVISIONS THEREOF WHICH MAY REQUIRE THE APPLICATION OF THE LAWS OF ANY OTHER JURISDICTION (OTHER THAN
SECTION 5-1401 OF THE NEW YORK GENERAL OBLIGATIONS LAW). 
 (b)    TO THE EXTENT
PERMITTED BY APPLICABLE LAW, EACH PARTY HERETO IRREVOCABLY WAIVES ALL RIGHT OF TRIAL BY JURY IN ANY ACTION, PROCEEDING OR COUNTERCLAIM BASED ON, OR ARISING OUT OF, UNDER OR IN CONNECTION WITH THIS INDENTURE OR ANY MATTER ARISING HEREUNDER. 

  
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 Section 11.14    Counterparts. This Indenture may be executed in
any number of counterparts, each of which counterparts when so executed shall be deemed to be an original, and all of which counterparts shall together constitute but one and the same instrument. 

Section 11.15    Recording of Indenture. If this Indenture is subject to recording in any appropriate public
recording office, such recording shall be effected by the Issuer at its expense and shall be accompanied by an Opinion of Counsel (which may be counsel to the Indenture Trustee or any other counsel reasonably acceptable to the Indenture Trustee) to
the effect that such recording is necessary either for the protection of the Noteholders or any other Person secured hereunder or for the enforcement of any right or remedy granted to the Indenture Trustee under this Indenture. 

Section 11.16    Trust Obligation. No recourse may be taken, directly or indirectly, with respect to the
obligations of the Issuer, the Owner Trustee or the Indenture Trustee on the Notes or under this Indenture or any certificate or other writing delivered in connection herewith or therewith against (i) the Indenture Trustee or the Owner Trustee
in its individual capacity, (ii) any holder of a beneficial interest in the Issuer or (iii) any partner, owner, beneficiary, agent, officer, director, employee or agent of the Indenture Trustee or the Owner Trustee in its individual
capacity, of any holder of a beneficial interest in the Issuer, the Owner Trustee or the Indenture Trustee or of any successor or assign of the Indenture Trustee or the Owner Trustee in its individual capacity, except as any such Person may have
expressly agreed (it being understood that the Indenture Trustee and the Owner Trustee have no such obligations in their individual capacities), and except that any such partner, owner or beneficiary shall be fully liable, to the extent provided by
applicable law, for any unpaid consideration for stock, unpaid capital contribution or failure to pay any installment or call owing to such entity. For all purposes of this Indenture, in the performance of any duties or obligations of the Issuer
hereunder, the Owner Trustee shall be subject to, and entitled to the benefits of, the terms and provisions of Article VI, Article VII and Article VIII of the Trust Agreement. 

Section 11.17    No Petition. The Indenture Trustee, by entering into this Indenture, and each Noteholder or
Note Owner, by accepting a Note or beneficial interest in a Note, as the case may be, hereby covenant and agree that they will not at any time institute against the Depositor or the Issuer, or join in any institution against the Depositor or the
Issuer of, or cooperate with or encourage others to institute against the Depositor or the Issuer, any bankruptcy, reorganization, arrangement, insolvency or liquidation proceedings or other proceedings under any United States federal or State
bankruptcy or similar law in connection with any obligations relating to the Notes, this Indenture or any of the other Transaction Documents. 

Section 11.18    Inspection. The Issuer shall, with reasonable prior notice, permit any representative of the
Indenture Trustee, during the Issuer’s normal business hours, to examine the books of account, records, reports and other papers of the Issuer, to make copies and extracts therefrom, to cause such books to be audited by Independent certified
public accountants, and to discuss the Issuer’s affairs, finances and accounts with the Issuer’s officers, employees, and Independent certified public accountants, all at such reasonable times and as often as may be reasonably requested.
The Indenture Trustee shall and shall cause its representatives to hold in confidence all such information except to the extent disclosure may be required by law (and all reasonable applications for confidential treatment are unavailing) and except
to the extent that the Indenture Trustee may reasonably determine that such disclosure is consistent with its obligations hereunder. 

  
 71 








 Section 11.19    Third-Party Beneficiaries. This Indenture shall
inure to the benefit of and be binding upon the parties hereto, the Owner Trustee, the Asset Representations Reviewer, the Noteholders, the Certificateholders and their respective successors and permitted assigns. Except as otherwise provided in
this Article XI, no other Person shall have any right or obligation hereunder. 
 Section 11.20    Limitation on
Recourse to CarMax Funding. Notwithstanding anything to the contrary contained herein, the Depositor shall only be required to pay (i) any fees, expenses, indemnities or other liabilities that it may incur under the Transaction Documents
from funds available pursuant to, and in accordance with, the applicable payment priorities set forth in the Transaction Documents and (ii) to the extent the Depositor has additional funds available (other than funds described in the preceding
clause (i)) that would be in excess of amounts that would be necessary to pay the debt and other obligations of the Depositor in accordance with the Depositor’s certificate of formation, operating agreement and all financing documents to which
the Depositor is a party. The agreement set forth in the preceding sentence shall constitute a subordination agreement for purposes of Section 510(a) of the Bankruptcy Code. In addition, no amount owing by the Depositor under any Transaction
Document in excess of liabilities that it is required to pay in accordance with the preceding sentence shall constitute a “claim” (as defined in Section 101(5) of the Bankruptcy Code) against it. 

Section 11.21    Legal Fees Associated with Indemnification. With respect to any indemnification provisions in
this Indenture providing that a party to this Indenture is required to indemnify another party to this Indenture for attorney’s fees and expenses, such fees and expenses are intended to include attorney’s fees and expenses relating to the
enforcement of such indemnity. 
 Section 11.22    Limitation of Liability of the Owner Trustee. It is
expressly understood and agreed by the parties hereto that (a) this Indenture is executed and delivered by Wilmington Trust, National Association, not individually or personally but solely as Owner Trustee of the Issuer, in the exercise of the
powers and authority conferred and vested in it, (b) each of the representations, undertakings and agreements herein made on the part of the Issuer is made and intended not as personal representations, undertakings and agreements by Wilmington
Trust, National Association but is made and intended for the purpose of binding only the Issuer, (c) nothing herein contained shall be construed as creating any liability on Wilmington Trust, National Association, individually or personally, to
perform any covenant either expressed or implied contained herein of the Issuer, all such liability, if any, being expressly waived by the parties hereto and by any Person claiming by, through or under the parties hereto, (d) Wilmington Trust,
National Association has not verified and made no investigation as to the accuracy or completeness of any representations and warranties made by the Issuer in this Indenture and (e) under no circumstances shall Wilmington Trust, National
Association be personally liable for the payment of any indebtedness or expenses of the Issuer or be liable for the breach or failure of any obligation, representation, warranty or covenant made or undertaken by the Issuer under this Indenture or
any other related documents. 
 [SIGNATURE PAGE FOLLOWS] 

  
 72 








 IN WITNESS WHEREOF, the Issuer and the Indenture Trustee have caused this Indenture to be duly
executed by their respective officers, thereunto duly authorized and duly attested, all as of the day and year first above written. 
  

			
	CARMAX AUTO OWNER TRUST 2018-1
		
	By:	 	WILMINGTON TRUST, NATIONAL ASSOCIATION,
		 	not in its individual capacity but solely as Owner Trustee
		
	By:	 	 /s/ Jennifer A. Luce

	Name:	 	Jennifer A. Luce
	Title:	 	Vice President
	
	U.S. BANK
	 NATIONAL ASSOCIATION,
 not in its
individual capacity but solely as Indenture Trustee

		
	By:	 	 /s/ Christopher J. Nuxoll

	Name:	 	Christopher J. Nuxoll
	Title:	 	Vice President


 Indenture (CAOT 2018-1) 







 APPENDIX A 

Additional Representations and Warranties 
  

	1.	This Indenture creates a valid and continuing “security interest” (as defined in the Relevant UCC) in the Receivables in favor of the Indenture Trustee, which security interest is prior to all other Liens and
is enforceable as such as against creditors of and purchasers from the Issuer. 

  

	2.	With respect to each Receivable, the Issuer has taken all steps necessary to perfect its security interest against the related Obligor in the related Financed Vehicle. 


 

	3.	The Receivables constitute “tangible chattel paper” (as defined in the Relevant UCC). 

  

	4.	The Issuer owns and has good and marketable title to the Receivables free and clear of any Lien, claim or encumbrance of any Person. 


 

	5.	The Issuer has caused or will cause prior to the Closing Date the filing of all appropriate financing statements in the proper filing office in the appropriate jurisdictions under applicable law necessary to perfect the
security interest in the Receivables granted to the Indenture Trustee under this Indenture. 

  

	6.	Other than the security interest granted to the Indenture Trustee under the Indenture, the Issuer has not pledged, assigned, sold, granted a security interest in, or otherwise conveyed any of the Receivables. The Issuer
has not authorized the filing of and is not aware of any financing statements against the Seller, the Depositor or the Issuer that include a description of collateral covering the Receivables other than the financing statements relating to the
security interests granted to the Depositor, the Issuer and the Indenture Trustee under the Transaction Documents or any financing statement that has been terminated. The Issuer is not aware of any judgment or tax lien filings against the Seller,
the Depositor or the Issuer. 

  

	7.	All financing statements filed or to be filed against the Issuer in favor of the Indenture Trustee in connection herewith describing the Receivables contain a statement to the following effect: “A purchase of or
security interest in any collateral described in this financing statement will violate the rights of the Indenture Trustee.” 


  
 App. A 








 Exhibit A-1 

Form of Class A-1 Note 

UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER
OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE & CO., HAS AN INTEREST HEREIN. 
 THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING
PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. 
  

			
	REGISTERED	  	$[            ]
		
	NO. R-[    ]	  	CUSIP NO. 14314A AA7

 CARMAX AUTO OWNER TRUST 2018-1 

1.70000% CLASS A-1 ASSET-BACKED NOTE 

CarMax Auto Owner Trust 2018-1, a statutory trust organized and existing under the laws of the State
of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to Cede & Co., or its registered assigns, the principal sum of [        ] DOLLARS hereto
payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-1 Notes pursuant to Section 2.8 of
the Indenture dated as of January 1, 2018 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank National Association, a national banking association,
as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, if not paid prior to such date, the unpaid principal amount of this Class A-1 Note
shall be due and payable on the earlier of the February 15, 2019 Distribution Date (the “Class A-1 Final Distribution Date”) and the Redemption Date, if any, pursuant
to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. 

The Issuer shall pay interest on this Class A-1 Note at the rate per annum shown above on each
Distribution Date, until the principal of this Class A-1 Note is paid or made available for payment, on the principal amount of this Class A-1 Note outstanding
on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class A-1 Note shall accrue for each Distribution Date from and including the 

  
 Ex. A-1-1 








 
preceding Distribution Date (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date.
Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest on this Class A-1 Note on each Distribution Date shall equal the product
of (i) the rate per annum shown above, (ii) the principal amount of this Class A-1 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on
such preceding Distribution Date) and (iii) the actual number of days in the applicable interest period divided by 360; provided, however, that the interest payable on this Class A-1 Note on
February 15, 2018 shall equal $        . The principal of and interest on this Class A-1 Note shall be paid in the manner specified on the reverse hereof. 

“Distribution Date” means the 15th day of each month or, if such 15th day is not a Business Day, the following Business Day,
commencing on February 15, 2018. 
 The principal of and interest on this Class A-1 Note
are payable in such coin or currency of the United States as at the time of payment is legal tender for payment of public and private debts. All payments made by the Issuer with respect to this Class A-1
Note shall be applied first to interest due and payable on this Class A-1 Note as provided above and then to the unpaid principal of this Class A-1 Note. 

Reference is hereby made to the further provisions of this Class A-1 Note set forth on the
reverse hereof, which further provisions shall for all purposes have the same effect as if fully set forth on the face of this Class A-1 Note. 

Unless the certificate of authentication hereon has been executed by an authorized officer of the Indenture Trustee, by manual or facsimile
signature, this Class A-1 Note shall not entitle the Holder hereof to any benefit under the Indenture or be valid for any purpose. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 Ex. A-1-2 








 IN WITNESS WHEREOF, the Issuer has caused this
Class A-1 Note to be duly executed as of the date set forth below. 
 Dated: January 24, 2018 

 

			
	CARMAX AUTO OWNER TRUST 2018-1
		
	By:	 	WILMINGTON TRUST, NATIONAL ASSOCIATION,
		 	not in its individual capacity but solely
		 	as Owner Trustee
		
	By:	 	  

	Name:	 	
	Title:	 	


 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

This is one of the Class A-1 Notes designated above and referred to in the within-mentioned
Indenture. 
 Dated: January 24, 2018 
  

			
	U.S. BANK NATIONAL ASSOCIATION,
not in its individual capacity but solely as Indenture Trustee
		
	By:	 	
                     
                    

	Name:	 	
	Title:	 	



  
 Ex. A-1-3 








 [REVERSE OF CLASS A-1 NOTE] 

This Class A-1 Note is one of a duly authorized issue of Notes of the Issuer, designated as its
1.70000% Class A-1 Asset-backed Notes, which, together with the 2.23% Class A-2a Asset-backed Notes, the LIBOR plus 0.15%
Class A-2b Asset-backed Notes, the 2.48% Class A-3 Asset-backed Notes, the 2.64% Class A-4 Asset-backed Notes, the
2.83% Class B Asset-backed Notes, the 2.95% Class C Asset-backed Notes and the 3.37% Class D Asset-backed Notes (collectively, the “Notes”), are issued under the Indenture, to which Indenture and all indentures
supplemental thereto reference is hereby made for a statement of the respective rights and obligations thereunder of the Issuer, the Indenture Trustee and the Holders of the Notes. The Notes are subject to all terms of the Indenture. 

The Class A-1 Notes are and shall be equally and ratably secured by the collateral pledged as
security therefor as provided in the Indenture. The Class A-2a Notes, the Class A-2b Notes, the Class A-3 Notes,
the Class A-4 Notes, the Class B Notes, the Class C Notes and the Class D Notes are subordinated to the Class A-1 Notes to the extent set forth
in the Indenture and the Sale and Servicing Agreement. 
 As described above, the entire unpaid principal amount of this Class A-1 Note shall be due and payable on the earlier of the Class A-1 Final Distribution Date and the Redemption Date, if any, pursuant to Section 10.1 of the
Indenture. Notwithstanding the foregoing, the entire unpaid principal amount of the Notes, together with accrued and unpaid interest thereon through the date of acceleration, shall be due and payable on the date on which an Event of Default shall
have occurred and be continuing if the Indenture Trustee or the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class have declared the Notes to be immediately due and payable in the manner provided in
Section 5.2 of the Indenture. All principal payments on the Class A-1 Notes shall be made pro rata to the Holders entitled thereto if the Notes have been declared immediately due and payable. 

Payments of interest on this Class A-1 Note due and payable on any Distribution Date, together
with the installment of principal, if any, due and payable on such Distribution Date, to the extent not in full payment of this Class A-1 Note, shall be made by check mailed to the Person whose name
appears as the Holder of this Class A-1 Note (or one or more Predecessor Notes) on the Note Register as of the close of business on the Record Date preceding such Distribution Date or by wire transfer in
immediately available funds to the account designated in writing to the Indenture Trustee by such Person at least five (5) Business Days prior to the related Record Date, except that with respect to
Class A-1 Notes registered on the Record Date in the name of the nominee of the Clearing Agency (initially, such nominee to be Cede & Co.), payments will be made by wire transfer in immediately
available funds to the account designated by such nominee. Such checks shall be mailed to the Person entitled thereto at the address of such Person as it appears on the Note Register as of such Record Date without requiring that this Class A-1 Note be submitted for notation of payment. Any reduction in the principal amount of this Class A-1 Note (or any one or more Predecessor Notes) effected by
any payments made on any Distribution Date shall be binding upon all future Holders of this Class A-1 Note and of any Class A-1 Note issued upon the
registration of transfer hereof or in exchange hereof or in lieu hereof, whether or not noted hereon. If funds are expected to be available, as provided in the Indenture, for payment in full of the then remaining unpaid principal amount of this Class A-1 

  
 Ex. A-1-4 








 
Note on a Distribution Date, then the Indenture Trustee, in the name of and on behalf of the Issuer, shall notify the Person who was the Holder hereof as of the Record Date preceding such
Distribution Date by notice mailed or transmitted by facsimile prior to such Distribution Date, and the amount then due and payable shall be payable only upon presentation and surrender of this Class A-1
Note at the Indenture Trustee’s Corporate Trust Office or at the office of the Indenture Trustee’s agent appointed for such purposes located in St. Paul, Minnesota. 

The Issuer shall pay interest on overdue installments of interest at the Class A-1 Rate to the
extent lawful. 
 As provided in the Indenture, the Notes may be redeemed, in whole but not in part, in the manner and to the extent
described in the Indenture and the Sale and Servicing Agreement. 
 As provided in the Indenture, and subject to certain limitations set
forth therein, the transfer of this Class A-1 Note may be registered on the Note Register upon surrender of this Class A-1 Note for registration of transfer at
the office or agency designated by the Issuer pursuant to the Indenture, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Indenture Trustee duly executed by, the Holder hereof or such Holder’s
attorney duly authorized in writing, with such signature guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar, and thereupon one or more new Class A-1
Notes in any authorized denomination and in the same aggregate principal amount will be issued to the designated transferee or transferees. No service charge will be charged for any registration of transfer or exchange of this Class A-1 Note, but the transferor may be required to pay a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any such registration of transfer or exchange.

 Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants
and agrees that no recourse may be taken, directly or indirectly, with respect to the obligations of the Issuer or the Indenture Trustee on the Notes or under the Indenture or any certificate or other writing delivered in connection therewith
against (i) the Indenture Trustee or the Owner Trustee, each in its individual capacity, (ii) any holder of a beneficial interest in the Issuer or (iii) any partner, owner, beneficiary, agent, officer, director or employee of the
Indenture Trustee or the Owner Trustee, each in its individual capacity, or any holder of a beneficial interest in the Issuer, the Owner Trustee or the Indenture Trustee or any successor or assign of the Indenture Trustee or the Owner Trustee, each
in its individual capacity, except as any such Person may have expressly agreed and except that any such partner, owner or beneficiary shall be fully liable, to the extent provided by applicable law, for any unpaid consideration for stock, unpaid
capital contribution for stock, unpaid capital contribution or failure to pay any installment or call owing to such entity. 
 Each
Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and agrees that such Noteholder or Note Owner shall not at any time institute against the Depositor or the Issuer, or
join in any institution against the Depositor or the Issuer of, any bankruptcy, reorganization, arrangement, insolvency or liquidation proceedings under any United States federal or State bankruptcy or similar law in connection with any obligations
relating to the Notes, the Certificates, the Indenture or any of the other Transaction Documents. 

  
 Ex. A-1-5 








 Each Noteholder or Note Owner, by its acceptance of this Note other than a Retained Note or, in
the case of a Note Owner, a beneficial interest in this Note, represents and warrants that either (a) it is not acquiring such Note (or an interest therein) with the assets of any (i) “employee benefit plan” (as defined in
Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”)) subject to the fiduciary requirements of ERISA, (ii) “plan” described in Section 4975(e)(1) of the Internal Revenue Code
of 1986, as amended (the “Code”), including individual retirement accounts and Keogh plans, that is subject to the provisions of Section 4975 of the Code, (iii) entity whose underlying assets include “plan
assets” within the meaning of the United States Department of Labor Regulation 29 C.F.R. Section 2510.3-101, as modified by Section 3(42) of ERISA, by reason of an employee benefit plan’s
or plan’s investment in such entity or (iv) employee benefit plan or arrangement not subject to Title I of ERISA or Section 4975 of the Code; or (b) (i) the acquisition and holding of such Note will not constitute or result in a non-exempt “prohibited transaction” under Section 406 of ERISA or Section 4975 of the Code or a violation of any substantially similar applicable law and (ii) certain other requirements are
satisfied, if applicable, as set forth in Section 2.5(k) of the Indenture. 
 Each Noteholder or Note Owner, by its acceptance of this
Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees to provide to the Indenture Trustee, any Paying Agent or the Issuer, upon its request, the Noteholder Tax Identification Information and, to the extent FATCA
Withholding Tax is applicable, the Noteholder FATCA Information. In addition, each Noteholder or Note Owner, by its acceptance of this Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees that the Indenture Trustee has
the right to withhold any amounts of interest (properly withholdable under law and without any corresponding gross-up) payable to a Noteholder or holder of an interest in a Note that fails to comply with the
requirements of the preceding sentence. 
 The Issuer has entered into the Indenture and this
Class A-1 Note is issued with the intention that, for federal, State and local income, and franchise tax purposes, the Notes (other than any Retained Notes) will qualify as indebtedness of the Issuer
secured by the Trust Estate. Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, agrees to treat the Notes (other than any Retained Notes) for federal, State and local income,
single business and franchise tax purposes as indebtedness of the Issuer. 
 Prior to the due presentment for registration of transfer of
this Class A-1 Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the Indenture Trustee may treat the Person in whose name this Class A-1
Note (as of the day of determination or as of such other date as may be specified in the Indenture) is registered as the owner hereof for all purposes, whether or not this Class A-1 Note shall be overdue,
and none of the Issuer, the Indenture Trustee or any such agent shall be affected by notice to the contrary. 
 The Indenture permits the
Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain exceptions therein provided, to amend or waive from time to time certain terms and conditions set forth in the Indenture without the consent of the Holders of the Notes.
The Indenture also permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain exceptions as therein provided, to amend or waive from time to time certain terms and conditions set forth in the Indenture with the
consent of the Holders of Notes evidencing not 

  
 Ex. A-1-6 








 
less than 51% of the Note Balance of the Controlling Class. The Indenture also permits the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class, on behalf of
the Holders of all the Notes, to waive compliance by the Issuer with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holders of not less than 51% of the Note
Balance of the Controlling Class or the Holder of this Class A-1 Note (or any one or more Predecessor Notes) shall be conclusive and binding on such Holder and on all future Holders of this Class A-1 Note and of any Class A-1 Note issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Class A-1 Note. 
 The term “Issuer”, as used in
this Note, includes any successor to the Issuer under the Indenture. 
 The Indenture permits the Issuer, under certain circumstances, to
consolidate or merge with or into another Person, subject to the rights of the Indenture Trustee and the Holders of Notes under the Indenture. 

The Notes are issuable only in registered form in denominations as provided in the Indenture, subject to certain limitations therein set
forth. 
 THIS CLASS A-1 NOTE AND THE INDENTURE SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF
THE STATE OF NEW YORK, AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER AND THEREUNDER SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS WITHOUT GIVING EFFECT TO THE CONFLICTS OF LAWS PROVISIONS THEREOF WHICH MAY REQUIRE THE
APPLICATION OF THE LAWS OF ANY OTHER JURISDICTION (OTHER THAN SECTION 5-1401 OF THE NEW YORK GENERAL OBLIGATIONS LAW). 

No reference herein to the Indenture, and no provision of this Note or of the Indenture, shall alter or impair the obligation of the Issuer,
which is absolute and unconditional, to pay the principal of and interest on this Class A-1 Note at the times, place and rate, and in the coin or currency, herein prescribed. 

Anything herein to the contrary notwithstanding, except as expressly provided in the Transaction Documents, none of U.S. Bank National
Association, in its individual capacity, Wilmington Trust, National Association, in its individual capacity, any holder of a beneficial interest in the Issuer, or any of their respective partners, beneficiaries, agents, officers, directors,
employees or successors or assigns shall be personally liable for, nor shall recourse be had to any of them for, the payment of principal of or interest on this Class A-1 Note or the performance of, or
omission to perform, any of the covenants, obligations or indemnifications contained in the Indenture. The Holder of this Note, by its acceptance hereof, agrees that, except as expressly provided in the Transaction Documents, in the case of an Event
of Default under the Indenture, the Holder shall have no claim against any of the foregoing for any deficiency, loss or claim resulting therefrom; provided, however, that nothing contained herein shall be taken to prevent recourse to, or enforcement
against, the assets of the Issuer for any and all liabilities, obligations and undertakings contained in the Indenture or in this Class A-1 Note. 

  
 Ex. A-1-7 








 ASSIGNMENT 

SOCIAL SECURITY NUMBER 
 OR OTHER IDENTIFICATION 

NUMBER OF ASSIGNEE:
                                        

 FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto
                                         
                                  

 
  

(name and address of assignee) 
 the within Note
and all rights thereunder, and hereby irrevocably constitutes and appoints
                                , attorney, to transfer said Note on the Note
Register, with full power of substitution in the premises. 
 Dated:
                     
  

	
	                                      
                                         
    */
	
	Signature Guaranteed:
	
	                                      
                                         
    */


  

	*/	NOTICE: The signature to this assignment must correspond with the name of the registered owner as it appears on the face of the within Note in every particular, without alteration, enlargement or any change whatsoever.
Such signature must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar. 


  
 Ex. A-1-8 








 Exhibit A-2a 

Form of Class A-2a Note 

UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER
OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE & CO., HAS AN INTEREST HEREIN. 
 THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING
PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. 
  

			
	REGISTERED	  	$[            ]
		
	NO. R-[    ]	  	CUSIP NO. 14314A AB5

 CARMAX AUTO OWNER TRUST 2018-1 

2.23% CLASS A-2a ASSET-BACKED NOTE 

CarMax Auto Owner Trust 2018-1, a statutory trust organized and existing under the laws of the State
of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to Cede & Co., or its registered assigns, the principal sum of
[                    ] DOLLARS hereto payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note
Payment Account in respect of principal on the Class A-2a Notes pursuant to Section 2.8 of the Indenture dated as of January 1, 2018 (as amended, supplemented or otherwise modified and in effect
from time to time, the “Indenture”) between the Issuer and U.S. Bank National Association, a national banking association, as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided,
however, that principal of this Class A-2a Note will not be due and payable until the Class A-1 Notes have been paid in full; and, provided
further, that, if not paid prior to such date, the unpaid principal amount of this Class A-2a Note shall be due and payable on the earlier of the May 17, 2021 Distribution Date (the
“Class A-2a Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are
defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. 
 The Issuer shall pay
interest on this Class A-2a Note at the rate per annum shown above on each Distribution Date, until the principal of this Class A-2a Note is paid or made
available for payment, on the principal amount of this Class A-2a Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution
Date), subject to certain limitations contained in Section 3.1 of the Indenture. 

  
 Ex. A-2a-1 








 
Interest on this Class A-2a Note shall accrue for each Distribution Date from and including the 15th day of the preceding month (or, in the case of
the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding the 15th day of the month in which such Distribution Date occurs. Interest shall be computed on the basis of a 360-day year consisting of twelve 30-day months. Interest on this Class A-2a Note on each Distribution Date shall equal one-twelfth of the product of (i) the rate per annum shown above and (ii) the principal amount of this Class A-2a Note outstanding on the preceding Distribution
Date (after giving effect to all payments of principal made on such preceding Distribution Date); provided, however, that the interest payable on this Class A-2a Note on February 15,
2018 shall equal $        . The principal of and interest on this Class A-2a Note shall be paid in the manner specified on the reverse hereof. 

“Distribution Date” means the 15th day of each month or, if such 15th day is not a Business Day, the following Business Day,
commencing on February 15, 2018. 
 The principal of and interest on this Class A-2a Note
are payable in such coin or currency of the United States as at the time of payment is legal tender for payment of public and private debts. All payments made by the Issuer with respect to this Class A-2a
Note shall be applied first to interest due and payable on this Class A-2a Note as provided above and then to the unpaid principal of this Class A-2a Note.

 Reference is hereby made to the further provisions of this Class A-2a Note set forth on the
reverse hereof, which further provisions shall for all purposes have the same effect as if fully set forth on the face of this Class A-2a Note. 

Unless the certificate of authentication hereon has been executed by an authorized officer of the Indenture Trustee, by manual or facsimile
signature, this Class A-2a Note shall not entitle the Holder hereof to any benefit under the Indenture or be valid for any purpose. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 Ex. A-2a-2 








 IN WITNESS WHEREOF, the Issuer has caused this
Class A-2a Note to be duly executed as of the date set forth below. 
 Dated: January 24, 2018 

 

			
	CARMAX AUTO OWNER TRUST 2018-1
		
	By:	 	WILMINGTON TRUST, NATIONAL ASSOCIATION,
not in its individual capacity but solely as Owner Trustee
		
	By:	 	
                     
                    

	Name:	 	
	Title:	 	


 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

This is one of the Class A-2a Notes designated above and referred to in the within-mentioned
Indenture. 
 Dated: January 24, 2018 
  

			
	U.S. BANK NATIONAL ASSOCIATION,
not in its individual capacity but solely as Indenture Trustee
		
	By:	 	
                     
                    

	Name:	 	
	Title:	 	



  
 Ex. A-2a-3 








 [REVERSE OF CLASS A-2a NOTE] 

This Class A-2a Note is one of a duly authorized issue of Notes of the Issuer, designated as its
2.23% Class A-2a Asset-backed Notes, which, together with the 1.70000% Class A-1 Asset-backed Notes, the LIBOR plus 0.15%
Class A-2b Asset-backed Notes, the 2.48% Class A-3 Asset-backed Notes, the 2.64% Class A-4 Asset-backed Notes, the
2.83% Class B Asset-backed Notes, the 2.95% Class C Asset-backed Notes and the 3.37% Class D Asset-backed Notes (collectively, the “Notes”), are issued under the Indenture, to which Indenture and all indentures
supplemental thereto reference is hereby made for a statement of the respective rights and obligations thereunder of the Issuer, the Indenture Trustee and the Holders of the Notes. The Notes are subject to all terms of the Indenture. 

The Class A-2a Notes are and shall be equally and ratably secured by the collateral pledged as
security therefor as provided in the Indenture. The Class A-2a Notes are subordinated to the Class A-1 Notes to the extent set forth in the Indenture and the
Sale and Servicing Agreement. The Class A-3 Notes, the Class A-4 Notes, the Class B Notes, the Class C Notes and the Class D Notes are
subordinated to the Class A-2a Notes to the extent set forth in the Indenture and the Sale and Servicing Agreement. The Class A-2a Notes and the Class A-2b Notes are pari passu to the extent set forth in the Indenture and the Sale and Servicing Agreement. 

As described above, the entire unpaid principal amount of this Class A-2a Note shall be due and
payable on the earlier of the Class A-2a Final Distribution Date and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Notwithstanding the foregoing, the entire unpaid principal
amount of the Notes, together with accrued and unpaid interest thereon through the date of acceleration, shall be due and payable on the date on which an Event of Default shall have occurred and be continuing if the Indenture Trustee or the Holders
of Notes evidencing not less than 51% of the Note Balance of the Controlling Class have declared the Notes to be immediately due and payable in the manner provided in Section 5.2 of the Indenture. All principal payments on the Class A-2a Notes shall be made pro rata to the Holders entitled thereto if the Notes have been declared immediately due and payable. 

Payments of interest on this Class A-2a Note due and payable on any Distribution Date, together
with the installment of principal, if any, due and payable on such Distribution Date, to the extent not in full payment of this Class A-2a Note, shall be made by check mailed to the Person whose name
appears as the Holder of this Class A-2a Note (or one or more Predecessor Notes) on the Note Register as of the close of business on the Record Date preceding such Distribution Date or by wire transfer in
immediately available funds to the account designated in writing to the Indenture Trustee by such Person at least five (5) Business Days prior to the related Record Date, except that with respect to
Class A-2a Notes registered on the Record Date in the name of the nominee of the Clearing Agency (initially, such nominee to be Cede & Co.), payments will be made by wire transfer in immediately
available funds to the account designated by such nominee. Such checks shall be mailed to the Person entitled thereto at the address of such Person as it appears on the Note Register as of such Record Date without requiring that this Class A-2a Note be submitted for notation of payment. Any reduction in the principal amount of this Class A-2a Note (or any one or more Predecessor Notes) effected
by any payments made on any Distribution Date shall be binding upon all future Holders of this Class A-2a Note and of any 

  
 Ex. A-2a-4 








 
Class A-2a Note issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof, whether or not noted hereon. If funds are
expected to be available, as provided in the Indenture, for payment in full of the then remaining unpaid principal amount of this Class A-2a Note on a Distribution Date, then the Indenture Trustee, in the
name of and on behalf of the Issuer, shall notify the Person who was the Holder hereof as of the Record Date preceding such Distribution Date by notice mailed or transmitted by facsimile prior to such Distribution Date, and the amount then due and
payable shall be payable only upon presentation and surrender of this Class A-2a Note at the Indenture Trustee’s Corporate Trust Office or at the office of the Indenture Trustee’s agent
appointed for such purposes located in St. Paul, Minnesota. 
 The Issuer shall pay interest on overdue installments of interest at the Class A-2a Rate to the extent lawful. 
 As provided in the Indenture, the Notes may be redeemed, in
whole but not in part, in the manner and to the extent described in the Indenture and the Sale and Servicing Agreement. 
 As provided in
the Indenture, and subject to certain limitations set forth therein, the transfer of this Class A-2a Note may be registered on the Note Register upon surrender of this
Class A-2a Note for registration of transfer at the office or agency designated by the Issuer pursuant to the Indenture, duly endorsed by, or accompanied by a written instrument of transfer in form
satisfactory to the Indenture Trustee duly executed by, the Holder hereof or such Holder’s attorney duly authorized in writing, with such signature guaranteed by an “eligible guarantor institution” meeting the requirements of the Note
Registrar, and thereupon one or more new Class A-2a Notes in any authorized denomination and in the same aggregate principal amount will be issued to the designated transferee or transferees. No service
charge will be charged for any registration of transfer or exchange of this Class A-2a Note, but the transferor may be required to pay a sum sufficient to cover any tax or other governmental charge that
may be imposed in connection with any such registration of transfer or exchange. 
 Each Noteholder or Note Owner, by its acceptance of a
Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and agrees that no recourse may be taken, directly or indirectly, with respect to the obligations of the Issuer or the Indenture Trustee on the Notes or under the
Indenture or any certificate or other writing delivered in connection therewith against (i) the Indenture Trustee or the Owner Trustee, each in its individual capacity, (ii) any holder of a beneficial interest in the Issuer or
(iii) any partner, owner, beneficiary, agent, officer, director or employee of the Indenture Trustee or the Owner Trustee, each in its individual capacity, or any holder of a beneficial interest in the Issuer, the Owner Trustee or the Indenture
Trustee or any successor or assign of the Indenture Trustee or the Owner Trustee, each in its individual capacity, except as any such Person may have expressly agreed and except that any such partner, owner or beneficiary shall be fully liable, to
the extent provided by applicable law, for any unpaid consideration for stock, unpaid capital contribution for stock, unpaid capital contribution or failure to pay any installment or call owing to such entity. 

Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and
agrees that such Noteholder or Note Owner shall not at any time institute against the Depositor or the Issuer, or join in any institution against the Depositor or the Issuer of, any bankruptcy, reorganization, arrangement, insolvency or


  
 Ex. A-2a-5 








 
liquidation proceedings under any United States federal or State bankruptcy or similar law in connection with any obligations relating to the Notes, the Certificates, the Indenture or any of the
other Transaction Documents. 
 Each Noteholder or Note Owner, by its acceptance of this Note other than a Retained Note or, in the case of
a Note Owner, a beneficial interest in this Note, represents and warrants that either (a) it is not acquiring such Note (or an interest therein) with the assets of any (i) “employee benefit plan” (as defined in Section 3(3) of
the Employee Retirement Income Security Act of 1974, as amended (“ERISA”)) subject to the fiduciary requirements of ERISA, (ii) “plan” described in Section 4975(e)(1) of the Internal Revenue Code of 1986, as amended
(the “Code”), including individual retirement accounts and Keogh plans, that is subject to the provisions of Section 4975 of the Code, (iii) entity whose underlying assets include “plan assets” within the meaning
of the United States Department of Labor Regulation 29 C.F.R. Section 2510.3-101, as modified by Section 3(42) of ERISA, by reason of an employee benefit plan’s or plan’s investment in such
entity or (iv) employee benefit plan or arrangement not subject to Title I of ERISA or Section 4975 of the Code; or (b) (i) the acquisition and holding of such Note will not constitute or result in a
non-exempt “prohibited transaction” under Section 406 of ERISA or Section 4975 of the Code or a violation of any substantially similar applicable law and (ii) certain other
requirements are satisfied, if applicable, as set forth in Section 2.5(k) of the Indenture. 
 Each Noteholder or Note Owner, by its
acceptance of this Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees to provide to the Indenture Trustee, any Paying Agent or the Issuer, upon its request, the Noteholder Tax Identification Information and, to the
extent FATCA Withholding Tax is applicable, the Noteholder FATCA Information. In addition, each Noteholder or Note Owner, by its acceptance of this Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees that the Indenture
Trustee has the right to withhold any amounts of interest (properly withholdable under law and without any corresponding gross-up) payable to a Noteholder or holder of an interest in a Note that fails to
comply with the requirements of the preceding sentence. 
 The Issuer has entered into the Indenture and this
Class A-2a Note is issued with the intention that, for federal, State and local income, and franchise tax purposes, the Notes (other than any Retained Notes) will qualify as indebtedness of the Issuer
secured by the Trust Estate. Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, agrees to treat the Notes (other than any Retained Notes) for federal, State and local income,
single business and franchise tax purposes as indebtedness of the Issuer. 
 Prior to the due presentment for registration of transfer of
this Class A-2a Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the Indenture Trustee may treat the Person in whose name this Class A-2a
Note (as of the day of determination or as of such other date as may be specified in the Indenture) is registered as the owner hereof for all purposes, whether or not this Class A-2a Note shall be
overdue, and none of the Issuer, the Indenture Trustee or any such agent shall be affected by notice to the contrary. 
 The Indenture
permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain exceptions therein provided, to amend or waive from time to time certain 

  
 Ex. A-2a-6 








 
terms and conditions set forth in the Indenture without the consent of the Holders of the Notes. The Indenture also permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee,
with certain exceptions as therein provided, to amend or waive from time to time certain terms and conditions set forth in the Indenture with the consent of the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling
Class. The Indenture also permits the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class, on behalf of the Holders of all the Notes, to waive compliance by the Issuer with certain provisions of the Indenture
and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holders of not less than 51% of the Note Balance of the Controlling Class or the Holder of this
Class A-2a Note (or any one or more Predecessor Notes) shall be conclusive and binding on such Holder and on all future Holders of this Class A-2a Note and of
any Class A-2a Note issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof whether or not notation of such consent or waiver is made upon this Class A-2a Note. 
 The term “Issuer”, as used in this Note, includes any successor to the
Issuer under the Indenture. 
 The Indenture permits the Issuer, under certain circumstances, to consolidate or merge with or into another
Person, subject to the rights of the Indenture Trustee and the Holders of Notes under the Indenture. 
 The Notes are issuable only in
registered form in denominations as provided in the Indenture, subject to certain limitations therein set forth. 
 THIS CLASS A-2A NOTE AND THE INDENTURE SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER AND THEREUNDER SHALL BE DETERMINED IN ACCORDANCE
WITH SUCH LAWS WITHOUT GIVING EFFECT TO THE CONFLICTS OF LAWS PROVISIONS THEREOF WHICH MAY REQUIRE THE APPLICATION OF THE LAWS OF ANY OTHER JURISDICTION (OTHER THAN SECTION 5-1401 OF THE NEW YORK GENERAL
OBLIGATIONS LAW). 
 No reference herein to the Indenture, and no provision of this Note or of the Indenture, shall alter or impair the
obligation of the Issuer, which is absolute and unconditional, to pay the principal of and interest on this Class A-2a Note at the times, place and rate, and in the coin or currency, herein prescribed.

 Anything herein to the contrary notwithstanding, except as expressly provided in the Transaction Documents, none of U.S. Bank National
Association, in its individual capacity, Wilmington Trust, National Association, in its individual capacity, any holder of a beneficial interest in the Issuer, or any of their respective partners, beneficiaries, agents, officers, directors,
employees or successors or assigns shall be personally liable for, nor shall recourse be had to any of them for, the payment of principal of or interest on this Class A-2a Note or the performance of, or
omission to perform, any of the covenants, obligations or indemnifications contained in the Indenture. The Holder of this Note, by its acceptance hereof, agrees that, except as expressly provided in the Transaction Documents, in the case of an Event
of Default under the Indenture, 

  
 Ex. A-2a-7 








 
the Holder shall have no claim against any of the foregoing for any deficiency, loss or claim resulting therefrom; provided, however, that nothing contained herein shall be taken to prevent
recourse to, or enforcement against, the assets of the Issuer for any and all liabilities, obligations and undertakings contained in the Indenture or in this Class A-2a Note. 

  
 Ex. A-2a-8 








 ASSIGNMENT 

SOCIAL SECURITY NUMBER 
 OR OTHER IDENTIFICATION 

NUMBER OF ASSIGNEE:
                                         
            

FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto     
                                         
                            
  

 
 (name and address of assignee) 

the within Note and all rights thereunder, and hereby irrevocably constitutes and appoints
                                , attorney, to transfer said Note on the Note
Register, with full power of substitution in the premises. 
 Dated:
                     
  

	
	                                      
                                         
     */
	
	Signature Guaranteed:
	
	                                      
                                         
     */


  

	*/	NOTICE: The signature to this assignment must correspond with the name of the registered owner as it appears on the face of the within Note in every particular, without alteration, enlargement or any change whatsoever.
Such signature must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar. 


  
 Ex. A-2a-9 








 Exhibit A-2b 

Form of Class A-2b Note 

UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER
OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE & CO., HAS AN INTEREST HEREIN. 
 THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING
PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. 
  

			
	REGISTERED	  	$[            ]
		
	NO. R-[    ]	  	CUSIP NO. 14314A AH2

 CARMAX AUTO OWNER TRUST 2018-1 

LIBOR PLUS 0.15% CLASS A-2b ASSET-BACKED NOTE 

CarMax Auto Owner Trust 2018-1, a statutory trust organized and existing under the laws of the State
of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to Cede & Co., or its registered assigns, the principal sum of [        ] DOLLARS hereto
payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-2b Notes pursuant to Section 2.8 of
the Indenture dated as of January 1, 2018 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank National Association, a national banking association,
as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that principal of this Class A-2b Note will not be due and payable until the Class A-1 Notes have been paid in full; and, provided further, that, if not paid prior to such date, the unpaid principal amount of this Class A-2b
Note shall be due and payable on the earlier of the May 17, 2021 Distribution Date (the “Class A-2b Final Distribution Date”) and the Redemption Date, if any, pursuant
to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. 

The Issuer shall pay interest on this Class A-2b Note at a rate based on LIBOR determined in
accordance with the terms of the Indenture plus 0.15% per annum shown above on each Distribution Date (provided, that for any Accrual Period for which the sum of LIBOR plus 0.15% is less than 0.00%, the interest rate shall be deemed to be 0.00%),
until the principal of this Class A-2b Note is paid or made available for payment, on the principal amount of this Class A-2b


  
 Ex. A-2b-1 








 
Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in
Section 3.1 of the Indenture. Interest on this Class A-2b Note shall accrue for each Distribution Date from and including the preceding Distribution Date (or, in the case of the initial Distribution
Date or if no interest has been paid, from and including the Closing Date) to but excluding such Distribution Date. Interest shall be computed on the basis of actual days elapsed and a 360-day year. Interest
on this Class A-2b Note on each Distribution Date shall equal one-twelfth of the product of (i) the rate per annum shown above and (ii) the principal
amount of this Class A-2b Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date); provided, however,
that the interest payable on this Class A-2b Note on February 15, 2018 shall equal $        . The principal of and interest on this Class A-2b Note shall be paid in the manner specified on the reverse hereof. 
 “Distribution
Date” means the 15th day of each month or, if such 15th day is not a Business Day, the following Business Day, commencing on February 15, 2018. 

The principal of and interest on this Class A-2b Note are payable in such coin or currency of the
United States as at the time of payment is legal tender for payment of public and private debts. All payments made by the Issuer with respect to this Class A-2b Note shall be applied first to interest due
and payable on this Class A-2b Note as provided above and then to the unpaid principal of this Class A-2b Note. 

Reference is hereby made to the further provisions of this Class A-2b Note set forth on the
reverse hereof, which further provisions shall for all purposes have the same effect as if fully set forth on the face of this Class A-2b Note. 

Unless the certificate of authentication hereon has been executed by an authorized officer of the Indenture Trustee, by manual or facsimile
signature, this Class A-2b Note shall not entitle the Holder hereof to any benefit under the Indenture or be valid for any purpose. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 Ex. A-2b-2 








 IN WITNESS WHEREOF, the Issuer has caused this
Class A-2b Note to be duly executed as of the date set forth below. 
 Dated: January 24, 2018 

 

			
	CARMAX AUTO OWNER TRUST 2018-1
		
	By:	 	WILMINGTON TRUST, NATIONAL ASSOCIATION,
not in its individual capacity but solely
as Owner Trustee
		
	By:	 	  

	Name:	 	
	Title:	 	


 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

This is one of the Class A-2b Notes designated above and referred to in the within-mentioned
Indenture. 
 Dated: January 24, 2018 
  

			
	U.S. BANK NATIONAL ASSOCIATION,
not in its individual capacity but solely as Indenture Trustee
		
	By:	 	
                     
                                         
       

	Name:	 	
	Title:	 	



  
 Ex. A-2b-3 








 [REVERSE OF CLASS A-2b NOTE] 

This Class A-2b Note is one of a duly authorized issue of Notes of the Issuer, designated as its
LIBOR plus 0.15% Class A-2b Asset-backed Notes, which, together with the 1.70000% Class A-1 Asset-backed Notes, the 2.23%
Class A-2a Asset-backed Notes, the 2.48% Class A-3 Asset-backed Notes, the 2.64% Class A-4 Asset-backed Notes, the
2.83% Class B Asset-backed Notes, the 2.95% Class C Asset-backed Notes and the 3.37% Class D Asset-backed Notes (collectively, the “Notes”), are issued under the Indenture, to which Indenture and all indentures
supplemental thereto reference is hereby made for a statement of the respective rights and obligations thereunder of the Issuer, the Indenture Trustee and the Holders of the Notes. The Notes are subject to all terms of the Indenture. 

The Class A-2b Notes are and shall be equally and ratably secured by the collateral pledged as
security therefor as provided in the Indenture. The Class A-2b Notes are subordinated to the Class A-1 Notes to the extent set forth in the Indenture and the
Sale and Servicing Agreement. The Class A-3 Notes, the Class A-4 Notes, the Class B Notes, the Class C Notes and the Class D Notes are
subordinated to the Class A-2b Notes to the extent set forth in the Indenture and the Sale and Servicing Agreement. The Class A-2b Notes and the Class A-2a Notes are pari passu to the extent set forth in the Indenture and the Sale and Servicing Agreement. 

As described above, the entire unpaid principal amount of this Class A-2b Note shall be due and
payable on the earlier of the Class A-2b Final Distribution Date and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Notwithstanding the foregoing, the entire unpaid principal
amount of the Notes, together with accrued and unpaid interest thereon through the date of acceleration, shall be due and payable on the date on which an Event of Default shall have occurred and be continuing if the Indenture Trustee or the Holders
of Notes evidencing not less than 51% of the Note Balance of the Controlling Class have declared the Notes to be immediately due and payable in the manner provided in Section 5.2 of the Indenture. All principal payments on the Class A-2b Notes shall be made pro rata to the Holders entitled thereto if the Notes have been declared immediately due and payable. 

Payments of interest on this Class A-2b Note due and payable on any Distribution Date, together
with the installment of principal, if any, due and payable on such Distribution Date, to the extent not in full payment of this Class A-2b Note, shall be made by check mailed to the Person whose name
appears as the Holder of this Class A-2b Note (or one or more Predecessor Notes) on the Note Register as of the close of business on the Record Date preceding such Distribution Date or by wire transfer in
immediately available funds to the account designated in writing to the Indenture Trustee by such Person at least five (5) Business Days prior to the related Record Date, except that with respect to
Class A-2b Notes registered on the Record Date in the name of the nominee of the Clearing Agency (initially, such nominee to be Cede & Co.), payments will be made by wire transfer in immediately
available funds to the account designated by such nominee. Such checks shall be mailed to the Person entitled thereto at the address of such Person as it appears on the Note Register as of such Record Date without requiring that this Class A-2b Note be submitted for notation of payment. Any reduction in the principal amount of this Class A-2b Note (or any one or more Predecessor Notes) effected
by any payments made on any Distribution Date shall be binding upon all future Holders of this Class A-2b Note and of 

  
 Ex. A-2b-4 








 
any Class A-2b Note issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof, whether or not noted hereon. If funds are
expected to be available, as provided in the Indenture, for payment in full of the then remaining unpaid principal amount of this Class A-2b Note on a Distribution Date, then the Indenture Trustee, in the
name of and on behalf of the Issuer, shall notify the Person who was the Holder hereof as of the Record Date preceding such Distribution Date by notice mailed or transmitted by facsimile prior to such Distribution Date, and the amount then due and
payable shall be payable only upon presentation and surrender of this Class A-2b Note at the Indenture Trustee’s Corporate Trust Office or at the office of the Indenture Trustee’s agent
appointed for such purposes located in St. Paul, Minnesota. 
 The Issuer shall pay interest on overdue installments of interest at the Class A-2b Rate to the extent lawful. 
 As provided in the Indenture, the Notes may be redeemed, in
whole but not in part, in the manner and to the extent described in the Indenture and the Sale and Servicing Agreement. 
 As provided in
the Indenture, and subject to certain limitations set forth therein, the transfer of this Class A-2b Note may be registered on the Note Register upon surrender of this
Class A-2b Note for registration of transfer at the office or agency designated by the Issuer pursuant to the Indenture, duly endorsed by, or accompanied by a written instrument of transfer in form
satisfactory to the Indenture Trustee duly executed by, the Holder hereof or such Holder’s attorney duly authorized in writing, with such signature guaranteed by an “eligible guarantor institution” meeting the requirements of the Note
Registrar, and thereupon one or more new Class A-2b Notes in any authorized denomination and in the same aggregate principal amount will be issued to the designated transferee or transferees. No service
charge will be charged for any registration of transfer or exchange of this Class A-2b Note, but the transferor may be required to pay a sum sufficient to cover any tax or other governmental charge that
may be imposed in connection with any such registration of transfer or exchange. 
 Each Noteholder or Note Owner, by its acceptance of a
Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and agrees that no recourse may be taken, directly or indirectly, with respect to the obligations of the Issuer or the Indenture Trustee on the Notes or under the
Indenture or any certificate or other writing delivered in connection therewith against (i) the Indenture Trustee or the Owner Trustee, each in its individual capacity, (ii) any holder of a beneficial interest in the Issuer or
(iii) any partner, owner, beneficiary, agent, officer, director or employee of the Indenture Trustee or the Owner Trustee, each in its individual capacity, or any holder of a beneficial interest in the Issuer, the Owner Trustee or the Indenture
Trustee or any successor or assign of the Indenture Trustee or the Owner Trustee, each in its individual capacity, except as any such Person may have expressly agreed and except that any such partner, owner or beneficiary shall be fully liable, to
the extent provided by applicable law, for any unpaid consideration for stock, unpaid capital contribution for stock, unpaid capital contribution or failure to pay any installment or call owing to such entity. 

Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and
agrees that such Noteholder or Note Owner shall not at any time institute against the Depositor or the Issuer, or join in any institution against the Depositor or the Issuer of, any bankruptcy, reorganization, arrangement, insolvency or


  
 Ex. A-2b-5 








 
liquidation proceedings under any United States federal or State bankruptcy or similar law in connection with any obligations relating to the Notes, the Certificates, the Indenture or any of the
other Transaction Documents. 
 Each Noteholder or Note Owner, by its acceptance of this Note other than a Retained Note or, in the case of
a Note Owner, a beneficial interest in this Note, represents and warrants that either (a) it is not acquiring such Note (or an interest therein) with the assets of any (i) “employee benefit plan” (as defined in Section 3(3) of
the Employee Retirement Income Security Act of 1974, as amended (“ERISA”)) subject to the fiduciary requirements of ERISA, (ii) “plan” described in Section 4975(e)(1) of the Internal Revenue Code of 1986, as amended
(the “Code”), including individual retirement accounts and Keogh plans, that is subject to the provisions of Section 4975 of the Code, (iii) entity whose underlying assets include “plan assets” within the meaning
of the United States Department of Labor Regulation 29 C.F.R. Section 2510.3-101, as modified by Section 3(42) of ERISA, by reason of an employee benefit plan’s or plan’s investment in such
entity or (iv) employee benefit plan or arrangement not subject to Title I of ERISA or Section 4975 of the Code; or (b) (i) the acquisition and holding of such Note will not constitute or result in a
non-exempt “prohibited transaction” under Section 406 of ERISA or Section 4975 of the Code or a violation of any substantially similar applicable law and (ii) certain other
requirements are satisfied, if applicable, as set forth in Section 2.5(k) of the Indenture. 
 Each Noteholder or Note Owner, by its
acceptance of this Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees to provide to the Indenture Trustee, any Paying Agent or the Issuer, upon its request, the Noteholder Tax Identification Information and, to the
extent FATCA Withholding Tax is applicable, the Noteholder FATCA Information. In addition, each Noteholder or Note Owner, by its acceptance of this Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees that the Indenture
Trustee has the right to withhold any amounts of interest (properly withholdable under law and without any corresponding gross-up) payable to a Noteholder or holder of an interest in a Note that fails to
comply with the requirements of the preceding sentence. 
 The Issuer has entered into the Indenture and this
Class A-2b Note is issued with the intention that, for federal, State and local income, and franchise tax purposes, the Notes (other than any Retained Notes) will qualify as indebtedness of the Issuer
secured by the Trust Estate. Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, agrees to treat the Notes (other than any Retained Notes) for federal, State and local income,
single business and franchise tax purposes as indebtedness of the Issuer. 
 Prior to the due presentment for registration of transfer of
this Class A-2b Note, the Issuer, the Indenture Trustee and any agent of the Issuer or the Indenture Trustee may treat the Person in whose name this Class A-2b
Note (as of the day of determination or as of such other date as may be specified in the Indenture) is registered as the owner hereof for all purposes, whether or not this Class A-2b Note shall be
overdue, and none of the Issuer, the Indenture Trustee or any such agent shall be affected by notice to the contrary. 
 The Indenture
permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain exceptions therein provided, to amend or waive from time to time certain 

  
 Ex. A-2b-6 








 
terms and conditions set forth in the Indenture without the consent of the Holders of the Notes. The Indenture also permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee,
with certain exceptions as therein provided, to amend or waive from time to time certain terms and conditions set forth in the Indenture with the consent of the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling
Class. The Indenture also permits the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class, on behalf of the Holders of all the Notes, to waive compliance by the Issuer with certain provisions of the Indenture
and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holders of not less than 51% of the Note Balance of the Controlling Class or the Holder of this
Class A-2b Note (or any one or more Predecessor Notes) shall be conclusive and binding on such Holder and on all future Holders of this Class A-2b Note and of
any Class A-2b Note issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof whether or not notation of such consent or waiver is made upon this Class A-2b Note. 
 The term “Issuer”, as used in this Note, includes any successor to the
Issuer under the Indenture. 
 The Indenture permits the Issuer, under certain circumstances, to consolidate or merge with or into another
Person, subject to the rights of the Indenture Trustee and the Holders of Notes under the Indenture. 
 The Notes are issuable only in
registered form in denominations as provided in the Indenture, subject to certain limitations therein set forth. 
 THIS CLASS A-2B NOTE AND THE INDENTURE SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER AND THEREUNDER SHALL BE DETERMINED IN ACCORDANCE
WITH SUCH LAWS WITHOUT GIVING EFFECT TO THE CONFLICTS OF LAWS PROVISIONS THEREOF WHICH MAY REQUIRE THE APPLICATION OF THE LAWS OF ANY OTHER JURISDICTION (OTHER THAN SECTION 5-1401 OF THE NEW YORK GENERAL
OBLIGATIONS LAW). 
 No reference herein to the Indenture, and no provision of this Note or of the Indenture, shall alter or impair the
obligation of the Issuer, which is absolute and unconditional, to pay the principal of and interest on this Class A-2b Note at the times, place and rate, and in the coin or currency, herein prescribed.

 Anything herein to the contrary notwithstanding, except as expressly provided in the Transaction Documents, none of U.S. Bank National
Association, in its individual capacity, Wilmington Trust, National Association, in its individual capacity, any holder of a beneficial interest in the Issuer, or any of their respective partners, beneficiaries, agents, officers, directors,
employees or successors or assigns shall be personally liable for, nor shall recourse be had to any of them for, the payment of principal of or interest on this Class A-2b Note or the performance of, or
omission to perform, any of the covenants, obligations or indemnifications contained in the Indenture. The Holder of this Note, by its acceptance hereof, agrees that, except as expressly provided in the Transaction Documents, in the case of an Event
of Default under the Indenture, 

  
 Ex. A-2b-7 








 
the Holder shall have no claim against any of the foregoing for any deficiency, loss or claim resulting therefrom; provided, however, that nothing contained herein shall be taken to prevent
recourse to, or enforcement against, the assets of the Issuer for any and all liabilities, obligations and undertakings contained in the Indenture or in this Class A-2b Note. 

  
 Ex. A-2b-8 








 ASSIGNMENT 

SOCIAL SECURITY NUMBER 
 OR OTHER IDENTIFICATION 

NUMBER OF ASSIGNEE:
                                        

 FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto
                                         
                                

 
  

(name and address of assignee) 
 the within Note
and all rights thereunder, and hereby irrevocably constitutes and appoints
                                , attorney, to transfer said Note on the Note
Register, with full power of substitution in the premises. 
 Dated:
                     
  

	
	
                   
                                         
                        */

	
	 Signature Guaranteed:

	
	                                     
                                         
      */


  

	*/	NOTICE: The signature to this assignment must correspond with the name of the registered owner as it appears on the face of the within Note in every particular, without alteration, enlargement or any change whatsoever.
Such signature must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar. 


  
 Ex. A-2b-9 








 Exhibit A-3 

Form of Class A-3 Note 

UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER
OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE & CO., HAS AN INTEREST HEREIN. 
 THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING
PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. 
  

			
	REGISTERED	  	$[            ]
		
	NO. R-[        ]	  	CUSIP NO. 14314A AC3

 CARMAX AUTO OWNER TRUST 2018-1 

2.48% CLASS A-3 ASSET-BACKED NOTE 

CarMax Auto Owner Trust 2018-1, a statutory trust organized and existing under the laws of the State
of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to Cede & Co., or its registered assigns, the principal sum of [        ] DOLLARS hereto
payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-3 Notes pursuant to Section 2.8 of
the Indenture dated as of January 1, 2018 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank National Association, a national banking association,
as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, except under certain limited circumstances described in the Indenture, principal of this
Class A-3 Note will not be due and payable until the Class A-1 Notes, the Class A-2a Notes and the Class A-2b Notes have been paid in full; and, provided further, that, if not paid prior to such date, the unpaid principal amount of this Class A-3
Note shall be due and payable on the earlier of the November 15, 2022 Distribution Date (the “Class A-3 Final Distribution Date”) and the Redemption Date, if any,
pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. 

The Issuer shall pay interest on this Class A-3 Note at the rate per annum shown above on each
Distribution Date, until the principal of this Class A-3 Note is paid or made available for payment, on the principal amount of this Class A-3 Note outstanding
on the preceding 

  
 Ex. A-3-1 








 
Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture.
Interest on this Class A-3 Note shall accrue for each Distribution Date from and including the 15th day of the preceding month (or, in the case of the initial Distribution Date or if no interest has been
paid, from and including the Closing Date) to but excluding the 15th day of the month in which such Distribution Date occurs. Interest shall be computed on the basis of a 360-day year consisting of twelve 30-day months. Interest on this Class A-3 Note on each Distribution Date shall equal one-twelfth of the product of (i) the
rate per annum shown above and (ii) the principal amount of this Class A-3 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding
Distribution Date); provided, however, that the interest payable on this Class A-3 Note on February 15, 2018 shall equal $        . The principal
of and interest on this Class A-3 Note shall be paid in the manner specified on the reverse hereof. 

“Distribution Date” means the 15th day of each month or, if such 15th day is not a Business Day, the following Business Day,
commencing on February 15, 2018. 
 The principal of and interest on this Class A-3 Note
are payable in such coin or currency of the United States as at the time of payment is legal tender for payment of public and private debts. All payments made by the Issuer with respect to this Class A-3
Note shall be applied first to interest due and payable on this Class A-3 Note as provided above and then to the unpaid principal of this Class A-3 Note. 

Reference is hereby made to the further provisions of this Class A-3 Note set forth on the
reverse hereof, which further provisions shall for all purposes have the same effect as if fully set forth on the face of this Class A-3 Note. 

Unless the certificate of authentication hereon has been executed by an authorized officer of the Indenture Trustee, by manual or facsimile
signature, this Class A-3 Note shall not entitle the Holder hereof to any benefit under the Indenture or be valid for any purpose. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 Ex. A-3-2 








 IN WITNESS WHEREOF, the Issuer has caused this
Class A-3 Note to be duly executed as of the date set forth below. 
 Dated: January 24, 2018 

 

			
	CARMAX AUTO OWNER TRUST 2018-1
		
	By:	 	WILMINGTON TRUST, NATIONAL ASSOCIATION,
		 	not in its individual capacity but solely as Owner Trustee
	 
		
	By:	 	  

	Name:	 	
	Title:	 	


 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

This is one of the Class A-3 Notes designated above and referred to in the within-mentioned
Indenture. 
 Dated: January 24, 2018 
  

			
	U.S. BANK NATIONAL ASSOCIATION,
not in its individual capacity but solely as Indenture Trustee
		
	By:	 	
                     
                                         
             

	Name:	 	
	Title:	 	



  
 Ex. A-3-3 








 [REVERSE OF CLASS A-3 NOTE] 

This Class A-3 Note is one of a duly authorized issue of Notes of the Issuer, designated as its
2.48% Class A-3 Asset-backed Notes, which, together with the 1.70000% Class A-1 Asset-backed Notes, the 2.23%
Class A-2a Asset-backed Notes, the LIBOR plus 0.15% Class A-2b Asset-backed Notes, the 2.64% Class A-4
Asset-backed Notes, the 2.83% Class B Asset-backed Notes, the 2.95% Class C Asset-backed Notes and the 3.37% Class D Asset-backed Notes (collectively, the “Notes”), are issued under the Indenture, to which Indenture
and all indentures supplemental thereto reference is hereby made for a statement of the respective rights and obligations thereunder of the Issuer, the Indenture Trustee and the Holders of the Notes. The Notes are subject to all terms of the
Indenture. 
 The Class A-3 Notes are and shall be equally and ratably secured by the
collateral pledged as security therefor as provided in the Indenture. The Class A-3 Notes are subordinated to the Class A-1 Notes, the Class A-2a Notes and the Class A-2b Notes to the extent set forth in the Indenture and the Sale and Servicing Agreement. The
Class A-4 Notes, the Class B Notes, the Class C Notes and the Class D Notes are subordinated to the Class A-3 Notes to the extent set forth in
the Indenture and the Sale and Servicing Agreement. 
 As described above, the entire unpaid principal amount of this Class A-3 Note shall be due and payable on the earlier of the Class A-3 Final Distribution Date and the Redemption Date, if any, pursuant to Section 10.1 of the
Indenture. Notwithstanding the foregoing, the entire unpaid principal amount of the Notes, together with accrued and unpaid interest thereon through the date of acceleration, shall be due and payable on the date on which an Event of Default shall
have occurred and be continuing if the Indenture Trustee or the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class have declared the Notes to be immediately due and payable in the manner provided in
Section 5.2 of the Indenture. All principal payments on the Class A-3 Notes shall be made pro rata to the Holders entitled thereto if the Notes have been declared immediately due and payable. 

Payments of interest on this Class A-3 Note due and payable on any Distribution Date, together
with the installment of principal, if any, due and payable on such Distribution Date, to the extent not in full payment of this Class A-3 Note, shall be made by check mailed to the Person whose name
appears as the Holder of this Class A-3 Note (or one or more Predecessor Notes) on the Note Register as of the close of business on the Record Date preceding such Distribution Date or by wire transfer in
immediately available funds to the account designated in writing to the Indenture Trustee by such Person at least five (5) Business Days prior to the related Record Date, except that with respect to
Class A-3 Notes registered on the Record Date in the name of the nominee of the Clearing Agency (initially, such nominee to be Cede & Co.), payments will be made by wire transfer in immediately
available funds to the account designated by such nominee. Such checks shall be mailed to the Person entitled thereto at the address of such Person as it appears on the Note Register as of such Record Date without requiring that this Class A-3 Note be submitted for notation of payment. Any reduction in the principal amount of this Class A-3 Note (or any one or more Predecessor Notes) effected by
any payments made on any Distribution Date shall be binding upon all future Holders of this Class A-3 Note and of any Class A-3 Note issued upon the
registration of transfer hereof or in exchange hereof or in lieu hereof, whether or not noted hereon. If funds are expected to be available, as provided in the 

  
 Ex. A-3-4 








 
Indenture, for payment in full of the then remaining unpaid principal amount of this Class A-3 Note on a Distribution Date, then the Indenture
Trustee, in the name of and on behalf of the Issuer, shall notify the Person who was the Holder hereof as of the Record Date preceding such Distribution Date by notice mailed or transmitted by facsimile prior to such Distribution Date, and the
amount then due and payable shall be payable only upon presentation and surrender of this Class A-3 Note at the Indenture Trustee’s Corporate Trust Office or at the office of the Indenture
Trustee’s agent appointed for such purposes located in St. Paul, Minnesota. 
 The Issuer shall pay interest on overdue installments of
interest at the Class A-3 Rate to the extent lawful. 
 As provided in the Indenture, the Notes
may be redeemed, in whole but not in part, in the manner and to the extent described in the Indenture and the Sale and Servicing Agreement. 

As provided in the Indenture, and subject to certain limitations set forth therein, the transfer of this
Class A-3 Note may be registered on the Note Register upon surrender of this Class A-3 Note for registration of transfer at the office or agency designated by
the Issuer pursuant to the Indenture, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Indenture Trustee duly executed by, the Holder hereof or such Holder’s attorney duly authorized in writing,
with such signature guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar, and thereupon one or more new Class A-3 Notes in any authorized denomination
and in the same aggregate principal amount will be issued to the designated transferee or transferees. No service charge will be charged for any registration of transfer or exchange of this Class A-3
Note, but the transferor may be required to pay a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any such registration of transfer or exchange. 

Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and
agrees that no recourse may be taken, directly or indirectly, with respect to the obligations of the Issuer or the Indenture Trustee on the Notes or under the Indenture or any certificate or other writing delivered in connection therewith against
(i) the Indenture Trustee or the Owner Trustee, each in its individual capacity, (ii) any holder of a beneficial interest in the Issuer or (iii) any partner, owner, beneficiary, agent, officer, director or employee of the Indenture
Trustee or the Owner Trustee, each in its individual capacity, or any holder of a beneficial interest in the Issuer, the Owner Trustee or the Indenture Trustee or any successor or assign of the Indenture Trustee or the Owner Trustee, each in its
individual capacity, except as any such Person may have expressly agreed and except that any such partner, owner or beneficiary shall be fully liable, to the extent provided by applicable law, for any unpaid consideration for stock, unpaid capital
contribution for stock, unpaid capital contribution or failure to pay any installment or call owing to such entity. 
 Each Noteholder or
Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and agrees that such Noteholder or Note Owner shall not at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy, reorganization, arrangement, insolvency or liquidation proceedings under any United States federal or State bankruptcy or similar law in connection with any obligations relating to
the Notes, the Certificates, the Indenture or any of the other Transaction Documents. 

  
 Ex. A-3-5 








 Each Noteholder or Note Owner, by its acceptance of this Note other than a Retained Note or, in
the case of a Note Owner, a beneficial interest in this Note, represents and warrants that either (a) it is not acquiring such Note (or an interest therein) with the assets of any (i) “employee benefit plan” (as defined in
Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”)) subject to the fiduciary requirements of ERISA, (ii) “plan” described in Section 4975(e)(1) of the Internal Revenue Code
of 1986, as amended (the “Code”), including individual retirement accounts and Keogh plans, that is subject to the provisions of Section 4975 of the Code, (iii) entity whose underlying assets include “plan
assets” within the meaning of the United States Department of Labor Regulation 29 C.F.R. Section 2510.3-101, as modified by Section 3(42) of ERISA, by reason of an employee benefit plan’s
or plan’s investment in such entity or (iv) employee benefit plan or arrangement not subject to Title I of ERISA or Section 4975 of the Code; or (b) (i) the acquisition and holding of such Note will not constitute or result in a non-exempt “prohibited transaction” under Section 406 of ERISA or Section 4975 of the Code or a violation of any substantially similar applicable law and (ii) certain other requirements are
satisfied, if applicable, as set forth in Section 2.5(k) of the Indenture. 
 Each Noteholder or Note Owner, by its acceptance of this
Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees to provide to the Indenture Trustee, any Paying Agent or the Issuer, upon its request, the Noteholder Tax Identification Information and, to the extent FATCA
Withholding Tax is applicable, the Noteholder FATCA Information. In addition, each Noteholder or Note Owner, by its acceptance of this Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees that the Indenture Trustee has
the right to withhold any amounts of interest (properly withholdable under law and without any corresponding gross-up) payable to a Noteholder or holder of an interest in a Note that fails to comply with the
requirements of the preceding sentence. 
 The Issuer has entered into the Indenture and this Class A-3 Note is issued with the
intention that, for federal, State and local income, and franchise tax purposes, the Notes (other than any Retained Notes) will qualify as indebtedness of the Issuer secured by the Trust Estate. Each Noteholder or Note Owner, by its acceptance of a
Note or, in the case of a Note Owner, a beneficial interest in a Note, agrees to treat the Notes (other than any Retained Notes) for federal, State and local income, single business and franchise tax purposes as indebtedness of the Issuer. 

Prior to the due presentment for registration of transfer of this Class A-3 Note, the Issuer, the
Indenture Trustee and any agent of the Issuer or the Indenture Trustee may treat the Person in whose name this Class A-3 Note (as of the day of determination or as of such other date as may be specified
in the Indenture) is registered as the owner hereof for all purposes, whether or not this Class A-3 Note shall be overdue, and none of the Issuer, the Indenture Trustee or any such agent shall be affected
by notice to the contrary. 
 The Indenture permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain
exceptions therein provided, to amend or waive from time to time certain terms and conditions set forth in the Indenture without the consent of the Holders of the Notes. 

  
 Ex. A-3-6 








 The Indenture also permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain
exceptions as therein provided, to amend or waive from time to time certain terms and conditions set forth in the Indenture with the consent of the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class. The
Indenture also permits the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class, on behalf of the Holders of all the Notes, to waive compliance by the Issuer with certain provisions of the Indenture and certain
past defaults under the Indenture and their consequences. Any such consent or waiver by the Holders of not less than 51% of the Note Balance of the Controlling Class or the Holder of this Class A-3
Note (or any one or more Predecessor Notes) shall be conclusive and binding on such Holder and on all future Holders of this Class A-3 Note and of any
Class A-3 Note issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof whether or not notation of such consent or waiver is made upon this
Class A-3 Note. 
 The term “Issuer”, as used in this Note, includes any successor to
the Issuer under the Indenture. 
 The Indenture permits the Issuer, under certain circumstances, to consolidate or merge with or into
another Person, subject to the rights of the Indenture Trustee and the Holders of Notes under the Indenture. 
 The Notes are issuable only
in registered form in denominations as provided in the Indenture, subject to certain limitations therein set forth. 
 THIS CLASS A-3 NOTE AND THE INDENTURE SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER AND THEREUNDER SHALL BE DETERMINED IN ACCORDANCE
WITH SUCH LAWS WITHOUT GIVING EFFECT TO THE CONFLICTS OF LAWS PROVISIONS THEREOF WHICH MAY REQUIRE THE APPLICATION OF THE LAWS OF ANY OTHER JURISDICTION (OTHER THAN SECTION 5-1401 OF THE NEW YORK GENERAL
OBLIGATIONS LAW). 
 No reference herein to the Indenture, and no provision of this Note or of the Indenture, shall alter or impair the
obligation of the Issuer, which is absolute and unconditional, to pay the principal of and interest on this Class A-3 Note at the times, place and rate, and in the coin or currency, herein prescribed.

 Anything herein to the contrary notwithstanding, except as expressly provided in the Transaction Documents, none of U.S. Bank National
Association, in its individual capacity, Wilmington Trust, National Association, in its individual capacity, any holder of a beneficial interest in the Issuer, or any of their respective partners, beneficiaries, agents, officers, directors,
employees or successors or assigns shall be personally liable for, nor shall recourse be had to any of them for, the payment of principal of or interest on this Class A-3 Note or the performance of, or
omission to perform, any of the covenants, obligations or indemnifications contained in the Indenture. The Holder of this Note, by its acceptance hereof, agrees that, except as expressly provided in the Transaction Documents, in the case of an Event
of Default under the Indenture, the Holder shall have no claim against any of the foregoing for any deficiency, loss or claim 

  
 Ex. A-3-7 








 
resulting therefrom; provided, however, that nothing contained herein shall be taken to prevent recourse to, or enforcement against, the assets of the Issuer for any and all liabilities,
obligations and undertakings contained in the Indenture or in this Class A-3 Note. 

  
 Ex. A-3-8 








 ASSIGNMENT 

SOCIAL SECURITY NUMBER 
 OR OTHER IDENTIFICATION 

NUMBER OF ASSIGNEE:
                                        


FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto     
                                         
                              

 
  

(name and address of assignee) 
 the within Note
and all rights thereunder, and hereby irrevocably constitutes and appoints
                                , attorney, to transfer said Note on the Note
Register, with full power of substitution in the premises. 
 Dated:
                     
  

	
	                                      
                                         
    */
	
	Signature Guaranteed:
	
	                                      
                                         
    */


  

	*/	NOTICE: The signature to this assignment must correspond with the name of the registered owner as it appears on the face of the within Note in every particular, without alteration, enlargement or any change whatsoever.
Such signature must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar. 


  
 Ex. A-3-9 








 Exhibit A-4 

Form of Class A-4 Note 

UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER
OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE & CO., HAS AN INTEREST HEREIN. 
 THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING
PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS THAN THE AMOUNT SHOWN ON THE FACE HEREOF. 
  

			
	REGISTERED	  	$[            ]
		
	NO. R-[    ]	  	CUSIP NO. 14314A AD1

 CARMAX AUTO OWNER TRUST 2018-1 

2.64% CLASS A-4 ASSET-BACKED NOTE 

CarMax Auto Owner Trust 2018-1, a statutory trust organized and existing under the laws of the State
of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to Cede & Co., or its registered assigns, the principal sum of [        ] DOLLARS hereto
payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class A-4 Notes pursuant to Section 2.8 of
the Indenture dated as of January 1, 2018 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank National Association, a national banking association,
as Indenture Trustee (in such capacity, the “Indenture Trustee”); provided, however, that, except under certain limited circumstances described in the Indenture, principal of this
Class A-4 Note will not be due and payable until the Class A-1 Notes, the Class A-2a Notes, the Class A-2b Notes and the Class A-3 Notes have been paid in full; and, provided further, that, if not paid prior to such date, the unpaid principal
amount of this Class A-4 Note shall be due and payable on the earlier of the June 15, 2023 Distribution Date (the “Class A-4 Final
Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are defined in Article I of the Indenture, which also contains rules as to construction that
shall be applicable hereto. 
 The Issuer shall pay interest on this Class A-4 Note at the rate
per annum shown above on each Distribution Date, until the principal of this Class A-4 Note is paid or made available for payment, on the principal amount of this
Class A-4 Note outstanding on the preceding 

  
 Ex. A-4-1 








 
Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture.
Interest on this Class A-4 Note shall accrue for each Distribution Date from and including the 15th day of the preceding month (or, in the case of the initial Distribution Date or if no interest has been
paid, from and including the Closing Date) to but excluding the 15th day of the month in which such Distribution Date occurs. Interest shall be computed on the basis of a 360-day year consisting of twelve 30-day months. Interest on this Class A-4 Note on each Distribution Date shall equal one-twelfth of the product of (i) the
rate per annum shown above and (ii) the principal amount of this Class A-4 Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding
Distribution Date); provided, however, that the interest payable on this Class A-4 Note on February 15, 2018 shall equal $        . The principal
of and interest on this Class A-4 Note shall be paid in the manner specified on the reverse hereof. 

“Distribution Date” means the 15th day of each month or, if such 15th day is not a Business Day, the following Business Day,
commencing on February 15, 2018. 
 The principal of and interest on this Class A-4 Note
are payable in such coin or currency of the United States as at the time of payment is legal tender for payment of public and private debts. All payments made by the Issuer with respect to this Class A-4
Note shall be applied first to interest due and payable on this Class A-4 Note as provided above and then to the unpaid principal of this Class A-4 Note. 

Reference is hereby made to the further provisions of this Class A-4 Note set forth on the
reverse hereof, which further provisions shall for all purposes have the same effect as if fully set forth on the face of this Class A-4 Note. 

Unless the certificate of authentication hereon has been executed by an authorized officer of the Indenture Trustee, by manual or facsimile
signature, this Class A-4 Note shall not entitle the Holder hereof to any benefit under the Indenture or be valid for any purpose. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 Ex. A-4-2 








 IN WITNESS WHEREOF, the Issuer has caused this
Class A-4 Note to be duly executed as of the date set forth below. 
 Dated: January 24, 2018 

 

			
	CARMAX AUTO OWNER TRUST 2018-1
		
	By:	 	WILMINGTON TRUST, NATIONAL ASSOCIATION,
		 	not in its individual capacity but solely
		 	as Owner Trustee
		
	By:	 	                                     
                                         
           
	Name:	 	
	Title:	 	


 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

This is one of the Class A-4 Notes designated above and referred to in the within-mentioned
Indenture. 
 Dated: January 24, 2018 
  

			
	U.S. BANK NATIONAL ASSOCIATION,
not in its individual capacity but solely as Indenture Trustee
		
	By:	 	                                      
                                         
          
	Name:	 	
	Title:	 	



  
 Ex. A-4-3 








 [REVERSE OF CLASS A-4 NOTE] 

This Class A-4 Note is one of a duly authorized issue of Notes of the Issuer, designated as its
2.64% Class A-4 Asset-backed Notes, which, together with the 1.70000% Class A-1 Asset-backed Notes, the 2.23%
Class A-2a Asset-backed Notes, the LIBOR plus 0.15% Class A-2b Asset-backed Notes, the 2.48% Class A-3
Asset-backed Notes, the 2.83% Class B Asset-backed Notes, the 2.95% Class C Asset-backed Notes and the 3.37% Class D Asset-backed Notes (collectively, the “Notes”), are issued under the Indenture, to which Indenture
and all indentures supplemental thereto reference is hereby made for a statement of the respective rights and obligations thereunder of the Issuer, the Indenture Trustee and the Holders of the Notes. The Notes are subject to all terms of the
Indenture. 
 The Class A-4 Notes are and shall be equally and ratably secured by the
collateral pledged as security therefor as provided in the Indenture. The Class A-4 Notes are subordinated to the Class A-1 Notes, the Class A-2a Notes, Class A-2b Notes and the Class A-3 Notes to the extent set forth in the Indenture and the Sale and
Servicing Agreement. The Class B Notes, the Class C Notes and the Class D Notes are subordinated to the Class A-4 Notes to the extent set forth in the Indenture and the Sale and Servicing
Agreement. 
 As described above, the entire unpaid principal amount of this Class A-4 Note
shall be due and payable on the earlier of the Class A-4 Final Distribution Date and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Notwithstanding the foregoing, the entire
unpaid principal amount of the Notes, together with accrued and unpaid interest thereon through the date of acceleration, shall be due and payable on the date on which an Event of Default shall have occurred and be continuing if the Indenture
Trustee or the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class have declared the Notes to be immediately due and payable in the manner provided in Section 5.2 of the Indenture. All principal
payments on the Class A-4 Notes shall be made pro rata to the Holders entitled thereto if the Notes have been declared immediately due and payable. 

Payments of interest on this Class A-4 Note due and payable on any Distribution Date, together
with the installment of principal, if any, due and payable on such Distribution Date, to the extent not in full payment of this Class A-4 Note, shall be made by check mailed to the Person whose name
appears as the Holder of this Class A-4 Note (or one or more Predecessor Notes) on the Note Register as of the close of business on the Record Date preceding such Distribution Date or by wire transfer in
immediately available funds to the account designated in writing to the Indenture Trustee by such Person at least five (5) Business Days prior to the related Record Date, except that with respect to
Class A-4 Notes registered on the Record Date in the name of the nominee of the Clearing Agency (initially, such nominee to be Cede & Co.), payments will be made by wire transfer in immediately
available funds to the account designated by such nominee. Such checks shall be mailed to the Person entitled thereto at the address of such Person as it appears on the Note Register as of such Record Date without requiring that this Class A-4 Note be submitted for notation of payment. Any reduction in the principal amount of this Class A-4 Note (or any one or more Predecessor Notes) effected by
any payments made on any Distribution Date shall be binding upon all future Holders of this Class A-4 Note and of any Class A-4 Note issued upon the
registration of transfer hereof or in exchange hereof or in lieu hereof, whether or not noted hereon. If funds are expected to be available, as provided in the 

  
 Ex. A-4-4 








 
Indenture, for payment in full of the then remaining unpaid principal amount of this Class A-4 Note on a Distribution Date, then the Indenture
Trustee, in the name of and on behalf of the Issuer, shall notify the Person who was the Holder hereof as of the Record Date preceding such Distribution Date by notice mailed or transmitted by facsimile prior to such Distribution Date, and the
amount then due and payable shall be payable only upon presentation and surrender of this Class A-4 Note at the Indenture Trustee’s Corporate Trust Office or at the office of the Indenture
Trustee’s agent appointed for such purposes located in St. Paul, Minnesota. 
 The Issuer shall pay interest on overdue installments of
interest at the Class A-4 Rate to the extent lawful. 
 As provided in the Indenture, the Notes
may be redeemed, in whole but not in part, in the manner and to the extent described in the Indenture and the Sale and Servicing Agreement. 

As provided in the Indenture, and subject to certain limitations set forth therein, the transfer of this
Class A-4 Note may be registered on the Note Register upon surrender of this Class A-4 Note for registration of transfer at the office or agency designated by
the Issuer pursuant to the Indenture, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Indenture Trustee duly executed by, the Holder hereof or such Holder’s attorney duly authorized in writing,
with such signature guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar, and thereupon one or more new Class A-4 Notes in any authorized denomination
and in the same aggregate principal amount will be issued to the designated transferee or transferees. No service charge will be charged for any registration of transfer or exchange of this Class A-4
Note, but the transferor may be required to pay a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any such registration of transfer or exchange. 

Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and
agrees that no recourse may be taken, directly or indirectly, with respect to the obligations of the Issuer or the Indenture Trustee on the Notes or under the Indenture or any certificate or other writing delivered in connection therewith against
(i) the Indenture Trustee or the Owner Trustee, each in its individual capacity, (ii) any holder of a beneficial interest in the Issuer or (iii) any partner, owner, beneficiary, agent, officer, director or employee of the Indenture
Trustee or the Owner Trustee, each in its individual capacity, or any holder of a beneficial interest in the Issuer, the Owner Trustee or the Indenture Trustee or any successor or assign of the Indenture Trustee or the Owner Trustee, each in its
individual capacity, except as any such Person may have expressly agreed and except that any such partner, owner or beneficiary shall be fully liable, to the extent provided by applicable law, for any unpaid consideration for stock, unpaid capital
contribution for stock, unpaid capital contribution or failure to pay any installment or call owing to such entity. 
 Each Noteholder or
Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and agrees that such Noteholder or Note Owner shall not at any time institute against the Depositor or the Issuer, or join in any
institution against the Depositor or the Issuer of, any bankruptcy, reorganization, arrangement, insolvency or liquidation proceedings under any United States federal or State bankruptcy or similar law in connection with any obligations relating to
the Notes, the Certificates, the Indenture or any of the other Transaction Documents. 

  
 Ex. A-4-5 








 Each Noteholder or Note Owner, by its acceptance of this Note other than a Retained Note or, in
the case of a Note Owner, a beneficial interest in this Note, represents and warrants that either (a) it is not acquiring such Note (or an interest therein) with the assets of any (i) “employee benefit plan” (as defined in
Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”)) subject to the fiduciary requirements of ERISA, (ii) “plan” described in Section 4975(e)(1) of the Internal Revenue Code
of 1986, as amended (the “Code”), including individual retirement accounts and Keogh plans, that is subject to the provisions of Section 4975 of the Code, (iii) entity whose underlying assets include “plan
assets” within the meaning of the United States Department of Labor Regulation 29 C.F.R. Section 2510.3-101, as modified by Section 3(42) of ERISA, by reason of an employee benefit plan’s
or plan’s investment in such entity or (iv) employee benefit plan or arrangement not subject to Title I of ERISA or Section 4975 of the Code; or (b) (i) the acquisition and holding of such Note will not constitute or result in a non-exempt “prohibited transaction” under Section 406 of ERISA or Section 4975 of the Code or a violation of any substantially similar applicable law and (ii) certain other requirements are
satisfied, if applicable, as set forth in Section 2.5(k) of the Indenture. 
 Each Noteholder or Note Owner, by its acceptance of this
Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees to provide to the Indenture Trustee, any Paying Agent or the Issuer, upon its request, the Noteholder Tax Identification Information and, to the extent FATCA
Withholding Tax is applicable, the Noteholder FATCA Information. In addition, each Noteholder or Note Owner, by its acceptance of this Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees that the Indenture Trustee has
the right to withhold any amounts of interest (properly withholdable under law and without any corresponding gross-up) payable to a Noteholder or holder of an interest in a Note that fails to comply with the
requirements of the preceding sentence. 
 The Issuer has entered into the Indenture and this Class A-4 Note is issued with the
intention that, for federal, State and local income, and franchise tax purposes, the Notes (other than any Retained Notes) will qualify as indebtedness of the Issuer secured by the Trust Estate. Each Noteholder or Note Owner, by its acceptance of a
Note or, in the case of a Note Owner, a beneficial interest in a Note, agrees to treat the Notes (other than any Retained Notes) for federal, State and local income, single business and franchise tax purposes as indebtedness of the Issuer. 

Prior to the due presentment for registration of transfer of this Class A-4 Note, the Issuer, the
Indenture Trustee and any agent of the Issuer or the Indenture Trustee may treat the Person in whose name this Class A-4 Note (as of the day of determination or as of such other date as may be specified
in the Indenture) is registered as the owner hereof for all purposes, whether or not this Class A-4 Note shall be overdue, and none of the Issuer, the Indenture Trustee or any such agent shall be affected
by notice to the contrary. 
 The Indenture permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain
exceptions therein provided, to amend or waive from time to time certain terms and conditions set forth in the Indenture without the consent of the Holders of the Notes. 

  
 Ex. A-4-6 








 The Indenture also permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain
exceptions as therein provided, to amend or waive from time to time certain terms and conditions set forth in the Indenture with the consent of the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class. The
Indenture also permits the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class, on behalf of the Holders of all the Notes, to waive compliance by the Issuer with certain provisions of the Indenture and certain
past defaults under the Indenture and their consequences. Any such consent or waiver by the Holders of not less than 51% of the Note Balance of the Controlling Class or the Holder of this Class A-4
Note (or any one or more Predecessor Notes) shall be conclusive and binding on such Holder and on all future Holders of this Class A-4 Note and of any
Class A-4 Note issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof whether or not notation of such consent or waiver is made upon this
Class A-4 Note. 
 The term “Issuer”, as used in this Note, includes any successor to
the Issuer under the Indenture. 
 The Indenture permits the Issuer, under certain circumstances, to consolidate or merge with or into
another Person, subject to the rights of the Indenture Trustee and the Holders of Notes under the Indenture. 
 The Notes are issuable only
in registered form in denominations as provided in the Indenture, subject to certain limitations therein set forth. 
 THIS CLASS A-4 NOTE AND THE INDENTURE SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER AND THEREUNDER SHALL BE DETERMINED IN ACCORDANCE
WITH SUCH LAWS WITHOUT GIVING EFFECT TO THE CONFLICTS OF LAWS PROVISIONS THEREOF WHICH MAY REQUIRE THE APPLICATION OF THE LAWS OF ANY OTHER JURISDICTION (OTHER THAN SECTION 5-1401 OF THE NEW YORK GENERAL
OBLIGATIONS LAW). 
 No reference herein to the Indenture, and no provision of this Note or of the Indenture, shall alter or impair the
obligation of the Issuer, which is absolute and unconditional, to pay the principal of and interest on this Class A-4 Note at the times, place and rate, and in the coin or currency, herein prescribed.

 Anything herein to the contrary notwithstanding, except as expressly provided in the Transaction Documents, none of U.S. Bank National
Association, in its individual capacity, Wilmington Trust, National Association, in its individual capacity, any holder of a beneficial interest in the Issuer, or any of their respective partners, beneficiaries, agents, officers, directors,
employees or successors or assigns shall be personally liable for, nor shall recourse be had to any of them for, the payment of principal of or interest on this Class A-4 Note or the performance of, or
omission to perform, any of the covenants, obligations or indemnifications contained in the Indenture. The Holder of this Note, by its acceptance hereof, agrees that, except as expressly provided in the Transaction Documents, in the case of an Event
of Default under the Indenture, the Holder shall have no claim against any of the foregoing for any deficiency, loss or claim 

  
 Ex. A-4-7 








 
resulting therefrom; provided, however, that nothing contained herein shall be taken to prevent recourse to, or enforcement against, the assets of the Issuer for any and all liabilities,
obligations and undertakings contained in the Indenture or in this Class A-4 Note. 

  
 Ex. A-4-8 








 ASSIGNMENT 

SOCIAL SECURITY NUMBER 
 OR OTHER IDENTIFICATION 

NUMBER OF ASSIGNEE:
                                 

FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto
                                         
                                

 
  

(name and address of assignee) 
 the within Note
and all rights thereunder, and hereby irrevocably constitutes and appoints
                                , attorney, to transfer said Note on the Note
Register, with full power of substitution in the premises. 
 Dated:
                     
  

	
	                                      
                                         
    */
	
	Signature Guaranteed:
	
	                                      
                                         
    */


  

	*/	NOTICE: The signature to this assignment must correspond with the name of the registered owner as it appears on the face of the within Note in every particular, without alteration, enlargement or any change whatsoever.
Such signature must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar. 


  
 Ex. A-4-9 








 Exhibit B 

Form of Class B Note 
 UNLESS
THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED
IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY
TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 

THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS
THAN THE AMOUNT SHOWN ON THE FACE HEREOF. 
  

			
	REGISTERED	  	$[            ]
		
	NO. R-[    ]	  	CUSIP NO. 14314A AE9

 CARMAX AUTO OWNER TRUST 2018-1 

2.83% CLASS B ASSET-BACKED NOTE 

CarMax Auto Owner Trust 2018-1, a statutory trust organized and existing under the laws of the State
of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to Cede & Co., or its registered assigns, the principal sum of [        ] DOLLARS hereto
payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class B Notes pursuant to Section 2.8 of the Indenture dated as of January 1,
2018 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank National Association, a national banking association, as Indenture Trustee (in such capacity,
the “Indenture Trustee”); provided, however, that principal of this Class B Note will not be due and payable until the Class A-1 Notes, the Class A-2a Notes, the Class A-2b Notes, the Class A-3 Notes and the
Class A-4 Notes have been paid in full; and, provided further, that, if not paid prior to such date, the unpaid principal amount of this Class B Note shall be due and payable on the
earlier of the September 15, 2023 Distribution Date (the “Class B Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not
defined herein are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. 

The Issuer shall pay interest on this Class B Note at the rate per annum shown above on each Distribution Date, until the principal of
this Class B Note is paid or made available for payment, on the principal amount of this Class B Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution
Date), 

  
 Ex. B-1 








 
subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class B Note shall accrue for each Distribution Date from and including the 15th day of the
preceding month (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding the 15th day of the month in which such Distribution Date occurs. Interest shall be computed on
the basis of a 360-day year consisting of twelve 30-day months. Interest on this Class B Note on each Distribution Date shall equal
one-twelfth of the product of (i) the rate per annum shown above and (ii) the principal amount of this Class B Note outstanding on the preceding Distribution Date (after giving effect to all
payments of principal made on such preceding Distribution Date); provided, however, that the interest payable on this Class B Note on February 15, 2018 shall equal $        . The
principal of and interest on this Class B Note shall be paid in the manner specified on the reverse hereof. 
 “Distribution
Date” means the 15th day of each month or, if such 15th day is not a Business Day, the following Business Day, commencing on February 15, 2018. 

The principal of and interest on this Class B Note are payable in such coin or currency of the United States as at the time of payment is
legal tender for payment of public and private debts. All payments made by the Issuer with respect to this Class B Note shall be applied first to interest due and payable on this Class B Note as provided above and then to the unpaid
principal of this Class B Note. 
 Reference is hereby made to the further provisions of this Class B Note set forth on the
reverse hereof, which further provisions shall for all purposes have the same effect as if fully set forth on the face of this Class B Note. 

Unless the certificate of authentication hereon has been executed by an authorized officer of the Indenture Trustee, by manual or facsimile
signature, this Class B Note shall not entitle the Holder hereof to any benefit under the Indenture or be valid for any purpose. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 Ex. B-2 








 IN WITNESS WHEREOF, the Issuer has caused this Class B Note to be duly executed as of the
date set forth below. 
 Dated: January 24, 2018 
  

			
	CARMAX AUTO OWNER TRUST 2018-1
		
	By:	 	WILMINGTON TRUST, NATIONAL ASSOCIATION,
not in its individual capacity but solely as Owner Trustee
		
	 By:
	 	
                     
                    

	Name:	 	
	Title:	 	


 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

This is one of the Class B Notes designated above and referred to in the within-mentioned Indenture. 

Dated: January 24, 2018 
  

			
	U.S. BANK NATIONAL ASSOCIATION,
not in its individual capacity but solely as Indenture Trustee
		
	By:	 	
                     
                    

	Name:	 	
	Title:	 	



  
 Ex. B-3 








 [REVERSE OF CLASS B NOTE] 

This Class B Note is one of a duly authorized issue of Notes of the Issuer, designated as its 2.83% Class B Asset-backed Notes,
which, together with the 1.70000% Class A-1 Asset-backed Notes, the 2.23% Class A-2a Asset-backed Notes, the LIBOR plus 0.15%
Class A-2b Asset-backed Notes, the 2.48% Class A-3 Asset-backed Notes, the 2.64% Class A-4 Asset-backed Notes, the
2.95% Class C Asset-backed Notes and the 3.37% Class D Asset-backed Notes (collectively, the “Notes”), are issued under the Indenture, to which Indenture and all indentures supplemental thereto reference is hereby made for
a statement of the respective rights and obligations thereunder of the Issuer, the Indenture Trustee and the Holders of the Notes. The Notes are subject to all terms of the Indenture. 

The Class B Notes are and shall be equally and ratably secured by the collateral pledged as security therefor as provided in the
Indenture. The Class B Notes are subordinated to the Class A-1 Notes, the Class A-2a Notes, the Class A-2b
Notes, the Class A-3 Notes and the Class A-4 Notes to the extent set forth in the Indenture and the Sale and Servicing Agreement. The Class C Notes and
the Class D Notes are subordinated to the Class B Notes to the extent set forth in the Indenture and the Sale and Servicing Agreement. 

As described above, the entire unpaid principal amount of this Class B Note shall be due and payable on the earlier of the Class B
Final Distribution Date and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Notwithstanding the foregoing, the entire unpaid principal amount of the Notes, together with accrued and unpaid interest thereon through the
date of acceleration, shall be due and payable on the date on which an Event of Default shall have occurred and be continuing if the Indenture Trustee or the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling
Class have declared the Notes to be immediately due and payable in the manner provided in Section 5.2 of the Indenture. All principal payments on the Class B Notes shall be made pro rata to the Holders entitled thereto if the Notes
have been declared immediately due and payable. 
 Payments of interest on this Class B Note due and payable on any Distribution Date,
together with the installment of principal, if any, due and payable on such Distribution Date, to the extent not in full payment of this Class B Note, shall be made by check mailed to the Person whose name appears as the Holder of this
Class B Note (or one or more Predecessor Notes) on the Note Register as of the close of business on the Record Date preceding such Distribution Date or by wire transfer in immediately available funds to the account designated in writing to the
Indenture Trustee by such Person at least five (5) Business Days prior to the related Record Date, except that with respect to Class B Notes registered on the Record Date in the name of the nominee of the Clearing Agency (initially, such
nominee to be Cede & Co.), payments will be made by wire transfer in immediately available funds to the account designated by such nominee. Such checks shall be mailed to the Person entitled thereto at the address of such Person as it
appears on the Note Register as of such Record Date without requiring that this Class B Note be submitted for notation of payment. Any reduction in the principal amount of this Class B Note (or any one or more Predecessor Notes) effected
by any payments made on any Distribution Date shall be binding upon all future Holders of this Class B Note and of any Class B Note issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof, whether or not
noted hereon. If funds are expected to be available, as provided in the Indenture, 

  
 Ex. B-4 








 
for payment in full of the then remaining unpaid principal amount of this Class B Note on a Distribution Date, then the Indenture Trustee, in the name of and on behalf of the Issuer, shall
notify the Person who was the Holder hereof as of the Record Date preceding such Distribution Date by notice mailed or transmitted by facsimile prior to such Distribution Date, and the amount then due and payable shall be payable only upon
presentation and surrender of this Class B Note at the Indenture Trustee’s Corporate Trust Office or at the office of the Indenture Trustee’s agent appointed for such purposes located in St. Paul, Minnesota. 

The Issuer shall pay interest on overdue installments of interest at the Class B Rate to the extent lawful. 

As provided in the Indenture, the Notes may be redeemed, in whole but not in part, in the manner and to the extent described in the Indenture
and the Sale and Servicing Agreement. 
 As provided in the Indenture, and subject to certain limitations set forth therein, the transfer of
this Class B Note may be registered on the Note Register upon surrender of this Class B Note for registration of transfer at the office or agency designated by the Issuer pursuant to the Indenture, duly endorsed by, or accompanied by a
written instrument of transfer in form satisfactory to the Indenture Trustee duly executed by, the Holder hereof or such Holder’s attorney duly authorized in writing, with such signature guaranteed by an “eligible guarantor
institution” meeting the requirements of the Note Registrar, and thereupon one or more new Class B Notes in any authorized denomination and in the same aggregate principal amount will be issued to the designated transferee or transferees.
No service charge will be charged for any registration of transfer or exchange of this Class B Note, but the transferor may be required to pay a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with
any such registration of transfer or exchange. 
 Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note
Owner, a beneficial interest in a Note, covenants and agrees that no recourse may be taken, directly or indirectly, with respect to the obligations of the Issuer or the Indenture Trustee on the Notes or under the Indenture or any certificate or
other writing delivered in connection therewith against (i) the Indenture Trustee or the Owner Trustee, each in its individual capacity, (ii) any holder of a beneficial interest in the Issuer or (iii) any partner, owner, beneficiary,
agent, officer, director or employee of the Indenture Trustee or the Owner Trustee, each in its individual capacity, or any holder of a beneficial interest in the Issuer, the Owner Trustee or the Indenture Trustee or any successor or assign of the
Indenture Trustee or the Owner Trustee, each in its individual capacity, except as any such Person may have expressly agreed and except that any such partner, owner or beneficiary shall be fully liable, to the extent provided by applicable law, for
any unpaid consideration for stock, unpaid capital contribution for stock, unpaid capital contribution or failure to pay any installment or call owing to such entity. 

Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and
agrees that such Noteholder or Note Owner shall not at any time institute against the Depositor or the Issuer, or join in any institution against the Depositor or the Issuer of, any bankruptcy, reorganization, arrangement, insolvency or liquidation
proceedings under any United States federal or State bankruptcy or similar law in connection with any obligations relating to the Notes, the Certificates, the Indenture or any of the other Transaction Documents. 

  
 Ex. B-5 








 Each Noteholder or Note Owner, by its acceptance of this Note other than a Retained Note or, in
the case of a Note Owner, a beneficial interest in this Note, represents and warrants that either (a) it is not acquiring such Note (or an interest therein) with the assets of any (i) “employee benefit plan” (as defined in
Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”)) subject to the fiduciary requirements of ERISA, (ii) “plan” described in Section 4975(e)(1) of the Internal Revenue Code
of 1986, as amended (the “Code”), including individual retirement accounts and Keogh plans, that is subject to the provisions of Section 4975 of the Code, (iii) entity whose underlying assets include “plan
assets” within the meaning of the United States Department of Labor Regulation 29 C.F.R. Section 2510.3-101, as modified by Section 3(42) of ERISA, by reason of an employee benefit plan’s
or plan’s investment in such entity or (iv) employee benefit plan or arrangement not subject to Title I of ERISA or Section 4975 of the Code; or (b) (i) the acquisition and holding of such Note will not constitute or result in a non-exempt “prohibited transaction” under Section 406 of ERISA or Section 4975 of the Code or a violation of any substantially similar applicable law and (ii) certain other requirements are
satisfied, if applicable, as set forth in Section 2.5(k) of the Indenture. 
 Each Noteholder or Note Owner, by its acceptance of this
Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees to provide to the Indenture Trustee, any Paying Agent or the Issuer, upon its request, the Noteholder Tax Identification Information and, to the extent FATCA
Withholding Tax is applicable, the Noteholder FATCA Information. In addition, each Noteholder or Note Owner, by its acceptance of this Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees that the Indenture Trustee has
the right to withhold any amounts of interest (properly withholdable under law and without any corresponding gross-up) payable to a Noteholder or holder of an interest in a Note that fails to comply with the
requirements of the preceding sentence. 
 The Issuer has entered into the Indenture and this Class B Note is issued with the intention
that, for federal, State and local income, and franchise tax purposes, the Notes (other than any Retained Notes) will qualify as indebtedness of the Issuer secured by the Trust Estate. Each Noteholder or Note Owner, by its acceptance of a Note or,
in the case of a Note Owner, a beneficial interest in a Note, agrees to treat the Notes (other than any Retained Notes) for federal, State and local income, single business and franchise tax purposes as indebtedness of the Issuer. 

Prior to the due presentment for registration of transfer of this Class B Note, the Issuer, the Indenture Trustee and any agent of the
Issuer or the Indenture Trustee may treat the Person in whose name this Class B Note (as of the day of determination or as of such other date as may be specified in the Indenture) is registered as the owner hereof for all purposes, whether or
not this Class B Note shall be overdue, and none of the Issuer, the Indenture Trustee or any such agent shall be affected by notice to the contrary. 

The Indenture permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain exceptions therein provided, to
amend or waive from time to time certain terms and conditions set forth in the Indenture without the consent of the Holders of the Notes. 

  
 Ex. B-6 








 
The Indenture also permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain exceptions as therein provided, to amend or waive from time to time certain terms
and conditions set forth in the Indenture with the consent of the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class. The Indenture also permits the Holders of Notes evidencing not less than 51% of the Note
Balance of the Controlling Class, on behalf of the Holders of all the Notes, to waive compliance by the Issuer with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver
by the Holders of not less than 51% of the Note Balance of the Controlling Class or the Holder of this Class B Note (or any one or more Predecessor Notes) shall be conclusive and binding on such Holder and on all future Holders of this
Class B Note and of any Class B Note issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof whether or not notation of such consent or waiver is made upon this Class B Note. 

The term “Issuer”, as used in this Note, includes any successor to the Issuer under the Indenture. 

The Indenture permits the Issuer, under certain circumstances, to consolidate or merge with or into another Person, subject to the rights of
the Indenture Trustee and the Holders of Notes under the Indenture. 
 The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth. 
 THIS CLASS B NOTE AND THE INDENTURE SHALL BE CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER AND THEREUNDER SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS WITHOUT GIVING EFFECT TO THE CONFLICTS OF LAWS PROVISIONS THEREOF
WHICH MAY REQUIRE THE APPLICATION OF THE LAWS OF ANY OTHER JURISDICTION (OTHER THAN SECTION 5-1401 OF THE NEW YORK GENERAL OBLIGATIONS LAW). 

No reference herein to the Indenture, and no provision of this Note or of the Indenture, shall alter or impair the obligation of the Issuer,
which is absolute and unconditional, to pay the principal of and interest on this Class B Note at the times, place and rate, and in the coin or currency, herein prescribed. 

Anything herein to the contrary notwithstanding, except as expressly provided in the Transaction Documents, none of U.S. Bank National
Association, in its individual capacity, Wilmington Trust, National Association, in its individual capacity, any holder of a beneficial interest in the Issuer, or any of their respective partners, beneficiaries, agents, officers, directors,
employees or successors or assigns shall be personally liable for, nor shall recourse be had to any of them for, the payment of principal of or interest on this Class B Note or the performance of, or omission to perform, any of the covenants,
obligations or indemnifications contained in the Indenture. The Holder of this Note, by its acceptance hereof, agrees that, except as expressly provided in the Transaction Documents, in the case of an Event of Default under the Indenture, the Holder
shall have no claim against any of the foregoing for any deficiency, loss or claim 

  
 Ex. B-7 








 
resulting therefrom; provided, however, that nothing contained herein shall be taken to prevent recourse to, or enforcement against, the assets of the Issuer for any and all liabilities,
obligations and undertakings contained in the Indenture or in this Class B Note. 

  
 Ex. B-8 








 ASSIGNMENT 

SOCIAL SECURITY NUMBER 
 OR OTHER IDENTIFICATION 

NUMBER OF ASSIGNEE:
                                        

 FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto
                                         
                                  

 
  

(name and address of assignee) 
 the within Note
and all rights thereunder, and hereby irrevocably constitutes and appoints
                                , attorney, to transfer said Note on the Note
Register, with full power of substitution in the premises. 
 Dated:
                     
  

	
	                                      
                                         
    */
	
	Signature Guaranteed:
	
	                                      
                                         
    */


  

	*/	NOTICE: The signature to this assignment must correspond with the name of the registered owner as it appears on the face of the within Note in every particular, without alteration, enlargement or any change whatsoever.
Such signature must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar. 


  
 Ex. B-9 








 Exhibit C 

Form of Class C Note 
 UNLESS
THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED
IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY
TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 

THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS
THAN THE AMOUNT SHOWN ON THE FACE HEREOF. 
  

			
	REGISTERED	  	$[            ]
		
	NO. R-[    ]	  	CUSIP NO. 14314A AF6

 CARMAX AUTO OWNER TRUST 2018-1 

2.95% CLASS C ASSET-BACKED NOTE 

CarMax Auto Owner Trust 2018-1, a statutory trust organized and existing under the laws of the State
of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to Cede & Co., or its registered assigns, the principal sum of [        ] DOLLARS hereto
payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class C Notes pursuant to Section 2.8 of the Indenture dated as of January 1,
2018 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank National Association, a national banking association, as Indenture Trustee (in such capacity,
the “Indenture Trustee”); provided, however, that principal of this Class C Note will not be due and payable until the Class A-1 Notes, the Class A-2a Notes, the Class A-2b Notes, the Class A-3 Notes, the Class A-4
Notes and the Class B Notes have been paid in full; and, provided further, that, if not paid prior to such date, the unpaid principal amount of this Class C Note shall be due and payable on the earlier of the
November 15, 2023 Distribution Date (the “Class C Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein are
defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. 
 The Issuer shall pay
interest on this Class C Note at the rate per annum shown above on each Distribution Date, until the principal of this Class C Note is paid or made available for 

  
 Ex. C-1 








 
payment, on the principal amount of this Class C Note outstanding on the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution
Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this Class C Note shall accrue for each Distribution Date from and including the 15th day of the preceding month (or, in the case of the initial
Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding the 15th day of the month in which such Distribution Date occurs. Interest shall be computed on the basis of a
360-day year consisting of twelve 30-day months. Interest on this Class C Note on each Distribution Date shall equal
one-twelfth of the product of (i) the rate per annum shown above and (ii) the principal amount of this Class C Note outstanding on the preceding Distribution Date (after giving effect to all
payments of principal made on such preceding Distribution Date); provided, however, that the interest payable on this Class C Note on February 15, 2018 shall equal $        . The
principal of and interest on this Class C Note shall be paid in the manner specified on the reverse hereof. 
 “Distribution
Date” means the 15th day of each month or, if such 15th day is not a Business Day, the following Business Day, commencing on February 15, 2018. 

The principal of and interest on this Class C Note are payable in such coin or currency of the United States as at the time of payment is
legal tender for payment of public and private debts. All payments made by the Issuer with respect to this Class C Note shall be applied first to interest due and payable on this Class C Note as provided above and then to the unpaid
principal of this Class C Note. 
 Reference is hereby made to the further provisions of this Class C Note set forth on the
reverse hereof, which further provisions shall for all purposes have the same effect as if fully set forth on the face of this Class C Note. 

Unless the certificate of authentication hereon has been executed by an authorized officer of the Indenture Trustee, by manual or facsimile
signature, this Class C Note shall not entitle the Holder hereof to any benefit under the Indenture or be valid for any purpose. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 Ex. C-2 








 IN WITNESS WHEREOF, the Issuer has caused this Class C Note to be duly executed as of the
date set forth below. 
  

							
	Dated: January 24, 2018	 		 	CARMAX AUTO OWNER TRUST 2018-1
				
		 		 	By:	 	WILMINGTON TRUST, NATIONAL ASSOCIATION,
		 		 		 	not in its individual capacity but solely as Owner Trustee
				
		 		 	By:	 	  

		 		 	Name:	 	
		 		 	Title:	 	

 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

This is one of the Class C Notes designated above and referred to in the within-mentioned Indenture. 

Dated: January 24, 2018 
  

									
		 		 		 	U.S. BANK NATIONAL ASSOCIATION,
not in its individual capacity but solely as Indenture Trustee
					
		 		 		 	By:	 	
                     
                                         
             

		 		 		 	Name:	 	
		 		 		 	Title:	 	


  
 Ex. C-3 








 [REVERSE OF CLASS C NOTE] 

This Class C Note is one of a duly authorized issue of Notes of the Issuer, designated as its 2.95% Class C Asset-backed Notes,
which, together with the 1.70000% Class A-1 Asset-backed Notes, the 2.23% Class A-2a Asset-backed Notes, the LIBOR plus 0.15%
Class A-2b Asset-backed Notes, the 2.48% Class A-3 Asset-backed Notes, the 2.64% Class A-4 Asset-backed Notes, the
2.83% Class B Asset-backed Notes and the 3.37% Class D Asset-backed Notes (collectively, the “Notes”), are issued under the Indenture, to which Indenture and all indentures supplemental thereto reference is hereby made for
a statement of the respective rights and obligations thereunder of the Issuer, the Indenture Trustee and the Holders of the Notes. The Notes are subject to all terms of the Indenture. 

The Class C Notes are and shall be equally and ratably secured by the collateral pledged as security therefor as provided in the
Indenture. The Class C Notes are subordinated to the Class A-1 Notes, the Class A-2a Notes, the Class A-2b
Notes, the Class A-3 Notes, the Class A-4 Notes and the Class B Notes to the extent set forth in the Indenture and the Sale and Servicing Agreement. The
Class D Notes are subordinated to the Class C Notes to the extent set forth in the Indenture and the Sale and Servicing Agreement. 

As described above, the entire unpaid principal amount of this Class C Note shall be due and payable on the earlier of the Class C
Final Distribution Date and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Notwithstanding the foregoing, the entire unpaid principal amount of the Notes, together with accrued and unpaid interest thereon through the
date of acceleration, shall be due and payable on the date on which an Event of Default shall have occurred and be continuing if the Indenture Trustee or the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling
Class have declared the Notes to be immediately due and payable in the manner provided in Section 5.2 of the Indenture. All principal payments on the Class C Notes shall be made pro rata to the Holders entitled thereto if the Notes
have been declared immediately due and payable. 
 Payments of interest on this Class C Note due and payable on any Distribution Date,
together with the installment of principal, if any, due and payable on such Distribution Date, to the extent not in full payment of this Class C Note, shall be made by check mailed to the Person whose name appears as the Holder of this
Class C Note (or one or more Predecessor Notes) on the Note Register as of the close of business on the Record Date preceding such Distribution Date or by wire transfer in immediately available funds to the account designated in writing to the
Indenture Trustee by such Person at least five (5) Business Days prior to the related Record Date, except that with respect to Class C Notes registered on the Record Date in the name of the nominee of the Clearing Agency (initially, such
nominee to be Cede & Co.), payments will be made by wire transfer in immediately available funds to the account designated by such nominee. Such checks shall be mailed to the Person entitled thereto at the address of such Person as it
appears on the Note Register as of such Record Date without requiring that this Class C Note be submitted for notation of payment. Any reduction in the principal amount of this Class C Note (or any one or more Predecessor Notes) effected
by any payments made on any Distribution Date shall be binding upon all future Holders of this Class C Note and of any Class C Note issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof, whether or not
noted hereon. If funds are expected to be available, as provided in the Indenture, 

  
 Ex. C-4 








 
for payment in full of the then remaining unpaid principal amount of this Class C Note on a Distribution Date, then the Indenture Trustee, in the name of and on behalf of the Issuer, shall
notify the Person who was the Holder hereof as of the Record Date preceding such Distribution Date by notice mailed or transmitted by facsimile prior to such Distribution Date, and the amount then due and payable shall be payable only upon
presentation and surrender of this Class C Note at the Indenture Trustee’s Corporate Trust Office or at the office of the Indenture Trustee’s agent appointed for such purposes located in St. Paul, Minnesota. 

The Issuer shall pay interest on overdue installments of interest at the Class C Rate to the extent lawful. 

As provided in the Indenture, the Notes may be redeemed, in whole but not in part, in the manner and to the extent described in the Indenture
and the Sale and Servicing Agreement. 
 As provided in the Indenture, and subject to certain limitations set forth therein, the transfer of
this Class C Note may be registered on the Note Register upon surrender of this Class C Note for registration of transfer at the office or agency designated by the Issuer pursuant to the Indenture, duly endorsed by, or accompanied by a
written instrument of transfer in form satisfactory to the Indenture Trustee duly executed by, the Holder hereof or such Holder’s attorney duly authorized in writing, with such signature guaranteed by an “eligible guarantor
institution” meeting the requirements of the Note Registrar, and thereupon one or more new Class C Notes in any authorized denomination and in the same aggregate principal amount will be issued to the designated transferee or transferees.
No service charge will be charged for any registration of transfer or exchange of this Class C Note, but the transferor may be required to pay a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with
any such registration of transfer or exchange. 
 Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note
Owner, a beneficial interest in a Note, covenants and agrees that no recourse may be taken, directly or indirectly, with respect to the obligations of the Issuer or the Indenture Trustee on the Notes or under the Indenture or any certificate or
other writing delivered in connection therewith against (i) the Indenture Trustee or the Owner Trustee, each in its individual capacity, (ii) any holder of a beneficial interest in the Issuer or (iii) any partner, owner, beneficiary,
agent, officer, director or employee of the Indenture Trustee or the Owner Trustee, each in its individual capacity, or any holder of a beneficial interest in the Issuer, the Owner Trustee or the Indenture Trustee or any successor or assign of the
Indenture Trustee or the Owner Trustee, each in its individual capacity, except as any such Person may have expressly agreed and except that any such partner, owner or beneficiary shall be fully liable, to the extent provided by applicable law, for
any unpaid consideration for stock, unpaid capital contribution for stock, unpaid capital contribution or failure to pay any installment or call owing to such entity. 

Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and
agrees that such Noteholder or Note Owner shall not at any time institute against the Depositor or the Issuer, or join in any institution against the Depositor or the Issuer of, any bankruptcy, reorganization, arrangement, insolvency or liquidation
proceedings under any United States federal or State bankruptcy or similar law in connection with any obligations relating to the Notes, the Certificates, the Indenture or any of the other Transaction Documents. 

  
 Ex. C-5 








 Each Noteholder or Note Owner, by its acceptance of this Note other than a Retained Note or, in
the case of a Note Owner, a beneficial interest in this Note, represents and warrants that either (a) it is not acquiring such Note (or an interest therein) with the assets of any (i) “employee benefit plan” (as defined in
Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”)) subject to the fiduciary requirements of ERISA, (ii) “plan” described in Section 4975(e)(1) of the Internal Revenue Code
of 1986, as amended (the “Code”), including individual retirement accounts and Keogh plans, that is subject to the provisions of Section 4975 of the Code, (iii) entity whose underlying assets include “plan
assets” within the meaning of the United States Department of Labor Regulation 29 C.F.R. Section 2510.3-101, as modified by Section 3(42) of ERISA, by reason of an employee benefit plan’s
or plan’s investment in such entity or (iv) employee benefit plan or arrangement not subject to Title I of ERISA or Section 4975 of the Code; or (b) (i) the acquisition and holding of such Note will not constitute or result in a non-exempt “prohibited transaction” under Section 406 of ERISA or Section 4975 of the Code or a violation of any substantially similar applicable law and (ii) certain other requirements are
satisfied, if applicable, as set forth in Section 2.5(k) of the Indenture. 
 Each Noteholder or Note Owner, by its acceptance of this
Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees to provide to the Indenture Trustee, any Paying Agent or the Issuer, upon its request, the Noteholder Tax Identification Information and, to the extent FATCA
Withholding Tax is applicable, the Noteholder FATCA Information. In addition, each Noteholder or Note Owner, by its acceptance of this Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees that the Indenture Trustee has
the right to withhold any amounts of interest (properly withholdable under law and without any corresponding gross-up) payable to a Noteholder or holder of an interest in a Note that fails to comply with the
requirements of the preceding sentence. 
 The Issuer has entered into the Indenture and this Class C Note is issued with the intention
that, for federal, State and local income, and franchise tax purposes, the Notes (other than any Retained Notes) will qualify as indebtedness of the Issuer secured by the Trust Estate. Each Noteholder or Note Owner, by its acceptance of a Note or,
in the case of a Note Owner, a beneficial interest in a Note, agrees to treat the Notes (other than any Retained Notes) for federal, State and local income, single business and franchise tax purposes as indebtedness of the Issuer. 

Prior to the due presentment for registration of transfer of this Class C Note, the Issuer, the Indenture Trustee and any agent of the
Issuer or the Indenture Trustee may treat the Person in whose name this Class C Note (as of the day of determination or as of such other date as may be specified in the Indenture) is registered as the owner hereof for all purposes, whether or
not this Class C Note shall be overdue, and none of the Issuer, the Indenture Trustee or any such agent shall be affected by notice to the contrary. 

The Indenture permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain exceptions therein provided, to
amend or waive from time to time certain terms and conditions set forth in the Indenture without the consent of the Holders of the Notes. 

  
 Ex. C-6 








 The Indenture also permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain
exceptions as therein provided, to amend or waive from time to time certain terms and conditions set forth in the Indenture with the consent of the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class. The
Indenture also permits the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class, on behalf of the Holders of all the Notes, to waive compliance by the Issuer with certain provisions of the Indenture and certain
past defaults under the Indenture and their consequences. Any such consent or waiver by the Holders of not less than 51% of the Note Balance of the Controlling Class or the Holder of this Class C Note (or any one or more Predecessor Notes)
shall be conclusive and binding on such Holder and on all future Holders of this Class C Note and of any Class C Note issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof whether or not notation of such
consent or waiver is made upon this Class C Note. 
 The term “Issuer”, as used in this Note, includes any successor to the
Issuer under the Indenture. 
 The Indenture permits the Issuer, under certain circumstances, to consolidate or merge with or into another
Person, subject to the rights of the Indenture Trustee and the Holders of Notes under the Indenture. 
 The Notes are issuable only in
registered form in denominations as provided in the Indenture, subject to certain limitations therein set forth. 
 This Class C Note
and the Indenture shall be construed in accordance with the laws of the State of New York, and the obligations, rights and remedies of the parties hereunder and thereunder shall be determined in accordance with such laws without giving effect to the
conflicts of laws provisions thereof which may require the application of the laws of any other jurisdiction (other than Section 5-1401 of the New York General Obligations Law). 

No reference herein to the Indenture, and no provision of this Note or of the Indenture, shall alter or impair the obligation of the Issuer,
which is absolute and unconditional, to pay the principal of and interest on this Class C Note at the times, place and rate, and in the coin or currency, herein prescribed. 

Anything herein to the contrary notwithstanding, except as expressly provided in the Transaction Documents, none of U.S. Bank National
Association, in its individual capacity, Wilmington Trust, National Association, in its individual capacity, any holder of a beneficial interest in the Issuer, or any of their respective partners, beneficiaries, agents, officers, directors,
employees or successors or assigns shall be personally liable for, nor shall recourse be had to any of them for, the payment of principal of or interest on this Class C Note or the performance of, or omission to perform, any of the covenants,
obligations or indemnifications contained in the Indenture. The Holder of this Note, by its acceptance hereof, agrees that, except as expressly provided in the Transaction Documents, in the case of an Event of Default under the Indenture, the Holder
shall have no claim against any of the foregoing for any deficiency, loss or claim resulting therefrom; provided, however, that nothing contained herein shall be taken to prevent recourse to, or enforcement against, the assets of the Issuer for any
and all liabilities, obligations and undertakings contained in the Indenture or in this Class C Note. 

  
 Ex. C-7 








 ASSIGNMENT 

SOCIAL SECURITY NUMBER 
 OR OTHER IDENTIFICATION 

NUMBER OF ASSIGNEE:
                                        


FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto     
                                         
                            
  

 
 (name and address of assignee) 

the within Note and all rights thereunder, and hereby irrevocably constitutes and appoints
                                , attorney, to transfer said Note on the Note
Register, with full power of substitution in the premises. 
 Dated:
                     
  

	
	
                   
                                         
                        */

	
	 Signature Guaranteed:

	
	                                     
                                         
      */


  

	*/	NOTICE: The signature to this assignment must correspond with the name of the registered owner as it appears on the face of the within Note in every particular, without alteration, enlargement or any change whatsoever.
Such signature must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar. 


  
 Ex. C-8 








 Exhibit D 

Form of Class D Note 
 UNLESS
THIS NOTE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY NOTE ISSUED IS REGISTERED
IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY
TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 

THE PRINCIPAL OF THIS NOTE IS PAYABLE AS SET FORTH IN THE INDENTURE (AS DEFINED BELOW). THE OUTSTANDING PRINCIPAL BALANCE OF THIS NOTE AT ANY TIME MAY BE LESS
THAN THE AMOUNT SHOWN ON THE FACE HEREOF. 
  

			
	 REGISTERED
	  	$[            ]
		
	 NO. R-[    ]
	  	CUSIP NO. 14314A AG4

 CARMAX AUTO OWNER TRUST 2018-1 

3.37% CLASS D ASSET-BACKED NOTE 

CarMax Auto Owner Trust 2018-1, a statutory trust organized and existing under the laws of the State
of Delaware (herein referred to as the “Issuer”), for value received, hereby promises to pay to Cede & Co., or its registered assigns, the principal sum of [        ] DOLLARS hereto
payable on each Distribution Date in an amount equal to the aggregate amount, if any, payable from the Note Payment Account in respect of principal on the Class D Notes pursuant to Section 2.8 of the Indenture dated as of January 1,
2018 (as amended, supplemented or otherwise modified and in effect from time to time, the “Indenture”) between the Issuer and U.S. Bank National Association, a national banking association, as Indenture Trustee (in such capacity,
the “Indenture Trustee”); provided, however, that principal of this Class D Note will not be due and payable until the Class A-1 Notes, the Class A-2a Notes, the Class A-2b Notes, the Class A-3 Notes, the Class A-4
Notes, the Class B Notes and the Class C Notes have been paid in full; and, provided further, that, if not paid prior to such date, the unpaid principal amount of this Class D Note shall be due and payable on the earlier
of the July 15, 2024 Distribution Date (the “Class D Final Distribution Date”) and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Capitalized terms used but not defined herein
are defined in Article I of the Indenture, which also contains rules as to construction that shall be applicable hereto. 
 The Issuer shall
pay interest on this Class D Note at the rate per annum shown above on each Distribution Date, until the principal of this Class D Note is paid or made available for payment, on the principal amount of this Class D Note outstanding on
the preceding Distribution 

  
 Ex. D-1 








 
Date (after giving effect to all payments of principal made on such preceding Distribution Date), subject to certain limitations contained in Section 3.1 of the Indenture. Interest on this
Class D Note shall accrue for each Distribution Date from and including the 15th day of the preceding month (or, in the case of the initial Distribution Date or if no interest has been paid, from and including the Closing Date) to but excluding
the 15th day of the month in which such Distribution Date occurs. Interest shall be computed on the basis of a 360-day year consisting of twelve 30-day months. Interest
on this Class D Note on each Distribution Date shall equal one-twelfth of the product of (i) the rate per annum shown above and (ii) the principal amount of this Class D Note outstanding on
the preceding Distribution Date (after giving effect to all payments of principal made on such preceding Distribution Date); provided, however, that the interest payable on this Class D Note on February 15, 2018 shall equal
$        . The principal of and interest on this Class D Note shall be paid in the manner specified on the reverse hereof. 

“Distribution Date” means the 15th day of each month or, if such 15th day is not a Business Day, the following Business Day,
commencing on February 15, 2018. 
 The principal of and interest on this Class D Note are payable in such coin or currency of the
United States as at the time of payment is legal tender for payment of public and private debts. All payments made by the Issuer with respect to this Class D Note shall be applied first to interest due and payable on this Class D Note as
provided above and then to the unpaid principal of this Class D Note. 
 Reference is hereby made to the further provisions of this
Class D Note set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if fully set forth on the face of this Class D Note. 

Unless the certificate of authentication hereon has been executed by an authorized officer of the Indenture Trustee, by manual or facsimile
signature, this Class D Note shall not entitle the Holder hereof to any benefit under the Indenture or be valid for any purpose. 

[REMAINDER OF PAGE INTENTIONALLY LEFT BLANK] 

  
 Ex. D-2 








 IN WITNESS WHEREOF, the Issuer has caused this Class D Note to be duly executed as of the date set forth
below. 
 Dated: January 24, 2018 
  

			
	CARMAX AUTO OWNER TRUST 2018-1
		
	By:	 	WILMINGTON TRUST, NATIONAL ASSOCIATION,
not in its individual capacity but solely as Owner Trustee
		
	By:	 	
                     
                    

	Name:	 	
	Title:	 	


 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

This is one of the Class D Notes designated above and referred to in the within-mentioned Indenture. 

Dated: January 24, 2018 
  

			
	U.S. BANK NATIONAL ASSOCIATION,
not in its individual capacity but solely as Indenture Trustee
		
	By:	 	
                     
                    

	Name:	 	
	Title:	 	



  
 Ex. D-3 








 [REVERSE OF CLASS D NOTE] 

This Class D Note is one of a duly authorized issue of Notes of the Issuer, designated as its 3.37% Class D Asset-backed Notes,
which, together with the 1.70000% Class A-1 Asset-backed Notes, the 2.23% Class A-2a Asset-backed Notes, the LIBOR plus 0.15%
Class A-2b Asset-backed Notes, the 2.48% Class A-3 Asset-backed Notes, the 2.64% Class A-4 Asset-backed Notes, the
2.83% Class B Asset-backed Notes and the 2.95% Class C Asset-backed Notes (collectively, the “Notes”), are issued under the Indenture, to which Indenture and all indentures supplemental thereto reference is hereby made for
a statement of the respective rights and obligations thereunder of the Issuer, the Indenture Trustee and the Holders of the Notes. The Notes are subject to all terms of the Indenture. 

The Class D Notes are and shall be equally and ratably secured by the collateral pledged as security therefor as provided in the
Indenture. The Class D Notes are subordinated to the Class A-1 Notes, the Class A-2a Notes, the Class A-2b
Notes, the Class A-3 Notes, the Class A-4 Notes, the Class B Notes and the Class C Notes to the extent set forth in the Indenture and the Sale and
Servicing Agreement. 
 As described above, the entire unpaid principal amount of this Class D Note shall be due and payable on the
earlier of the Class D Final Distribution Date and the Redemption Date, if any, pursuant to Section 10.1 of the Indenture. Notwithstanding the foregoing, the entire unpaid principal amount of the Notes, together with accrued and unpaid
interest thereon through the date of acceleration, shall be due and payable on the date on which an Event of Default shall have occurred and be continuing if the Indenture Trustee or the Holders of Notes evidencing not less than 51% of the Note
Balance of the Controlling Class have declared the Notes to be immediately due and payable in the manner provided in Section 5.2 of the Indenture. All principal payments on the Class D Notes shall be made pro rata to the Holders
entitled thereto if the Notes have been declared immediately due and payable. 
 Payments of interest on this Class D Note due and
payable on any Distribution Date, together with the installment of principal, if any, due and payable on such Distribution Date, to the extent not in full payment of this Class D Note, shall be made by check mailed to the Person whose name
appears as the Holder of this Class D Note (or one or more Predecessor Notes) on the Note Register as of the close of business on the Record Date preceding such Distribution Date or by wire transfer in immediately available funds to the account
designated in writing to the Indenture Trustee by such Person at least five (5) Business Days prior to the related Record Date, except that with respect to Class D Notes registered on the Record Date in the name of the nominee of the
Clearing Agency (initially, such nominee to be Cede & Co.), payments will be made by wire transfer in immediately available funds to the account designated by such nominee. Such checks shall be mailed to the Person entitled thereto at the
address of such Person as it appears on the Note Register as of such Record Date without requiring that this Class D Note be submitted for notation of payment. Any reduction in the principal amount of this Class D Note (or any one or more
Predecessor Notes) effected by any payments made on any Distribution Date shall be binding upon all future Holders of this Class D Note and of any Class D Note issued upon the registration of transfer hereof or in exchange hereof or in
lieu hereof, whether or not noted hereon. If funds are expected to be available, as provided in the Indenture, for payment in full of the then remaining unpaid principal amount of this Class D 

  
 Ex. D-4 








 
Note on a Distribution Date, then the Indenture Trustee, in the name of and on behalf of the Issuer, shall notify the Person who was the Holder hereof as of the Record Date preceding such
Distribution Date by notice mailed or transmitted by facsimile prior to such Distribution Date, and the amount then due and payable shall be payable only upon presentation and surrender of this Class D Note at the Indenture Trustee’s
Corporate Trust Office or at the office of the Indenture Trustee’s agent appointed for such purposes located in St. Paul, Minnesota. 

The Issuer shall pay interest on overdue installments of interest at the Class D Rate to the extent lawful. 

As provided in the Indenture, the Notes may be redeemed, in whole but not in part, in the manner and to the extent described in the Indenture
and the Sale and Servicing Agreement. 
 As provided in the Indenture, and subject to certain limitations set forth therein, the transfer of
this Class D Note may be registered on the Note Register upon surrender of this Class D Note for registration of transfer at the office or agency designated by the Issuer pursuant to the Indenture, duly endorsed by, or accompanied by a
written instrument of transfer in form satisfactory to the Indenture Trustee duly executed by, the Holder hereof or such Holder’s attorney duly authorized in writing, with such signature guaranteed by an “eligible guarantor
institution” meeting the requirements of the Note Registrar, and thereupon one or more new Class D Notes in any authorized denomination and in the same aggregate principal amount will be issued to the designated transferee or transferees.
No service charge will be charged for any registration of transfer or exchange of this Class D Note, but the transferor may be required to pay a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with
any such registration of transfer or exchange. 
 Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note
Owner, a beneficial interest in a Note, covenants and agrees that no recourse may be taken, directly or indirectly, with respect to the obligations of the Issuer or the Indenture Trustee on the Notes or under the Indenture or any certificate or
other writing delivered in connection therewith against (i) the Indenture Trustee or the Owner Trustee, each in its individual capacity, (ii) any holder of a beneficial interest in the Issuer or (iii) any partner, owner, beneficiary,
agent, officer, director or employee of the Indenture Trustee or the Owner Trustee, each in its individual capacity, or any holder of a beneficial interest in the Issuer, the Owner Trustee or the Indenture Trustee or any successor or assign of the
Indenture Trustee or the Owner Trustee, each in its individual capacity, except as any such Person may have expressly agreed and except that any such partner, owner or beneficiary shall be fully liable, to the extent provided by applicable law, for
any unpaid consideration for stock, unpaid capital contribution for stock, unpaid capital contribution or failure to pay any installment or call owing to such entity. 

Each Noteholder or Note Owner, by its acceptance of a Note or, in the case of a Note Owner, a beneficial interest in a Note, covenants and
agrees that such Noteholder or Note Owner shall not at any time institute against the Depositor or the Issuer, or join in any institution against the Depositor or the Issuer of, any bankruptcy, reorganization, arrangement, insolvency or liquidation
proceedings under any United States federal or State bankruptcy or similar law in connection with any obligations relating to the Notes, the Certificates, the Indenture or any of the other Transaction Documents. 

  
 Ex. D-5 








 Each Noteholder or Note Owner, by its acceptance of this Note other than a Retained Note or, in
the case of a Note Owner, a beneficial interest in this Note, represents and warrants that either (a) it is not acquiring such Note (or an interest therein) with the assets of any (i) “employee benefit plan” (as defined in
Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”)) subject to the fiduciary requirements of ERISA, (ii) “plan” described in Section 4975(e)(1) of the Internal Revenue Code
of 1986, as amended (the “Code”), including individual retirement accounts and Keogh plans, that is subject to the provisions of Section 4975 of the Code, (iii) entity whose underlying assets include “plan
assets” within the meaning of the United States Department of Labor Regulation 29 C.F.R. Section 2510.3-101, as modified by Section 3(42) of ERISA, by reason of an employee benefit plan’s
or plan’s investment in such entity or (iv) employee benefit plan or arrangement not subject to Title I of ERISA or Section 4975 of the Code; or (b) (i) the acquisition and holding of such Note will not constitute or result in a non-exempt “prohibited transaction” under Section 406 of ERISA or Section 4975 of the Code or a violation of any substantially similar applicable law and (ii) certain other requirements are
satisfied, if applicable, as set forth in Section 2.5(k) of the Indenture. 
 Each Noteholder or Note Owner, by its acceptance of this
Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees to provide to the Indenture Trustee, any Paying Agent or the Issuer, upon its request, the Noteholder Tax Identification Information and, to the extent FATCA
Withholding Tax is applicable, the Noteholder FATCA Information. In addition, each Noteholder or Note Owner, by its acceptance of this Note or, in the case of a Note Owner, a beneficial interest in this Note, agrees that the Indenture Trustee has
the right to withhold any amounts of interest (properly withholdable under law and without any corresponding gross-up) payable to a Noteholder or holder of an interest in a Note that fails to comply with the
requirements of the preceding sentence. 
 The Issuer has entered into the Indenture and this Class D Note is issued with the intention
that, for federal, State and local income, and franchise tax purposes, the Notes (other than any Retained Notes) will qualify as indebtedness of the Issuer secured by the Trust Estate. Each Noteholder or Note Owner, by its acceptance of a Note or,
in the case of a Note Owner, a beneficial interest in a Note, agrees to treat the Notes (other than any Retained Notes) for federal, State and local income, single business and franchise tax purposes as indebtedness of the Issuer. 

Prior to the due presentment for registration of transfer of this Class D Note, the Issuer, the Indenture Trustee and any agent of the
Issuer or the Indenture Trustee may treat the Person in whose name this Class D Note (as of the day of determination or as of such other date as may be specified in the Indenture) is registered as the owner hereof for all purposes, whether or
not this Class D Note shall be overdue, and none of the Issuer, the Indenture Trustee or any such agent shall be affected by notice to the contrary. 

The Indenture permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain exceptions therein provided, to
amend or waive from time to time certain terms and conditions set forth in the Indenture without the consent of the Holders of the Notes. The Indenture also permits the Owner Trustee, on behalf of the Issuer, and the Indenture Trustee, with certain
exceptions as therein provided, to amend or waive from time to time certain terms and conditions set forth in the Indenture with the consent of the Holders of Notes evidencing not 

  
 Ex. D-6 








 
less than 51% of the Note Balance of the Controlling Class. The Indenture also permits the Holders of Notes evidencing not less than 51% of the Note Balance of the Controlling Class, on behalf of
the Holders of all the Notes, to waive compliance by the Issuer with certain provisions of the Indenture and certain past defaults under the Indenture and their consequences. Any such consent or waiver by the Holders of not less than 51% of the Note
Balance of the Controlling Class or the Holder of this Class D Note (or any one or more Predecessor Notes) shall be conclusive and binding on such Holder and on all future Holders of this Class D Note and of any Class D Note
issued upon the registration of transfer hereof or in exchange hereof or in lieu hereof whether or not notation of such consent or waiver is made upon this Class D Note. 

The term “Issuer”, as used in this Note, includes any successor to the Issuer under the Indenture. 

The Indenture permits the Issuer, under certain circumstances, to consolidate or merge with or into another Person, subject to the rights of
the Indenture Trustee and the Holders of Notes under the Indenture. 
 The Notes are issuable only in registered form in denominations as
provided in the Indenture, subject to certain limitations therein set forth. 
 THIS CLASS D NOTE AND THE INDENTURE SHALL BE CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AND THE OBLIGATIONS, RIGHTS AND REMEDIES OF THE PARTIES HEREUNDER AND THEREUNDER SHALL BE DETERMINED IN ACCORDANCE WITH SUCH LAWS WITHOUT GIVING EFFECT TO THE CONFLICTS OF LAWS PROVISIONS THEREOF
WHICH MAY REQUIRE THE APPLICATION OF THE LAWS OF ANY OTHER JURISDICTION (OTHER THAN SECTION 5-1401 OF THE NEW YORK GENERAL OBLIGATIONS LAW). 

No reference herein to the Indenture, and no provision of this Note or of the Indenture, shall alter or impair the obligation of the Issuer,
which is absolute and unconditional, to pay the principal of and interest on this Class D Note at the times, place and rate, and in the coin or currency, herein prescribed. 

Anything herein to the contrary notwithstanding, except as expressly provided in the Transaction Documents, none of U.S. Bank National
Association, in its individual capacity, Wilmington Trust, National Association, in its individual capacity, any holder of a beneficial interest in the Issuer, or any of their respective partners, beneficiaries, agents, officers, directors,
employees or successors or assigns shall be personally liable for, nor shall recourse be had to any of them for, the payment of principal of or interest on this Class D Note or the performance of, or omission to perform, any of the covenants,
obligations or indemnifications contained in the Indenture. The Holder of this Note, by its acceptance hereof, agrees that, except as expressly provided in the Transaction Documents, in the case of an Event of Default under the Indenture, the Holder
shall have no claim against any of the foregoing for any deficiency, loss or claim resulting therefrom; provided, however, that nothing contained herein shall be taken to prevent recourse to, or enforcement against, the assets of the Issuer for any
and all liabilities, obligations and undertakings contained in the Indenture or in this Class D Note. 

  
 Ex. D-7 








 ASSIGNMENT 

SOCIAL SECURITY NUMBER 
 OR OTHER IDENTIFICATION 

NUMBER OF ASSIGNEE:
                                        


FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers unto     
                                         
                              

 
  

(name and address of assignee) 
 the within Note
and all rights thereunder, and hereby irrevocably constitutes and appoints
                                , attorney, to transfer said Note on the Note
Register, with full power of substitution in the premises. 
 Dated:
                     
  

	
	
                   
                                         
                       */

	
	 Signature Guaranteed:

	
	                                     
                                         
     */


  

	*/	NOTICE: The signature to this assignment must correspond with the name of the registered owner as it appears on the face of the within Note in every particular, without alteration, enlargement or any change whatsoever.
Such signature must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Note Registrar. 


  
 Ex. D-8 








 Exhibit E 

Form of Opinion of Counsel 
  

	1.	Pursuant to Sections 18-201(a), 18-204 and 18-206 of the Delaware Limited Liability Company Act,
the Secretary of State of the State of Delaware is required to maintain a public record showing limited liability companies that have been organized. Pursuant to Section 3810, Section 3811 and Section 3812 of the Delaware Statutory
Trust Act, the Secretary of State of the State of Delaware is required to maintain a public record showing statutory trusts that have been formed. Based solely on our review of (i) the Delaware Limited Liability Company Act as found in
“Corporation: Covering Corporation Practice, Procedure, Law - Aspen Law & Business,” as supplemented through              , 20    ; (ii) the Delaware
Statutory Trust Act as found in “Delaware Code Annotated, Volume 7A, 2007 Volume - Michie;” and (iii) as to each of CarMax, the Depositor and the Issuing Entity’s existence in the State of Delaware, a copy of the certificate of
formation of each of CarMax and the Depositor and a copy of the certificate of trust of the Issuing Entity, each as supplied to us by the Secretary of State of the State of Delaware, each of CarMax, the Depositor and the Issuing Entity is a
registered organization (as such term is defined in the New York UCC) formed under the laws of the State of Delaware. For the purposes of this opinion, we have assumed that each of CarMax, the Depositor and the Issuing Entity is organized solely
under the laws of the State of Delaware. Each of CarMax, the Depositor and the Issuing Entity is, therefore, located, for purposes of Article 9 of the New York UCC, in the State of Delaware and the local law of Delaware governs perfection by the
filing of a financing statement of a nonpossessory security interest in the Receivables granted by CarMax, the Depositor and the Issuing Entity. 

  

	2.	Assuming the Receivables are created under, and are evidenced solely by, retail installment sale contracts in the form attached to the opinion as Exhibit A, and assuming they are completed in their entirety and executed
and there is nothing that would prevent them from being enforceable, then the Receivables will constitute “tangible chattel paper” as such term is defined in Article 9 of the New York UCC. 


 

	3.	When each of the Receivables Purchase Agreement and the First Step Bill of Sale has been duly executed and delivered by all parties thereto and when value has been given as provided in
Section 9-203(b)(1) of the New York UCC with respect to the Receivables, the Depositor will have a valid and enforceable security interest in such Receivables and identifiable cash proceeds thereof. When,
in addition to the foregoing, the First Step Financing Statement has been duly filed in the office of the Secretary of State of the State of Delaware, the security interest in favor of the Depositor in such Receivables and identifiable cash proceeds
thereof will be perfected. 

  

	4.	When each of the Receivables Purchase Agreement, the First Step Bill of Sale and the Sale and Servicing Agreement has been duly executed and delivered by all parties thereto and when value has been given as provided in Section 9-203(b)(1) of the New York UCC with respect to the Receivables, the Issuing Entity will have a valid and enforceable security interest in such Receivables and the identifiable cash proceeds thereof.
When, in addition to 


  
 Ex. E-1 









	 	
the foregoing, each of the First Step Financing Statement and the Second Step Financing Statement has been duly filed in the office of the Secretary of State of the State of Delaware, the
security interest in favor of the Issuing Entity in such Receivables and identifiable cash proceeds thereof will be perfected. 

  

	5.	When each of the Basic Documents has been duly executed and delivered by all parties thereto and when value has been given as provided in Section 9-203(b)(1) of the New York
UCC with respect to the Receivables, the Indenture Trustee will have a valid and enforceable security interest in such Receivables and the identifiable cash proceeds thereof. When, in addition to the foregoing, all of the Financing Statements have
been duly filed in the office of the Secretary of State of the State of Delaware, the security interest in favor of the Indenture Trustee in such Receivables and identifiable cash proceeds thereof will be perfected. 


 

	6.	Under the New York UCC, a nonpossessory security interest in tangible chattel paper can be perfected by the filing of a financing statement only in the jurisdiction where the debtor is located. Because each of CarMax,
the Depositor and the Issuing Entity is located in Delaware for purposes of the New York UCC, Delaware is the only jurisdiction in which a financing statement could be filed to perfect a nonpossessory security interest in the rights of CarMax, the
Depositor and the Issuing Entity in the Receivables. Therefore, to the extent a financing statement was filed there, the office of the Secretary of State of the State of Delaware constitutes the only filing office from which UCC Search Reports must
be reviewed to determine whether another nonpossessory security interest in the rights of CarMax, the Depositor or the Issuing Entity in the Receivables exists which was perfected by filing. We have not reviewed any UCC search reports other than the
UCC Search Reports. 

  

	7.	Based solely on our review of the UCC Search Reports and assuming the Terminated Financing Statements are duly filed in the office of the Secretary of State of the State of Delaware, the respective security interests of
the Depositor, the Issuing Entity and the Indenture Trustee in the Receivables and identifiable cash proceeds thereof are subject to no equal or prior security interest perfected by filing a financing statement under the Delaware UCC. To the extent
the Receivables constitute “tangible chattel paper” under the New York UCC, the local law of the jurisdiction in which the Receivables are physically located governs the effect of perfection or
non-perfection and the priority of a nonpossessory security interest in the Receivables. For purposes of our opinion, we have assumed that the UCC provisions governing the effect of perfection or non-perfection and the priority of nonpossessory security interests in tangible chattel paper as in effect in each jurisdiction in which the Receivables are physically located, and the interpretation of such
provisions in each such jurisdiction, are identical to the corresponding provisions and interpretations under the New York UCC. 

  

	8.	When each of the Basic Documents has been duly executed and delivered by all parties thereto, and value has been given as provided in Section 9-203(b)(1) of the New York UCC
with respect to the Collection Account and the Note Payment Account (collectively, the “Accounts”), the Indenture Trustee will have a valid and enforceable security interest in the 


  
 Ex. E-2 









	 	
Accounts and the identifiable cash proceeds thereof and such security interest will be perfected under the New York UCC. For the purposes of this opinion, we have also assumed that each Account
is a “deposit account” as defined in the New York UCC, that such Account is maintained with the Indenture Trustee and that the Indenture Trustee is a “bank” as defined in the New York UCC. To the extent each Account constitutes a
“securities account” as defined in the New York UCC, and when each of the Financing Statements has been duly filed in the office of the Secretary of State of the State of Delaware, the security interest of the Indenture Trustee in the
Accounts and identifiable cash proceeds thereof has been perfected. 


  
 Ex. E-3 








 EXHIBIT F 

FORM OF TRANSFEROR CERTIFICATE 

[DATE] 
 U.S. Bank National Association, as Indenture Trustee

 90 South LaSalle Street, 7th Floor 
 Mail Code: MK-IL-SL7C 
 Chicago, Illinois 60603 

Attention: CAOT 2018-1 

with a copy to: 
 U.S. Bank National Association 

111 Fillmore Avenue,
 St. Paul, Minnesota 55107 

Attn: Bondholder Services - CAOT 2018-1 

CarMax Auto Funding, LLC 
 12800 Tuckahoe Creek Parkway 

Richmond, Virginia 23238 
 Attention: Treasurer 

CarMax Auto Owner Trust 2018-1 

c/o Wilmington Trust, National Association 
 Rodney Square North

 1100 North Market Street 
 Wilmington, Delaware 19890-0001

 Attention: Corporate Trust Administration 
  

	Re:	CarMax Auto Owner Trust 2018-1 Class      Notes 


Ladies and Gentlemen: 
 In connection with our
disposition of the above-referenced Class      Notes (the “Class      Notes”) we certify that (a) we understand that the Class      Notes have not been registered under the
Securities Act of 1933, as amended (the “Act”), and are being transferred by us in a transaction that is exempt from the registration requirements of the Act and (b) we have not offered or sold any Class      Notes
to, or solicited offers to buy any Class      Notes from, any person, or otherwise approached or negotiated with any person with respect thereto, in a manner that would be deemed, or taken any other action which would result in,
a violation of Section 5 of the Act. 

  
 Ex. F-1 









			
	Very truly yours,
	
	[NAME OF TRANSFEROR]
		
	By:	 	                                     
                                         
           
		 	Authorized Officer


  
 Ex. F-2 








 EXHIBIT G 

FORM OF INVESTMENT LETTER 
 U.S.
Bank National Association, as Indenture Trustee 
 90 South LaSalle Street, 7th Floor 

Mail Code: MK-IL-SL7C 

Chicago, Illinois 60603 
 Attention: CAOT 2018-1 
 with a copy to: 

U.S. Bank National Association 
 111 Fillmore Avenue,

St. Paul, Minnesota 55107 
 Attn: Bondholder Services - CAOT 2018-1 
 CarMax Auto Funding, LLC 

12800 Tuckahoe Creek Parkway 
 Richmond, Virginia 23238 

Attention: Treasurer 
 CarMax Auto Owner Trust 2018-1 
 c/o Wilmington Trust, National Association 

Rodney Square North 
 1100 North Market Street 

Wilmington, Delaware 19890-0001 
 Attention: Corporate Trust
Administration 
 Ladies and Gentlemen: 
 In
connection with our proposed purchase of Class      Notes (the “Class      Notes”) of CarMax Auto Owner Trust 2018-1 (the “Issuing Entity”), we
confirm that: 
 1.    We understand that the Class      Notes have not been registered under the Securities Act of
1933, as amended (the “1933 Act”), and may not be sold except as permitted in the following sentence. We understand and agree, on our own behalf and on behalf of any accounts for which we are acting as hereinafter stated, (x) that
such Class      Notes are being offered only in a transaction not involving any public offering within the meaning of the 1933 Act and (y) that such Class      Notes may be resold, pledged or transferred
only (i) to CarMax Auto Funding LLC (the “Depositor”), (ii) to an “accredited investor” as defined in Rule 501(a)(1),(2),(3) or (7) of Regulation D under the 1933 Act (an “Accredited Investor”) acting for its
own account (and not for the account of others) or as a fiduciary or agent for others (which others also are Accredited Investors unless the holder is a bank acting in its fiduciary capacity) that executes a certificate substantially in the form
hereof, (iii) so long as such Class      Note is eligible for resale pursuant to Rule 144A under the 1933 Act (“Rule 144A”), to a person whom we reasonably believe after due inquiry is a “qualified
institutional buyer” as defined in Rule 144A, acting for its own account (and not for the account of others) or as a fiduciary or agent for 

  
 Ex. G-1 








 
others (which others also are “qualified institutional buyers”) to whom notice is given that the resale, pledge or transfer is being made in reliance on Rule 144A or (iv) in a
sale, pledge or other transfer made in a transaction otherwise exempt from the registration requirements of the 1933 Act, in which case the Indenture Trustee shall require that both the prospective transferor and the prospective transferee certify
to the Indenture Trustee and the Depositor in writing the facts surrounding such transfer, which certification shall be in form and substance satisfactory to the Indenture Trustee and the Depositor. Except in the case of a transfer described in
clauses (i) or (iii) above, the Indenture Trustee shall require that a written opinion of counsel (which will not be at the expense of the Depositor, any Affiliate of the Depositor or the Indenture Trustee), satisfactory to the Indenture
Trustee and the Depositor, be delivered to the Indenture Trustee and the Depositor to the effect that such transfer will not violate the 1933 Act, and will be effected in accordance with any applicable securities laws of each state of the United
States. We will notify any purchaser of the Class      Notes from us of the above resale restrictions, if then applicable. We further understand that in connection with any transfer of the Class      Notes by
us that the Indenture Trustee and the Depositor may request, and if so requested we will furnish, such certificates and other information as they may reasonably require to confirm that any such transfer complies with the foregoing restrictions. 

2.    [CHECK ONE] 
 ☐    (a) We are an Accredited Investor acting for our own account (and not for the account of
others) or as a fiduciary or agent for others (which others also are Accredited Investors unless we are a bank acting in its fiduciary capacity). We have such knowledge and experience in financial and business matters as to be capable of evaluating
the merits and risks of our investment in the Class      Notes, and we and any accounts for which we are acting are each able to bear the economic risk of our or their investment for an indefinite period of time. We are acquiring
the Class      Notes or investment and not with a view to, or for offer and sale in connection with, a public distribution. 

☐    (b)
 We are a “qualified institutional buyer” as defined under Rule 144A under the 1933 Act and are acquiring the Class      Notes for our own account (and not for the account of others) or as a fiduciary or agent for
others (which others also are “qualified institutional buyers”). We are familiar with Rule 144A under the 1933 Act and are aware that the seller of the Class      Notes and other parties intend to rely on the statements
made herein and the exemption from the registration requirements of the 1933 Act provided by Rule 144A. 
 3.    If counsel
satisfactory to the Indenture Trustee has rendered an opinion to the effect that the Class      Notes to be transferred will be characterized as indebtedness for United States federal income tax purposes, either (i) we are
not acquiring the Class      Notes with the assets of any (A) “employee benefit plan” as defined in Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”) that is
subject to Title I of ERISA, (B) “plan” described in Section 4975(e)(1) of the Internal Revenue Code of 1986, as amended (the “Code”) that is subject to Section 4975 of the Code, (C) entity whose underlying assets
include plan assets by reason of a plan’s investment in the entity or (D) plan that is subject to any federal, state, local or non-U.S. law that is substantially similar to the prohibited transaction
provisions of ERISA or Section 4975 of the Code (“Similar Law”) (each, a “Plan”) or (ii) our acquisition 

  
 Ex. G-2 








 
and holding of the Class      Notes will not give rise to a nonexempt prohibited transaction under Section 406 of ERISA or Section 4975 of the Code or Similar Law.
We hereby acknowledge that no transfer of any Class      Note shall be permitted to be made to any transferee unless either (i) such transferee is not acquiring the Class      Note with the assets of any
Plan or (ii) the acquisition and holding of such Class      Note will not constitute or result in a nonexempt prohibited transaction under Section 406 of ERISA or Section 4975 of the Code or Similar Law. 

4.    Unless counsel satisfactory to the Indenture Trustee shall have rendered an opinion to the effect that the Class
     Notes to be transferred will be characterized as indebtedness for United States federal income tax purposes, we represent (i) that we are a United States Person (within the meaning of Section 7701(a)(30) of the
Code) and (ii) either (A) that we are not acquiring the Class      Notes with the assets of any Plan that is subject to Title I of ERISA or Section 4975 of the Code (“Plan Assets”) or (B) we are acquiring
the Class      Notes with the assets of a Plan that is not subject to Title I of ERISA or Section 4975 of the Code and the acquisition and holding of such Class      Note will not give rise to a nonexempt
prohibited transaction under Similar Law; and we acknowledge that unless the Indenture Trustee shall have received such an opinion, no transfer of any Class      Note shall be permitted to be made to any person who is not a
United States Person or who acquires such Class      Notes with Plan Assets and any such purported transfer in violation of these restrictions shall be null and void. 

5.    If we are acquiring the Class      Notes with the assets of a Plan subject to Title I of ERISA or
Section 4975 of the Code, we represent that (i) our decision to acquire the Class      Notes has been made on an arms’ length basis by a fiduciary of the Plan (the “Plan Fiduciary”); (b) the Seller, the
Depositor, the Servicer, the Trust, the sponsor, the Owner Trustee, the initial purchasers or any of their respective affiliates (collectively, the “Transaction Parties”) have not provided nor will provide advice with respect to the
acquisition of the notes by the Plan, other than to the Plan Fiduciary which is independent of the Transaction Parties, and the Plan Fiduciary either: (a) is a bank as defined in Section 202 of the Investment Advisers Act of 1940, as
amended (the “Advisers Act”), or similar institution that is regulated and supervised and subject to periodic examination by a U.S. state or U.S. federal agency, (b) is an insurance carrier which is qualified under the laws of more
than one U.S. state to perform the services of managing, acquiring or disposing of assets of an “employee benefit plan” as defined in Section 3(3) of ERISA or “plan” described in Section 4975 of the Code, (c) is an
investment adviser registered under the Advisers Act, or, if not registered an as investment adviser under the Advisers Act by reason of paragraph (1) of Section 203A of the Advisers Act, is registered as an investment adviser under the
laws of the U.S. state in which it maintains its principal office and place of business, (d) is a broker-dealer registered under the U.S. Securities Exchange Act of 1934, as amended or (e) holds, or has under its management or control,
total assets of at least U.S. $50 million (provided that this clause (e) shall not be satisfied if the Plan Fiduciary is an individual directing his or her own individual retirement account or plan account or relative of such individual);
(iii) the Plan Fiduciary is capable of evaluating investment risks independently, both in general and with respect to particular transactions and investment strategies, including the acquisition by the Plan of the Class     
Notes; (iv) the Plan Fiduciary is a “fiduciary” with respect to the Plan within the meaning of Section 3(21) of ERISA, Section 4975 of the Code, or both, and is responsible for exercising independent judgment in evaluating
the Plan’s acquisition 

  
 Ex. G-3 








 
of the Class      Notes; (v) none of the Transaction Parties has exercised any authority to cause the Plan to invest in the Class      Notes or to
negotiate the terms of the Plan’s investment in the Class      Notes; and (vi) the Plan Fiduciary has been informed by the Transaction Parties: (x) that none of the Transaction Parties are undertaking to provide
impartial investment advice or to give advice in a fiduciary capacity in connection with the Plan’s acquisition of the Class      Notes and (y) of the existence and nature of the Transaction Parties’ financial
interests in the Plan’s acquisition of the Class      Notes as disclosed in the prospectus for the Class      Notes. We hereby acknowledge that no transfer of any Class      Note shall
be permitted to be made to any transferee that is a Plan subject to Title I of ERISA or Section 4975 of the Code unless such transferee satisfies the foregoing requirements. 

6.    We understand that the Issuing Entity, the Indenture Trustee, the Depositor and others will rely upon the truth and accuracy of the
foregoing acknowledgments, representations and agreements, and we agree that if any of the acknowledgments, representations and warranties deemed to have been made by us by our purchase of the Class      Notes, for our own
account or for one or more accounts as to each of which we exercise sole investment discretion, are no longer accurate, we shall promptly notify the Depositor. 

7.    You are entitled to rely upon this letter and you are irrevocably authorized to produce this letter or a copy hereof to any
interested party in any administrative or legal proceeding or official inquiry with respect to the matters covered hereby. 
  

			
	Very truly yours,
	
	[NAME OF PURCHASER]
		
	By:	 	                                     
                                         
                 
		 	Name:
		 	Title:


 Date:
                     

  
 Ex. G-4