Exhibit 31

CERTIFICATION PURSUANT TO

Rule 15d-14(d)

I, Timothy P. Booker,
certify that:

| |    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
| | -- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
| | 1. | I have reviewed this
 report on Form 10-K and all reports on Form 10-D required to be filed in
 respect of the period covered by this report on Form 10-K of USAA Auto Owner
 Trust 2009-2 (the Exchange Act periodic reports);                                                                                                                                                                                                                                                                                                                                               
| |    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
| | 2. | Based on my knowledge, the
 Exchange Act periodic reports, taken as a whole, do not contain any untrue
 statement of a material fact or omit to state a material fact necessary to
 make the statements made, in light of the circumstances under which such
 statements were made, not misleading with respect to the period covered by
 this report;                                                                                                                                                                                                                          
| |    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
| | 3. | Based on my knowledge, all
 of the distribution, servicing and other information required to be provided
 under Form 10-D for the period covered by this report is included in the
 Exchange Act periodic reports;                                                                                                                                                                                                                                                                                                                                                              
| |    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
| | 4. | I am responsible for
 reviewing the activities performed by the servicer and based on my knowledge
 and the compliance review conducted in preparing the servicer compliance
 statement required in this report under Item 1123 of Regulation AB, and
 except as disclosed in the Exchange Act periodic reports, the servicer has
 fulfilled its obligations under the servicing agreement in all material
 respects; and                                                                                                                                                       
| |    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
| | 5. | All of the reports on
 assessment of compliance with servicing criteria for asset-backed securities
 and their related attestation reports on assessment of compliance with
 servicing criteria for asset-backed securities required to be included in
 this report in accordance with Item 1122 of Regulation AB and Exchange Act
 Rules 13a-18 and 15d-18 have been included as an exhibit to this report,
 except as otherwise disclosed in this report. Any material instances of
 noncompliance described in such reports have been disclosed in this report on
 Form 10-K.

In giving the certifications
above, I have reasonably relied on information provided to me by the following
unaffiliated parties: The Bank of New York Mellon; FDI Collateral Management.

| |                                                       | 
| | ----------------------------------------------------- | 
| | /s/ TIMOTHY P. BOOKER                                
| |                                                       | 
| | Name: Timothy P. Booker                              
| | Title: Vice President                                
| | (Senior Officer in Charge
 of the Servicing Function)

March 31, 2010

---