Product Safety Recall
N192268490 Increased Brake Pedal Effort
Release Date:
Attention:

September 2019

Revision:00

It is a violation of Federal law for a dealer to deliver a new motor vehicle or any new or used item of motor
vehicle equipment (including a tire) covered by this notification under a sale or lease until the defect ornoncompliance is remedied.
All involved vehicles that are in dealer inventory must be held and not delivered to customers, dealer
traded, or used for demonstration purposes until the repair contained in this bulletin has been performedon the vehicle.

Make
Cadillac
Chevrolet
Chevrolet
Chevrolet
GMCGMC

ModelEscalade
Silverado LD
Suburban
Tahoe
Sierra LDYukon, Yukon XL

Model Year
FromTo2015201720142018
2015
2018
2015
2018
2014
2018
2015
2018

RPO

Description

Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Managementsystem. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections
and/or repairs.
Condition

Correction

General Motors has decided that a defect which relates to motor vehicle safety exists in certain 20142018 model year Cadillac Escalade, Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, GMC
Sierra, and GMC Yukon vehicles. In some circumstances, these vehicles may have a condition in which
the engine-mounted mechanical vacuum pump output may decrease over time, decreasing the amountof vacuum/power brake assist.
Dealers will reprogram the electronic brake control module with a new calibration that will improve how
the system utilizes the hydraulic brake boost assist function when vacuum assist is depleted.

Parts
No parts are required for this repair.
Warranty Information
Labor
Operation
9104606*
9104605*

Description
Verified Module Software or Calibration Level: Module Is
Programmed with Same Level Software or Calibration
Electronic Brake Control Module Reprogramming with SPS

Labor
Time
0.2

Trans.
TypeZFAT

Net
Item
N/A

0.3

ZFAT

N/A

* To avoid warranty transaction rejections, carefully read and follow the instructions below:•The SPS Warranty Claim Code must be accurately entered in the “SPS Warranty Claim Code” field of the transaction.

•When more than one Warranty Claim Code is generated for a programming event, it is required to document all
Warranty Claim Codes in the “Correction” field on the job card. Dealers must also enter one of the codes in the “SPS
Warranty Claim Code” field of the transaction, otherwise the transaction will reject. It is best practice to enter theFINAL code provided by SPS.

Warranty Claim Code Information Retrieval
If the SPS Warranty Claim Code was not recorded on the Job Card, the code can be retrieved in the SPS system asfollows:
1.

Open TIS on the computer used to program the vehicle.

2.

Select and start SPS.

3.

Select Settings.

4.

Select the Warranty Claim Code tab.

The VIN, Warranty Claim Code and Date/Time will be listed on a roster of recent programming events. If the code isretrievable, dealers should resubmit the transaction making sure to include the code in the SPS Warranty Claim Codefield.
Copyright 2019 General Motors. All Rights Reserved.

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Product Safety Recall
N192268490 Increased Brake Pedal Effort
Service Procedure
Note: Carefully read and follow the instructions below.

•Ensure the programming tool is equipped with the latest software and is securely connected to the data link connector.
If there is an interruption during programming, programming failure or control module damage may occur.

•Stable battery voltage is critical during programming. Any fluctuation, spiking, over voltage or loss of voltage willinterrupt programming. Install a GM Authorized Programming Support Tool to maintain system voltage. Refer towww.gmdesolutions.com for further information. If not available, connect a fully charged 12 V jumper or booster
pack disconnected from the AC voltage supply. DO NOT connect a battery charger.

•Turn OFF or disable systems that may put a load on the vehicles battery such as; interior lights, exterior lights(including daytime running lights), HVAC, radio, etc.

•Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M)
system status indicators to NO.

5164840

Note: If the Same Calibration/Software Warning is noted on the SPS Summary screen, record the warranty claim code
(WCC) and select OK and follow screen instructions. After a successful programming event, the WCC is located in theService Programming System dialogue box of the SPS Summary screen. No further action is required. Refer to theWarranty section of the bulletin.
1.

Reprogram the Electronic Brake Control Module. Refer to Electronic Brake Control Module Programming and Setup inSI.

5164843

2.

Record SPS Warranty Claim Code on job card for warranty transaction submission.

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Product Safety Recall
N192268490 Increased Brake Pedal Effort
Dealer Responsibility – For USA & Export (USA States, Territories, and Possessions)
It is a violation of Federal law for a dealer to deliver a new motor vehicle or any new or used item of motor vehicle
equipment (including a tire) covered by this notification under a sale or lease until the defect or noncompliance isremedied.
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a recall of this typemust be adequately repaired within a reasonable time after the customer has tendered it for repair. A failure to repair
within sixty days after tender of a vehicle is prima facie evidence of failure to repair within a reasonable time. If thecondition is not adequately repaired within a reasonable time, the customer may be entitled to an identical or reasonably
equivalent vehicle at no charge or to a refund of the purchase price less a reasonable allowance for depreciation. To
avoid having to provide these burdensome remedies, every effort must be made to promptly schedule an appointment
with each customer and to repair their vehicle as soon as possible. In the recall notification letters, customers are told
how to contact the US National Highway Traffic Safety Administration if the recall is not completed within a reasonable
time.
Dealer Responsibility – AllAll new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers' possession
and subject to this recall must be held and inspected/repaired per the service procedure of this bulletin before customers
take possession of these vehicles. Involved vehicles must be held and not delivered to customers, dealer-traded,
released to auction, used for demonstration, or any other purpose.
All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System(CPOIS) will be de-certified and must be held and remedied per the service procedure in this bulletin. Upon submitting
an accepted/paid warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified
for sale within the CPOIS system, or once again be used in the CTP program.
Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of mileage, age of vehicle,
or ownership, from this time forward.
Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer
information indicated on the dealer listing, are to be contacted by the dealer. Arrangements are to be made to make therequired correction according to the instructions contained in this bulletin. Recall follow-up cards should not be used forthis purpose, since the customer may not as yet have received the notification letter.
In summary, whenever a vehicle subject to this recall enters your vehicle inventory or is in your dealership for service inthe future, you must take the steps necessary to be sure the recall correction has been made before selling or releasing
the vehicle.
Dealer Reports
For dealers with involved vehicles, a listing with involved vehicles has been prepared and will be provided to U.S. andCanadian dealers through the GM GlobalConnect Recall Reports or sent directly to export dealers. The listing may
contain customer names and addresses obtained from Motor Vehicle Registration Records. The use of such motor
vehicle registration data for any purpose other than follow-up necessary to complete this recall is a violation of law inseveral states/provinces/countries. Accordingly, you are urged to limit the use of this report to the follow-up necessary tocomplete this recall.
Courtesy Transportation – For USA & Canada
Courtesy transportation is available for customers whose vehicles are involved in a product program and still within thewarranty coverage period. See General Motors Service Policies and Procedures Manual, Sections 1.4 and 6.1.10, forcourtesy transportation program details.
Customer Notification
USA & Canada - General Motors will notify customers of this recall on their vehicle.
Export - Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor
Vehicle Safety Act.
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians ofconditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained
technicians have the tools, equipment, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT
assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your dealer for information on whether yourvehicle may benefit from the information.

We Support
Voluntary Technician
Certification

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