Product Safety Recall N192268490 Increased Brake Pedal Effort – 2014-2018 Cadillac Chevrolet GMC

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Product Safety Recall
N192268490 Increased Brake Pedal Effort
Copyright 2019 General Motors. All Rights Reserved. Page 1 of 6
Release Date: September 2019 Revision: 01
Revision Description: This bulletin is being revised to add the customer letter. Please discard all previous copies
of bulletin N192268490.
Attention: 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 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 performed
on the vehicle.
Make Model
Model Year
From To RPO Description
Cadillac Escalade 2015 2017
Chevrolet Silverado LD 2014 2018
Chevrolet Suburban 2015 2018
Chevrolet Tahoe 2015 2018
GMC Sierra LD 2014 2018
GMC Yukon, Yukon XL 2015 2018
Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Management
system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections
and/or repairs.
Condition General Motors has decided that a defect which relates to motor vehicle safety exists in certain 2014-
2018 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 amount
of vacuum/power brake assist.
Correction 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 Description
Labor
Time
Trans.
Type
Net
Item
9104606* Verified Module Software or Calibration Level: Module Is
Programmed with Same Level Software or Calibration
0.2 ZFAT N/A
9104605* Electronic Brake Control Module Reprogramming with SPS 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 the
FINAL 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 as
follows:
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.
Product Safety Recall
N192268490 Increased Brake Pedal Effort
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The VIN, Warranty Claim Code and Date/Time will be listed on a roster of recent programming events. If the code is retrievable, dealers should resubmit the transaction making sure to include the code in the SPS Warranty Claim Code field.
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 will interrupt programming. Install a GM Authorized Programming Support Tool to maintain system voltage. Refer to www.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 the Service Programming System dialogue box of the SPS Summary screen. No further action is required. Refer to the Warranty section of the bulletin.
1. Reprogram the Electronic Brake Control Module. Refer to Electronic Brake Control Module Programming and Setup in SI.
Product Safety Recall
N192268490 Increased Brake Pedal Effort
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5164843
2. Record SPS Warranty Claim Code on job card for warranty transaction submission.
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 is remedied.
The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a recall of this type must 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 the condition 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 – All
All 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 the required correction according to the instructions contained in this bulletin. Recall follow-up cards should not be used for this 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 in the 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. and Canadian dealers through the GM GlobalConnect Recall Reports or sent directly to export dealers. The listing may
Product Safety Recall
N192268490 Increased Brake Pedal Effort
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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 in several states/provinces/countries. Accordingly, you are urged to limit the use of this report to the follow-up necessary to complete this recall.
Courtesy Transportation – For USA & Canada
Courtesy transportation is available for customers whose vehicles are involved in a product program and still within the warranty coverage period. See General Motors Service Policies and Procedures Manual, Sections 1.4 and 6.1.10, for courtesy 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 of conditions 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 your vehicle may benefit from the information.
We Support Voluntary Technician Certification
Product Safety Recall
N192268490 Increased Brake Pedal Effort
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IMPORTANT SAFETY RECALL
October 2019
This notice applies to your vehicle, VIN: _____________________________________
Dear General Motors Customer:
This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act.
General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 2014-2018 model year Cadillac Escalade, Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, and GMC Yukon vehicles. As a result, GM is conducting a safety recall. We apologize for this inconvenience. However, we are concerned about your safety and continued satisfaction with our products.
IMPORTANT
• Your vehicle is involved in GM safety recall N192268490.
• Schedule an appointment with your GM dealer.
• This service will be performed for you at no charge.
Why is your vehicle being recalled?
These vehicles may have a condition in which the engine-mounted mechanical vacuum pump output may decrease over time, decreasing the amount of vacuum/power brake assist. If the vacuum level drops, customers may experience increased brake pedal effort, hard brake pedal, and/or potentially increased stopping distance, increasing the risk of a crash. The Driver’s Information Center (DIC) “Service brake assist” alert will activate 2-5 minutes after the vacuum level drops, and a Diagnostic Trouble Code (DTC) will also be set. The condition is more prevalent at low speed when softly applying the brakes.
What will we do?
These vehicles are equipped with a secondary, hydraulic power brake assist system that activates to provide power brake assist if the vacuum drops, however, as calibrated the hydraulic brake boost assist is limited at lower speeds. Your GM dealer 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. This service will be performed for you at no charge. Because of service scheduling requirements, it is likely that your dealer will need your vehicle longer than the actual time of approximately 30 minutes.
What should you do?
You should contact your GM dealer to arrange a service appointment as soon as possible.
Do you have questions?
If you have questions or concerns that your dealer is unable to resolve, please contact the appropriate Customer Assistance Center at the number listed below.
Division
Number
Text Telephones (TTY)
Cadillac
1-866-982-2339
1-800-833-2622
Chevrolet
1-800-630-2438
1-800-833-2438
GMC
1-866-996-9463
1-800-462-8583
Puerto Rico – English
1-800-496-9992
Puerto Rico – Español
1-800-496-9993
Virgin Islands
1-800-496-9994
If after contacting your dealer and the Customer Assistance Center, you are still not satisfied we have done our best to remedy this condition without charge and within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE, Washington, DC 20590, or call the toll-free
Product Safety Recall
N192268490 Increased Brake Pedal Effort
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Vehicle Safety Hotline at 1.888.327.4236 (TTY 1.800.424.9153), or go to https://www.safercar.gov. The National Highway Traffic Safety Administration Campaign ID Number for this recall is 19V645.
Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days.
Maryann L. Combs
Vice President
Global Vehicle Safety
GM Recall: N192268490

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GLOBAL SAFETY FIELD INVESTIGATIONS
DCS5153
URGENT – DISTRIBUTE IMMEDIATELY
Date: September 20, 2019
Subject: N192268490-01 – Safety Recall
Increased Brake Pedal Effort
Customer Letter Added
Models: Certain 2014 – 2018
Cadillac Escalade, Escalade ESV
Chevrolet Silverado
Chevrolet Suburban
Chevrolet Tahoe
GMC Sierra
GMC Yukon, Yukon XL
To: All General Motors Dealers
Bulletin N192268490-01 has been revised to include a copy of the customer notification letter. Please discard all copies of bulletin N192268490.
Customer Letter Mailing
The customer letter mailing will begin in October.
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GLOBAL SAFETY FIELD INVESTIGATIONS

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GLOBAL SAFETY FIELD INVESTIGATIONS
DCS5130
URGENT – DISTRIBUTE IMMEDIATELY
Date: September 6, 2019
Subject: N192268490 – Safety Recall
Increased Brake Pedal Effort
Models: Certain 2014 – 2018
Cadillac Escalade, Escalade ESV
Chevrolet Silverado
Chevrolet Suburban
Chevrolet Tahoe
GMC Sierra
GMC Yukon, Yukon XL
To: All General Motors Dealers
General Motors is releasing Safety Recall N192268490 today. The total number of U.S. vehicles involved is approximately 3,387,136. Please see the attached bulletin for details.
Question and Answer Document (Q&A)
Attached to this message you will find a document that addresses the ten most likely questions customers may have regarding this Safety Recall. Please use this information as an aid to confidently answer customer concerns.
Customer Letter Mailing
The customer letter mailing will begin in the near future.
Global Warranty Management (GWM)
The Required Field Action section on the Investigate Vehicle History (IVH) screen will be updated September 6, 2019. A list of involved vehicles is attached to this message. Please hold all warranty transactions until IVH has been updated.
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GLOBAL SAFETY FIELD INVESTIGATIONS

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