GENERAL MOTORS
DCS7350
URGENT - DISTRIBUTE IMMEDIATELY
Date:

October 22, 2025

Subject: N252521980 - Customer Satisfaction Program
Brake System Control Module Update
Models: 2023 - 2024 Cadillac LYRIQ
2024 Chevrolet Blazer EV
2023 Chevrolet Colorado
2023 GMC Canyon

General Motors is releasing Customer Satisfaction Program N252512980
today.

What Should Dealers Do: Dealers should review IVH or the Dealer Maxis reports
for open VINs in their inventory. Dealers can view the attached bulletin and it
will also be displayed in Service Information tomorrow.
A Stock VIN list is not included as our records show there are no vehicles in
dealer new inventory.
For dealers with involved vehicles, a listing has been prepared and will be
available through GM Global Connect Maxis Field Action Reports or GWM Field
Action Batch Search Report. The Inventory tab of the dealer reports will contain
VINs that apply to this field action. This information is intended to assist dealers
with the PROMPT COMPLETION of these vehicles. The Customer In-Service
tab will contain customer names and addresses from Motor Vehicle Registration
Records. The use of such motor vehicle registration data for any purpose other
than follow-up necessary to complete this field action may be a violation of law in
several states.
END OF MESSAGE

Customer Satisfaction Program
N252521980 Brake System Control Module Update
Release Date:
Attention:

October 2025

Revision:

00

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.
For EV Involved Vehicles: The repairs outlined in this bulletin must only be completed at an authorized
EV dealer and repairs must be performed by a technician who has successfully completed the
applicable technical training required to perform this repair.
Investigate Vehicle History (IVH) in the GM Global Warranty Management system MUST always
be checked to confirm vehicle involvement and MUST be in OPEN status prior to beginning any
required inspections and/or repairs. DO NOT use Service Information with VIN search, as it will
not verify the VIN eligibility for field actions.
This program is in effect until November 30, 2027.
Model Year

Make
Cadillac
Chevrolet
Chevrolet
GMC

Model
LYRIQ
Blazer EV
Colorado
Canyon

From
2023
2024
2023
2023

To
2024
2024
2023
2023

Investigate Vehicle History (IVH) in the GM Global Warranty Management system MUST always be checked to confirm
vehicle involvement and MUST be in OPEN status prior to beginning any required inspections and/or repairs. DO NOT
use Service Information with VIN search, as it will not verify the VIN eligibility for field actions.

Condition
Correction

Certain vehicles listed above, may have a condition in which the Brake System Control Module does not
have the latest software.
Dealers are to reprogram the Brake System Control Module.

Parts
Quantity
1
1
1
1
1
2
2
2

Part Name
Brake Master Cylinder w/ Electronic Brake Booster
Brake Master Cylinder w/ Electronic Brake Booster
Brake Master Cylinder w/ Electronic Brake Booster
Brake Master Cylinder w/ Electronic Brake Booster
Pedal Clip
DOT 4 Brake Fluid (US & Mexico)
DOT 4 Brake Fluid (Canada)
DOT 4 Fluid (Korea)

Part No.
85868688
85848147
85774350
85850705
13285340
19299570
19299571
93746642

Note: Use the VIN and the GM Electronic Parts Catalog (EPC) to determine which Brake System Control Module to order.
Colorado/Canyon will not require the Pedal Clip, as they use a reusable bolt.
Reminder: Parts may be removed from SPRINT and Retail Inventory Management (RIM) and be non-returnable. Dealers
should review the affected parts to confirm RIM managed status. Parts may have quantity limiters in effect. There are a
small number of vehicles anticipated that will need this fix. Due to the limited initial parts availability, dealers are
encouraged not to order these parts for use as shelf stock.

Page 1 of 5

Customer Satisfaction Program
N252521980 Brake System Control Module Update
Warranty Information
Labor
Operation
9107833*
9107834*

9108113

Description
BSCM Programming and Hydraulic Test Only – No Further Action
Required
Verified Module Software or Calibration Level: Module Is
Programmed with Same Level Software or Calibration + BSCM
Hydraulics Test
Brake Master Cylinder w/ Electronic Brake Booster Replacement +
Brake System Hydraulics Test
ADD: Brake System Hydraulics Test (Applies to all vehicles)
Lyriq
Colorado/Canyon
Blazer EV

Labor
Time
0.5

Trans.
Type

Net
Item

ZFAT

N/A

0.4

0.2

5.4
3.2
4.7

Important: * To avoid warranty transaction rejections, carefully read and follow the instructions below:

6125814

• The Warranty Claim Code from the LAST programming event must be accurately entered in the “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
“Warranty Claim Code” field of the transaction, otherwise the transaction will reject. It is best practice to enter
the FINAL code provided by SPS2.

•

For more information about Warranty Claim Codes and retrieving a lost code, refer to 25-NA-281 Information
on SPS Warranty Claim Code Submission and Retrieval in SI.

Service Procedure

7001095
IMPORTANT: The service technician always needs to verify that the VIN displayed in the TLC left side drop down menu
(1) and the top center window (2) match the VIN plate of the vehicle to be programmed prior to using Service
Programming System 2 (SPS2) for programming or reprogramming a module.
IMPORTANT: Failure to follow all notes and cautions within the programming and setup document may result
programming error.
1.

Reprogram the Brake System Control Module. Refer to K160 Brake System Control Module Reprogramming in SI.

Page 2 of 5

Customer Satisfaction Program
N252521980 Brake System Control Module Update

7001097
Important: To avoid warranty transaction rejections, you MUST record the warranty claim code provided on the Warranty
Claim Code (WCC) screen shown above on the job card. Refer to callout 1 above for the location of the WCC on the
screen.
2.

Record SPS Warranty Claim Code on job card for warranty transaction submission. Refer to 25-NA-281 Information
on SPS Warranty Claim Code Submission and Retrieval in SI.

Note: Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M)
system status indicators to NO.
3.

Connect the MDI to the vehicle.
•

Open GDS.

•

In the Brake System Control Module, clear all codes.

•

Select Brake Hydraulics Test, then on the next screen select Brake Hydraulics Test again.

•

Follow the on-screen instructions until the test is complete.

•

Run the Brake Hydraulics Test a total of THREE times.

4.

Check the Brake System Control Module to see if it has any codes.

5.

If any U-codes are present in the Brake System Control Module, follow the SI Diagnostic Chart for the code.
•

If any additional repairs or part replacement is required for DTCs present in the Brake System Control Module,
perform it under a separate warranty line if the vehicle is under warranty. If the vehicle is NOT under warranty,
claim the appropriate warranty labor op on a separate line for the repair and H-route the transaction for approval
with a copy of this field action attached.

6.

If the Brake System Control Module has any remaining non-U codes after step 4, replace the Brake Master Cylinder
with Electronic Brake Booster. Refer to Brake Master Cylinder – With Electronic Brake Booster and Electronic Brake
Control Module Replacement in SI

7.

Clear codes in the Brake System Control Module.

8.

Run the Brake System Hydraulics Test one more time referencing the instructions Step 3.

9.

If any codes return in the Brake System Control Module, perform diagnostics for the codes.
•

If any additional repairs or part replacement is required for DTCs present in the Brake System Control Module,
perform it under a separate warranty line if the vehicle is under warranty. If the vehicle is NOT under warranty,
claim the appropriate warranty labor op on a separate line for the repair and H-route the transaction for approval
with a copy of this field action attached.

10. Once the vehicle is fully repaired and has no remaining codes in the Brake System Control Module, you may close
this field action.
Programming/Techline Support:
For assistance, Techline Customer Support Center (TCSC) can be contacted using the applicable methods below.

•

For US ONLY: Assistance can be provided by using the Dealer Case Management (DCM) portal in
GlobalConnect. If additional support is needed once the DCM case is created, contact TCSC at 1-800-828-6860.
For US only a DCM case is required for phone support.

•

For Canada: Contact TCSC at 1-800-828-6860 (English) or 1-800-503-3222 (French).

•

For all other regions: Contact your regional Technical Assistance team for Global Techline Support.
Page 3 of 5

Customer Satisfaction Program
N252521980 Brake System Control Module Update

Dealer Responsibility
All new, used, GM Certified Pre-Owned (CPO), courtesy transportation vehicles, dealer shuttle vehicles, CarBravo, etc.
in dealers' possession and subject to this field action 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 Pre-Owned (CPO) vehicles currently in the dealers’ inventory within the SHIFT Digital system 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 SHIFT Digital system, or once again be used in the Courtesy Transportation Program.
Dealers are to service all vehicles subject to this program at no charge to customers, regardless of mileage, age of vehicle,
or ownership, through the end date as noted in the Attention box. Customers who have recently purchased vehicles sold
from your vehicle inventory, and for which there is no customer information indicated on the involved vehicle 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. A copy of the customer letter is provided in this bulletin for your use in contacting customers.
Program 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 program enters your vehicle inventory or is in your facility for service
through the end date as noted in the Attention box, you must take the steps necessary to be sure the program correction
has been made before selling or releasing the vehicle.
Dealer Reports – For USA
For dealers with involved vehicles, a listing has been prepared and will be available through GM Global Connect Maxis
Field Action Reports or GWM Field Action Batch Search Report. The Inventory tab of the dealer reports will contain
VINs that apply to this field action. This information is intended to assist dealers with the PROMPT COMPLETION of
these vehicles. The Customer In-Service tab will contain customer names and addresses from Motor Vehicle
Registration Records. The use of such motor vehicle registration data for any purpose other than follow-up necessary
to complete this field action may be a violation of law in several states.
Courtesy Transportation
USA - For repairs covered under this Field Action, Courtesy Transportation can be made available ONLY if the
customer/vehicle qualify for Courtesy Transportation per Bulletin 07-00-89-037.
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 for courtesy
transportation program details. Refer to the most current Home Office Letter (YYYY-604) on the Courtesy
Transportation Program for details.
Customer Notification
USA & Canada - General Motors will notify customers of this program on their vehicle (see copy of sample customer letter
included with this bulletin).
Export - Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor
Vehicle Safety Act. For owners outside these areas, dealers should notify customers using the attached sample letter.

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

Page 4 of 5

Customer Satisfaction Program
N252521980 Brake System Control Module Update

This notice applies to your vehicle, VIN: ________________________________
Dear General Motors Customer:
We have learned that your GM vehicle may have a condition in which the Brake System Control Module does not have
the latest software.
Your satisfaction with your vehicle is very important to us, so we are announcing a program to prevent this condition or,
if it has occurred, to fix it.
What We Will Do: Your GM dealer will reprogram the Brake System Control Module. This service will be performed
for you at no charge until November 30, 2027. After that, any applicable warranty will apply.
What You Should Do: To limit any possible inconvenience, we recommend that you contact your dealer as soon as
possible to schedule an appointment for this repair. When scheduling your appointment, confirm with the dealer that
they are an EV certified dealer.
You may schedule your vehicle for repair using the QR code below. For more information about your vehicle, or if you
have questions or concerns that your dealer is unable to resolve, please visit gm.com/service. You can also use your
preferred voice assistant (for example, “Please go to GM.com”), or call the Buick, Chevrolet or GMC Customer
Assistance Center at 1-866-467-9700. For Cadillac, please call 1-800-333-4223.
You may schedule your vehicle for repair using the QR code below. For more information about your vehicle, or if you
have questions or concerns that your dealer is unable to resolve, please visit gm.com/service. You can also use your
preferred voice assistant (for example, “Please go to GM.com”), or call the Buick, Chevrolet or GMC Customer
Assistance Center at 1-866-467-9700. For Cadillac, please call 1-800-333-4223.
We truly appreciate you taking the time to update your vehicle as we know your time is valuable. We want you to know
that we will do our best, throughout your ownership experience, to ensure that your GM vehicle provides you many
miles of enjoyable driving.
Neelie O’Connor
Global Executive Director
Customer Experience Operations
Scan here to
locate a dealer.

N252521980

Page 5 of 5