GENERAL MOTORS
DCS6957
URGENT - DISTRIBUTE IMMEDIATELY
Date:

July 30, 2024

Subject: REVISION: N242436240-03 – Customer Satisfaction Program
Multiple Module Reprogramming
Revised Service Procedure
Models: 2024 Chevrolet Blazer EV
This bulletin is being revised being revised to update the Service Procedure with
vehicle wide programming. Please discard all previous copies of N242436240.

END OF MESSAGE

Customer Satisfaction Program
N242436240 Multiple Module Reprogramming
Release Date:
Revision Description:
Attention:

July 2024

Revision:

03

This bulletin is being revised to update the Service Procedure with vehicle wide
programming. Please discard all previous copies of N242436240.

Vehicles involved in this program were placed on stop delivery December 22, 2023 under N232434590.
Once the service procedure contained in this bulletin has been performed on the vehicle, the vehicle is
released from stop delivery and the vehicle can be delivered to the customer.
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.
This program is in effect until March 31, 2026.

Make
Chevrolet

Model
Blazer EV

Model Year
From
To
2024
2024

RPO

Description

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
Correction

Certain 2024 model year Chevrolet Blazer EV vehicles may require software updates that improve the
customer experience and optimize future over-the-air updates.
Dealers will perform a comprehensive software update.

Parts
No parts are required for this repair.
Warranty Information
Labor
Operation
9107273
9500001*

Description
Floor Plan Reimbursement – NEW INVENTORY ONLY
Vehicle Wide Programming

ADD: To Program Radio (Includes USB File Transfer)
ADD: Set up
Important:

Labor Time
N/A
Use Actual
Programming
Time

Trans.
Type
ZFAT

Net
Item
**

ZFAT

N/A

0.5
0.2

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

Note: For issues related to Warranty Administration, refer to bulletin 24-NA-132.

6125814

Copyright 2024 General Motors. All Rights Reserved.

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Customer Satisfaction Program
N242436240 Multiple Module Reprogramming
• The Warranty Claim Code and Total Time from the 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 information on submitting Vehicle Wide Programming field action claims, please refer to Warranty Administration
Bulletin (24-NA-132).
Warranty Claim Code Information Retrieval

6693878

If the Warranty Claim Code was not recorded on the Job Card, the code can be retrieved in the SPS2 system as
follows:
1.
2.
3.
4.

Open TLC on the computer used to program the vehicle.
Select and start SPS2.
Select Settings (1).
Select the Warranty Claim Code tab (2).

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.
Floor Plan Reimbursement – NEW INVENTORY ONLY
**USA & Canada Dealers Only – For vehicles eligible for floor plan reimbursement, the amount should be submitted in
Net Item/Miscellaneous. This amount should represent the product of the vehicle’s average daily interest rate (see
table below) multiplied by the actual number of days the vehicle was in dealer inventory and not available for sale.
This reimbursement is limited to the number of days from the date of the stop delivery message (December 22, 2023)
to the date the repair is completed, and the vehicle is ready for sale (not to exceed 76 days).
Vehicle
2024 Chevrolet Blazer EV

Floor Plan Reimbursement Amount
USA
Canada
$20.00
$11.50

Service Procedure
Caution: Before downloading the update files, be sure the computer is connected to the internet through a network cable
(hardwired). DO NOT DOWNLOAD or install the files wirelessly. If there is an interruption during programming,
programming failure or control module damage may occur.
Note: Carefully read and follow the instructions below.

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Customer Satisfaction Program
N242436240 Multiple Module Reprogramming
•

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.

•

Follow the on-screen prompts regarding ignition power mode but ensure that anything that drains excessive power
(exterior lights, HVAC blower motor, etc) is off.

•

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

Important: The service technician always needs to verify that the VIN displayed in the TLC left side drop down menu and
the top center window match the VIN plate of the vehicle to be programmed prior to using Service Programming System
2 (SPS2) for programming or reprogramming a module.

•

For the TLC application, service technicians need to always ensure that the power mode (ignition) is “ON” before
reading the VIN from the vehicle’s VIN master module and that they do not select a VIN that is already in the TLC
application memory from a previous vehicle.

•

If the VIN that shows up in the TLC top center window after correctly reading the VIN from the vehicle does not match
the VIN plate of the vehicle, manually type in the VIN characters from the vehicle VIN plate into the TLC top center
window and use these for programming or reprogramming the subject module with the correct vehicle VIN and
software and/or calibrations.

Caution: Be sure the VIN selected in the drop-down menu (1) is the same as the vehicle connected (2) before beginning
programming.

5743643

Important: If the vehicle VIN DOES NOT match, the message below will be shown.

5877000

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Customer Satisfaction Program
N242436240 Multiple Module Reprogramming

5644477

Important: Techline Connect screens shown above.
Important: Vehicle Wide Programming will only work with a wired MDI2 connection. It is also necessary to
remove any wireless dongles from the computer being used as these will not allow the Vehicle Wide
Programming to be selectable. If the Vehicle Wide Programming is not selectable with a wired MDI2,
confirm it shows disconnected in SPS2 and then (if needed) exit out of TLC and log-in again.
Important: It is critical to remove ALL aftermarket devices connected to the DLC and all USB devices
connected to the vehicle USB ports. Additionally, all wireless Bluetooth USB connectors (mouse, keyboard,
etc.) MUST be disconnected from the computer prior to opening Techline Connect.
1.

Perform Vehicle Wide Programming. Refer to: 24-NA-113 in SI. Please read the bulletin in its entirety prior to
programming the vehicle.

2.

Verify all applicable modules have successfully updated, excluding the A11 Radio which is NOT supported by Vehicle
Wide Programming.
•

If any applicable module has NOT successfully updated:
2.1 Attempt Vehicle Wide Programming a second time.
2.2 If any applicable module fails the second attempt, attempt to program the module
individually through SPS. If the failure continues, contact Techline Customer Service
Center.

•

If all modules have successfully updated, proceed to step 3.

6693875

Note: The screenshot above is an example of Vehicle Wide Programming and may not be indicative of the specific
modules that are being programmed. VIN information has been blacked out.
Important: To avoid warranty transaction rejections, you MUST record the Total Time provided on the Warranty
Claim Code (WCC) screen shown above on the job card.
3.

Print a copy of the Warranty Claim Code screen and attach to the repair order. It is critical to record the total time in
order to close out the field action.

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Customer Satisfaction Program
N242436240 Multiple Module Reprogramming
4.

Reprogram the A11 Radio. Refer to A11 Radio Programming and Setup in SI.

5.

Perform the A11 Radio USB File Transfer. Refer to A11 Radio Programming and Setup in SI.

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 March 31, 2026. 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.
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 March 31, 2026, 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 & Export
For dealers with involved vehicles, a listing has been prepared and will be available through GM GlobalConnect Maxis
Field Action Reports or sent directly to export dealers. 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.

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

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