10. If an unsuccessful programming event occurs, refer to “Unsuccessful Programming” at the end of this
service procedure.
Note: Once the update is initiated, there is no need to monitor the progress.
Note: If no instructions immediately appear on the infotainment display, select the following menu options:
•

Home

•

Settings

•

System

•

Updates

11. Upon completion of programming, remove the USB drive.
Note: If you receive an Update Failed screen, remove the USB, turn the vehicle OFF, and return to step 8. The update
should continue where it stopped.
Note: The radio may display “Recovery Mode. Please Calibrate Device.”
12. Restart Techline Connect.
13. Access the Service Programming System (SPS) and follow the on-screen instructions.
14. On the SPS Supported Controllers screen, select A11 Radio – Programming Part 1 and then follow the onscreen instructions.
Note: During programming part 1 SPS will tell you that the programming event failed. This is due to a technical difficulty
in SPS. Please proceed to programming part 2.
Note: Programming Part 1 will reboot the radio and automatically turn the vehicle OFF.
15. On the SPS Supported Controllers screen, select A11 Radio – Programming Part 2 and then follow the onscreen instructions.
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Note: Programming Part 2 will automatically turn the vehicle OFF.
16. Compare the Build number displayed in SPS with the Build number displayed on the radio screen, select the
following menu options.
•
•
•
•
•

Home
Settings
System
About
Build Number

17. If the Build numbers match, proceed to the next step. If the Build numbers do not match, return to step 2 to
continue updating the radio until the Build numbers match.
18. Clear DTCs.
19. Ignition OFF, Retained Accessory Power (RAP) OFF, remove the key fob from range of the vehicle, and let the
vehicle sit for five minutes. Retest system operation to verify the repair.
20. After radio programming select the ambient lighting app and ensure the color pallet appears. If the color pallet
does not load, reset the display by pressing and holding the Mute/Call Decline button on the steering wheel for
10 seconds “or until the recovery screen is displayed”. If the center display does not reset and stays on the
recovery menu, let go off the Mute/Decline Call button and repeat.
Important: After Radio USB programming is complete, verify the software version on Radio Screen matches
the current version shown on the Warranty Claim Code (WCC) screen in Techline Connect (TLC). Refer to the
WCC screen for instructions on how to navigate to the software version within the Radio menu.
Reprogram all the available modules in Techline Connect.Not all vehicles will be equipped with all of the modules listed
below.
Use the table below as a “Check List” to mark modules as completed while programming.
K9 Body Control
Module
Reprogramming with
SPS

K183 UHF Short
Range Low Energy
Remote Control
Access Transceiver
Reprogramming with
SPS

K43 Power Steering
Control Module
Reprogramming with
SPS

A11 Radio
Reprogramming with
USB and SPS

K194 Rear Gate
Module
Reprogramming with
SPS

K56 Serial Data
Gateway Module
Reprogramming with
SPS

K16 Battery Energy
Control Module
Reprogramming with
SPS

K212 Gear Shift
Control Module
Reprogramming with
SPS

B218L Side Obstacle
Detection Control
Module - Left
Reprogramming with
SPS

K73 Telematic
Control Module

K219 Lighting Control
Module
Reprogramming with
SPS

B218R Side Obstacle
Detection Control
Module - Right
Reprogramming with
SPS

B174W Front View
Camera
Reprogramming with
SPS

K36 Restraints
Control Module
Reprogramming with
SPS

B233B Forward
Range Radar Sensor
- Long Range
Reprogramming with
SPS

K26 Headlamp
Control Module

K40D Driver Seat
Adjuster Memory
Module

B233 Short Range
Radar Sensor

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Reprogramming with
SPS

Reprogramming with
SPS

Reprogramming with
SPS

K107 Drive Motor
Control Module
Reprogramming with
SPS

K85P Restraints
Occupant
Classification System
Module - Passenger
Reprogramming with
SPS

K60 Column Lock
Control Module
Reprogramming with
SPS

K160 Brake System
Control Module
Reprogramming with
SPS

K182 Parking Assist
Control Module
Reprogramming with
SPS

T22 Wireless
Accessory Charging
Module
Reprogramming with
SPS

K180 Driver
Monitoring System
Control Module
Reprogramming with
SPS

K132 Pedestrian
Alert Sound Control
Module
Reprogramming with
SPS

T3 Audio Amplifier
Reprogramming with
SPS

K157 Video
Processing Control
Module
Reprogramming with
SPS

1. Restart Techline Connect.
2. Reprogram all equipped modules shown in the “Select Controller” section of SPS2 in Techline Connect. Refer
to Diagnostic Overview, Starting Point, and Programming> Programming and Setup> Repair Instructions in SI
for the applicable modules being reprogrammed.
3. If the front view camera module is reprogrammed, the front view camera module MUST be calibrated. Refer to
Front View Camera - Windshield Learn in SI.

5644478

Note: The screenshot above is an example of module programming and may not be indicative of the specific module
that is being programmed. Module selection and VIN information have been blacked out.
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.
4. Clear DTC’s.
5. Record Body Control Module (BCM) SPS Warranty Claim Code on job card for warranty transaction
submission.
Note: This module is the only Warranty Claim Code that is required to be submitted.
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6. After completing all module updates confirm vehicle charging functionality by connecting the vehicle to charger
for a minimum 10 minutes. Confirm charging functions normally and no DTCs are set.

If Unsuccessful Programming Occurs:
1.

2.

There is a chance for an error to be encountered during the USB update portion of the procedure right around
60% completed.
1.1. This happens once the USB is in the vehicle and the progress bar can be seen on screen.
If the error occurs the screen will look like below

6554772

3.
4.

In this case pull the USB from the vehicle and reformat again as shown in step 7 under service procedure.
Access the Service Programming System (SPS) and follow the on-screen instructions.

5.

On the SPS Supported Controllers screen, select A11 Radio – USB Copy/USB File Transfer.

6.

Upon completion of the file transfer, properly eject the USB drive from the computer.

7.

Connect the USB drive to the USB port in the vehicle.

8.
9.

7.1. If the screen fails to show a progress bar once reinserted, pull out and reinsert again.
These steps should allow the progress bar to restart and complete successfully.
If you require further assistance or would like verbal instructions in addition to this part of the service procedure
please contact Techline Customer Support Center 1-800-828-6860 for English or 1-800-503-3222 for French
(Canadian) for assistance.

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. 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.

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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.
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 for courtesy transportation
program details. For more details reference bulletin (17-NA-073).
To address your customer’s transportation needs while their vehicle is being serviced, you can review the customer
courtesy transportation options available. For rentals, shuttle, public transportation details reference bulletin (07-00-89037).
c.
When a dealer puts a customer in a rental vehicle (Courtesy Transportation), the dealer would enter the “daily amount”
into the Rental Field under Net Items. Once the value is entered into the Rental Field, the additional fields of “Rental
VIN”, “Rental Days” and “Rental Reason” are displayed and must be completed.
If a dealer puts a customer in a rental vehicle (Courtesy Transportation) and uses the Pickup and Delivery to deliver the
rental to the customer then, the dealer will complete the Rental claim information per above and enter the Pickup and
Delivery $45 ($22.50 for pickup and $22.50 for drop off), both USD and CAD in Net Items, Miscellaneous.
.

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6568768

Customer Notification
USA & Canada - General Motors will notify customers of this program on their vehicle (see copy of 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

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March 2024
This notice applies to your vehicle, VIN: ________________________________
Dear General Motors Customer:
Your Chevrolet Blazer EV is due for an important software update that must be performed at a Chevy EV certified
dealership. Our highest priority is ensuring that you have the best ownership experience possible.
What We Will Do: Your GM dealer will perform a comprehensive software update. This update will enable your
vehicle to receive over-the-air software updates that will improve your ownership experience, including the important
enhancements below:
•
•

Customizable multi-color ambient lighting
Revised Driver Information Center graphics with battery percentage display and more

Once completed, your vehicle will have the most up-to-date technology available, including the latest infotainment
features, performance enhancements, and more. This service will be performed for you at no charge until March 31,
2026. 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 service. When scheduling your appointment, confirm with the dealer that
they are an EV certified dealer.
If you need transportation while your vehicle is being serviced, inquire with your dealer about their courtesy vehicle and
convenient pickup & delivery options.
If you have any questions or concerns that your dealer is unable to resolve, please contact the appropriate Customer
Assistance Center at the number listed below.
For the hearing or speech impaired, please contact our Customer Assistance Center using the Telecommunication
Relay Service by dialing 711 then providing the appropriate Customer Assistance Center number for your vehicle.
Division
Chevrolet Blazer EV
Puerto Rico – English
Puerto Rico – Español
Virgin Islands

Number
1-833-EVCHEVY
(1-833-382-4389)
1-866-467-9700
1-866-467-9700
1-866-467-9700

Text Telephones (TTY)
711 / 1-800-833-2438

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 Blazer EV provides you many miles
of enjoyable driving.
Neelie O’Connor
Global Executive Director
Customer Experience Operations
N242436241

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