2024 Chevrolet Blazer EV Technical Service Bulletins

604 technical service bulletins (TSBs) are on record for the 2024 Chevrolet Blazer EV. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 11024420Oct 22, 2025Brakes. Certain vehicles, 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.
• 11024460Oct 18, 2025Other or unknown. This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
• 11024455Oct 17, 2025Other or unknown. This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
• 11024458Oct 16, 2025Other or unknown. This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
• 11024337Oct 16, 2025Other or unknown. Certain vehicles listed above may have a condition in which the Battery Energy Control Module will not exit “commissioning” (start-up), because a Cell Monitoring Unit is offline. Dealers will reprogram the Battery Energy Control Module. Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to…
• 11024439Oct 4, 2025Other or unknown. The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.
• 11024438Oct 4, 2025Other or unknown. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
• 11023907Oct 1, 2025Other or unknown. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
• 11023342Sep 15, 2025Other or unknown. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
• 11023158Sep 10, 2025Other or unknown. A vehicle may come in with B3A6B set in history. Tech is directed to clear code and advise the customer an OTA will be released for the code.
• 11023091Sep 9, 2025Other or unknown. New Vehicle Monitoring Programs Section in IVH
• 11023032Sep 5, 2025Other or unknown. A vehicle may come in with B3A6B set in history. Tech is directed to clear code and advise the customer an OTA will be released for the code.
• 11024324Sep 4, 2025Electrical system, Fuel system. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
• 11023411Sep 3, 2025Other or unknown. This software update includes the following, if your vehicle is equipped: •Improvements to vehicle diagnostics. •Fixes to preserve battery life and improve charging. •Fixes to address issues with shifting. •Fixes for vehicle airflow in icy conditions. •Improvements to HVAC compressor performance. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior…
• 11022155Aug 26, 2025Other or unknown, Wheels. Certain vehicles may be missing relevant information regarding the use of snow chains, snow socks, or other traction devices from the Owner’s Manual. Vehicle owners will be mailed an owner’s manual insert to include with other important printed material in the glovebox. For vehicles currently on dealer lots, dealers will include the insert prior to delivery.
• 11022134Aug 21, 2025Other or unknown. A vehicle may come in with B3A6B set in history. Tech is directed to clear code and advise the customer an OTA will be released for the code.
• 11022130Aug 19, 2025Other or unknown. Diagnostic Guidance for U3000-97 Long Range Radar Blocked
• 11022084Aug 14, 2025Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
• 11022226Aug 11, 2025Other or unknown. This software update includes the following, if your vehicle is equipped: • Improvements to accuracy of Lane Keep Assist warnings. • Fixes to allow driver to connect to Wi-Fi for software updates. • Fixes for software updates and key card responsiveness. • Improvements to rear view camera performance. • Fixes to help prevent battery drain. • Fixes to responsiveness issues with Wi-Fi, Navigation, Super Cruise, and…
• 11022074Aug 8, 2025Other or unknown. A vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete. Tech is directed to drive a city route to complete the procedure.
• 11022068Aug 8, 2025Other or unknown. This Preliminary information communicates an issue with super cruise unavailable due to the driver's monitoring camera and dealers to replace the camera.
• 11022070Aug 7, 2025Other or unknown. A vehicle may arrive at the dealer with various symptoms or codes. Dealer is advised to inspect a wiring harness for chaffing at the cowl.
• 11021792Aug 7, 2025Other or unknown. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, B3935, C0750, C0755, C0760, C0765, and/or C0775.
• 11022071Aug 5, 2025Other or unknown. This Preliminary information communicates direction to find information at www.gmupfitter.com for Police and Special Service Vehicles.
• 11020963Jul 26, 2025Other or unknown. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it. It also informs them to follow the bulletins as necessary to USB update the modules.
• 11020964Jul 25, 2025Other or unknown. This preliminary information is for technicians that will have this message after USB updating the radio. The repair should not involve replacing a module as pressing the reset button will correct this issue.
• 11021064Jul 22, 2025Other or unknown. This software update includes the following, if your vehicle is equipped: • Improvements to accuracy of Lane Keep Assist warnings. • Fixes to allow driver to connect to Wi-Fi for software updates. • Fixes for software updates and key card responsiveness. • Improvements to rear view camera performance. • Fixes to help prevent battery drain. • Fixes to responsiveness issues with Wi-Fi, Navigation, Super Cruise, and…
• 11020816Jul 18, 2025Other or unknown. This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
• 11020809Jul 18, 2025Other or unknown. This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
• 11020716Jul 16, 2025Engine. Customer Satisfaction Program. Certain vehicles listed above may have a condition in which the internal differential nut was cross threaded or missing during assembly. Dealers will review the vehicles service history in IVH, and if necessary, replace the rear electric drive transmission module.
• 11020715Jul 16, 2025Engine. Customer Satisfaction Program. Certain vehicles listed above may have a condition in which the internal differential nut was cross threaded or missing during assembly. Dealers will review the vehicles service history in IVH, and if necessary, replace the front electric drive transmission module.
• 11020680Jul 2, 2025Other or unknown. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it. It also informs them to follow the bulletins as necessary to USB update the modules.
• 11019872Jun 26, 2025Other or unknown. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.
• 11019670Jun 20, 2025Other or unknown. Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the affected vehicles will be mailed an owner’s manual and warranty insert…
• 11019846Jun 19, 2025Other or unknown. This Preliminary information communicates a diagnostic tip on how to resolve a issue of the horn sounding when vehicle doors are being closed and the key in vehicle reminder set to off.
• 11019844Jun 18, 2025Other or unknown. This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it. It also informs them to follow the bulletins as necessary to USB update the modules.
• 11019843Jun 17, 2025Other or unknown. This preliminary information communicates to dealership technicians various radio concerns are all related to software and Engineering is currently working on a design improvement.
• 11019838Jun 17, 2025Other or unknown. This Preliminary Information communicates possible conditions they may encounter during HVAC flushing procedures on some vehicles due to adapter compatibility concerns that should be resolved soon.
• 11019591Jun 17, 2025Other or unknown. Amendments to the Song-Beverly Act (SBA) California warranty law provides vehicle owners with an opportunity to submit a written notice to GM before filing a lawsuit seeking a vehicle repurchase. If such a notice is not provided to GM, then the vehicle owner is prevented from seeking civil penalties in litigation. Vehicle owners of the applicable vehicles will be mailed an owner’s manual and warranty insert…
• 11019823Jun 10, 2025Other or unknown. This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.
• 11019693Jun 9, 2025Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
• 11026104Jun 7, 2025Wheels. This service bulletin provides information on Tire Sidewall Irregularities.
• 11019533Jun 2, 2025Other or unknown. This preliminary information communicates to dealership technicians various radio concerns are all related to software and Engineering is currently working on a design improvement.
• 11019074May 30, 2025Other or unknown. This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
• 11019073May 30, 2025Other or unknown. This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
• 11019072May 30, 2025Other or unknown. This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
• 11019071May 27, 2025Other or unknown. This Preliminary information communicates ordering process for the front and rear drive units are on restriction for all listed EV vehicles for engineering review.
• 11018722May 23, 2025Other or unknown. This software update includes the following, if your vehicle is equipped: • Improvements to the radio display During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
• 11018659May 22, 2025Other or unknown. This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
• 11018655May 21, 2025Other or unknown. This is to communicate to the dealership technicians to not perform any repairs for this issue. PI will be updated or replaced with TSB once a determination has been made.

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