2025 GMC Hummer EV Pickup Technical Service Bulletins

391 technical service bulletins (TSBs) are on record for the 2025 GMC Hummer EV Pickup. 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.

• 11023149Sep 9, 2025Other or unknown. This Preliminary information communicates to the field about a false DTC that is setting and how to address the issue.
• 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.
• 11022782Aug 30, 2025Other or unknown. This information provides software update information for the K73 Telematics module to correct the symptoms described.
• 11022769Aug 26, 2025Other or unknown. This Preliminary information communicates information on vehicle speed being limited due to aftermarket lower kit being installed on the vehicle.
• 11022132Aug 22, 2025Other or unknown. This Pi is to let dealer know that a program issue has been released and to not replace any hard for codes P2C8A, P2C8B, U3577, U3578, U3579, U357A, U357B, U357C, U357D, U357E, U357F, U3580, U3581, U3582, U3583, U3584, U2BAA, U2BAB, U2BAC, U2BAD, U2BAE,
• 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.
• 11022131Aug 19, 2025Other or unknown. This Preliminary information communicates that the Tailgate Assist Handle is not included with certain truck models and how to get one if needed.
• 11022080Aug 15, 2025Other or unknown. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
• 11022084Aug 14, 2025Other or unknown. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
• 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.
• 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.
• 11021318Jul 31, 2025Other or unknown. PI was created to let dealers know that the underbody deflector are no longer standard equipment and they can ordered separately upon customer request.
• 11021285Jul 30, 2025Other or unknown. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
• 11020960Jul 24, 2025Other or unknown. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
• 11021063Jul 18, 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…
• 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.
• 11020811Jul 16, 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.
• 11020681Jul 2, 2025Other or unknown. This information provides software update information for the K73 Telematics module to correct the symptoms described.
• 11019985Jun 30, 2025Other or unknown. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
• 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.
• 11019920Jun 23, 2025Other or unknown. Software Update for your 25MY GMC Hummer EV •Fixes for audio system performance. •Improvements to connectivity for Bluetooth. •Fixes to help ensure successful software updates and notifications. •Fixes to address instances of inactive driver display. •Improvements to functionality for USB and steering wheel controls. •Improvements to leveling corrections. •Improvements to the performance of Super Cruise…
• 11019831Jun 20, 2025Other or unknown. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
• 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.
• 11019829Jun 18, 2025Other or unknown. This PI communicates a procedure to clean oil leaking from the rain sensor.
• 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.
• 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.
• 11019065May 29, 2025Other or unknown. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
• 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.
• 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.
• 11018647May 20, 2025Other or unknown. This Preliminary information communicates A vehicle may be encountered with super cruise inop due to not seeing drivers face clearly. The tech is directed to inspect the Infrared LED's on the steering wheel and replace the wheel if necessary.
• 11023367May 17, 2025Fuel system, Electrical system. This service bulletin provides Requirements for Replacement of the Dual Mode Cord Set Under Warranty.
• 11023484May 16, 2025Fuel system, Electrical system. This service bulletin and criteria within are to determine the internal state of the High Voltage Battery and core return shipping method.
• 11023388May 15, 2025Fuel system, Electrical system. This engineering information (EI) will assist GM to recover a small number of electric vehicle battery packs from customer-owned vehicles in the field for further engineering study and analysis.
• 11024498May 14, 2025Fuel system, Electrical system. This service bulletin provides information for dealers/technicians on SPS2 Hybrid/EV Battery Data Retrieval for Service High Voltage DTCs.
• 11024496May 14, 2025Electrical system, Fuel system. This service bulletin provides dealers with Warranty Administration information on North American Charging Standard (NACS) DC Adapter Warranty Claim Information.
• 11024488May 14, 2025Transmission and drivetrain. This informational bulletin provides information on Wheel Drive Shaft Retention Snap Ring Design Change.
• 11024487May 14, 2025Electrical system, Fuel system. This service bulletin provides information on High Voltage Drive Motor Battery - TAC Approval and Exchange Program for BrightDrop, Chevrolet Silverado EV, and GMC Sierra EV, HUMMER EV/SUV.
• 11023365May 14, 2025Fuel system, Electrical system. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
• 11018488May 14, 2025Other or unknown. This Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
• 11018481May 13, 2025Other or unknown. This Preliminary information communicates A vehicle may be encountered with super cruise inop due to not seeing drivers face clearly. The tech is directed to inspect the Infrared LED's on the steering wheel and replace the wheel if necessary.

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