GMC Hummer EV Pickup Service Bulletins (2025)

391 manufacturer communications on file.

• November 25, 2024•Document ID: 11011359

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5981B

  Date Added:

  December 5, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates ordering process for the front and rear drive units are on restriction for all listed EV vehicles for engineering review.

  Associated Products (14)

  2025 Cadillac Lyriq2025 Chevrolet Blazer2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Sierra2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra2023 Cadillac Lyriq2023 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11011359-0001.pdf↗
• November 21, 2024•Document ID: 11011896

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  18-NA-180

  Date Added:

  December 17, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.

  Associated Products (72)

  2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Sierra2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra2023 BrightDrop Zevo2023 Cadillac Lyriq2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV+ 52 more
  Associated Documents

  • DownloadMC-11011896-0001.pdf↗
• November 20, 2024•Document ID: 11011955

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-202

  Date Added:

  December 18, 2024

  Manufacturer:

  GMC

  Summary

  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.

  Associated Products (11)

  2025 Cadillac Escalade IQ2025 Chevrolet BrightDrop2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Sierra2024 BrightDrop Zevo2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11011955-0001.pdf↗
• November 20, 2024•Document ID: 11011944

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-151

  Date Added:

  December 18, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin and criteria within are to determine the internal state of the High Voltage Battery and core return shipping method.

  Associated Products (19)

  2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Sierra2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra2023 BrightDrop Zevo2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11011944-0001.pdf↗
• November 19, 2024•Document ID: 11011961

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  24-NA-202

  Date Added:

  December 19, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides dealers with Warranty Administration information on North American Charging Standard (NACS) DC Adapter Warranty Claim Information.

  Associated Products (24)

  2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Chevrolet Blazer2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Sierra2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2023 Cadillac Lyriq2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 GMC Hummer EV Pickup2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 GMC Hummer EV Pickup2021 Chevrolet Bolt EV+ 4 more
  Associated Documents

  • DownloadMC-11011961-0001.pdf↗
• November 19, 2024•Document ID: 11010683

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N242470230

  Date Added:

  November 19, 2024

  Manufacturer:

  GMC

  Summary

  Certain vehicles listed above may need an updated Owner’s Manual insert which includes improved feature descriptions for Remote Key Operation (Key Fobs), Power Hood (eTrunk) for all, and Swing Gate information (for HUMMER EV SUV). Dealers will insert the updated insert into the Owner’s Manual. Since the insert can be easily installed, and to reduce customer inconvenience, the insert will be sent directly to customers of record along with instructions. Customers may place the insert into their Owner’s Manual or, if they desire, they may ask the dealer to perform this task.

  Associated Products (6)

  2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Sierra2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra
  Associated Documents

  • DownloadMC-11010683-0001.pdf↗
• November 15, 2024•Document ID: 11011878

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY; SEAT BELTS

  Mfr Comm. #:

  24-NA-257

  Date Added:

  December 17, 2024

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to correct Rear Seat Belt Bezel Falls Off.

  Associated Products (1)

  2025 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11011878-0001.pdf↗
• November 15, 2024•Document ID: 11011868

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-143

  Date Added:

  December 16, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information for dealers/technicians on Software Updates on Ultium Vehicles.

  Associated Products (15)

  2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Sierra2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11011868-0001.pdf↗
• November 15, 2024•Document ID: 11011860

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  24-NA-113

  Date Added:

  December 16, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for dealers/technicians on Vehicle Wide Programming Instructions.

  Associated Products (23)

  2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Hummer EV Pickup2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Lyriq2024 Cadillac XT42024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra2023 Cadillac Lyriq2023 Chevrolet Colorado+ 3 more
  Associated Documents

  • DownloadMC-11011860-0001.pdf↗
• November 14, 2024•Document ID: 11010535

  Service Campaign
  SERVICE BRAKES

  Mfr Comm. #:

  N242473130

  Date Added:

  November 14, 2024

  Manufacturer:

  GMC

  Summary

  Service Update. On certain vehicles, there may be debris/machining chips in the rear knuckles. Dealers will inspect, and if necessary, retap the rear brake caliper bracket threads.

  Associated Products (1)

  2025 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11010535-0001.pdf↗
• November 13, 2024•Document ID: 11011870

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  24-NA-226

  Date Added:

  December 16, 2024

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of Passenger Side Windshield A-Pillar Speaker Grill Cover Falling Off/Loose/Not Flush.

  Associated Products (2)

  2025 GMC Hummer EV Pickup2024 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11011870-0001.pdf↗
• November 8, 2024•Document ID: 11011216

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  PIT6275

  Date Added:

  December 4, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the field on a diagnostic tip for a Service Door Latch message and checking the inside door handle cable to make sure ift is fully engaged

  Associated Products (4)

  2025 GMC Hummer EV Pickup2024 GMC Hummer EV Pickup2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11011216-0001.pdf↗
• November 8, 2024•Document ID: 11011212

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6265A

  Date Added:

  December 4, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to dealership technicians that if they encounter a vehicle with this communication issue, they can contact TCSC to have the software for the MDI backdated to communicate properly.

  Associated Products (55)

  2025 Buick Enclave2025 Buick Envision2025 Cadillac CT42025 Cadillac CT52025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Hummer EV Pickup2025 GMC Sierra2025 GMC Terrain2025 GMC Yukon2025 GMC Yukon XL2024 BrightDrop Zevo2024 Buick Envision+ 35 more
  Associated Documents

  • DownloadMC-11011212-0001.pdf↗
• November 7, 2024•Document ID: 11011704

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  12-08-51-002R

  Date Added:

  December 10, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.

  Associated Products (52)

  2025 Chevrolet Colorado2025 Chevrolet Silverado2025 GMC Canyon2025 GMC Hummer EV Pickup2025 GMC Sierra2024 Chevrolet Colorado2024 Chevrolet Silverado2024 GMC Canyon2024 GMC Hummer EV Pickup2024 GMC Sierra2023 Chevrolet Colorado2023 Chevrolet Silverado2023 GMC Canyon2023 GMC Hummer EV Pickup2023 GMC Sierra2022 Chevrolet Colorado2022 Chevrolet Silverado2022 GMC Canyon2022 GMC Hummer EV Pickup2022 GMC Sierra+ 32 more
  Associated Documents

  • DownloadMC-11011704-0001.pdf↗
• November 5, 2024•Document ID: 11011709

  Service Bulletin/Repair Instructions
  SERVICE BRAKES; STRUCTURE:BODY; WHEELS; UNKNOWN OR OTHER; ENGINE

  Mfr Comm. #:

  21-NA-043

  Date Added:

  December 10, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.

  Associated Products (615)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu+ 595 more
  Associated Documents

  • DownloadMC-11011709-0001.pdf↗
• November 1, 2024•Document ID: 11011183

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6209C

  Date Added:

  December 4, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates recovery procedure after return to dealer message.

  Associated Products (27)

  2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 GMC Hummer EV Pickup2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Hummer EV Pickup2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Sierra2023 GMC Yukon+ 7 more
  Associated Documents

  • DownloadMC-11011183-0001.pdf↗
• October 29, 2024•Document ID: 11011484

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  PIT6269

  Date Added:

  December 5, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates how to repair the rear swing gate access button that is stuck

  Associated Products (2)

  2025 GMC Hummer EV Pickup2024 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11011484-0001.pdf↗
• October 28, 2024•Document ID: 11011476

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5985F

  Date Added:

  December 5, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed over the air update.

  Associated Products (79)

  2025 Buick Envision2025 Cadillac CT42025 Cadillac CT52025 Cadillac Lyriq2025 Cadillac XT42025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Hummer EV Pickup2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 BrightDrop Zevo2024 Buick Envision2024 Cadillac CT4+ 59 more
  Associated Documents

  • DownloadMC-11011476-0001.pdf↗
• October 28, 2024•Document ID: 11011475

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5832R

  Date Added:

  December 5, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.

  Associated Products (79)

  2025 Buick Envision2025 Cadillac CT42025 Cadillac CT52025 Cadillac Lyriq2025 Cadillac XT42025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Hummer EV Pickup2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 BrightDrop Zevo2024 Buick Envision2024 Cadillac CT4+ 59 more
  Associated Documents

  • DownloadMC-11011475-0001.pdf↗
• October 25, 2024•Document ID: 11009192

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT6245

  Date Added:

  October 25, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates the need to program the BECM before replacement of the high Voltage battery.

  Associated Products (16)

  2025 Cadillac Lyriq2025 Chevrolet Blazer2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Sierra2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11009192-0001.pdf↗