GMC Hummer EV SUV Service Bulletins

356 manufacturer communications on file.

• April 3, 2025•Document ID: 11017595

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-NA-087

  Date Added:

  May 2, 2025

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.

  Associated Products (543)

  2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado+ 523 more
  Associated Documents

  • DownloadMC-11017595-0001.pdf↗
• March 31, 2025•Document ID: 11017244

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  13-08-116-001K

  Date Added:

  April 25, 2025

  Manufacturer:

  CADILLAC

  Summary

  The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

  Associated Products (581)

  2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado+ 561 more
  Associated Documents

  • DownloadMC-11017244-0001.pdf↗
• March 28, 2025•Document ID: 11017247

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  22-NA-242

  Date Added:

  April 26, 2025

  Manufacturer:

  GMC

  Summary

  This warranty administration bulletin provides information for dealers/technicians on System Reset and Connector Reconnect Labor Code Numbers.

  Associated Products (145)

  2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado+ 125 more
  Associated Documents

  • DownloadMC-11017247-0001.pdf↗
• March 21, 2025•Document ID: 11017173

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; SERVICE BRAKES; STEERING

  Mfr Comm. #:

  25-NA-065

  Date Added:

  April 24, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis.

  Associated Products (496)

  2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet Colorado2026 Chevrolet Corvette+ 476 more
  Associated Documents

  • DownloadMC-11017173-0001.pdf↗
• May 1, 2024•Document ID: 11000163

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  21-NA-043

  Date Added:

  May 16, 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 (597)

  2025 Buick Enclave2025 Buick Encore2025 Cadillac CT52025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Trax2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT5+ 577 more
  Associated Documents

  • DownloadMC-11000163-0001.pdf↗
• May 1, 2024•Document ID: 11000158

  Service Bulletin/Repair Instructions
  SEATS; UNKNOWN OR OTHER

  Mfr Comm. #:

  06-00-89-029V

  Date Added:

  May 16, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability.

  Associated Products (865)

  2025 Buick Enclave2025 Buick Encore2025 Cadillac CT52025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Trax2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT5+ 845 more
  Associated Documents

  • DownloadMC-11000158-0001.pdf↗
• April 30, 2024•Document ID: 11000164

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-064

  Date Added:

  May 16, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.

  Associated Products (201)

  2025 Chevrolet Silverado2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox+ 181 more
  Associated Documents

  • DownloadMC-11000164-0001.pdf↗
• April 30, 2024•Document ID: 11000162

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  13-08-116-001J

  Date Added:

  May 16, 2024

  Manufacturer:

  CHEVROLET

  Summary

  The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.

  Associated Products (920)

  2025 Buick Enclave2025 Buick Encore2025 Cadillac CT52025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Trax2025 GMC Hummer EV Pickup2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT4+ 900 more
  Associated Documents

  • DownloadMC-11000162-0001.pdf↗
• April 30, 2024•Document ID: 11000160

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  10-08-110-001K

  Date Added:

  May 16, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information on proper use of floor mats.

  Associated Products (757)

  2025 Buick Enclave2025 Buick Encore2025 Cadillac CT52025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Trax2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT5+ 737 more
  Associated Documents

  • DownloadMC-11000160-0001.pdf↗
• April 30, 2024•Document ID: 10254499

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT6065F

  Date Added:

  May 10, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to technicians to perform the programming to the vehicles module to correct customer concerns.

  Associated Products (6)

  2024 Cadillac Lyriq2024 Chevrolet Silverado2024 GMC Hummer EV SUV2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-10254499-0001.pdf↗
• April 26, 2024•Document ID: 11000157

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-125

  Date Added:

  May 16, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on Over The Air (OTA) and In Market Enhancement (IME) FAQs.

  Associated Products (341)

  2025 Chevrolet Silverado2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox+ 321 more
  Associated Documents

  • DownloadMC-11000157-0001.pdf↗
• April 26, 2024•Document ID: 11000119

  Service Bulletin/Repair Instructions
  ENGINE; POWER TRAIN; SUSPENSION

  Mfr Comm. #:

  15-00-89-004G

  Date Added:

  May 15, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides technicians with information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.

  Associated Products (814)

  2025 Buick Enclave2025 Buick Encore2025 Cadillac CT52025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Trax2025 GMC Hummer EV Pickup2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT4+ 794 more
  Associated Documents

  • DownloadMC-11000119-0001.pdf↗
• April 26, 2024•Document ID: 10254389

  Service Bulletin/Repair Instructions
  EQUIPMENT; STRUCTURE

  Mfr Comm. #:

  22-NA-039

  Date Added:

  May 7, 2024

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides information for dealers/technicians on front license plate adapter bracket installation during PDI.

  Associated Products (5)

  2025 GMC Hummer EV Pickup2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-10254389-0001.pdf↗
• April 18, 2024•Document ID: 10253770

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  00-03-10-006P

  Date Added:

  May 1, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information for dealers/technicians on Tire Radial Force Variation (RFV).

  Associated Products (803)

  2025 Chevrolet Silverado2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express+ 783 more
  Associated Documents

  • DownloadMC-10253770-0001.pdf↗
• April 16, 2024•Document ID: 10254014

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-064

  Date Added:

  May 2, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.

  Associated Products (199)

  2025 Chevrolet Silverado2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express+ 179 more
  Associated Documents

  • DownloadMC-10254014-0001.pdf↗
• April 12, 2024•Document ID: 10253725

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-038

  Date Added:

  May 1, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This warranty bulletin provides information on Customer Concern Not Duplicated (CCND) Labor Operation Numbers.

  Associated Products (114)

  2025 Buick Enclave2025 Buick Encore2025 Cadillac CT52025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Trax2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT5+ 94 more
  Associated Documents

  • DownloadMC-10253725-0001.pdf↗
• April 10, 2024•Document ID: 10253527

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  20-NA-132

  Date Added:

  April 23, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

  Associated Products (630)

  2025 Chevrolet Silverado2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express+ 610 more
  Associated Documents

  • DownloadMC-10253527-0001.pdf↗
• April 8, 2024•Document ID: 10253526

  Service Bulletin/Repair Instructions
  EQUIPMENT; WHEELS

  Mfr Comm. #:

  17-NA-052

  Date Added:

  April 23, 2024

  Manufacturer:

  CADILLAC

  Summary

  This bulletin updates the position of General Motors on refinishing aluminum wheels. GM has determined that wheel refinishing under warranty will no longer be performed.

  Associated Products (579)

  2025 Chevrolet Silverado2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express+ 559 more
  Associated Documents

  • DownloadMC-10253526-0001.pdf↗
• April 4, 2024•Document ID: 10252726

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  N242439940

  Date Added:

  April 4, 2024

  Manufacturer:

  GMC

  Summary

  Service Update - Certain vehicles may have a condition where the Serial Data Gateway Module is incompatible for software updates. Dealers are to replace and reprogram the serial data gateway module.

  Associated Products (2)

  2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV
  Associated Documents

  • DownloadMC-10252726-0001.pdf↗
• March 28, 2024•Document ID: 10253116

  Service Bulletin/Repair Instructions
  ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION

  Mfr Comm. #:

  PIT6144

  Date Added:

  April 15, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates A diagnostic tip from root causing DTC: C1197 caused by a pinched air inlet hose to the suspension compressor air leveling system.

  Associated Products (19)

  2024 Cadillac Escalade2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Hummer EV SUV2024 GMC Yukon2023 Cadillac Escalade ESV2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Yukon XL2022 Cadillac Escalade ESV2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Hummer EV Pickup2022 GMC Yukon XL2021 Cadillac Escalade ESV2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10253116-0001.pdf↗