GMC Hummer EV Pickup Service Bulletins (2023)

642 manufacturer communications on file.

• June 28, 2024•Document ID: 11004874

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

  Mfr Comm. #:

  22-NA-083

  Date Added:

  July 17, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides Requirements for Replacement of the Dual Mode Cord Set Under Warranty.

  Associated Products (10)

  2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2023 Cadillac Lyriq2023 Chevrolet Bolt EUV2023 GMC Hummer EV Pickup2022 Chevrolet Bolt EUV2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11004874-0001.pdf↗
• June 18, 2024•Document ID: 11004624

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-070

  Date Added:

  July 12, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.

  Associated Products (438)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX+ 418 more
  Associated Documents

  • DownloadMC-11004624-0001.pdf↗
• June 17, 2024•Document ID: 11004558

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-018

  Date Added:

  July 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only).

  Associated Products (398)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX+ 378 more
  Associated Documents

  • DownloadMC-11004558-0001.pdf↗
• June 17, 2024•Document ID: 11004557

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  18-NA-099

  Date Added:

  July 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.

  Associated Products (1184)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX+ 1164 more
  Associated Documents

  • DownloadMC-11004557-0001.pdf↗
• June 14, 2024•Document ID: 11002441

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  18-NA-125

  Date Added:

  June 28, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for engine oil life monitor operation calculation.

  Associated Products (646)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision+ 626 more
  Associated Documents

  • DownloadMC-11002441-0001.pdf↗
• June 13, 2024•Document ID: 11003837

  Service Bulletin/Repair Instructions
  FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

  Mfr Comm. #:

  24-NA-034

  Date Added:

  July 9, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information for dealers/technicians on Grunt Noise with Adaptive Cruise or One-Pedal Drive.

  Associated Products (8)

  2024 BrightDrop Zevo2024 Chevrolet Blazer2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11003837-0001.pdf↗
• June 13, 2024•Document ID: 11003835

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

  Mfr Comm. #:

  23-NA-202

  Date Added:

  July 9, 2024

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides information on High Voltage Drive Motor Battery - TAC Approval and Exchange Program for GMC HUMMER EV, Silverado EV and BrightDrop.

  Associated Products (5)

  2024 BrightDrop Zevo2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11003835-0001.pdf↗
• June 10, 2024•Document ID: 11004345

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

  Mfr Comm. #:

  PIE0788B

  Date Added:

  July 11, 2024

  Manufacturer:

  CADILLAC

  Summary

  This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to MIL illuminated on DIC to correct BET and BEV3 Ultium Packs Setting Moving Average Voltage Detection (MAVD) and Delta Voltage Rest Period (DVRP) Fault Codes.

  Associated Products (10)

  2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2023 BrightDrop Zevo2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11004345-0001.pdf↗
• June 8, 2024•Document ID: 11001972

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  21-NA-068

  Date Added:

  June 22, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.

  Associated Products (324)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT4+ 304 more
  Associated Documents

  • DownloadMC-11001972-0001.pdf↗
• June 6, 2024•Document ID: 11002312

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-098

  Date Added:

  June 25, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.

  Associated Products (1148)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT4+ 1128 more
  Associated Documents

  • DownloadMC-11002312-0001.pdf↗
• June 5, 2024•Document ID: 11002022

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

  Mfr Comm. #:

  23-NA-151

  Date Added:

  June 24, 2024

  Manufacturer:

  GMC

  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 (10)

  2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2023 BrightDrop Zevo2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11002022-0001.pdf↗
• June 5, 2024•Document ID: 11001971

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  20-NA-016

  Date Added:

  June 22, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle.

  Associated Products (636)

  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+ 616 more
  Associated Documents

  • DownloadMC-11001971-0001.pdf↗
• May 28, 2024•Document ID: 11000492

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N232434060

  Date Added:

  May 28, 2024

  Manufacturer:

  GMC

  Summary

  Service Update. On certain vehicles, the power tonneau cover may not open or close. Dealers are to replace the electronic control unit, and if necessary, also replace the power tonneau cover motor.

  Associated Products (3)

  2024 GMC Hummer EV Pickup2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11000492-0001.pdf↗
• May 24, 2024•Document ID: 11001778

  Service Bulletin/Repair Instructions
  FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-090

  Date Added:

  June 18, 2024

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of SuperCruise Unavailable – No road Info: Road Expansion.

  Associated Products (35)

  2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Hummer EV Pickup2024 GMC Sierra2024 GMC Yukon2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL+ 15 more
  Associated Documents

  • DownloadMC-11001778-0001.pdf↗
• May 24, 2024•Document ID: 11001774

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-151

  Date Added:

  June 18, 2024

  Manufacturer:

  GMC

  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 (10)

  2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2023 BrightDrop Zevo2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11001774-0001.pdf↗
• May 16, 2024•Document ID: 11001380

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-064

  Date Added:

  June 10, 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 (200)

  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+ 180 more
  Associated Documents

  • DownloadMC-11001380-0001.pdf↗
• May 16, 2024•Document ID: 11001321

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  08-07-30-035H

  Date Added:

  June 7, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides information on the harmful effects of water or ethylene glycol in transmission fluid.

  Associated Products (912)

  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+ 892 more
  Associated Documents

  • DownloadMC-11001321-0001.pdf↗
• May 14, 2024•Document ID: 11001325

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  16-NA-119

  Date Added:

  June 7, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides policy information to cover GMs policy on performing GM covered vehicle services and maintenance on vehicles originating/sold in Canada.

  Associated Products (747)

  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+ 727 more
  Associated Documents

  • DownloadMC-11001325-0001.pdf↗
• May 9, 2024•Document ID: 11000602

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-070

  Date Added:

  May 31, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information for replacement parts traceability (RPT) process to aid in tracking part replacements.

  Associated Products (429)

  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+ 409 more
  Associated Documents

  • DownloadMC-11000602-0001.pdf↗
• May 7, 2024•Document ID: 11000607

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

  Mfr Comm. #:

  PIE0788A

  Date Added:

  May 31, 2024

  Manufacturer:

  CADILLAC

  Summary

  This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regard to MIL illuminated on DIC to correct BET and BEV3 Ultium Packs Setting Moving Average Voltage Detection (MAVD) and Delta Voltage Rest Period (DVRP) Fault Codes.

  Associated Products (10)

  2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2023 BrightDrop Zevo2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11000607-0001.pdf↗