GMC Hummer EV Pickup Service Bulletins

905 manufacturer communications on file.

• October 25, 2024•Document ID: 11009165

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  PIT6212B

  Date Added:

  October 25, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue with the Hydrastar Electric Over Hydraulic trailer brake system causing a voltage spike into the trucks electrical system which is causing DTC C1114 to set.

  Associated Products (13)

  2025 Cadillac Escalade2025 Chevrolet Colorado2025 Chevrolet Tahoe2025 GMC Canyon2025 GMC Hummer EV Pickup2025 GMC Yukon2024 Cadillac Escalade2024 Chevrolet Colorado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Canyon2024 GMC Hummer EV Pickup2024 GMC Yukon
  Associated Documents

  • DownloadMC-11009165-0001.pdf↗
• October 25, 2024•Document ID: 11009149

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP6009

  Date Added:

  October 25, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates the request that engineering it looking to get data from these vehicles before any work is being performed.

  Associated Products (4)

  2025 Cadillac Lyriq2025 GMC Hummer EV Pickup2024 Cadillac Lyriq2024 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11009149-0001.pdf↗
• October 25, 2024•Document ID: 11009114

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5994A

  Date Added:

  October 25, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates information on software issues for the P2980 Code, and steps to check see how the code is failing. these steps will help the dealer determine if a pending software fix will correct the issue of if parts need to be replaced.

  Associated Products (2)

  2025 GMC Hummer EV Pickup2024 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11009114-0001.pdf↗
• October 24, 2024•Document ID: 11011465

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6265

  Date Added:

  December 5, 2024

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (39)

  2025 Buick Enclave2025 Buick Envision2025 Cadillac CT42025 Cadillac CT52025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Chevrolet Blazer2025 Chevrolet Equinox2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Hummer EV Pickup2025 GMC Terrain2025 GMC Yukon2024 Buick Envision2024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Cadillac Lyriq2024 Cadillac XT4+ 19 more
  Associated Documents

  • DownloadMC-11011465-0001.pdf↗
• October 24, 2024•Document ID: 11009111

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6044L

  Date Added:

  October 24, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates that a Software update is in the works and to disconnect the 12 volt battery to clear the codes.

  Associated Products (7)

  2025 Cadillac Lyriq2025 GMC Hummer EV Pickup2024 Cadillac Lyriq2024 GMC Hummer EV Pickup2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11009111-0001.pdf↗
• October 24, 2024•Document ID: 11009094

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  PIT5909C

  Date Added:

  October 24, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates that it is normal for the tailgate to drop faster than it used to after the GM Accessory Kicker Audio System is installed.

  Associated Products (4)

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

  • DownloadMC-11009094-0001.pdf↗
• October 22, 2024•Document ID: 11011157

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

  Mfr Comm. #:

  PIE0753E

  Date Added:

  December 4, 2024

  Manufacturer:

  CADILLAC

  Summary

  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.

  Associated Products (12)

  2025 Cadillac Lyriq2025 GMC Hummer EV Pickup2024 Cadillac Lyriq2024 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
  Associated Documents

  • DownloadMC-11011157-0001.pdf↗
• October 22, 2024•Document ID: 11009056

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT6202B

  Date Added:

  October 22, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates how to properly relearn the e-Trunk if it has lost it's learn.

  Associated Products (4)

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

  • DownloadMC-11009056-0001.pdf↗
• October 22, 2024•Document ID: 11009047

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5994

  Date Added:

  October 22, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates information on software issues for the P2980 Code, and steps to check see how the code is failing. these steps will help the dealer determine if a pending software fix will correct the issue of if parts need to be replaced.

  Associated Products (3)

  2025 GMC Hummer EV Pickup2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11009047-0001.pdf↗
• October 18, 2024•Document ID: 11011452

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP6009A

  Date Added:

  December 5, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates the request that engineering it looking to get data from these vehicles before any work is being performed.

  Associated Products (7)

  2025 Cadillac Lyriq2025 GMC Hummer EV Pickup2024 Cadillac Lyriq2024 GMC Hummer EV Pickup2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11011452-0001.pdf↗
• October 18, 2024•Document ID: 11010729

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  24-NA-143

  Date Added:

  November 21, 2024

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (6)

  2025 Cadillac Lyriq2024 Cadillac Lyriq2024 GMC Hummer EV Pickup2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11010729-0001.pdf↗
• October 18, 2024•Document ID: 11010727

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  24-NA-132

  Date Added:

  November 21, 2024

  Manufacturer:

  GMC

  Summary

  Warranty Administration - Claim Submission for Field Actions using Vehicle Wide Programming.

  Associated Products (12)

  2025 Cadillac Lyriq2025 Chevrolet Tahoe2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Lyriq2024 Cadillac XT42024 GMC Hummer EV Pickup2023 Cadillac Lyriq2023 Chevrolet Colorado2023 GMC Canyon2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11010727-0001.pdf↗
• October 18, 2024•Document ID: 11010726

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-113

  Date Added:

  November 21, 2024

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (12)

  2025 Cadillac Lyriq2025 Chevrolet Tahoe2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Lyriq2024 Cadillac XT42024 GMC Hummer EV Pickup2023 Cadillac Lyriq2023 Chevrolet Colorado2023 GMC Canyon2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11010726-0001.pdf↗
• October 17, 2024•Document ID: 11010901

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  24-NA-229

  Date Added:

  December 2, 2024

  Manufacturer:

  BUICK

  Summary

  This bulletin provides a procedure on how to check for a battery drain utilizing the Picoscope and how to measure the load on the system that may be causing a drain.

  Associated Products (122)

  2025 Buick Enclave2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Canyon2025 GMC Hummer EV Pickup+ 102 more
  Associated Documents

  • DownloadMC-11010901-0001.pdf↗
• October 16, 2024•Document ID: 11010830

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

  Mfr Comm. #:

  24-NA-169

  Date Added:

  November 27, 2024

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of SuperCruise Dropping Out After Driving 30–60 Seconds and/or Service Driver Assist Message Illuminated with DTCs U1626, U3000, and/or B2BA1.

  Associated Products (4)

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

  • DownloadMC-11010830-0001.pdf↗
• October 16, 2024•Document ID: 11010716

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY

  Mfr Comm. #:

  24-NA-083

  Date Added:

  November 21, 2024

  Manufacturer:

  CADILLAC

  Summary

  This informational bulletin provides information on EV Charge Inlet Dust Cover Replacement Information.

  Associated Products (7)

  2025 Cadillac Lyriq2025 GMC Hummer EV Pickup2024 Cadillac Lyriq2024 GMC Hummer EV Pickup2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11010716-0001.pdf↗
• October 12, 2024•Document ID: 11010575

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

  Mfr Comm. #:

  24-NA-034

  Date Added:

  November 16, 2024

  Manufacturer:

  GMC

  Summary

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

  Associated Products (5)

  2025 GMC Hummer EV Pickup2024 GMC Hummer EV Pickup2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11010575-0001.pdf↗
• October 11, 2024•Document ID: 11010576

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  24-NA-040

  Date Added:

  November 16, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information on All hazmat parts being returned to the Warranty Parts Center (WPC) must be shipped using Central Transport. Hazardous materials should never be sent by air transportation to the WPC.

  Associated Products (168)

  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 Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Tahoe+ 148 more
  Associated Documents

  • DownloadMC-11010576-0001.pdf↗
• October 9, 2024•Document ID: 11011434

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT6215A

  Date Added:

  December 5, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to dealership technicians that if they encounter a customer vehicle with this concern, to perform the steps listed and should be able to reprogram the module and correct this.

  Associated Products (9)

  2025 Cadillac Lyriq2024 Cadillac Lyriq2024 Cadillac XT42024 GMC Hummer EV Pickup2023 Cadillac Lyriq2023 Chevrolet Colorado2023 GMC Canyon2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11011434-0001.pdf↗
• October 9, 2024•Document ID: 11011431

  Service Bulletin/Repair Instructions
  SUSPENSION

  Mfr Comm. #:

  PIT6255

  Date Added:

  December 5, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a diagnostic tip when experiencing an error when trying to perfom a trim height learn or review pressure data in GDS

  Associated Products (24)

  2025 GMC Hummer EV Pickup2024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Chevrolet Tahoe2024 GMC Hummer EV Pickup2024 GMC Yukon2024 GMC Yukon XL2023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Yukon2023 GMC Yukon XL2022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Tahoe2022 GMC Hummer EV Pickup2022 GMC Yukon2022 GMC Yukon XL2021 Cadillac Escalade+ 4 more
  Associated Documents

  • DownloadMC-11011431-0001.pdf↗