GMC Hummer EV Pickup Service Bulletins (2023)

642 manufacturer communications on file.

• September 21, 2024•Document ID: 11009760

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-064

  Date Added:

  November 5, 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 (232)

  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 Silverado2025 Chevrolet Suburban+ 212 more
  Associated Documents

  • DownloadMC-11009760-0001.pdf↗
• September 18, 2024•Document ID: 11009448

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

  Mfr Comm. #:

  24-NA-202

  Date Added:

  October 29, 2024

  Manufacturer:

  GMC

  Summary

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

  Associated Products (23)

  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 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 EV2020 Chevrolet Bolt EV+ 3 more
  Associated Documents

  • DownloadMC-11009448-0001.pdf↗
• September 18, 2024•Document ID: 11007867

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  N242436170

  Date Added:

  September 18, 2024

  Manufacturer:

  GMC

  Summary

  Customer Satisfaction Program - vehicles may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.

  Associated Products (1)

  2023 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11007867-0001.pdf↗
• September 16, 2024•Document ID: 11009088

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  08-07-30-026I

  Date Added:

  October 24, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.

  Associated Products (789)

  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 Silverado2025 Chevrolet Suburban+ 769 more
  Associated Documents

  • DownloadMC-11009088-0001.pdf↗
• September 16, 2024•Document ID: 11007814

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6139E

  Date Added:

  September 16, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the field on how to clear the Service Drivers Assist message with new software that is now available.

  Associated Products (2)

  2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11007814-0001.pdf↗
• September 14, 2024•Document ID: 11009039

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  18-NA-146

  Date Added:

  October 22, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only).

  Associated Products (648)

  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 Silverado2025 Chevrolet Suburban+ 628 more
  Associated Documents

  • DownloadMC-11009039-0001.pdf↗
• September 13, 2024•Document ID: 11007784

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5985E

  Date Added:

  September 14, 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 (64)

  2025 Buick Enclave2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Chevrolet Corvette2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Hummer EV Pickup2024 BrightDrop Zevo2024 Buick Envision2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Chevrolet Blazer2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Silverado+ 44 more
  Associated Documents

  • DownloadMC-11007784-0001.pdf↗
• September 13, 2024•Document ID: 11007783

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6189B

  Date Added:

  September 13, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the field on how to reset the FCM until new software is released for supercruise dropping out.

  Associated Products (2)

  2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11007783-0001.pdf↗
• September 12, 2024•Document ID: 11007738

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP5981A

  Date Added:

  September 12, 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 (10)

  2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra2023 BrightDrop Zevo2023 Cadillac Lyriq2023 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11007738-0001.pdf↗
• September 11, 2024•Document ID: 11007715

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6044K

  Date Added:

  September 11, 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 (12)

  2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2024 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-11007715-0001.pdf↗
• September 11, 2024•Document ID: 11007711

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6151A

  Date Added:

  September 11, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the technician that GM is aware of this concern and to update the Google maps application through the playstore.

  Associated Products (36)

  2024 BrightDrop Zevo2024 Buick Envision2024 Cadillac Lyriq2024 Cadillac XT42024 Chevrolet Blazer2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Traverse2024 GMC Acadia2024 GMC Canyon2024 GMC Hummer EV Pickup2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 BrightDrop Zevo2023 Cadillac Lyriq+ 16 more
  Associated Documents

  • DownloadMC-11007711-0001.pdf↗
• September 11, 2024•Document ID: 11007698

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT6215

  Date Added:

  September 11, 2024

  Manufacturer:

  CADILLAC

  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 (11)

  2024 Cadillac Lyriq2024 Cadillac XT42024 Chevrolet Blazer2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra2023 Cadillac Lyriq2023 Chevrolet Colorado2023 GMC Canyon2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11007698-0001.pdf↗
• September 11, 2024•Document ID: 11007687

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6086H

  Date Added:

  September 11, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides the technician with steps to resolve the issue of an oily substance that may be found on the inside windshield surface, and appears to be leaking from the rear view mirror area.  Technician will remove the moisture sensor and clean the glass and mounting bracket with alcohol wipe. If the gel separates from the sensor the sensor will need to be replaced.

  Associated Products (124)

  2025 Cadillac CT42025 Cadillac XT52025 Cadillac XT62025 GMC Hummer EV Pickup2024 Buick Encore GX2024 Cadillac CT42024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT52024 Cadillac XT62024 Chevrolet Silverado2024 Chevrolet Suburban2024 GMC Hummer EV Pickup2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Buick Encore GX2023 Cadillac CT42023 Cadillac Escalade2023 Cadillac Lyriq+ 104 more
  Associated Documents

  • DownloadMC-11007687-0001.pdf↗
• September 10, 2024•Document ID: 11009037

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  07-00-89-036K

  Date Added:

  October 22, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on Enhancing Field Product Reports with Digital Pictures.

  Associated Products (497)

  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 Silverado2025 Chevrolet Suburban+ 477 more
  Associated Documents

  • DownloadMC-11009037-0001.pdf↗
• September 10, 2024•Document ID: 11008964

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  22-NA-235

  Date Added:

  October 17, 2024

  Manufacturer:

  GMC

  Summary

  This service bulletin provides repair information to correct a customer concern of Wireless Charging Intermittent When Using iPhone and Samsung Phones at Offset Positions.

  Associated Products (25)

  2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Chevrolet Corvette2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Colorado2022 Chevrolet Corvette2022 Chevrolet Suburban+ 5 more
  Associated Documents

  • DownloadMC-11008964-0001.pdf↗
• September 9, 2024•Document ID: 11009028

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

  Mfr Comm. #:

  24-NA-169

  Date Added:

  October 22, 2024

  Manufacturer:

  GMC

  Summary

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

  Associated Products (3)

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

  • DownloadMC-11009028-0001.pdf↗
• September 9, 2024•Document ID: 11008956

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  02-00-89-002X

  Date Added:

  October 17, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).

  Associated Products (936)

  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 Silverado2025 Chevrolet Suburban+ 916 more
  Associated Documents

  • DownloadMC-11008956-0001.pdf↗
• September 9, 2024•Document ID: 11007579

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6044J

  Date Added:

  September 9, 2024

  Manufacturer:

  GMC

  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 (8)

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

  • DownloadMC-11007579-0001.pdf↗
• September 6, 2024•Document ID: 11007383

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  PIT5872D

  Date Added:

  September 6, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the field a normal noise that is heard when applting the brakes and turning the steering wheel.

  Associated Products (3)

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

  • DownloadMC-11007383-0001.pdf↗
• September 6, 2024•Document ID: 11007208

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT3271P

  Date Added:

  September 6, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.

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  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 Sierra2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore+ 1036 more
  Associated Documents

  • DownloadMC-11007208-0001.pdf↗