GMC Hummer EV Pickup Service Bulletins
905 manufacturer communications on file.
- August 26, 2026•Document ID: 11036348Service CampaignUNKNOWN OR OTHER
- Mfr Comm. #:
- N252516700-01
- Date Added:
- August 26, 2026
- Manufacturer:
- CADILLAC
SummaryThe Battery Energy Control Module (BECM) in certain vehicles include battery-monitoring software. An update is available for this software that improves the BECM’s ability to detect moisture inside the RESS enclosure. Dealers are to reprogram the BECM with the updated software.
Associated Products (6)Associated Documents - August 20, 2026•Document ID: 11036392Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6551C
- Date Added:
- August 27, 2026
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
Associated Products (210)2026 Buick Enclave2026 Buick Encore2026 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 Colorado+ 190 moreAssociated Documents - August 14, 2026•Document ID: 11036222Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6533A
- Date Added:
- August 17, 2026
- Manufacturer:
- GMC
SummaryThis Preliminary information communications information on a Short Range Radar software anomaly causing false / ghost left or right side object detection alerts.
Associated Products (22)2027 Buick Enclave2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Vistiq2027 Chevrolet Traverse2027 GMC Acadia2026 Buick Enclave2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Vistiq2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV+ 2 moreAssociated Documents - August 3, 2026•Document ID: 11036194Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6512A
- Date Added:
- August 14, 2026
- Manufacturer:
- CADILLAC
SummaryThis PI states that if SDGM DTC P0604/P0607 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM. Advises of how to contact PQC to authorize SDGM replacement.
Associated Products (59)2026 Buick Enclave2026 Buick Envision2026 Cadillac Celestiq2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Terrain+ 39 moreAssociated Documents - July 30, 2026•Document ID: 11035710Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6517C
- Date Added:
- August 5, 2026
- Manufacturer:
- CHEVROLET
SummaryThis PI advise dealers If U3000 is present, follow the correct service doc by Symptom Byte before contacting PQC; if not present, verify the camera is clean, then contact PQC if no issue is found.
Associated Products (29)2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Equinox2027 GMC Terrain2026 Buick Enclave2026 Cadillac Celestiq2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV+ 9 moreAssociated Documents - July 24, 2026•Document ID: 11035351Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6446A
- Date Added:
- July 30, 2026
- Manufacturer:
- CHEVROLET
SummaryThis PI Communicates information to ensure Memory Recall is enabled to ensure memory mirrors return to set position after curbview assist is used.
Associated Products (50)2026 Cadillac CT42026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Chevrolet Tahoe2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Yukon2026 GMC Yukon XL2025 Cadillac CT42025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Chevrolet Tahoe2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Yukon2025 GMC Yukon XL+ 30 moreAssociated Documents - July 23, 2026•Document ID: 11035157Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- N262559120
- Date Added:
- July 23, 2026
- Manufacturer:
- GMC
SummaryCertain vehicles listed above may have a condition in which the Vehicle Leveling Module (VLM) may enter a faulted state during normal vehicle operation due to a software calibration issue. Dealers will reprogram the Vehicle Leveling Module (VLM). Owners who have accepted applicable terms and conditions will have the opportunity to accept these software changes using wireless over-the-air (OTA) technology without having to bring their vehicle to a dealership. Alternatively, owners may have their vehicle serviced at a GM dealer to receive these software updates.
Associated Products (2)Associated Documents - July 21, 2026•Document ID: 11035340Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5099J
- Date Added:
- July 29, 2026
- Manufacturer:
- CHEVROLET
SummaryPI to help diagnose A/C concern
Associated Products (210)2026 Buick Enclave2026 Buick Encore2026 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 Colorado+ 190 moreAssociated Documents - July 14, 2026•Document ID: 11035129Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP6081C
- Date Added:
- July 21, 2026
- Manufacturer:
- CADILLAC
SummaryThis Pi is to let dealer know that a program issue has been released and to not replace any hard for codes P2C8A, P2C8B, U3577, U3578, U3579, U357A, U357B, U357C, U357D, U357E, U357F, U3580, U3581, U3582, U3583, U3584, U2BAA, U2BAB, U2BAC, U2BAD, U2BAE,
Associated Products (11)Associated Documents - July 8, 2026•Document ID: 11034981Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6146A
- Date Added:
- July 13, 2026
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates on a software anomaly for a DTC that sets for the incorrect side and how to address that concern.
Associated Products (11)Associated Documents - June 25, 2026•Document ID: 11034930Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 662.20
- Date Added:
- July 8, 2026
- Manufacturer:
- GMC
Summary• Additional protection for battery health and to help prevent battery drain • Improved charging messaging in the driver display • Improved vehicle diagnostics • Improved vehicle performance when driving in Reverse on slippery surfaces • Better One-Pedal Driving performance • Additional protection for battery health and prevention for battery drain • Improved accuracy for driver display message
Associated Products (2)Associated Documents - June 23, 2026•Document ID: 11034769Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5966F
- Date Added:
- July 7, 2026
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
Associated Products (210)2026 Buick Enclave2026 Buick Encore2026 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 Colorado+ 190 moreAssociated Documents - June 22, 2026•Document ID: 11034939Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 662.20
- Date Added:
- July 8, 2026
- Manufacturer:
- GMC
Summary• The active cabin ventilation feature will operate more reliably • Additional protection for the health of your battery and updates to help prevent excessive battery drain and overheating • Improvements will support successful software updates for your vehicle and allow you to access new features and fixes
Associated Products (2)Associated Documents - June 22, 2026•Document ID: 11034936Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 662.30
- Date Added:
- July 8, 2026
- Manufacturer:
- GMC
Summary• Additional protection for battery health and to help prevent battery drain • Improved charging messaging in the driver display • Improved vehicle diagnostics
Associated Products (2)Associated Documents - June 17, 2026•Document ID: 11034935Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 662.10
- Date Added:
- July 8, 2026
- Manufacturer:
- GMC
Summary• This update enables functionality for King Crab mode. • King Crab mode provides enhanced rear steering for off-road use • To enable this feature, press and hold the right four-wheel steering button on the Drive Mode selector for five seconds • For more information, refer to the Driving and Operating section in the owner's manual
Associated Products (2)Associated Documents - June 15, 2026•Document ID: 11034933Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- N26-G172AL
- Date Added:
- July 8, 2026
- Manufacturer:
- GMC
SummaryThis update contains a required software change to help improve the overall software update and diagnostics process. Be sure to install this update to be able to receive future software updates. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior.
Associated Products (2)Associated Documents - June 15, 2026•Document ID: 11034931Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 661.22
- Date Added:
- July 8, 2026
- Manufacturer:
- GMC
Summary• The active cabin ventilation feature will operate more reliably • Additional protection for the health of your battery and updates to help prevent excessive battery drain and overheating • Improvements will support successful software updates for your vehicle and allow you to access new features and fixes • Improvements to leveling corrections • Improvements to the performance of One-Pedal Driving • Fixes to help maintain Electronic Stability Control and One-Pedal Driving availability after a vehicle software update • Improvements to the power swing gate. • iPhone charging
Associated Products (2)Associated Documents - June 15, 2026•Document ID: 11034928Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 662.11
- Date Added:
- July 8, 2026
- Manufacturer:
- GMC
Summary• Updates to ensure correct speed limit in the driver display • Improvements to driver display messages • Additional protection to help prevent battery drain
Associated Products (2)Associated Documents - June 10, 2026•Document ID: 11034001Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6523
- Date Added:
- June 18, 2026
- Manufacturer:
- CHEVROLET
SummaryThis PI provides diagnostic steps for dealer technicians to verify the condition and ensure that part replacement is necessary
Associated Products (25)2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Chevrolet Colorado2026 Chevrolet Tahoe2026 GMC Canyon2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Chevrolet Colorado2025 Chevrolet Tahoe2025 GMC Canyon2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2024 Chevrolet Colorado2024 GMC Canyon2024 GMC Hummer EV Pickup+ 5 moreAssociated Documents - June 5, 2026•Document ID: 11033755Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP6123
- Date Added:
- June 8, 2026
- Manufacturer:
- CADILLAC
SummaryTechnical Detail: This PI conveys that the vehicles listed may experience a condition where the vehicle is stuck in parallel condition with no codes resulting in slow DC charging and how to remedy this.
Associated Products (3)Associated Documents