GMC Hummer EV SUV Service Bulletins
356 manufacturer communications on file.
- October 29, 2025•Document ID: 11024768Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6446
- Date Added:
- November 3, 2025
- 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 (67)2026 Cadillac CT42026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Sierra2026 GMC Yukon2026 GMC Yukon XL2025 Cadillac CT42025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Chevrolet Silverado2025 Chevrolet Suburban+ 47 moreAssociated Documents - October 23, 2025•Document ID: 11024705Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6602M
- Date Added:
- November 2, 2025
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
Associated Products (31)2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Corvette2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Sierra2024 Chevrolet Corvette2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 BrightDrop Zevo2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe+ 11 moreAssociated Documents - October 23, 2025•Document ID: 11024704Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6393F
- Date Added:
- November 2, 2025
- Manufacturer:
- GMC
SummaryThis Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.
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- Mfr Comm. #:
- 653.40
- Date Added:
- October 31, 2025
- Manufacturer:
- GMC
Summary•Improvements to the performance of Super Cruise. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
Associated Products (2)Associated Documents - October 20, 2025•Document ID: 11024668Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 653.30
- Date Added:
- October 31, 2025
- 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. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
Associated Products (2)Associated Documents - October 20, 2025•Document ID: 11024660Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 653.20
- Date Added:
- October 31, 2025
- Manufacturer:
- GMC
SummarySoftware Update for your Model Year 2024 GMC HUMMER EV if your vehicle is equipped: •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 During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
Associated Products (2)Associated Documents - October 18, 2025•Document ID: 11024463Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6602L
- Date Added:
- October 24, 2025
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
Associated Products (31)2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Corvette2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Sierra2024 Chevrolet Corvette2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 BrightDrop Zevo2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe+ 11 moreAssociated Documents - October 18, 2025•Document ID: 11024460Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6425B
- Date Added:
- October 24, 2025
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
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- Mfr Comm. #:
- PIT6425A
- Date Added:
- October 24, 2025
- Manufacturer:
- BUICK
SummaryThis Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's
Associated Products (325)2027 Chevrolet Bolt EV2026 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 Blazer+ 305 moreAssociated Documents - October 16, 2025•Document ID: 11024458Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6551A
- Date Added:
- October 24, 2025
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
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- Mfr Comm. #:
- N232401570
- Date Added:
- October 16, 2025
- Manufacturer:
- CADILLAC
SummaryCertain vehicles listed above may have a condition in which the Battery Energy Control Module will not exit “commissioning” (start-up), because a Cell Monitoring Unit is offline. Dealers will reprogram the Battery Energy Control Module. 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 (10)Associated Documents - October 9, 2025•Document ID: 11024466Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6602K
- Date Added:
- October 24, 2025
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates to dealers steps to follow to obtain an IOK radio.
Associated Products (30)2026 Chevrolet Silverado2026 GMC Sierra2025 Chevrolet Corvette2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Sierra2024 Chevrolet Corvette2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 BrightDrop Zevo2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup+ 10 moreAssociated Documents - October 7, 2025•Document ID: 11023952Service CampaignUNKNOWN OR OTHER
- Mfr Comm. #:
- N252516700
- Date Added:
- October 7, 2025
- Manufacturer:
- GMC
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 - October 4, 2025•Document ID: 11024439Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6440
- Date Added:
- October 24, 2025
- Manufacturer:
- CADILLAC
SummaryThe Driver Information Center may display a message of Transport Mode On after the ignition is cycled.
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- Mfr Comm. #:
- 25-NA-152
- Date Added:
- November 15, 2025
- Manufacturer:
- GMC
Summarythis bulletin advises the tech not to replace the shock for possible air leak, but to replace the air valve on the shock.
Associated Products (12)Associated Documents - October 1, 2025•Document ID: 11023904Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6437
- Date Added:
- October 6, 2025
- Manufacturer:
- GMC
SummaryThis information provides software update information for the K73 Telematics module to correct the symptoms described.
Associated Products (14)Associated Documents - September 30, 2025•Document ID: 11023410Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- N25-251670
- Date Added:
- October 1, 2025
- Manufacturer:
- GMC
Summary• Improvements to battery health diagnostics • Fixes for efficiency when using fast charging stations • Improvements to reliability for climate control and charging • Improvements to the accuracy of efficiency values • Improvements to shifting • Fixes to protect battery health and adjust charge limits • Improvements to diagnostics that impact propulsion, charging, and One-Pedal Driving During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.
Associated Products (3)Associated Documents - September 20, 2025•Document ID: 11023351Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6356C
- Date Added:
- September 26, 2025
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates A vehicle may be encountered with super cruise inop due to not seeing drivers face clearly. The tech is directed to inspect the Infrared LED's on the steering wheel and replace the wheel if necessary.
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- Mfr Comm. #:
- PIT6426
- Date Added:
- September 25, 2025
- Manufacturer:
- GMC
SummaryIf a vehicle has an issue with super cruise inoperative tech is directed to follow a diagnostic path before replacing the Image processing module.
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- Mfr Comm. #:
- PIT6424B
- Date Added:
- September 17, 2025
- Manufacturer:
- GMC
SummaryA vehicle may come in with B3A6B set in history. Tech is directed to clear code and advise the customer an OTA will be released for the code.
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