Chevrolet Suburban Service Bulletins (2027)
12 manufacturer communications on file.
- October 21, 2026•Document ID: 11038745Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6554A
- Date Added:
- October 29, 2026
- Manufacturer:
- CADILLAC
SummaryThis preliminary information is to help technicians decide if the DTC needs to be diagnosed if relating to the concern and if it is not, the DTC can be ignored.
Associated Products (17)2027 Cadillac Escalade2027 Cadillac Escalade ESV2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Chevrolet Silverado2027 Chevrolet Suburban2027 Chevrolet Tahoe2027 GMC Hummer EV Pickup2027 GMC Hummer EV SUV2027 GMC Yukon2027 GMC Yukon XL2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Yukon2026 GMC Yukon XLAssociated Documents - October 16, 2026•Document ID: 11038586Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6663A
- Date Added:
- October 19, 2026
- Manufacturer:
- GMC
SummaryThis PI communicates the possibility of a B1599 and/or B0126 setting and directs to contact TCSC.
Associated Products (5)Associated Documents - October 5, 2026•Document ID: 11038139Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6477D
- Date Added:
- October 6, 2026
- Manufacturer:
- CADILLAC
SummaryThis preliminary PI was created to advise techniians in the field that they will not be able to perform a GDS automated bleed with the scan tool dues to a issue with the software in the scan tool
Associated Products (69)2027 Cadillac Escalade2027 Cadillac Escalade ESV2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Chevrolet Silverado2027 Chevrolet Suburban2027 Chevrolet Tahoe2027 GMC Sierra2027 GMC Yukon2027 GMC Yukon XL2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Chevrolet Silverado2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Sierra+ 49 moreAssociated Documents - October 3, 2026•Document ID: 11038823Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- Telematics 2026.3
- Date Added:
- October 31, 2026
- Manufacturer:
- GMC
Summary• Improved reliability of connected services, including OnStar, Wi-Fi hotspot, and navigation • Enhanced emergency calling performance • Improvements to maintain access to Super Cruise following vehicle software updates • Improved battery management during vehicle software updates
Associated Products (11)Associated Documents - October 2, 2026•Document ID: 11038164Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6554
- Date Added:
- October 6, 2026
- Manufacturer:
- CADILLAC
SummaryThis preliminary information is to help technicians decide if the DTC needs to be diagnosed if relating to the concern and if it is not, the DTC can be ignored.
Associated Products (18)2027 Cadillac Escalade2027 Cadillac Escalade ESV2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Chevrolet Silverado2027 Chevrolet Suburban2027 Chevrolet Tahoe2027 GMC Hummer EV Pickup2027 GMC Hummer EV SUV2027 GMC Sierra2027 GMC Yukon2027 GMC Yukon XL2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Yukon2026 GMC Yukon XLAssociated Documents - September 28, 2026•Document ID: 11038136Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6457C
- Date Added:
- October 5, 2026
- Manufacturer:
- CHEVROLET
SummaryThis preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.
Associated Products (173)2027 Buick Enclave2027 Buick Encore GX2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Blazer2027 Chevrolet Bolt EV2027 Chevrolet Corvette2027 Chevrolet Equinox2027 Chevrolet Suburban2027 Chevrolet Tahoe2027 Chevrolet Trailblazer2027 Chevrolet Traverse2027 GMC Acadia2027 GMC Sierra2027 GMC Terrain2027 GMC Yukon2027 GMC Yukon XL+ 153 moreAssociated Documents - September 28, 2026•Document ID: 11038133Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6551A
- Date Added:
- October 5, 2026
- Manufacturer:
- GMC
SummaryThis preliminary information communicates an issue with of a service theft message after using the rear window defogger. Engineering is currently investigating.
Associated Products (14)Associated Documents - September 28, 2026•Document ID: 11038132Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6540K
- Date Added:
- October 5, 2026
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates to dealers a procedure to reset the radio.
Associated Products (173)2027 Buick Enclave2027 Buick Encore GX2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Blazer2027 Chevrolet Bolt EV2027 Chevrolet Corvette2027 Chevrolet Equinox2027 Chevrolet Suburban2027 Chevrolet Tahoe2027 Chevrolet Trailblazer2027 Chevrolet Traverse2027 GMC Acadia2027 GMC Sierra2027 GMC Terrain2027 GMC Yukon2027 GMC Yukon XL+ 153 moreAssociated Documents - September 28, 2026•Document ID: 11037797Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6368E
- Date Added:
- October 2, 2026
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener. Engineering is working on a new module.
Associated Products (63)2027 Buick Enclave2027 Cadillac Escalade2027 Cadillac Escalade ESV2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Blazer2027 Chevrolet Equinox2027 Chevrolet Silverado2027 Chevrolet Suburban2027 Chevrolet Traverse2027 GMC Acadia2027 GMC Sierra2027 GMC Terrain2027 GMC Yukon2027 GMC Yukon XL2026 Buick Enclave2026 Cadillac Escalade+ 43 moreAssociated Documents - September 26, 2026•Document ID: 11037555Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5698F
- Date Added:
- September 30, 2026
- Manufacturer:
- CADILLAC
SummaryThis PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
Associated Products (619)2027 Buick Enclave2027 Buick Encore GX2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Blazer2027 Chevrolet Bolt EV2027 Chevrolet Corvette2027 Chevrolet Equinox2027 Chevrolet Suburban2027 Chevrolet Tahoe2027 Chevrolet Trailblazer2027 Chevrolet Traverse2027 GMC Acadia2027 GMC Sierra2027 GMC Terrain2027 GMC Yukon2027 GMC Yukon XL+ 599 moreAssociated Documents - September 22, 2026•Document ID: 11037553Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6551
- Date Added:
- September 29, 2026
- Manufacturer:
- CADILLAC
SummaryThis preliminary information communicates an issue with of a service theft message after using the rear window defogger. Engineering is currently investigating.
Associated Products (16)2027 Cadillac Escalade2027 Cadillac Escalade ESV2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Chevrolet Suburban2027 Chevrolet Tahoe2027 GMC Yukon2027 GMC Yukon XL2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Chevrolet Suburban2026 Chevrolet Tahoe2026 GMC Yukon2026 GMC Yukon XLAssociated Documents - September 18, 2026•Document ID: 11037457Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6663
- Date Added:
- September 23, 2026
- Manufacturer:
- GMC
SummaryThis PI communicates the possibility of a B1599 setting and directs to contact TCSC.
Associated Products (5)Associated Documents