Cadillac Lyriq Service Bulletins
1,009 manufacturer communications on file.
- February 23, 2026•Document ID: 11029257Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP6043B
- Date Added:
- March 3, 2026
- Manufacturer:
- CADILLAC
SummaryThis Preliminary Information communicates the steps on diagnosing certain EV vehicles with a blank IPC screen, no charge or start concerns. Information includes steps to resolve for various symptoms are provided to the dealership technician.
Associated Products (7)Associated Documents - February 20, 2026•Document ID: 11028942Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6456D
- Date Added:
- February 23, 2026
- Manufacturer:
- CADILLAC
SummaryThis preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back to the vehicle.
Associated Products (68)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 Cadillac XT42026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV+ 48 moreAssociated Documents - February 19, 2026•Document ID: 11028938Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6644
- Date Added:
- February 23, 2026
- Manufacturer:
- CADILLAC
SummaryThis preliminary information is to inform technicians and customers that GM is aware of this issue with Google Maps and are investigating. When a repair is available, this PI will be updated.
Associated Products (1)Associated Documents - February 17, 2026•Document ID: 11028937Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6394C
- Date Added:
- February 23, 2026
- Manufacturer:
- GMC
SummaryA vehicle may have a service driver assist message and the technician cannot get the Long Range Radar learn procedure to complete. Tech is directed to drive a city route to complete the procedure.
Associated Products (41)2026 Buick Enclave2026 Buick Envision2026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Buick Envision2025 Cadillac Celestiq2025 Cadillac CT5+ 21 moreAssociated Documents - February 13, 2026•Document ID: 11028860Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6642A
- Date Added:
- February 18, 2026
- Manufacturer:
- CADILLAC
SummaryThis PI communicates a possible concern with the customer experiencing a service headlamp message on startup and DTC's B1B5F SYM49 and/or B1B60 SYM49 maybe found current or history.
Associated Products (4)Associated Documents - February 4, 2026•Document ID: 11028698Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6635D
- Date Added:
- February 10, 2026
- Manufacturer:
- CADILLAC
SummaryThis preliminary information is to inform technicians that GM is aware of this issue and engineering is currently investigating. Technicians are to not replace any parts at this time.
Associated Products (1)Associated Documents - February 3, 2026•Document ID: 11028697Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6456C
- Date Added:
- February 10, 2026
- Manufacturer:
- CHEVROLET
SummaryThis preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back to the vehicle.
Associated Products (42)2026 Buick Enclave2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Corvette2025 Chevrolet Equinox+ 22 moreAssociated Documents - February 1, 2026•Document ID: 11027914Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 654.40
- Date Added:
- February 1, 2026
- Manufacturer:
- CADILLAC
Summary• Improvements to the infotainment system from Android update. This Android update removes Alexa Built-in (if supported). Google Assistant will remain available. • Fixes to improve responsiveness for the center display, driver display, and camera. • Fixes for Apple CarPlay functionality and connectivity (if supported). • Fixes to help ensure proper functionality for Bluetooth. • Improvements to audio system performance.
Associated Products (1)Associated Documents - February 1, 2026•Document ID: 11027913Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 654.50
- Date Added:
- February 1, 2026
- Manufacturer:
- CADILLAC
Summary• Improvements to the infotainment system from Android update. This Android update removes Alexa Built-in (if supported). Google Assistant will remain available. • Fixes to improve responsiveness for the center display, driver display, and camera. • Fixes for Apple CarPlay functionality and connectivity (if supported). • Fixes to help ensure proper functionality for Bluetooth. • Improvements to audio system performance.
Associated Products (2)Associated Documents - January 30, 2026•Document ID: 11027924Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6642
- Date Added:
- February 1, 2026
- Manufacturer:
- CADILLAC
SummaryThis PI communicates a possible concern with the customer experiencing a service headlamp message on startup and DTC's B1B5F SYM49 and/or B1B60 SYM49 maybe found current or history.
Associated Products (2)Associated Documents - January 29, 2026•Document ID: 11027943Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6635C
- Date Added:
- February 1, 2026
- Manufacturer:
- CADILLAC
SummaryThis preliminary information is to inform technicians that GM is aware of this issue and engineering is currently investigating. Technicians are to not replace any parts at this time.
Associated Products (1)Associated Documents - January 29, 2026•Document ID: 11027925Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6456B
- Date Added:
- February 1, 2026
- Manufacturer:
- CADILLAC
SummaryThis preliminary information communicates an issue with the key fob buttons inoperative and how to resync the fobs back to the vehicle.
Associated Products (40)2026 Buick Enclave2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Tahoe+ 20 moreAssociated Documents - January 28, 2026•Document ID: 11027935Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6639
- Date Added:
- February 1, 2026
- Manufacturer:
- CADILLAC
SummaryThis PI details a possible issue with the heads up display being inop, due to a possible software anomaly.
Associated Products (2)Associated Documents - January 28, 2026•Document ID: 11027946Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6638
- Date Added:
- February 1, 2026
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates to the technician the repair direction needed to address an inaccurate speed limit sign displayed on instrument cluster.
Associated Products (12)Associated Documents - January 28, 2026•Document ID: 11027938Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP6099A
- Date Added:
- February 1, 2026
- Manufacturer:
- CADILLAC
SummaryThis P/I is advising that the TCM should not be replaced for DTC P16F4 and to follow the repair instructions.
Associated Products (16)2026 Buick Enclave2026 Buick Envision2026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2026 GMC Yukon2026 GMC Yukon XLAssociated Documents - January 28, 2026•Document ID: 11027936Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6478
- Date Added:
- February 1, 2026
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates to the field about a normal condition about a message that appears when using a NFC card to start the vehicle when a key fob or a digital key device is not present.
Associated Products (11)Associated Documents - January 27, 2026•Document ID: 11027932Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5985K
- Date Added:
- February 1, 2026
- Manufacturer:
- CADILLAC
SummaryThis PI provides diagnostics tips to dealership techs when trying to diagnose a CAN Bus communication issue after an event like a lightning strike, battery jump started backwards, failure over the air update, etc.
Associated Products (85)2026 Buick Enclave2026 Buick Envision2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Yukon2026 GMC Yukon XL2025 Buick Enclave2025 Buick Envision+ 65 moreAssociated Documents - January 27, 2026•Document ID: 11027825Service CampaignUNKNOWN OR OTHER
- Mfr Comm. #:
- N252494250-01
- Date Added:
- January 27, 2026
- Manufacturer:
- GMC
SummaryCertain vehicles listed above may be missing relevant information regarding the use of snow chains, snow socks, or other traction devices from the Owner’s Manual. Vehicle owners will be mailed an owner’s manual insert to include with other important printed material in the glovebox. For vehicles currently on dealer lots, dealers will include the insert prior to delivery.
Associated Products (12)Associated Documents - January 26, 2026•Document ID: 11027931Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIC6511C
- Date Added:
- February 1, 2026
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates that a front license plate frame may cause interference with the park assist sensors.
Associated Products (10)Associated Documents - January 22, 2026•Document ID: 11027915Over The AirUNKNOWN OR OTHER
- Mfr Comm. #:
- 654.70
- Date Added:
- February 1, 2026
- Manufacturer:
- CADILLAC
Summary• Fixes to help protect battery health.
Associated Products (1)Associated Documents