Cadillac Lyriq Service Bulletins

1,009 manufacturer communications on file.

• October 29, 2025•Document ID: 11024768

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6446

  Date Added:

  November 3, 2025

  Manufacturer:

  CADILLAC

  Summary

  This PI Communicates information to ensure Memory Recall is enabled to ensure memory mirrors return to set position after curbview assist is used.

  Associated Products (54)

  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+ 34 more
  Associated Documents

  • DownloadMC-11024768-0001.pdf↗
• October 23, 2025•Document ID: 11024704

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6393F

  Date Added:

  November 2, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.

  Associated Products (34)

  2026 Buick Enclave2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Hummer EV Pickup2026 GMC Hummer EV SUV2026 GMC Terrain2025 Buick Enclave2025 Buick Envision2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Tahoe+ 14 more
  Associated Documents

  • DownloadMC-11024704-0001.pdf↗
• October 22, 2025•Document ID: 11024420

  Service Campaign
  SERVICE BRAKES

  Mfr Comm. #:

  N252521980

  Date Added:

  October 22, 2025

  Manufacturer:

  CADILLAC

  Summary

  Certain vehicles, may have a condition in which the Brake System Control Module does not have the latest software. Dealers are to reprogram the Brake System Control Module.

  Associated Products (4)

  2024 Cadillac Lyriq2023 Cadillac Lyriq2023 Chevrolet Colorado2023 GMC Canyon
  Associated Documents

  • DownloadMC-11024420-0001.pdf↗
• October 18, 2025•Document ID: 11024465

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6485D

  Date Added:

  October 24, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates that the upper compressor mount could be twisted causing a vibration or noise concern while the compressor is running.

  Associated Products (4)

  2026 Cadillac Lyriq2025 Cadillac Lyriq2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11024465-0001.pdf↗
• October 18, 2025•Document ID: 11024460

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6425B

  Date Added:

  October 24, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's

  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 more
  Associated Documents

  • DownloadMC-11024460-0001.pdf↗
• October 17, 2025•Document ID: 11024455

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6425A

  Date Added:

  October 24, 2025

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates to the field on how to diagnosis a GPS issue with the Telematic module with no DTC's

  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 more
  Associated Documents

  • DownloadMC-11024455-0001.pdf↗
• October 16, 2025•Document ID: 11024458

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6551A

  Date Added:

  October 24, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues

  Associated Products (176)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac Celestiq2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox+ 156 more
  Associated Documents

  • DownloadMC-11024458-0001.pdf↗
• October 16, 2025•Document ID: 11024337

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N232401570

  Date Added:

  October 16, 2025

  Manufacturer:

  GMC

  Summary

  Certain 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 (6)

  2024 Cadillac Lyriq2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11024337-0001.pdf↗
• October 15, 2025•Document ID: 11024640

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N24-248269

  Date Added:

  October 31, 2025

  Manufacturer:

  CADILLAC

  Summary

  • A variety of software improvements were made to make your in-vehicle driving experience better. 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 when an update package is onboard the vehicle. Do not service your vehicle during installation.

  Associated Products (1)

  2025 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11024640-0001.pdf↗
• October 15, 2025•Document ID: 11024639

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N24-248448

  Date Added:

  October 31, 2025

  Manufacturer:

  CADILLAC

  Summary

  • A variety of software improvements were made to make your in-vehicle driving experience better. 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 when an update package is onboard the vehicle. Do not service your vehicle during installation.

  Associated Products (1)

  2024 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11024639-0001.pdf↗
• October 7, 2025•Document ID: 11024638

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  653.30

  Date Added:

  October 31, 2025

  Manufacturer:

  CADILLAC

  Summary

  •Improvements to accuracy of Park Assist messaging. •Fixes to improve performance of driver assistance systems and rear view camera. •Improvements to responsiveness of rear view camera. •Fixes to address Super Cruise disengaging erroneously. 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 (1)

  2025 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11024638-0001.pdf↗
• October 7, 2025•Document ID: 11024636

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  653.40

  Date Added:

  October 31, 2025

  Manufacturer:

  CADILLAC

  Summary

  •Improvements to accuracy of Park Assist messaging. •Fixes to improve performance of driver assistance systems and rear view camera. •Improvements to responsiveness of rear view camera. •Fixes to address Super Cruise disengaging erroneously. 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 (1)

  2024 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11024636-0001.pdf↗
• October 7, 2025•Document ID: 11024635

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  653.50

  Date Added:

  October 31, 2025

  Manufacturer:

  CADILLAC

  Summary

  •Improvements to accuracy of Park Assist messaging. •Fixes to improve performance of driver assistance systems and rear view camera. •Improvements to responsiveness of rear view camera. •Fixes to address Super Cruise disengaging erroneously. 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 (1)

  2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11024635-0001.pdf↗
• October 4, 2025•Document ID: 11024437

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6621

  Date Added:

  October 24, 2025

  Manufacturer:

  CADILLAC

  Summary

  This PI addresses a possible roll up then down window message.

  Associated Products (4)

  2026 Cadillac Lyriq2025 Cadillac Lyriq2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11024437-0001.pdf↗
• October 4, 2025•Document ID: 11024439

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6440

  Date Added:

  October 24, 2025

  Manufacturer:

  GMC

  Summary

  The Driver Information Center may display a message of Transport Mode On after the ignition is cycled.

  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 more
  Associated Documents

  • DownloadMC-11024439-0001.pdf↗
• October 4, 2025•Document ID: 11024438

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6393E

  Date Added:

  October 24, 2025

  Manufacturer:

  GMC

  Summary

  This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.

  Associated Products (31)

  2026 Buick Enclave2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2025 Buick Enclave2025 Buick Envision2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Acadia+ 11 more
  Associated Documents

  • DownloadMC-11024438-0001.pdf↗
• October 1, 2025•Document ID: 11023907

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6393D

  Date Added:

  October 6, 2025

  Manufacturer:

  BUICK

  Summary

  This Preliminary Information is to inform customers to follow diagnostics if resetting, disconnecting the module did not correct it.

  Associated Products (32)

  2026 Buick Enclave2026 Cadillac Vistiq2026 Chevrolet Equinox2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Terrain2025 Buick Enclave2025 Buick Envision2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Acadia+ 12 more
  Associated Documents

  • DownloadMC-11023907-0001.pdf↗
• October 1, 2025•Document ID: 11023903

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6411B

  Date Added:

  October 6, 2025

  Manufacturer:

  GMC

  Summary

  This information provides software update information for the K73 Telematics module to correct the symptoms described.

  Associated Products (22)

  2026 Buick Envision2026 Cadillac CT52026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac XT42026 Chevrolet Colorado2026 Chevrolet Equinox2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Canyon2026 GMC Terrain2025 Buick Envision2025 Cadillac CT52025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Equinox2025 Chevrolet Traverse+ 2 more
  Associated Documents

  • DownloadMC-11023903-0001.pdf↗
• September 27, 2025•Document ID: 11023900

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6607B

  Date Added:

  October 6, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates not to replace the Image processing Module if the following DTC's are history - U3000 SYM49, U1624, U0140, U023B SYM00, U053C, B1DD SYM57.

  Associated Products (15)

  2026 Buick Enclave2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Chevrolet Tahoe2026 Chevrolet Traverse2026 GMC Acadia2026 GMC Yukon2026 GMC Yukon XL
  Associated Documents

  • DownloadMC-11023900-0001.pdf↗
• September 20, 2025•Document ID: 11023351

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6356C

  Date Added:

  September 26, 2025

  Manufacturer:

  GMC

  Summary

  This 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.

  Associated Products (32)

  2026 Cadillac Vistiq2025 Buick Enclave2025 Cadillac Celestiq2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT62025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Cadillac Lyriq+ 12 more
  Associated Documents

  • DownloadMC-11023351-0001.pdf↗