Cadillac Lyriq Service Bulletins (2023)

802 manufacturer communications on file.

• June 11, 2025•Document ID: 11019690

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6552F

  Date Added:

  June 24, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates how to recover the Image Processing Module.

  Associated Products (3)

  2025 Cadillac Lyriq2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11019690-0001.pdf↗
• June 10, 2025•Document ID: 11019823

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6180A

  Date Added:

  June 29, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates assistance in locating the Rear seat belt comfort guides in the parts catalog.

  Associated Products (415)

  2026 Buick Enclave2026 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 BrightDrop2026 Chevrolet Colorado+ 395 more
  Associated Documents

  • DownloadMC-11019823-0001.pdf↗
• June 9, 2025•Document ID: 11019693

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP4902S

  Date Added:

  June 24, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

  Associated Products (731)

  2026 Buick Enclave2026 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 BrightDrop2026 Chevrolet Colorado+ 711 more
  Associated Documents

  • DownloadMC-11019693-0001.pdf↗
• June 7, 2025•Document ID: 11026104

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  25-NA-156

  Date Added:

  December 4, 2025

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on Tire Sidewall Irregularities.

  Associated Products (710)

  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 BrightDrop+ 690 more
  Associated Documents

  • DownloadMC-11026104-0001.pdf↗
• June 2, 2025•Document ID: 11018802

  Service Campaign
  ENGINE

  Mfr Comm. #:

  N252502390

  Date Added:

  June 2, 2025

  Manufacturer:

  GMC

  Summary

  Service Update. Certain vehicles listed above may require software updates that improve the customer experience and optimize future over-the-air updates. Dealers will perform a comprehensive software update.

  Associated Products (4)

  2023 BrightDrop Zevo2023 Cadillac Lyriq2023 GMC Hummer EV Pickup2022 GMC Hummer EV Pickup
  Associated Documents

  • DownloadMC-11018802-0001.pdf↗
• May 30, 2025•Document ID: 11019074

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5074R

  Date Added:

  June 4, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

  Associated Products (1004)

  2026 Buick Enclave2026 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 BrightDrop2026 Chevrolet Colorado+ 984 more
  Associated Documents

  • DownloadMC-11019074-0001.pdf↗
• May 30, 2025•Document ID: 11019073

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5074R

  Date Added:

  June 4, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

  Associated Products (1004)

  2026 Buick Enclave2026 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 BrightDrop2026 Chevrolet Colorado+ 984 more
  Associated Documents

  • DownloadMC-11019073-0001.pdf↗
• May 30, 2025•Document ID: 11019072

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5074R

  Date Added:

  June 4, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.

  Associated Products (1004)

  2026 Buick Enclave2026 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 BrightDrop2026 Chevrolet Colorado+ 984 more
  Associated Documents

  • DownloadMC-11019072-0001.pdf↗
• May 27, 2025•Document ID: 11019071

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5981F

  Date Added:

  June 4, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates ordering process for the front and rear drive units are on restriction for all listed EV vehicles for engineering review.

  Associated Products (23)

  2026 Cadillac Escalade ESV2026 Cadillac Vistiq2026 Chevrolet BrightDrop2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Sierra2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra2023 BrightDrop Zevo+ 3 more
  Associated Documents

  • DownloadMC-11019071-0001.pdf↗
• May 22, 2025•Document ID: 11018659

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5966E

  Date Added:

  May 29, 2025

  Manufacturer:

  CADILLAC

  Summary

  This 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 (228)

  2026 Buick Enclave2026 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 BrightDrop2026 Chevrolet Colorado+ 208 more
  Associated Documents

  • DownloadMC-11018659-0001.pdf↗
• May 20, 2025•Document ID: 11018647

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6356B

  Date Added:

  May 29, 2025

  Manufacturer:

  CADILLAC

  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 (31)

  2026 Cadillac Celestiq2026 Cadillac Vistiq2025 Buick Enclave2025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Optiq2025 Chevrolet Blazer2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 Chevrolet Traverse2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Sierra2025 GMC Yukon2025 GMC Yukon XL2024 Cadillac Escalade+ 11 more
  Associated Documents

  • DownloadMC-11018647-0001.pdf↗
• May 19, 2025•Document ID: 11018718

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N25-250020

  Date Added:

  May 30, 2025

  Manufacturer:

  CADILLAC

  Summary

  •Improves how center display adjusts to lighting changes. •Improved warnings when a key is missing. •Better tuning for interior lighting in Stealth mode. •Improvements to automatic low beam headlamp logic. •Smoother dimming and transitions from day to night. 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-11018718-0001.pdf↗
• May 17, 2025•Document ID: 11018491

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6537C

  Date Added:

  May 20, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates that a noise or vibration maybe heard from the A/C compressor and that Engineering is working on a resolution.

  Associated Products (3)

  2025 Cadillac Lyriq2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11018491-0001.pdf↗
• May 17, 2025•Document ID: 11023367

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM

  Mfr Comm. #:

  22-NA-083

  Date Added:

  September 27, 2025

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides Requirements for Replacement of the Dual Mode Cord Set Under Warranty.

  Associated Products (23)

  2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Blazer2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Sierra2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra2023 Cadillac Lyriq2023 Chevrolet Bolt EUV+ 3 more
  Associated Documents

  • DownloadMC-11023367-0001.pdf↗
• May 16, 2025•Document ID: 11023484

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-151

  Date Added:

  October 2, 2025

  Manufacturer:

  GMC

  Summary

  This service bulletin and criteria within are to determine the internal state of the High Voltage Battery and core return shipping method.

  Associated Products (24)

  2026 Cadillac Escalade ESV2026 Cadillac Vistiq2025 Cadillac Celestiq2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Sierra2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Sierra+ 4 more
  Associated Documents

  • DownloadMC-11023484-0001.pdf↗
• May 15, 2025•Document ID: 11023388

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  PIE0753I

  Date Added:

  September 30, 2025

  Manufacturer:

  GMC

  Summary

  This engineering information (EI) will assist GM to recover a small number of electric vehicle battery packs from customer-owned vehicles in the field for further engineering study and analysis.

  Associated Products (35)

  2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Vistiq2025 Cadillac Celestiq2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Sierra2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado+ 15 more
  Associated Documents

  • DownloadMC-11023388-0001.pdf↗
• May 15, 2025•Document ID: 11018323

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N232427510-02

  Date Added:

  May 15, 2025

  Manufacturer:

  GMC

  Summary

  Certain 2018-2024 model year vehicles are receiving a software enhancement for SuperCruise. Dealers will update the Engine Control Module, Powertrain Control Module, Hybrid Powertrain Control Module 2 (HPCM2) or Drive Motor Control Module.

  Associated Products (48)

  2024 Buick Envision2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Escalade ESV2024 Cadillac Lyriq2024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Traverse2024 GMC Acadia2024 GMC Hummer EV Pickup2024 GMC Sierra2024 GMC Yukon2024 GMC Yukon XL2023 Cadillac CT42023 Cadillac CT5+ 28 more
  Associated Documents

  • DownloadMC-11018323-0001.pdf↗
• May 14, 2025•Document ID: 11024941

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-NA-126

  Date Added:

  November 5, 2025

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on the wireless charging feature not working or intermittently working, with the replacement of the Wireless Charging Module.

  Associated Products (2)

  2024 Cadillac Lyriq2023 Cadillac Lyriq
  Associated Documents

  • DownloadMC-11024941-0001.pdf↗
• May 14, 2025•Document ID: 11024498

  Service Bulletin/Repair Instructions
  FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM

  Mfr Comm. #:

  25-NA-044

  Date Added:

  October 27, 2025

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information for dealers/technicians on SPS2 Hybrid/EV Battery Data Retrieval for Service High Voltage DTCs.

  Associated Products (26)

  2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Vistiq2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Sierra2024 BrightDrop Zevo2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup+ 6 more
  Associated Documents

  • DownloadMC-11024498-0001.pdf↗
• May 14, 2025•Document ID: 11024496

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  24-NA-202

  Date Added:

  October 27, 2025

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides dealers with Warranty Administration information on North American Charging Standard (NACS) DC Adapter Warranty Claim Information.

  Associated Products (30)

  2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Chevrolet Blazer2025 Chevrolet Equinox2025 Chevrolet Silverado2025 GMC Hummer EV Pickup2025 GMC Hummer EV SUV2025 GMC Sierra2024 Cadillac Lyriq2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2023 Cadillac Lyriq2023 Chevrolet Bolt EUV+ 10 more
  Associated Documents

  • DownloadMC-11024496-0001.pdf↗