Cadillac CT4 Service Bulletins (2024)

390 manufacturer communications on file.

• December 15, 2023•Document ID: 10249294

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; ELECTRICAL SYSTEM:HAND HEATER:WIRING HARNESS

  Mfr Comm. #:

  PIT5962A

  Date Added:

  January 29, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.

  Associated Products (139)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 119 more
  Associated Documents

  • DownloadMC-10249294-0001.pdf↗
• December 13, 2023•Document ID: 10249286

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE; EQUIPMENT:ELECTRICAL

  Mfr Comm. #:

  PIT6097B

  Date Added:

  January 29, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the latest ISO update on Apple 15 phones.

  Associated Products (85)

  2024 Buick Enclave2024 Buick Encore GX2024 Buick Envision2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Traverse2024 GMC Canyon2024 GMC Hummer EV SUV+ 65 more
  Associated Documents

  • DownloadMC-10249286-0001.pdf↗
• December 12, 2023•Document ID: 10247552

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT

  Mfr Comm. #:

  23-NA-219

  Date Added:

  December 21, 2023

  Manufacturer:

  BUICK

  Summary

  This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.

  Associated Products (139)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 119 more
  Associated Documents

  • DownloadMC-10247552-0001.pdf↗
• December 8, 2023•Document ID: 10249281

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:WIRELESS CHARGER/CRADLE

  Mfr Comm. #:

  PIT6097A

  Date Added:

  January 29, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.

  Associated Products (85)

  2024 Buick Enclave2024 Buick Encore GX2024 Buick Envision2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Traverse2024 GMC Canyon2024 GMC Hummer EV SUV+ 65 more
  Associated Documents

  • DownloadMC-10249281-0001.pdf↗
• December 8, 2023•Document ID: 10247192

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

  Mfr Comm. #:

  20-NA-132

  Date Added:

  December 15, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.

  Associated Products (139)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 119 more
  Associated Documents

  • DownloadMC-10247192-0001.pdf↗
• December 7, 2023•Document ID: 10247194

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  23-NA-214

  Date Added:

  December 15, 2023

  Manufacturer:

  BUICK

  Summary

  This informational bulletin provides Information on Purge Pump Part Replacement and Purge Part Number Interchange.

  Associated Products (47)

  2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Colorado2024 Chevrolet Trailblazer2024 Chevrolet Traverse2024 Chevrolet Trax2024 GMC Acadia2024 GMC Canyon2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac XT4+ 27 more
  Associated Documents

  • DownloadMC-10247194-0001.pdf↗
• December 6, 2023•Document ID: 10249270

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL:INFOTAINMENT

  Mfr Comm. #:

  PIT6097

  Date Added:

  January 29, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issue where the vehicles wireless charger no longer works with the lastest ISO update on Apple 15 phones.

  Associated Products (85)

  2024 Buick Enclave2024 Buick Encore GX2024 Buick Envision2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Traverse2024 GMC Canyon2024 GMC Hummer EV SUV+ 65 more
  Associated Documents

  • DownloadMC-10249270-0001.pdf↗
• December 5, 2023•Document ID: 10249267

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER

  Mfr Comm. #:

  PIT5851D

  Date Added:

  January 29, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issues with the odometer being incorrect after a programming event and how the dealership can resolve the issue.

  Associated Products (30)

  2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Chevrolet Corvette2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Yukon XL2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Chevrolet Corvette2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Yukon2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Chevrolet Corvette+ 10 more
  Associated Documents

  • DownloadMC-10249267-0001.pdf↗
• November 30, 2023•Document ID: 10246485

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  20-NA-018

  Date Added:

  December 9, 2023

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for dealers/technicians on MDI 2 Required When Programming Vehicles with Vehicle Intelligence Platform (VIP).

  Associated Products (47)

  2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Traverse2024 GMC Acadia2024 GMC Hummer EV Pickup2024 GMC Hummer EV SUV2024 GMC Yukon2024 GMC Yukon XL2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Chevrolet Colorado+ 27 more
  Associated Documents

  • DownloadMC-10246485-0001.pdf↗
• November 27, 2023•Document ID: 10246491

  Service Bulletin/Repair Instructions
  POWER TRAIN; ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-210

  Date Added:

  December 9, 2023

  Manufacturer:

  CADILLAC

  Summary

  This bulletin provides a procedure to perform a diagnostic check to verify if DTCs P18AE and/or P0700 Set returns when reset and to clear the codes and validate code does not set again.

  Associated Products (7)

  2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV
  Associated Documents

  • DownloadMC-10246491-0001.pdf↗
• November 17, 2023•Document ID: 10247364

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIT5985C

  Date Added:

  December 18, 2023

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed over the air update.

  Associated Products (39)

  2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Chevrolet Corvette2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Hummer EV SUV2024 GMC Yukon XL2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Canyon+ 19 more
  Associated Documents

  • DownloadMC-10247364-0001.pdf↗
• November 17, 2023•Document ID: 10245545

  Service Bulletin/Repair Instructions
  WHEELS; STEERING; SUSPENSION

  Mfr Comm. #:

  17-NA-087

  Date Added:

  November 29, 2023

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining.

  Associated Products (16)

  2024 Cadillac CT42024 Cadillac CT52024 Chevrolet Camaro2024 Chevrolet Corvette2023 Cadillac CT42023 Cadillac CT52023 Chevrolet Camaro2023 Chevrolet Corvette2022 Cadillac CT42022 Cadillac CT52022 Chevrolet Camaro2022 Chevrolet Corvette2021 Cadillac CT42021 Cadillac CT52021 Chevrolet Camaro2021 Chevrolet Corvette
  Associated Documents

  • DownloadMC-10245545-0001.pdf↗
• November 16, 2023•Document ID: 10245559

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING; EQUIPMENT; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

  Mfr Comm. #:

  21-NA-135

  Date Added:

  November 29, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

  Associated Products (126)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 106 more
  Associated Documents

  • DownloadMC-10245559-0001.pdf↗
• November 14, 2023•Document ID: 10247355

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIT5832K

  Date Added:

  December 18, 2023

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly.

  Associated Products (39)

  2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Chevrolet Corvette2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Hummer EV SUV2024 GMC Yukon XL2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Canyon+ 19 more
  Associated Documents

  • DownloadMC-10247355-0001.pdf↗
• November 6, 2023•Document ID: 10245395

  Service Bulletin/Repair Instructions
  WHEELS; STEERING; POWER TRAIN; SUSPENSION; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  03-00-91-001I

  Date Added:

  November 22, 2023

  Manufacturer:

  GMC

  Summary

  This service bulletin provides a vibration analysis worksheet the technician can use in conjunction with the appropriate Vibration Analysis-Road testing procedure when diagnosing vibration concerns.

  Associated Products (138)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 118 more
  Associated Documents

  • DownloadMC-10245395-0001.pdf↗
• October 30, 2023•Document ID: 10245250

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  20-NA-159

  Date Added:

  November 15, 2023

  Manufacturer:

  GMC

  Summary

  This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).

  Associated Products (126)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 106 more
  Associated Documents

  • DownloadMC-10245250-0001.pdf↗
• October 25, 2023•Document ID: 10245248

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  23-NA-189

  Date Added:

  November 15, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.

  Associated Products (138)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 118 more
  Associated Documents

  • DownloadMC-10245248-0001.pdf↗
• October 19, 2023•Document ID: 10246011

  Service Bulletin/Repair Instructions
  POWER TRAIN; EQUIPMENT:MECHANICAL:POWER TAKE-OFF (PTO)

  Mfr Comm. #:

  PIP5943

  Date Added:

  December 4, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication advises the technician on diagnostic aids to help with the diagnosis and repair of 8 Speed Transmissions

  Associated Products (15)

  2024 Cadillac CT42023 Cadillac CT42023 Chevrolet Camaro2023 Chevrolet Colorado2023 GMC Canyon2022 Cadillac CT42022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Express2022 GMC Canyon2021 Cadillac CT42021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Express2021 GMC Canyon
  Associated Documents

  • DownloadMC-10246011-0001.pdf↗
• October 19, 2023•Document ID: 10245194

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  16-NA-361

  Date Added:

  November 10, 2023

  Manufacturer:

  GMC

  Summary

  This service bulletin provides service /diagnostic information to aid with a Transmission Harsh 1-2 Shift Upon First Start Up/Shift of the Day Under Light Throttle.

  Associated Products (22)

  2024 Cadillac CT42024 Chevrolet Camaro2024 Chevrolet Colorado2024 GMC Canyon2024 GMC Savana2023 Cadillac CT42023 Chevrolet Camaro2023 Chevrolet Colorado2023 GMC Canyon2023 GMC Savana2022 Cadillac CT42022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Express2022 GMC Canyon2022 GMC Savana2021 Cadillac CT42021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Express+ 2 more
  Associated Documents

  • DownloadMC-10245194-0001.pdf↗
• October 12, 2023•Document ID: 10244332

  Service Bulletin/Repair Instructions
  WHEELS; EQUIPMENT

  Mfr Comm. #:

  13-03-10-001K

  Date Added:

  October 29, 2023

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on summer tire performance and tire cold weather cracking.

  Associated Products (16)

  2024 Cadillac CT42024 Cadillac CT52024 Chevrolet Camaro2024 Chevrolet Corvette2023 Cadillac CT42023 Cadillac CT52023 Chevrolet Camaro2023 Chevrolet Corvette2022 Cadillac CT42022 Cadillac CT52022 Chevrolet Camaro2022 Chevrolet Corvette2021 Cadillac CT42021 Cadillac CT52021 Chevrolet Camaro2021 Chevrolet Corvette
  Associated Documents

  • DownloadMC-10244332-0001.pdf↗