Cadillac CT4 Service Bulletins (2022)

739 manufacturer communications on file.

• September 21, 2023•Document ID: 10244174

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  23-NA-154

  Date Added:

  October 16, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).

  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-10244174-0001.pdf↗
• September 19, 2023•Document ID: 10243981

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  21-NA-279

  Date Added:

  October 14, 2023

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides a procedure to replace the starter if found the cause of the rattle noise.

  Associated Products (24)

  2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 GMC Acadia2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 GMC Acadia2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac XT4+ 4 more
  Associated Documents

  • DownloadMC-10243981-0001.pdf↗
• September 19, 2023•Document ID: 10242556

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  N222371151-11

  Date Added:

  September 20, 2023

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program. Opened more VINs for repair.

  Associated Products (14)

  2023 Cadillac XT42022 Buick Enclave2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Traverse2022 GMC Acadia2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-10242556-0001.pdf↗
• September 11, 2023•Document ID: 10242172

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

  Mfr Comm. #:

  N222395370

  Date Added:

  September 11, 2023

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program. On certain vehicles, the engine wire harness may contact the brake line, and/or brake line coupler, and/or thermostat housing at rear/top of engine. Dealers will install an anti-abrasion sleeve and secure the harness away from the brake line.

  Associated Products (2)

  2023 Cadillac CT42022 Cadillac CT4
  Associated Documents

  • DownloadMC-10242172-0001.pdf↗
• September 11, 2023•Document ID: 10242171

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  N222371151-11

  Date Added:

  September 11, 2023

  Manufacturer:

  CHEVROLET

  Summary

  Customer Satisfaction Program. Remaining CT4 and CT5 VINs released to open.

  Associated Products (14)

  2023 Cadillac XT42022 Buick Enclave2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Traverse2022 GMC Acadia2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-10242171-0001.pdf↗
• September 8, 2023•Document ID: 10242844

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  17-NA-157

  Date Added:

  September 26, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the possibilities of what may happen using the incorrect filter.

  Associated Products (127)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Trailblazer+ 107 more
  Associated Documents

  • DownloadMC-10242844-0001.pdf↗
• September 5, 2023•Document ID: 10243717

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

  Mfr Comm. #:

  23-NA-154

  Date Added:

  October 7, 2023

  Manufacturer:

  CADILLAC

  Summary

  This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only).

  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-10243717-0001.pdf↗
• September 5, 2023•Document ID: 10241935

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  N222375790-07

  Date Added:

  September 6, 2023

  Manufacturer:

  GMC

  Summary

  Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain 2022 and 2023 model year vehicles, built beginning December 2, 2021. The affected vehicle owners should have been made aware of the condition at sale, and notified, that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Dealers are to replace the park assist control module and setup the serial data gateway module to restore the Park Assist feature. Some vehicles may also need additional modules to be reprogrammed.

  Associated Products (14)

  2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Chevrolet Corvette2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Corvette2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-10241935-0001.pdf↗
• September 5, 2023•Document ID: 10241792

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  N222371151-11

  Date Added:

  September 5, 2023

  Manufacturer:

  GMC

  Summary

  Customer Satisfaction. Due to the industry-wide semiconductor shortage, the heat feature on the steering wheel is not functional on certain 2022-2023 model year vehicles listed above, built beginning November 17, 2021. The affected vehicle owners should have been made aware of the condition at sale, and notified that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Dealers are to replace the steering wheel assembly.

  Associated Products (14)

  2023 Cadillac XT42022 Buick Enclave2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Traverse2022 GMC Acadia2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-10241792-0001.pdf↗
• September 1, 2023•Document ID: 10242843

  Service Bulletin/Repair Instructions
  POWER TRAIN; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  23-NA-153

  Date Added:

  September 26, 2023

  Manufacturer:

  CHEVROLET

  Summary

  The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.

  Associated Products (127)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Trailblazer+ 107 more
  Associated Documents

  • DownloadMC-10242843-0001.pdf↗
• September 1, 2023•Document ID: 10242842

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

  Mfr Comm. #:

  18-NA-306

  Date Added:

  September 26, 2023

  Manufacturer:

  GMC

  Summary

  This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).

  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-10242842-0001.pdf↗
• August 30, 2023•Document ID: 10242322

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

  Mfr Comm. #:

  PIT5832J

  Date Added:

  September 18, 2023

  Manufacturer:

  GMC

  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-10242322-0001.pdf↗
• August 30, 2023•Document ID: 10242320

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIT5985B

  Date Added:

  September 18, 2023

  Manufacturer:

  GMC

  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-10242320-0001.pdf↗
• August 24, 2023•Document ID: 10242309

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP5621D

  Date Added:

  September 18, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the dealer  technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC.

  Associated Products (51)

  2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer2022 Chevrolet Traverse+ 31 more
  Associated Documents

  • DownloadMC-10242309-0001.pdf↗
• August 24, 2023•Document ID: 10242262

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  18-NA-073

  Date Added:

  September 15, 2023

  Manufacturer:

  GMC

  Summary

  This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.

  Associated Products (127)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Trailblazer+ 107 more
  Associated Documents

  • DownloadMC-10242262-0001.pdf↗
• August 21, 2023•Document ID: 10242306

  Service Bulletin/Repair Instructions
  ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)

  Mfr Comm. #:

  PIT6050

  Date Added:

  September 18, 2023

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates to dealership technicians that if they receive a radio with the 2 stickers as noted above, the radio was remanufactured with missing components and will need to order another radio unit from the ESC to properly repair the vehicle at this time.

  Associated Products (55)

  2023 Buick Enclave2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Trailblazer2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Terrain2022 Buick Enclave+ 35 more
  Associated Documents

  • DownloadMC-10242306-0001.pdf↗
• August 21, 2023•Document ID: 10241159

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE

  Mfr Comm. #:

  N222375790-06

  Date Added:

  August 22, 2023

  Manufacturer:

  GMC

  Summary

  Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain 2022 and 2023 model year vehicles, built beginning December 2, 2021. The affected vehicle owners should have been made aware of the condition at sale, and notified, that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Dealers are to replace the park assist control module and setup the serial data gateway module to restore the Park Assist feature. Some vehicles may also need additional modules to be reprogrammed.

  Associated Products (14)

  2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Chevrolet Corvette2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Corvette2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Yukon2022 GMC Yukon XL
  Associated Documents

  • DownloadMC-10241159-0001.pdf↗
• August 18, 2023•Document ID: 10242207

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  18-NA-306

  Date Added:

  September 13, 2023

  Manufacturer:

  CADILLAC

  Summary

  This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).

  Associated Products (124)

  2024 Buick Enclave2024 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 Tahoe2024 Chevrolet Trailblazer+ 104 more
  Associated Documents

  • DownloadMC-10242207-0001.pdf↗
• August 15, 2023•Document ID: 10242206

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  09-00-89-016H

  Date Added:

  September 13, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration bulletin provides information on the proper use of the labor operation 0600014.

  Associated Products (136)

  2024 Buick Enclave2024 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 Tahoe2024 Chevrolet Trailblazer+ 116 more
  Associated Documents

  • DownloadMC-10242206-0001.pdf↗
• August 10, 2023•Document ID: 10242298

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIP5628G

  Date Added:

  September 18, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

  Associated Products (51)

  2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer2022 Chevrolet Traverse+ 31 more
  Associated Documents

  • DownloadMC-10242298-0001.pdf↗