Cadillac CT4 Service Bulletins (2023)

554 manufacturer communications on file.

• June 7, 2023•Document ID: 10237939

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  22-NA-235

  Date Added:

  June 21, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides repair information to correct a customer concern of Wireless Charging Intermittent When Using iPhone and Samsung Phones at Offset Positions.

  Associated Products (27)

  2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Chevrolet Corvette2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Trailblazer2023 GMC Hummer EV Pickup2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Colorado2022 Chevrolet Corvette+ 7 more
  Associated Documents

  • DownloadMC-10237939-0001.pdf↗
• June 7, 2023•Document ID: 10237846

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

  Mfr Comm. #:

  04-07-30-013E

  Date Added:

  June 19, 2023

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information to dealership personnel on automatic transmission shift and engine driveability concerns and/or MIL ON due to aftermarket oil bath air filter use.

  Associated Products (624)

  2024 Buick Enclave2024 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 Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Trailblazer2024 Chevrolet Traverse+ 604 more
  Associated Documents

  • DownloadMC-10237846-0001.pdf↗
• June 1, 2023•Document ID: 10237841

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

  Mfr Comm. #:

  02-00-89-002V

  Date Added:

  June 19, 2023

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only).

  Associated Products (903)

  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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 883 more
  Associated Documents

  • DownloadMC-10237841-0001.pdf↗
• May 30, 2023•Document ID: 10237387

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  08-07-30-026H

  Date Added:

  June 6, 2023

  Manufacturer:

  BUICK

  Summary

  This service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.

  Associated Products (740)

  2024 Buick Enclave2024 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 Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Trailblazer2024 Chevrolet Traverse+ 720 more
  Associated Documents

  • DownloadMC-10237387-0001.pdf↗
• May 23, 2023•Document ID: 10236602

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  N222375790

  Date Added:

  May 23, 2023

  Manufacturer:

  CHEVROLET

  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 (9)

  2023 Cadillac CT42023 Cadillac CT52023 Chevrolet Corvette2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Chevrolet Corvette2022 Chevrolet Silverado2022 GMC Sierra
  Associated Documents

  • DownloadMC-10236602-0001.pdf↗
• May 22, 2023•Document ID: 10237349

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  22-NA-244

  Date Added:

  June 5, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.

  Associated Products (304)

  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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 284 more
  Associated Documents

  • DownloadMC-10237349-0001.pdf↗
• May 22, 2023•Document ID: 10237340

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  12-03-10-001E

  Date Added:

  June 5, 2023

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).

  Associated Products (850)

  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 Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe+ 830 more
  Associated Documents

  • DownloadMC-10237340-0001.pdf↗
• May 11, 2023•Document ID: 10237654

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

  Mfr Comm. #:

  PIC6496A

  Date Added:

  June 13, 2023

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates the direction a technician needs to take when DTC P30EF is set.

  Associated Products (6)

  2023 Cadillac CT42023 Cadillac CT52023 Chevrolet Blazer2023 GMC Acadia2022 Cadillac CT42022 Cadillac CT5
  Associated Documents

  • DownloadMC-10237654-0001.pdf↗
• May 11, 2023•Document ID: 10237651

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION

  Mfr Comm. #:

  PIT5832H

  Date Added:

  June 13, 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 (37)

  2024 GMC Hummer EV SUV2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Canyon2023 GMC Hummer EV Pickup2023 GMC Sierra2023 GMC Yukon XL2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade ESV2022 Chevrolet Corvette+ 17 more
  Associated Documents

  • DownloadMC-10237651-0001.pdf↗
• May 4, 2023•Document ID: 10237639

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  PIP5921

  Date Added:

  June 13, 2023

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates the possibility of the Intake Cam Actuator cover plate screws backing out and making unwanted contact with the Cam Carrier.

  Associated Products (14)

  2023 Cadillac CT42023 Chevrolet Silverado2023 GMC Sierra2022 Cadillac CT42022 Chevrolet Silverado2022 GMC Sierra2021 Cadillac CT42021 Chevrolet Silverado2021 GMC Sierra2020 Cadillac CT42020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10237639-0001.pdf↗
• May 3, 2023•Document ID: 10236041

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING

  Mfr Comm. #:

  01-08-42-001P

  Date Added:

  May 9, 2023

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information on Exterior Lamp Condensation and Water Leak Information and Replacement Guidelines.

  Associated Products (396)

  2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 Chevrolet Traverse2024 Chevrolet Trax2024 GMC Hummer EV SUV2024 GMC Sierra2024 GMC Terrain2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT6+ 376 more
  Associated Documents

  • DownloadMC-10236041-0001.pdf↗
• May 2, 2023•Document ID: 10236046

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  16-NA-019

  Date Added:

  May 10, 2023

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.

  Associated Products (79)

  2023 Cadillac CT42023 Chevrolet Camaro2023 Chevrolet Express2023 Chevrolet Silverado2023 GMC Savana2023 GMC Sierra2022 Cadillac CT42022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Silverado2022 GMC Canyon2022 GMC Savana2022 GMC Sierra2021 Cadillac CT42021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Express2021 Chevrolet Silverado+ 59 more
  Associated Documents

  • DownloadMC-10236046-0001.pdf↗
• April 27, 2023•Document ID: 10235812

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIE0744

  Date Added:

  May 6, 2023

  Manufacturer:

  CADILLAC

  Summary

  This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to an abnormal engine noise heard and/or engine stalls and will not restart.

  Associated Products (4)

  2023 Cadillac CT42023 Cadillac CT52022 Cadillac CT42022 Cadillac CT5
  Associated Documents

  • DownloadMC-10235812-0001.pdf↗
• April 27, 2023•Document ID: 10235799

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  17-NA-170

  Date Added:

  May 6, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement.

  Associated Products (1156)

  2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 Chevrolet Traverse2024 Chevrolet Trax2024 GMC Hummer EV SUV2024 GMC Sierra2024 GMC Terrain2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT6+ 1136 more
  Associated Documents

  • DownloadMC-10235799-0001.pdf↗
• April 25, 2023•Document ID: 10235798

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  11-00-89-005W

  Date Added:

  May 6, 2023

  Manufacturer:

  GMC

  Summary

  This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

  Associated Products (531)

  2024 Chevrolet Blazer2024 Chevrolet Equinox2024 Chevrolet Silverado2024 Chevrolet Traverse2024 Chevrolet Trax2024 GMC Hummer EV SUV2024 GMC Sierra2024 GMC Terrain2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT6+ 511 more
  Associated Documents

  • DownloadMC-10235798-0001.pdf↗
• April 24, 2023•Document ID: 10235086

  Service Bulletin/Repair Instructions
  VISIBILITY:REARVIEW MIRRORS/DEVICES

  Mfr Comm. #:

  N222388570

  Date Added:

  April 25, 2023

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program - certain vehicles may have been built with an incorrect side blind zone assist mirror. Dealers are to replace both outside rear view mirrors.

  Associated Products (1)

  2023 Cadillac CT4
  Associated Documents

  • DownloadMC-10235086-0001.pdf↗
• April 24, 2023•Document ID: 10235802

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  19-NA-219

  Date Added:

  May 6, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This diagnostic tip bulletin provides additional information on how to diagnose a possible valve, lifter or camshaft issue.

  Associated Products (914)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet 4500HD2023 Chevrolet 5500HD2023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Express2023 Chevrolet Malibu+ 894 more
  Associated Documents

  • DownloadMC-10235802-0001.pdf↗
• April 21, 2023•Document ID: 10235759

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  21-NA-281

  Date Added:

  May 5, 2023

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides diagnostic information for technicians in cases of an ETRS system fault or a no start condition - If the vehicle needs to be moved, it is recommended to use wheel dollies, tire skates or the NEW Manual Park Release tool DT-52910.

  Associated Products (25)

  2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Chevrolet Silverado2023 Chevrolet Suburban2023 GMC Sierra2023 GMC Yukon2023 GMC Yukon XL2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Silverado2022 Chevrolet Suburban2022 GMC Sierra2022 GMC Yukon2022 GMC Yukon XL2021 Cadillac CT42021 Cadillac CT5+ 5 more
  Associated Documents

  • DownloadMC-10235759-0001.pdf↗
• April 21, 2023•Document ID: 10235716

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  12-03-10-001D

  Date Added:

  May 5, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel).

  Associated Products (825)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet 4500HD2023 Chevrolet 5500HD2023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette+ 805 more
  Associated Documents

  • DownloadMC-10235716-0001.pdf↗
• April 19, 2023•Document ID: 10235763

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  22-NA-235

  Date Added:

  May 6, 2023

  Manufacturer:

  GMC

  Summary

  This service bulletin provides repair information to correct a customer concern of Wireless Charging Intermittent When Using iPhone and Samsung Phones at Offset Positions.

  Associated Products (59)

  2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Express2023 Chevrolet Malibu2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe+ 39 more
  Associated Documents

  • DownloadMC-10235763-0001.pdf↗