Cadillac CT4 Service Bulletins (2022)

739 manufacturer communications on file.

• March 15, 2023•Document ID: 10232936

  Service Bulletin/Repair Instructions
  SEATS

  Mfr Comm. #:

  N222378560-05

  Date Added:

  March 15, 2023

  Manufacturer:

  CHEVROLET

  Summary

  Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the front driver and passenger seat cushion ventilation blowers are not functional on certain 2022-2023 model year vehicles listed above, built beginning March 30, 2022. 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 non-functional seat cushion ventilation blower with a functional one. Note: Some vehicles may also require the Heated/Ventilated Seat retrofit which must be performed prior to completing this procedure. Use IVH to verify if the vehicle is involved in the Heated/Ventilated Seats Retrofit (N212354520 or N212354522).

  Associated Products (21)

  2023 Buick Enclave2023 Cadillac CT42023 Cadillac CT52023 Cadillac XT42023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Yukon2023 GMC Yukon XL2022 Buick Enclave2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Chevrolet Blazer2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Traverse2022 GMC Acadia2022 GMC Yukon+ 1 more
  Associated Documents

  • DownloadMC-10232936-0001.pdf↗
• March 10, 2023•Document ID: 10234213

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIC6496

  Date Added:

  April 17, 2023

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (4)

  2023 Cadillac CT42023 Cadillac CT52022 Cadillac CT42022 Cadillac CT5
  Associated Documents

  • DownloadMC-10234213-0001.pdf↗
• March 10, 2023•Document ID: 10233358

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  23-NA-044

  Date Added:

  March 30, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on AGM batteries that require less frequent charging in storage.

  Associated Products (107)

  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 Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 87 more
  Associated Documents

  • DownloadMC-10233358-0001.pdf↗
• March 8, 2023•Document ID: 10233338

  Service Bulletin/Repair Instructions
  WHEELS; TIRES

  Mfr Comm. #:

  20-NA-159

  Date Added:

  March 30, 2023

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (97)

  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 Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 77 more
  Associated Documents

  • DownloadMC-10233338-0001.pdf↗
• March 8, 2023•Document ID: 10232728

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:WARNING; UNKNOWN OR OTHER; ELECTRICAL SYSTEM

  Mfr Comm. #:

  N222375790-01

  Date Added:

  March 9, 2023

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain 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 replaced

  Associated Products (6)

  2023 Cadillac CT42023 Cadillac CT52023 Chevrolet Corvette2022 Cadillac CT42022 Cadillac CT52022 Chevrolet Corvette
  Associated Documents

  • DownloadMC-10232728-0001.pdf↗
• March 8, 2023•Document ID: 10232719

  Service Bulletin/Repair Instructions
  STEERING; STEERING: STEERING WHEEL/HANDLE BAR

  Mfr Comm. #:

  N222371151-01

  Date Added:

  March 8, 2023

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the heat feature on the steering wheel is not functional on certain 2022 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 (4)

  2022 Cadillac CT42022 Cadillac XT62022 Chevrolet Suburban2022 Chevrolet Tahoe
  Associated Documents

  • DownloadMC-10232719-0001.pdf↗
• March 6, 2023•Document ID: 10234206

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:STARTER ASSEMBLY; BACK OVER PREVENTION

  Mfr Comm. #:

  PIT5832G

  Date Added:

  April 17, 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 (26)

  2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Chevrolet Corvette2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Yukon XL2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade ESV2022 Chevrolet Corvette2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Hummer EV Pickup2022 GMC Yukon XL2021 Buick Envision2021 Cadillac CT4+ 6 more
  Associated Documents

  • DownloadMC-10234206-0001.pdf↗
• March 6, 2023•Document ID: 10234205

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIT5985A

  Date Added:

  April 17, 2023

  Manufacturer:

  CHEVROLET

  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 (27)

  2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Chevrolet Corvette2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Yukon XL2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade ESV2022 Chevrolet Corvette2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Hummer EV Pickup2022 GMC Yukon XL2021 Buick Envision+ 7 more
  Associated Documents

  • DownloadMC-10234205-0001.pdf↗
• February 28, 2023•Document ID: 10232845

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIT5985

  Date Added:

  March 13, 2023

  Manufacturer:

  BUICK

  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 (27)

  2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Chevrolet Corvette2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Hummer EV Pickup2023 GMC Yukon XL2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade ESV2022 Chevrolet Corvette2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Hummer EV Pickup2022 GMC Yukon XL2021 Buick Envision+ 7 more
  Associated Documents

  • DownloadMC-10232845-0001.pdf↗
• February 27, 2023•Document ID: 10232469

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  15-NA-017

  Date Added:

  March 4, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration bulletin provides policy information on Causal Part requirements for transactions submitted to GM for payment.

  Associated Products (106)

  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 Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 86 more
  Associated Documents

  • DownloadMC-10232469-0001.pdf↗
• February 22, 2023•Document ID: 10232052

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  N222371151

  Date Added:

  February 22, 2023

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the heat feature on the steering wheel is not functional on certain 2022-2022 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 (2)

  2022 Cadillac CT42022 Cadillac XT6
  Associated Documents

  • DownloadMC-10232052-0001.pdf↗
• February 22, 2023•Document ID: 10232829

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5883H

  Date Added:

  March 13, 2023

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates vehicles being built without certain options due to a parts shortage.

  Associated Products (41)

  2023 Buick Enclave2023 Buick Encore GX2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade ESV2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 Chevrolet Trailblazer2023 Chevrolet Traverse2023 GMC Acadia2023 GMC Terrain2023 GMC Yukon XL+ 21 more
  Associated Documents

  • DownloadMC-10232829-0001.pdf↗
• February 22, 2023•Document ID: 10232458

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL; BACK OVER PREVENTION:SOFTWARE

  Mfr Comm. #:

  22-NA-127

  Date Added:

  March 4, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides repair information on release of Radio Software Version V160 Update to correct customer concerns of radio software issues.

  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-10232458-0001.pdf↗
• February 21, 2023•Document ID: 10232287

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

  Mfr Comm. #:

  17-NA-073

  Date Added:

  March 3, 2023

  Manufacturer:

  CADILLAC

  Summary

  This warranty administration bulletin provides information regarding the field action courtesy transportation policy.

  Associated Products (106)

  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 Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 86 more
  Associated Documents

  • DownloadMC-10232287-0001.pdf↗
• February 20, 2023•Document ID: 10232288

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

  Mfr Comm. #:

  18-NA-146

  Date Added:

  March 3, 2023

  Manufacturer:

  BUICK

  Summary

  This warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only).

  Associated Products (106)

  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 Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 86 more
  Associated Documents

  • DownloadMC-10232288-0001.pdf↗
• February 17, 2023•Document ID: 10232283

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER; VISIBILITY:GLASS, SIDE/REAR:CRITICAL FASTENERS; STRUCTURE

  Mfr Comm. #:

  PI0754F

  Date Added:

  March 3, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.

  Associated Products (106)

  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 Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 86 more
  Associated Documents

  • DownloadMC-10232283-0001.pdf↗
• February 17, 2023•Document ID: 10232143

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

  Mfr Comm. #:

  18-NA-263

  Date Added:

  February 28, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides policy information for variable diagnostic time allowances on select labor operations (U.S. Only).

  Associated Products (106)

  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 Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 86 more
  Associated Documents

  • DownloadMC-10232143-0001.pdf↗
• February 17, 2023•Document ID: 10232138

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  13-03-10-001J

  Date Added:

  February 28, 2023

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (12)

  2023 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-10232138-0001.pdf↗
• February 16, 2023•Document ID: 10232821

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

  Mfr Comm. #:

  PIT5832F

  Date Added:

  March 13, 2023

  Manufacturer:

  BUICK

  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 (26)

  2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Chevrolet Corvette2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Yukon XL2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade ESV2022 Chevrolet Corvette2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Hummer EV Pickup2022 GMC Yukon XL2021 Buick Envision2021 Cadillac CT4+ 6 more
  Associated Documents

  • DownloadMC-10232821-0001.pdf↗
• February 16, 2023•Document ID: 10232275

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  99-04-20-002N

  Date Added:

  March 3, 2023

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.

  Associated Products (106)

  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 Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Malibu+ 86 more
  Associated Documents

  • DownloadMC-10232275-0001.pdf↗