Cadillac CT4 Service Bulletins (2020)

888 manufacturer communications on file.

• March 3, 2022•Document ID: 10210315

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5843

  Date Added:

  April 18, 2022

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to the dealers information related to a Malfunction Indicator Lamp (MIL) Illuminated During Cold Ambient Temperatures with DTCs P30C3 and/or P30BF  P30C7 P30CB Setting.

  Associated Products (11)

  2022 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-10210315-0001.pdf↗
• February 24, 2022•Document ID: 10208991

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIC6450

  Date Added:

  March 14, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a process to correct the concern of Unable to contact OnStar after the 3G EOL on 2015-2022 model year vehicles in the United States.

  Associated Products (273)

  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 Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer+ 253 more
  Associated Documents

  • DownloadMC-10208991-0001.pdf↗
• February 10, 2022•Document ID: 10215772

  Service Bulletin/Repair Instructions
  PARKING BRAKE:ELECTRICAL:CONTROL MODULE; UNKNOWN OR OTHER

  Mfr Comm. #:

  PIE0661A

  Date Added:

  July 18, 2022

  Manufacturer:

  CHEVROLET

  Summary

  Engineering Information.

  Associated Products (8)

  2022 Buick Envision2021 Buick Envision2021 Cadillac Escalade2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon XL2020 Cadillac CT42020 Cadillac CT5
  Associated Documents

  • DownloadMC-10215772-0001.pdf↗
• February 4, 2022•Document ID: 10214223

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

  Mfr Comm. #:

  21NA135

  Date Added:

  June 21, 2022

  Manufacturer:

  CADILLAC

  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 (143)

  2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu+ 123 more
  Associated Documents

  • DownloadMC-10214223-0001.pdf↗
• February 3, 2022•Document ID: 10208971

  Service Bulletin/Repair Instructions
  TIRES; WHEELS

  Mfr Comm. #:

  PIT3271L

  Date Added:

  March 14, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.

  Associated Products (734)

  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 Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer+ 714 more
  Associated Documents

  • DownloadMC-10208971-0001.pdf↗
• February 1, 2022•Document ID: 10215768

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; ELECTRICAL SYSTEM; STRUCTURE

  Mfr Comm. #:

  22NA044

  Date Added:

  July 18, 2022

  Manufacturer:

  CHEVROLET

  Summary

  Check Engine MIL Illuminated in DIC Set by Body Control Module with DTC P0607

  Associated Products (22)

  2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Corvette2022 Chevrolet Suburban2022 Chevrolet Tahoe2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Corvette2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon2021 GMC Yukon XL2020 Cadillac CT42020 Cadillac CT5+ 2 more
  Associated Documents

  • DownloadMC-10215768-0001.pdf↗
• January 31, 2022•Document ID: 10208076

  Service Bulletin/Repair Instructions
  COMMUNICATION: VEHICLE TO INFRASTRUCTURE

  Mfr Comm. #:

  PIT5762E

  Date Added:

  February 14, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issues with false codes setting in vehicles due to timing issues between the modules.

  Associated Products (17)

  2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade ESV2022 Chevrolet Corvette2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Yukon XL2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade ESV2021 Chevrolet Corvette2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon XL2020 Cadillac CT42020 Cadillac CT52020 Chevrolet Corvette
  Associated Documents

  • DownloadMC-10208076-0001.pdf↗
• January 28, 2022•Document ID: 10213766

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

  Mfr Comm. #:

  990089019W

  Date Added:

  June 13, 2022

  Manufacturer:

  BUICK

  Summary

  This Warranty Administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information.

  Associated Products (317)

  2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet 35002022 Chevrolet 4500HD2022 Chevrolet 5500HD2022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette+ 297 more
  Associated Documents

  • DownloadMC-10213766-0001.pdf↗
• January 28, 2022•Document ID: 10213762

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

  Mfr Comm. #:

  080089014G

  Date Added:

  June 13, 2022

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information for dealers/technicians on Use of Dealer Case Management (DCM) and Being Prepared for Contacting U.S. Technical Assistance (TAC).

  Associated Products (531)

  2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet 35002022 Chevrolet 4500HD2022 Chevrolet 5500HD2022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette+ 511 more
  Associated Documents

  • DownloadMC-10213762-0001.pdf↗
• January 28, 2022•Document ID: 10212633

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

  Mfr Comm. #:

  22NA018

  Date Added:

  May 31, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for the Global Warranty Management (GWM) Warranty Parts Center (WPC) Part Photo Return Process (U.S. Dealers Only).

  Associated Products (280)

  2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet 35002022 Chevrolet 4500HD2022 Chevrolet 5500HD2022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette+ 260 more
  Associated Documents

  • DownloadMC-10212633-0001.pdf↗
• January 27, 2022•Document ID: 10213768

  Service Bulletin/Repair Instructions
  EQUIPMENT; STRUCTURE

  Mfr Comm. #:

  PI0653F

  Date Added:

  June 13, 2022

  Manufacturer:

  CADILLAC

  Summary

  This preliminary informational bulletin provides information on Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center.

  Associated Products (565)

  2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet 35002022 Chevrolet 4500HD2022 Chevrolet 5500HD2022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette+ 545 more
  Associated Documents

  • DownloadMC-10213768-0001.pdf↗
• January 27, 2022•Document ID: 10213765

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, OTHER

  Mfr Comm. #:

  150089004D

  Date Added:

  June 13, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage.

  Associated Products (643)

  2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet 35002022 Chevrolet 4500HD2022 Chevrolet 5500HD2022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette+ 623 more
  Associated Documents

  • DownloadMC-10213765-0001.pdf↗
• January 27, 2022•Document ID: 10213761

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION

  Mfr Comm. #:

  070601016G

  Date Added:

  June 13, 2022

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information on Internal Engine Noise or Damage After Oil Filter Replacement.

  Associated Products (511)

  2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet 35002022 Chevrolet 4500HD2022 Chevrolet 5500HD2022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette+ 491 more
  Associated Documents

  • DownloadMC-10213761-0001.pdf↗
• January 27, 2022•Document ID: 10212603

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  18NA067

  Date Added:

  May 31, 2022

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information for cleaning brake dust off of aluminum or chrome wheels.

  Associated Products (350)

  2022 Buick Enclave2022 Buick Encore2022 Buick Encore GX2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet 35002022 Chevrolet 4500HD2022 Chevrolet 5500HD2022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette+ 330 more
  Associated Documents

  • DownloadMC-10212603-0001.pdf↗
• January 27, 2022•Document ID: 10208066

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION

  Mfr Comm. #:

  PIP5817B

  Date Added:

  February 14, 2022

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the dealers information related to a hot idle tick noise from the engine. Testing to isolate the noise to the upper engine / valve train and repair recommendations related to valve train components.

  Associated Products (24)

  2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 GMC Acadia2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 GMC Acadia2020 Cadillac CT42020 Cadillac CT52020 Cadillac XT42020 Cadillac XT5+ 4 more
  Associated Documents

  • DownloadMC-10208066-0001.pdf↗
• January 26, 2022•Document ID: 10212591

  Service Bulletin/Repair Instructions
  AIR BAGS; POWER TRAIN

  Mfr Comm. #:

  16NA361

  Date Added:

  May 31, 2022

  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 (80)

  2022 Cadillac CT42022 Chevrolet Camaro2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Silverado2022 GMC Canyon2022 GMC Savana2022 GMC Sierra2021 Cadillac CT42021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Express2021 Chevrolet Silverado2021 GMC Canyon2021 GMC Savana2021 GMC Sierra2020 Cadillac CT42020 Cadillac CT62020 Chevrolet Camaro2020 Chevrolet Colorado+ 60 more
  Associated Documents

  • DownloadMC-10212591-0001.pdf↗
• January 26, 2022•Document ID: 10208059

  Service Bulletin/Repair Instructions
  COMMUNICATION

  Mfr Comm. #:

  PIT5832A

  Date Added:

  February 14, 2022

  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 (20)

  2022 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 CT42021 Cadillac CT52021 Cadillac Escalade ESV2021 Chevrolet Corvette2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Yukon XL2020 Cadillac CT42020 Cadillac CT52020 Chevrolet Corvette
  Associated Documents

  • DownloadMC-10208059-0001.pdf↗
• January 26, 2022•Document ID: 10208058

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION

  Mfr Comm. #:

  PIP5817A

  Date Added:

  February 14, 2022

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to the dealers information related to a hot idle tick noise from the engine. Testing to isolate the noise to the upper engine / valve train and repair recommendations related to valve train components.

  Associated Products (28)

  2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Silverado2022 GMC Acadia2022 GMC Sierra2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Silverado2021 GMC Acadia2021 GMC Sierra+ 8 more
  Associated Documents

  • DownloadMC-10208058-0001.pdf↗
• January 25, 2022•Document ID: 10214216

  Service Bulletin/Repair Instructions
  WHEELS; SERVICE BRAKES

  Mfr Comm. #:

  21NA275

  Date Added:

  June 21, 2022

  Manufacturer:

  GMC

  Summary

  This service bulletin provides repair information to correct customer concerns of Rear Wheel Lock Up, ABS Event, Loud Bang and a Flashing ?D? on Driver Information Center (DIC) when Lightly or Moderately Accelerating Forcing an 8-7 or 8-6 Downshift.

  Associated Products (18)

  2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Silverado2020 GMC Sierra2019 Cadillac CT6
  Associated Documents

  • DownloadMC-10214216-0001.pdf↗
• January 24, 2022•Document ID: 10213777

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

  Mfr Comm. #:

  PIE0676

  Date Added:

  June 13, 2022

  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 Engine Coolant Reservoir Being Overfilled with Discolored Coolant, Shudder, Shake, Vibration, Harsh Shift, Delayed Shift and/or Slipping Transmission Performance.

  Associated Products (34)

  2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Sierra2022 GMC Yukon2022 GMC Yukon XL2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL+ 14 more
  Associated Documents

  • DownloadMC-10213777-0001.pdf↗