Cadillac XT4 Service Bulletins (2021)

686 manufacturer communications on file.

• December 21, 2021•Document ID: 10207910

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  21NA181

  Date Added:

  February 14, 2022

  Manufacturer:

  GMC

  Summary

  This service bulletin provides 9th gear operation information to respond to customers that may comment on transmission shift operation.

  Associated Products (25)

  2022 Buick Encore GX2022 Buick Envision2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 GMC Acadia2021 Buick Encore GX2021 Buick Envision2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 GMC Acadia2021 GMC Terrain2020 Buick Encore GX2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer+ 5 more
  Associated Documents

  • DownloadMC-10207910-0001.pdf↗
• December 14, 2021•Document ID: 10207917

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

  Mfr Comm. #:

  21NA257

  Date Added:

  February 14, 2022

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides a service procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3075 Set.

  Associated Products (39)

  2022 Buick Encore GX2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Silverado2022 Chevrolet Trailblazer2022 GMC Acadia2022 GMC Sierra2021 Buick Encore GX2021 Cadillac CT42021 Cadillac CT52021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Malibu2021 Chevrolet Silverado+ 19 more
  Associated Documents

  • DownloadMC-10207917-0001.pdf↗
• December 14, 2021•Document ID: 10206726

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP5628E

  Date Added:

  January 24, 2022

  Manufacturer:

  CADILLAC

  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 (838)

  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+ 818 more
  Associated Documents

  • DownloadMC-10206726-0001.pdf↗
• December 13, 2021•Document ID: 10207916

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  21NA256

  Date Added:

  February 14, 2022

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides repair information for dealers/technicians to correct a customer concern of a Malfunction Indicator Lamp Illuminated with DTC P26BB Set.

  Associated Products (37)

  2022 Buick Encore2022 Buick Encore GX2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Cadillac XT52022 Chevrolet Blazer2022 Chevrolet Silverado2022 GMC Acadia2022 GMC Sierra2021 Buick Encore2021 Buick Encore GX2021 Cadillac CT42021 Cadillac CT52021 Cadillac XT42021 Cadillac XT52021 Chevrolet Blazer2021 Chevrolet Silverado2021 GMC Acadia2021 GMC Sierra+ 17 more
  Associated Documents

  • DownloadMC-10207916-0001.pdf↗
• November 29, 2021•Document ID: 10205595

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  21NA279

  Date Added:

  December 27, 2021

  Manufacturer:

  CADILLAC

  Summary

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

  Associated Products (25)

  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+ 5 more
  Associated Documents

  • DownloadMC-10205595-0001.pdf↗
• November 29, 2021•Document ID: 10205554

  Service Bulletin/Repair Instructions
  POWER TRAIN:AUTOMATIC TRANSMISSION

  Mfr Comm. #:

  21NA169

  Date Added:

  December 27, 2021

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides diagnostic information/procedures to aid the service technician in diagnosing 9T45/50/60 automatic transmissions with low mileage and DTCs current or history related to the control solenoids and valves.

  Associated Products (31)

  2022 Buick Encore GX2022 Buick Envision2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Malibu2022 Chevrolet Trailblazer2022 GMC Acadia2022 GMC Terrain2021 Buick Encore GX2021 Buick Envision2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Malibu2021 Chevrolet Trailblazer2021 GMC Acadia2021 GMC Terrain+ 11 more
  Associated Documents

  • DownloadMC-10205554-0001.pdf↗
• November 17, 2021•Document ID: 10205548

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION; EQUIPMENT

  Mfr Comm. #:

  21NA091

  Date Added:

  December 27, 2021

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information for customers/dealers/technicians on Normal Rearview Camera Display Operation - Flashing Diamond - Spot - or UFO like image on Rear View Camera Display.

  Associated Products (29)

  2022 Chevrolet 35002022 Chevrolet Silverado2022 GMC Sierra2021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Chevrolet 35002021 Chevrolet Corvette2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Cadillac CT42020 Cadillac CT52020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT4+ 9 more
  Associated Documents

  • DownloadMC-10205548-0001.pdf↗
• November 12, 2021•Document ID: 10205562

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE

  Mfr Comm. #:

  21NA233

  Date Added:

  December 27, 2021

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin advises the technician to order a winter grille cover if not found in vehicle or to install the cover one time.

  Associated Products (4)

  2022 Cadillac XT42021 Cadillac XT42020 Cadillac XT42019 Cadillac XT4
  Associated Documents

  • DownloadMC-10205562-0001.pdf↗
• November 12, 2021•Document ID: 10205561

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY:BUMPERS:ACTIVE SHUTTERS/GRILL; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  21NA229

  Date Added:

  December 27, 2021

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides a procedure to install a winter grille cover to correct the customer concerns of Poor Engine Performance in Extremely Cold Weather Conditions, Charge Air Cooler Icing, Malfunction Indicator Lamp (MIL) Illuminated.

  Associated Products (3)

  2021 Cadillac XT42020 Cadillac XT42019 Cadillac XT4
  Associated Documents

  • DownloadMC-10205561-0001.pdf↗
• November 12, 2021•Document ID: 10205577

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:COOLING SYSTEM

  Mfr Comm. #:

  21NA257

  Date Added:

  December 27, 2021

  Manufacturer:

  GMC

  Summary

  This service bulletin provides a service procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3075 Set.

  Associated Products (36)

  2022 Buick Encore GX2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Silverado2022 Chevrolet Trailblazer2022 GMC Acadia2022 GMC Sierra2021 Buick Encore GX2021 Cadillac CT42021 Cadillac CT52021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Silverado2021 Chevrolet Trailblazer+ 16 more
  Associated Documents

  • DownloadMC-10205577-0001.pdf↗
• November 9, 2021•Document ID: 10205576

  Service Bulletin/Repair Instructions
  VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:ENGINE COOLANT HOSES AND FITTINGS; EXTERIOR LIGHTING; EQUIPMENT

  Mfr Comm. #:

  21NA256

  Date Added:

  December 27, 2021

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides repair information for dealers/technicians to correct a customer concern of a Malfunction Indicator Lamp Illuminated with DTC P26BB Set.

  Associated Products (29)

  2022 Buick Encore2022 Buick Encore GX2022 Cadillac CT42022 Cadillac CT52022 Cadillac XT42022 Cadillac XT52022 Chevrolet Blazer2022 GMC Acadia2021 Buick Encore2021 Buick Encore GX2021 Cadillac CT42021 Cadillac CT52021 Cadillac XT42021 Cadillac XT52021 Chevrolet Blazer2021 GMC Acadia2020 Buick Encore2020 Buick Encore GX2020 Cadillac CT42020 Cadillac CT5+ 9 more
  Associated Documents

  • DownloadMC-10205576-0001.pdf↗
• November 8, 2021•Document ID: 10205738

  Service Bulletin/Repair Instructions
  TIRES; WHEELS

  Mfr Comm. #:

  030310007K

  Date Added:

  January 3, 2022

  Manufacturer:

  GMC

  Summary

  This service bulletin provides information for dealers/technicians on Tire/Wheel Characteristics (Vibration, Balance, Shake, Flat Spotting) of GM Original Equipment Tires.

  Associated Products (666)

  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+ 646 more
  Associated Documents

  • DownloadMC-10205738-0001.pdf↗
• November 8, 2021•Document ID: 10205539

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  19NA104

  Date Added:

  December 27, 2021

  Manufacturer:

  BUICK

  Summary

  This service bulletin provides information for dealers/technicians and customers on steam/vapor coming from the front grille or radiator area.

  Associated Products (371)

  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 45002022 Chevrolet 4500HD2022 Chevrolet 4500XD2022 Chevrolet 5500HD2022 Chevrolet 5500XD2022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV+ 351 more
  Associated Documents

  • DownloadMC-10205539-0001.pdf↗
• November 5, 2021•Document ID: 10205737

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY:VEHICLE CONTROLS:STEERING

  Mfr Comm. #:

  030091001H

  Date Added:

  January 3, 2022

  Manufacturer:

  CADILLAC

  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 (784)

  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 45002022 Chevrolet 4500HD2022 Chevrolet 4500XD2022 Chevrolet 5500HD2022 Chevrolet 5500XD2022 Chevrolet Blazer2022 Chevrolet Bolt EUV2022 Chevrolet Bolt EV+ 764 more
  Associated Documents

  • DownloadMC-10205737-0001.pdf↗
• August 25, 2021•Document ID: 10205055

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  20NA074

  Date Added:

  December 20, 2021

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides repair information to correct a customer concern of the front fascia paint chipping at headlamp opening.

  Associated Products (4)

  2022 Cadillac XT42021 Cadillac XT42020 Cadillac XT42019 Cadillac XT4
  Associated Documents

  • DownloadMC-10205055-0001.pdf↗
• August 19, 2021•Document ID: 10201318

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  PIC6438B

  Date Added:

  September 13, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a condition where the Video Processing Control Module is not able to be programmed to the vehicle. This PI offeres a couple workarounds while Engineering evaluates the concern.

  Associated Products (37)

  2021 Buick Enclave2021 Buick Encore GX2021 Cadillac CT62021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Equinox2021 Chevrolet Silverado2021 Chevrolet Traverse2021 GMC Acadia2021 GMC Sierra2021 GMC Terrain2020 Buick Enclave2020 Buick Encore GX2020 Cadillac CT62020 Cadillac XT42020 Cadillac XT52020 Cadillac XT6+ 17 more
  Associated Documents

  • DownloadMC-10201318-0001.pdf↗
• August 18, 2021•Document ID: 10201316

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIC6444

  Date Added:

  September 13, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a possible SIM issue with vehicles in the middle east.

  Associated Products (17)

  2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Corvette2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Acadia2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL
  Associated Documents

  • DownloadMC-10201316-0001.pdf↗
• August 11, 2021•Document ID: 10201310

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  PIT3099U

  Date Added:

  September 13, 2021

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication provides information to the technician about installing General Motors Accessory parts/kits.  Technicians should refer to Service Information for information regarding most accessories.  Technicians may also contact PARTECH and/or the Techline Customer Support Center for additional support.

  Associated Products (836)

  2022 Buick Enclave2022 Buick Encore2022 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 Trailblazer2022 Chevrolet Traverse+ 816 more
  Associated Documents

  • DownloadMC-10201310-0001.pdf↗
• August 9, 2021•Document ID: 10201307

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIC6438A

  Date Added:

  September 13, 2021

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates a condition where the Video Processing Control Module is not able to be programmed to the vehicle. This PI offeres a couple workarounds while Engineering evaluates the concern.

  Associated Products (37)

  2021 Buick Enclave2021 Buick Encore GX2021 Cadillac CT62021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Equinox2021 Chevrolet Silverado2021 Chevrolet Traverse2021 GMC Acadia2021 GMC Sierra2021 GMC Terrain2020 Buick Enclave2020 Buick Encore GX2020 Cadillac CT62020 Cadillac XT42020 Cadillac XT52020 Cadillac XT6+ 17 more
  Associated Documents

  • DownloadMC-10201307-0001.pdf↗
• August 6, 2021•Document ID: 10205059

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:12V/24V/48V BATTERY

  Mfr Comm. #:

  20NA132

  Date Added:

  December 20, 2021

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (327)

  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+ 307 more
  Associated Documents

  • DownloadMC-10205059-0001.pdf↗