TSB: BUICK ACADIA, BLAZER, CT4, CT5, ENCLAVE, ENVISION, EQUINOX, TERRAIN, TRAVERSE, XT4, XT5, XT6 (2018–2022)

Bulletin 22-NA-107 — May 20, 2022

Bulletin Details

Bulletin ID22-NA-107
ManufacturerBUICK
ModelsACADIA, BLAZER, CT4, CT5, ENCLAVE, ENVISION, EQUINOX, TERRAIN, TRAVERSE, XT4, XT5, XT6
Model Years2018–2022
Date IssuedMay 20, 2022
Date Added to NHTSAAugust 3, 2022
ComponentPOWER TRAIN
Vehicles Affected182 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

This service bulletin provides repair information to correct a customer concern of a Service AWD Message in DIC at Ignition On with DTC C056D Set.

Affected Vehicles

MakeModelYearComponent
GMC ACADIA 2022 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC ACADIA 2022 110000 ELECTRICAL SYSTEM
GMC ACADIA 2022 100000 POWER TRAIN
GMC ACADIA 2022 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET BLAZER 2022 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET BLAZER 2022 110000 ELECTRICAL SYSTEM
CHEVROLET BLAZER 2022 100000 POWER TRAIN
CHEVROLET BLAZER 2022 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC CT4 2022 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC CT4 2022 110000 ELECTRICAL SYSTEM
CADILLAC CT5 2022 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC CT5 2022 110000 ELECTRICAL SYSTEM
BUICK ENCLAVE 2022 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
BUICK ENCLAVE 2022 110000 ELECTRICAL SYSTEM
BUICK ENCLAVE 2022 100000 POWER TRAIN
BUICK ENCLAVE 2022 116000 ELECTRICAL SYSTEM:IGNITION
BUICK ENVISION 2022 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
BUICK ENVISION 2022 110000 ELECTRICAL SYSTEM
BUICK ENVISION 2022 100000 POWER TRAIN
BUICK ENVISION 2022 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET EQUINOX 2022 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET EQUINOX 2022 110000 ELECTRICAL SYSTEM
CHEVROLET EQUINOX 2022 100000 POWER TRAIN
CHEVROLET EQUINOX 2022 116000 ELECTRICAL SYSTEM:IGNITION
GMC TERRAIN 2022 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC TERRAIN 2022 110000 ELECTRICAL SYSTEM
GMC TERRAIN 2022 100000 POWER TRAIN
GMC TERRAIN 2022 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET TRAVERSE 2022 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET TRAVERSE 2022 110000 ELECTRICAL SYSTEM
CHEVROLET TRAVERSE 2022 100000 POWER TRAIN
CHEVROLET TRAVERSE 2022 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC XT4 2022 100000 POWER TRAIN
CADILLAC XT4 2022 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC XT5 2022 100000 POWER TRAIN
CADILLAC XT5 2022 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC XT6 2022 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC XT6 2022 110000 ELECTRICAL SYSTEM
CADILLAC XT6 2022 100000 POWER TRAIN
CADILLAC XT6 2022 116000 ELECTRICAL SYSTEM:IGNITION
GMC ACADIA 2021 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC ACADIA 2021 110000 ELECTRICAL SYSTEM
GMC ACADIA 2021 100000 POWER TRAIN
GMC ACADIA 2021 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET BLAZER 2021 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET BLAZER 2021 110000 ELECTRICAL SYSTEM
CHEVROLET BLAZER 2021 100000 POWER TRAIN
CHEVROLET BLAZER 2021 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC CT4 2021 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC CT4 2021 110000 ELECTRICAL SYSTEM
CADILLAC CT5 2021 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC CT5 2021 110000 ELECTRICAL SYSTEM
BUICK ENCLAVE 2021 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
BUICK ENCLAVE 2021 110000 ELECTRICAL SYSTEM
BUICK ENCLAVE 2021 100000 POWER TRAIN
BUICK ENCLAVE 2021 116000 ELECTRICAL SYSTEM:IGNITION
BUICK ENVISION 2021 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
BUICK ENVISION 2021 110000 ELECTRICAL SYSTEM
BUICK ENVISION 2021 100000 POWER TRAIN
BUICK ENVISION 2021 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET EQUINOX 2021 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET EQUINOX 2021 110000 ELECTRICAL SYSTEM
CHEVROLET EQUINOX 2021 100000 POWER TRAIN
CHEVROLET EQUINOX 2021 116000 ELECTRICAL SYSTEM:IGNITION
GMC TERRAIN 2021 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC TERRAIN 2021 110000 ELECTRICAL SYSTEM
GMC TERRAIN 2021 100000 POWER TRAIN
GMC TERRAIN 2021 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET TRAVERSE 2021 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET TRAVERSE 2021 110000 ELECTRICAL SYSTEM
CHEVROLET TRAVERSE 2021 100000 POWER TRAIN
CHEVROLET TRAVERSE 2021 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC XT4 2021 100000 POWER TRAIN
CADILLAC XT4 2021 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC XT5 2021 100000 POWER TRAIN
CADILLAC XT5 2021 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC XT6 2021 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC XT6 2021 110000 ELECTRICAL SYSTEM
CADILLAC XT6 2021 100000 POWER TRAIN
CADILLAC XT6 2021 116000 ELECTRICAL SYSTEM:IGNITION
GMC ACADIA 2020 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC ACADIA 2020 110000 ELECTRICAL SYSTEM
GMC ACADIA 2020 100000 POWER TRAIN
GMC ACADIA 2020 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET BLAZER 2020 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET BLAZER 2020 110000 ELECTRICAL SYSTEM
CHEVROLET BLAZER 2020 100000 POWER TRAIN
CHEVROLET BLAZER 2020 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC CT4 2020 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC CT4 2020 110000 ELECTRICAL SYSTEM
CADILLAC CT5 2020 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC CT5 2020 110000 ELECTRICAL SYSTEM
BUICK ENCLAVE 2020 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
BUICK ENCLAVE 2020 110000 ELECTRICAL SYSTEM
BUICK ENCLAVE 2020 100000 POWER TRAIN
BUICK ENCLAVE 2020 116000 ELECTRICAL SYSTEM:IGNITION
BUICK ENVISION 2020 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
BUICK ENVISION 2020 110000 ELECTRICAL SYSTEM
BUICK ENVISION 2020 100000 POWER TRAIN
BUICK ENVISION 2020 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET EQUINOX 2020 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET EQUINOX 2020 110000 ELECTRICAL SYSTEM
CHEVROLET EQUINOX 2020 100000 POWER TRAIN
CHEVROLET EQUINOX 2020 116000 ELECTRICAL SYSTEM:IGNITION
GMC TERRAIN 2020 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC TERRAIN 2020 110000 ELECTRICAL SYSTEM
GMC TERRAIN 2020 100000 POWER TRAIN
GMC TERRAIN 2020 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET TRAVERSE 2020 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET TRAVERSE 2020 110000 ELECTRICAL SYSTEM
CHEVROLET TRAVERSE 2020 100000 POWER TRAIN
CHEVROLET TRAVERSE 2020 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC XT4 2020 100000 POWER TRAIN
CADILLAC XT4 2020 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC XT5 2020 100000 POWER TRAIN
CADILLAC XT5 2020 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC XT6 2020 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CADILLAC XT6 2020 110000 ELECTRICAL SYSTEM
CADILLAC XT6 2020 100000 POWER TRAIN
CADILLAC XT6 2020 116000 ELECTRICAL SYSTEM:IGNITION
GMC ACADIA 2019 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC ACADIA 2019 110000 ELECTRICAL SYSTEM
GMC ACADIA 2019 100000 POWER TRAIN
GMC ACADIA 2019 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET BLAZER 2019 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET BLAZER 2019 110000 ELECTRICAL SYSTEM
CHEVROLET BLAZER 2019 100000 POWER TRAIN
CHEVROLET BLAZER 2019 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET EQUINOX 2019 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET EQUINOX 2019 110000 ELECTRICAL SYSTEM
CHEVROLET EQUINOX 2019 100000 POWER TRAIN
CHEVROLET EQUINOX 2019 116000 ELECTRICAL SYSTEM:IGNITION
GMC TERRAIN 2019 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC TERRAIN 2019 110000 ELECTRICAL SYSTEM
GMC TERRAIN 2019 100000 POWER TRAIN
GMC TERRAIN 2019 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET TRAVERSE 2019 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET TRAVERSE 2019 110000 ELECTRICAL SYSTEM
CHEVROLET TRAVERSE 2019 100000 POWER TRAIN
CHEVROLET TRAVERSE 2019 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC XT4 2019 100000 POWER TRAIN
CADILLAC XT4 2019 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC XT5 2019 100000 POWER TRAIN
CADILLAC XT5 2019 116000 ELECTRICAL SYSTEM:IGNITION
GMC ACADIA 2018 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC ACADIA 2018 110000 ELECTRICAL SYSTEM
GMC ACADIA 2018 100000 POWER TRAIN
GMC ACADIA 2018 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET EQUINOX 2018 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET EQUINOX 2018 110000 ELECTRICAL SYSTEM
CHEVROLET EQUINOX 2018 100000 POWER TRAIN
CHEVROLET EQUINOX 2018 116000 ELECTRICAL SYSTEM:IGNITION
GMC TERRAIN 2018 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
GMC TERRAIN 2018 110000 ELECTRICAL SYSTEM
GMC TERRAIN 2018 100000 POWER TRAIN
GMC TERRAIN 2018 116000 ELECTRICAL SYSTEM:IGNITION
CHEVROLET TRAVERSE 2018 103000 POWER TRAIN:AUTOMATIC TRANSMISSION
CHEVROLET TRAVERSE 2018 110000 ELECTRICAL SYSTEM
CHEVROLET TRAVERSE 2018 100000 POWER TRAIN
CHEVROLET TRAVERSE 2018 116000 ELECTRICAL SYSTEM:IGNITION
CADILLAC XT5 2018 100000 POWER TRAIN
CADILLAC XT5 2018 116000 ELECTRICAL SYSTEM:IGNITION

Related BUICK Recalls

CampaignModelYearComponentSummary
REGAL 2013 SUSPENSION:REAR General Motors, LLC (GM) is recalling certain 2012–2013 Buick Regal Turbo and...
REGAL 2012 SUSPENSION:REAR General Motors, LLC (GM) is recalling certain 2012–2013 Buick Regal Turbo and...
ENCLAVE 2026 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...
ENVISION 2026 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER ... General Motors has decided that certain 2027 Chevrolet Bolt EV, 2025-2026 Cad...
VERANO 2014 AIR BAGS:SIDE/WINDOW General Motors, LLC (GM) is recalling certain 2014 Buick Verano and Chevrolet...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized BUICK dealer. Bring this bulletin ID (22-NA-107) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.