Buick / Cadillac / Chevrolet and more recall: Air bags
What is wrong
General Motors, LLC (GM) is recalling certain 2021 Buick Envision, Cadillac CT4, CT5, Escalade, Escalade ESV, Chevrolet Tahoe, Corvette, Suburban, GMC Yukon, Yukon XL vehicles. The communications gateway module incorrectly processes a loss of communication with the sensing diagnostic module (SDM), causing the air bag malfunction indicator light to inconsistently illuminate.
What could happen
The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury.
The fix
The communications gateway module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed on July 1, 2021. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N212338110.
Vehicles covered
- Buick Envision 2021
- Cadillac Ct4 2021
- Cadillac Ct5 2021
- Cadillac Escalade 2021
- Cadillac Escalade Esv 2021
- Chevrolet Corvette 2021
- Chevrolet Suburban 2021
- Chevrolet Tahoe 2021
- Gmc Yukon 2021
- Gmc Yukon Xl 2021
Facts
- NHTSA recall number
- 21V421000
- Type
- Vehicle
- Filed by
- General Motors, LLC
- Reported to NHTSA
- Jun 10, 2021
- Owners notified
- Jul 1, 2021
- Vehicles or items affected
- 285,622
- Started by
- The manufacturer
- Built
- –
- Part
- Air bags › SRS malfunction warning lamp/light; Electrical system › Software
- Maker's own recall number
- N212338110
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Other recalls for the same vehicles
- Cadillac / Chevrolet / Gmc recall: Power train May 7, 2026
- Cadillac / Chevrolet / Gmc recall: Power train Feb 13, 2026
- Cadillac / Chevrolet / Gmc recall: Engine and engine cooling Apr 24, 2025
- Cadillac / Chevrolet / Gmc recall: Power train Oct 24, 2024
- Cadillac / Chevrolet / Gmc recall: Suspension Sep 20, 2023
- Buick / Cadillac / Chevrolet and more recall: Exterior lighting Dec 8, 2022
To check one car, enter its 17-character VIN on the official NHTSA page: a recall may cover only some vehicles of a model year.
Recall data: National Highway Traffic Safety Administration (NHTSA). Nebula is not affiliated with or endorsed by NHTSA.