NHTSA recall 21V-421 (21V421000)
electrical system recall reported June 10, 2021 - about 285,622 vehicles affected.
- NHTSA campaign number
- 21V421000
- Also written as
- 21V-421
- Manufacturer number
- N212338110
- Reported
- June 10, 2021
- Vehicles affected
- ~285,622
- Component
- electrical system
What is being recalled
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.
Why it is dangerous
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 (free at any franchised dealer)
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.
Recall repairs are always free, regardless of vehicle age or where you bought the car. Quote the campaign number 21V-421 when calling a dealer.
Affected 10 models
Each year links to that car's full history: every recall, owner complaints and common problems.
Source: NHTSA recall campaign data (public domain), refreshed weekly. See also the latest recall campaigns.