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Recall 21V-421

General Motors, LLC recalled the 2021 Buick Envision and 9 other models: Air bags (srs malfunction warning lamp/light); Electrical system (software).

At a glance

Campaign number
21V-421
Reported
June 10, 2021
Vehicles affected
285,622 estimated by the manufacturer

Source: NHTSA recall records

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.

The risk

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-[removed], Cadillac customer service at 1-[removed], Chevrolet customer service at 1-[removed], or GMC customer service at 1-[removed]. GM's number for this recall is N212338110.

Notes from the manufacturer

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-[removed] (TTY 1-[removed]), or go to [link removed]

Affected vehicles