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NHTSA Campaign 21V421000

ELECTRICAL SYSTEM:SOFTWARE

Issued by General Motors, LLC · Reported Jun 10, 2021 · 285,622 vehicles affected

What's 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.

Consequence

The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury.

Remedy

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 affected by this recall

Make Model Year Units
BUICK ENVISION 2021 285,622
CADILLAC CT4 2021 285,622
CADILLAC CT5 2021 285,622
CADILLAC ESCALADE 2021 285,622
CADILLAC ESCALADE ESV 2021 285,622
CHEVROLET CORVETTE 2021 285,622
CHEVROLET SUBURBAN 2021 285,622
CHEVROLET TAHOE 2021 285,622
GMC YUKON 2021 285,622
GMC YUKON XL 2021 285,622

Source: NHTSA Campaign 21V421000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.