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

Air Bags — Srs Malfunction Warning Lamp/Light
Electrical System — Software

Summary
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.
Actions
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.
Documents (13)

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Date Announced
JUN 03, 2021
Vehicles Affected
285,622
Buick Recall #
N212338110
NHTSA Campaign #
21V421000
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