Mechanic Notes

2021 Chevrolet Corvette Srs Malfunction Warning Lamp/Light recall 21V421000

Safety recall

Component: Air Bags:Srs Malfunction Warning Lamp/Light · Campaign 21V421000 · Reported 10/06/2021

Symptoms / what can 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.

Cause

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 fix, in plain English

Safety recall work is done free by a franchised dealer. Official 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.

Difficulty

Not DIY: recall remedies are performed by a franchised dealer.

Cost

Free to the owner at a dealer while the recall applies. Outside the recall, costs vary; get a written quote.

Typical parts (search links, no affiliate codes)

AutoZone · O'Reilly · Advance · RockAuto

Sources

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