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June 3, 2021 NHTSA CAMPAIGN NUMBER: 21V421000
Air Bag Light May Not Indicate Malfunction
The air bag malfunction indicator light may fail to warn the driver of a problem with the air bag, increasing the risk of injury.
NHTSA Campaign Number: 21V421
Manufacturer General Motors, LLC
Components ELECTRICAL SYSTEM, AIR BAGS
Potential Number of Units Affected 285,622
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.
Remedy
Dealers will update the software in the communications gateway module, 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.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.