CarRecallWatch- Component
- AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT; ELECTRICAL SYSTEM:SOFTWARE
- Problem
- 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.
- 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.
- 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.
- 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.
What this recall means for you
Some 2021 GM vehicles have a software problem in the communications gateway module. When that module loses communication with the sensing diagnostic module (SDM), it does not handle the loss correctly, so the air bag malfunction indicator light may come on inconsistently or not at all. The light is meant to warn you when there is a problem with the air bag system.
If the warning light fails to illuminate, you may not know your air bags have a fault. That raises the risk of injury in a crash, because the air bags may not deploy as designed when needed.
The software update is free. A dealer can perform it, or it may be delivered over the air. Check your vehicle's VIN for open recalls, and contact your brand's customer service if you have questions: Buick 1-800-521-7300, Cadillac 1-800-458-8006, Chevrolet 1-800-222-1020, or GMC 1-800-462-8782.
Check whether this recall is open on your vehicle
Official recall notice
Affected vehicles
| Buick Envision | 2021 |
|---|---|
| Cadillac CT4 | 2021 |
| Cadillac CT5 | 2021 |
| Cadillac Escalade | 2021 |
| Cadillac Escalade ESV | 2021 |
| Chevrolet Corvette | 2021 |
| Chevrolet Suburban | 2021 |
| Chevrolet Tahoe | 2021 |
| GMC Yukon | 2021 |
| GMC Yukon XL | 2021 |