Recall 21V-421: 2021 Buick Envision, 2021 Cadillac CT4 and 8 more
General Motors, LLC recall for air bags, reported to NHTSA on Jun 10, 2021, covering about 285,622 vehicles.
The 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.
The 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.
The fix
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.
Recall details
| Manufacturer | General Motors, LLC |
|---|---|
| Component | Air Bags › Srs Malfunction Warning Lamp/Light Electrical System › Software |
| Recall started by | the manufacturer |
| NHTSA campaign number | 21V421000 |
Vehicles in this recall
| Vehicle | Model years | |
|---|---|---|
| Buick Envision | 2021 | All years |
| Cadillac CT4 | 2021 | All years |
| Cadillac CT5 | 2021 | All years |
| Cadillac Escalade | 2021 | All years |
| Cadillac Escalade ESV | 2021 | All years |
| Chevrolet Corvette | 2021 | All years |
| Chevrolet Suburban | 2021 | All years |
| Chevrolet Tahoe | 2021 | All years |
| GMC Yukon | 2021 | All years |
| GMC Yukon XL | 2021 | All years |
Not every vehicle of these model years is included. Enter your VIN at nhtsa.gov/recalls ↗ or ask a dealer.
Frequently asked questions
What is recall 21V-421?
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.
How is recall 21V-421 fixed?
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.
Is the recall repair free?
Yes. Safety recall repairs are free at authorized dealers. Check whether your vehicle is included with its VIN at nhtsa.gov/recalls.