The defect
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 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.
NHTSA's own wording · initiated by MFR
Vehicles covered
Components: AIR BAGS:SRS MALFUNCTION WARNING LAMP/LIGHT | ELECTRICAL SYSTEM:SOFTWARE
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Buick Envision | 2021 | 23 | 2 |
| Cadillac CT4 | 2021 | 7 | 4 |
| Cadillac CT5 | 2021 | 30 | 4 |
| Cadillac Escalade | 2021 | 78 | 9 |
| Cadillac Escalade ESV | 2021 | 74 | 10 |
| Chevrolet Corvette | 2021 | 13 | 2 |
| Chevrolet Suburban | 2021 | 200 | 12 |
| Chevrolet Tahoe | 2021 | 460 | 16 |
| GMC Yukon | 2021 | 341 | 13 |
| GMC Yukon XL | 2021 | 229 | 12 |
Other air bags recalls in 2021
65 of the 988 recall campaigns reported to NHTSA in 2021 concerned the air bags; General Motors, LLC filed 186 campaigns in all.
| 21V980000 16 Dec 2021 | Ford Motor Company |
| 21V925000 24 Nov 2021 | Chrysler (FCA US, LLC) |
| 21V923000 24 Nov 2021 | Ford Motor Company |
| 21V892000 17 Nov 2021 | Volkswagen Group of America, Inc. |
| 21V874000 10 Nov 2021 | Volkswagen Group of America, Inc. |
| 21V873000 10 Nov 2021 | Chrysler (FCA US, LLC) |
| 21V868000 9 Nov 2021 | Tesla, Inc. |
| 21V860000 5 Nov 2021 | Mercedes-Benz USA, LLC |
NHTSA recalls (public domain) · all recalls of 2021