The defect
General Motors, LLC (GM) is recalling certain 2021-2022 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 vehicles with electronic brake control modules (EBCM) replaced during vehicle assembly. The bolts that attach the brake pressure modulator valve (BPMV) assembly may not be properly tightened, which could fail to seal the two sub-assemblies and allow water intrusion.
The risk
Water in the BPMV may cause an electrical short circuit and increase the risk of fire.
The remedy
Owners are advised to park outside and away from other structures until the recall repair is completed. Dealers will replace the BPMV assembly, free of charge. Owner notification letters were mailed on October 20, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N212349181.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Chevrolet Silverado 2500 | 2021, 2022 |
| Chevrolet Silverado 3500 | 2021, 2022 |
| GMC Sierra 2500 | 2021, 2022 |
| GMC Sierra 3500 | 2021, 2022 |
Components: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Chevrolet Silverado 2500 | 2021 | 88 | 6 |
| Chevrolet Silverado 2500 | 2022 | 97 | 3 |
| Chevrolet Silverado 3500 | 2021 | 41 | 5 |
| Chevrolet Silverado 3500 | 2022 | 27 | 3 |
| GMC Sierra 2500 | 2021 | 52 | 6 |
| GMC Sierra 2500 | 2022 | 44 | 3 |
| GMC Sierra 3500 | 2021 | 20 | 5 |
| GMC Sierra 3500 | 2022 | 32 | 3 |
Other service brakes, hydraulic recalls in 2021
58 of the 988 recall campaigns reported to NHTSA in 2021 concerned the service brakes, hydraulic; General Motors, LLC filed 186 campaigns in all.
| 21V974000 16 Dec 2021 | Arrow Manufacturing, Inc. |
| 21V940000 3 Dec 2021 | Zero Motorcycles Inc. |
| 21V937000 2 Dec 2021 | Hyundai Motor America |
| 21V933000 1 Dec 2021 | Daimler Vans USA, LLC |
| 21V936000 1 Dec 2021 | Kia Motors America |
| 21V922000 23 Nov 2021 | Ford Motor Company |
| 21V890000 17 Nov 2021 | Toyota Motor Engineering & Manufacturing |
| 21V853000 3 Nov 2021 | Volkswagen Group of America, Inc. |
NHTSA recalls (public domain) · all recalls of 2021