NHTSA recall 21V758000
NHTSA advises: park outside, away from buildings, until the repair is done.
A recall listed here may apply to a vehicle of this year, make and model. Only the manufacturer can say whether it applies to one vehicle: check the VIN with the official lookups.
| Published by | NHTSA (United States) |
|---|---|
| Campaign number | 21V758000 |
| Manufacturer's number | N212349181 |
| Manufacturer | General Motors, LLC |
| Reported | 2021-09-29 |
| Owners notified | 2021-10-20 |
| Component | SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE |
| Units potentially affected | 3241 |
| Part numbers | 85107550, 85107551 |
| Report | Annual report 3, for 2025 quarter 4 to 2026 quarter 3 |
|---|---|
| Filed with NHTSA | 2026-10-06 |
| Vehicles in the campaign | 3241 |
| Reported remedied | 3103 (95%) |
| Reported unreachable | 9 |
| Reported removed | 2 |
These are the manufacturer's totals for the whole campaign at the end of 2026 quarter 3, as filed with NHTSA. They do not say whether one vehicle has been remedied: check the VIN with the official lookups. The reports are from data as of 2026-10-19.
What is wrong
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.
What can happen
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.
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.
| 2021 CHEVROLET SILVERADO 2500 | Listed as a series or trim of this model. |
|---|---|
| 2022 CHEVROLET SILVERADO 2500 | Listed as a series or trim of this model. |
| 2021 CHEVROLET SILVERADO 3500 | Listed as a series or trim of this model. |
| 2022 CHEVROLET SILVERADO 3500 | Listed as a series or trim of this model. |
| 2021 GMC SIERRA 2500 | Listed as a series or trim of this model. |
| 2022 GMC SIERRA 2500 | Listed as a series or trim of this model. |
| 2021 GMC SIERRA 3500 | Listed as a series or trim of this model. |
| 2022 GMC SIERRA 3500 | Listed as a series or trim of this model. |
A vehicle with no link is not in this site's catalog, which covers cars, multipurpose vehicles and trucks by model year. The campaign is from data as of 2026-10-19.
Bulletins for the same vehicles and component
| 23-NA-201 | 2025-10-21. Service bulletin. This service bulletin advises the technician of a possible loose ground that may be causing customer concerns of Loss of Steering Assist and/or Loss of Brake Assist and Malfunction Indicator Lamp (MIL) Illuminated. |
|---|---|
| 25-NA-065 | 2025-04-24. Service bulletin. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis. |
| 21-NA-043 | 2025-02-12. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. |
| 25-NA-019 | 2025-02-11. Service bulletin. This bulletin advises the tech to check other areas that may need repair before replacing the wheel speed sensor. |
| 21-NA-155 | 2025-01-30. Service bulletin. This informational bulletin advises the technician to check for faults that may be caused by the trailer otherwise found by a possible faulty trailer connector. |
| 24-NA-073 | 2025-01-23. Service bulletin. This technical bulletin provides a procedure to inform drivers that under certain driving conditions such as hilly or mountainous roads accompanied with frequent braking, that the original equipment front brake pads may wear prematurely. |
| PIT5828D | 2025-01-20. Service bulletin. This Preliminary Information communication provides information to the technician about customers that may request the factory Integrated Trailer Brake Controller Regular Production Option Code (JL1) be installed on their Full-Size Pickup or SUV when the vehicle was not ordered with the option. Dealer should advise the customer it cannot be added to the vehicle. |
| PIT6134G | 2025-01-20. Service bulletin. This Preliminary information communicates an issue with premature brake pad life and engineering is working on release new pad lining material. |
| PIT6134F | 2025-01-03. Service bulletin. This Preliminary information communicates an issue with premature brake pad life and engineering is working on release new pad lining material. |
| 21-NA-043 | 2024-12-10. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer. |
A bulletin is the manufacturer's note to its dealers. It is not part of this recall.