Recall 21V758 covers 3,241 2021-2022 Chevrolet Silverado and GMC Sierra 2500/3500 trucks for BPMV fire risk. Park outside. Free repair at a franchised Chevrolet dealer.
Water in the BPMV can cause an electrical short circuit and increase the risk of fire. Watch for a check engine light or reduced power mode, and park outside and away from structures until the repair is complete. Repair is free at any franchised Chevrolet dealer.
Chevrolet is recalling 3,241 2021-2022 Silverado 2500, Silverado 3500, Sierra 2500, and Sierra 3500 trucks because loose brake pressure modulator valve bolts can let water into the electronic brake control module. Water in that assembly can trigger an electrical short and raise the risk of fire, so owners should park outside and away from structures until a Chevrolet dealer completes the free repair.
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What's wrong?
The electronic brake control module in these 2021-2022 Chevrolet Silverado 2500, Silverado 3500, Sierra 2500, and Sierra 3500 trucks is part of the brake pressure modulator valve assembly. The module helps manage the power-assisted hydraulic brake system, while the modulator valve controls brake pressure at the wheels. The assembly depends on sealed joints so water stays out of the electronics.
On the affected trucks, the electronic brake control module was replaced during vehicle assembly. During that offline repair, the bolts that fasten the module inside the brake pressure modulator valve assembly were not tightened enough to seal the parts together. Rainwater can enter through that gap, reach the electronics, and damage the module. GM traced the problem to temporary production process changes during assembly.
A driver can see a check engine light before the problem shows up. The truck can also enter reduced power mode, which limits engine power so the vehicle does not respond normally.
Who's affected?
Covers Chevrolet Silverado 2500 and 3500 plus GMC Sierra 2500 and 3500 across the 2021 and 2022 model years, all tied to the same electronic brake control module.
| 2022 Chevrolet Silverado 3500 | hydraulic brake system |
|---|---|
| 2022 GMC Sierra 2500 | hydraulic brake system |
| 2021 Chevrolet Silverado 3500 | hydraulic brake system |
| 2021 GMC Sierra 3500 | hydraulic brake system |
| 2022 GMC Sierra 3500 | hydraulic brake system |
| 2021 GMC Sierra 2500 | hydraulic brake system |
| 2021 Chevrolet Silverado 2500 | hydraulic brake system |
| 2022 Chevrolet Silverado 2500 | hydraulic brake system |
| Units affected | 3,241 |
| Field incidents | NHTSA has logged 2 field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific pickup truck is included.
What's the safety risk?
Water in the BPMV can cause an electrical short circuit and increase the risk of fire. Watch for a check engine light or reduced power mode, and park outside and away from structures until the repair is complete. Repair is free at any franchised Chevrolet dealer.
What should I do?
- Check your VIN to confirm your 2021-2022 Chevrolet Silverado 3500, Sierra 2500, Sierra 3500, or Silverado 2500 is included in this recall.
- Park outside and away from other structures until the recall repair is complete.
- Contact a franchised Chevrolet dealer to schedule the free BPMV assembly replacement that fixes the water-intrusion short-circuit risk.
- Bring the recall notice if Chevrolet has mailed one. If not, reference recall number 21V758 when you call.
What happens at the repair
Until the repair is complete, park outside and away from other structures. At the dealer, a Chevrolet technician replaces the brake pressure modulator valve assembly. That assembly is part of the brake control system, and the replacement addresses the sealing risk from improperly tightened assembly bolts. Parts and labor are covered under the recall. Repairs already paid are handled through the vehicle warranty, not through a separate reimbursement program, because the included vehicles are under warranty. Ask the service desk how warranty coverage applies to prior brake control repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| September 29, 2021 | NHTSA published the recall |
|---|---|
| September 29, 2021 | Dealer notification began |
| September 29, 2021 | Dealer notification ended |
| October 20, 2021 | Owner notification mailed |
| November 15, 2021 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| November 15, 2021 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 21V758?
Recall 21V758 covers 3,241 2021-2022 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 vehicles. NHTSA campaign 21V758 says loose BPMV assembly bolts can let water in, cause an electrical short circuit, and increase fire risk. Dealers will replace the BPMV assembly for free.
What should I do if my 2021-2022 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, or Sierra 3500 is on this recall?
Check your VIN to confirm your specific truck is included in recall 21V758. If it is, park outside and away from structures until the BPMV assembly is replaced. Call a franchised Chevrolet or GMC dealer and reference GM recall number N212349181.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and GM says dealers will replace the BPMV assembly free of charge. Use a franchised Chevrolet or GMC dealer, even if you bought the truck used.
What is the safety risk?
The safety risk is fire. NHTSA campaign 21V758 says water inside the brake pressure modulator valve can cause an electrical short circuit. Until the repair is complete, park the truck outside and away from other structures.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/21V758000 |
|---|---|
| Chevrolet customer service | 1-800-222-1020 |
| NHTSA recall # | 21V758 |
| NHTSA recall # (full) | 21V758000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Misc. Document (PDF)
- Download Quarterly Report (PDF)
- Download Recall Report (PDF)
- Download Recall Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →