The problem
General Motors, LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado Medium Duty 4500HD, 5500HD, and 6500HD vehicles. These vehicles were remedied under NHTSA Recall 25V390 with a brake jumper wire harness that was assembled without protective tape. A wiring harness that is missing protective tape can allow the wires to become damaged.
The risk
Damaged brake jumper wires can result in power brake assist failure, increasing the risk of a crash.
The fix
Dealers will remove the installed wire harness, apply protective tape, and reinstall the wire harness, free of charge. Owner notification letters are planned to be mailed December 22, 2025. Owners may contact GM customer assistance number at 1-866-467-9700. GM's number for this recall is N252531990. Vehicles in this recall were previously repaired under 25V390 and will need to have the new remedy completed. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov beginning November 6, 2025.
Recall details
| NHTSA campaign | 25V-768 (25V768000) |
|---|---|
| Manufacturer number | N252531990 |
| Manufacturer | General Motors, LLC |
| Component | Service brakes, hydraulic › Power assist |
| Report date | November 6, 2025 |
| Owners notified | December 3, 2025 |
| Vehicles affected | 891 |
| Initiated by | Manufacturer |
Vehicles covered
- 2019 Chevrolet Silverado 4500
- 2020 Chevrolet Silverado 4500
- 2019 Chevrolet Silverado 5500
- 2020 Chevrolet Silverado 5500
- 2019 Chevrolet Silverado 6500
Plus 1 other model/year combinations not covered on this site.
Owner complaints about the brakes
Frequently asked questions
Is the recall 25V-768 repair free?
Yes. Chevrolet dealers will fix the problem at no cost: Dealers will remove the installed wire harness, apply protective tape, and reinstall the wire harness, free of charge. Owner notification letters are planned to be mailed December 22, 2025. Owners may contact GM customer assistance number at 1-866-467-9700.
How do I know if my car is included?
Not every vehicle of the listed model years is affected — the recall covers 891 vehicles built in a certain window. Check your 17-character VIN with our VIN recall check or at nhtsa.gov/recalls.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.