- Component
- SERVICE BRAKES, HYDRAULIC:POWER ASSIST
- 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.
- Risk
- Damaged brake jumper wires can result in power brake assist failure, increasing the risk of a crash.
- Remedy
- 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.
What this recall means for you
Some 2019-2020 Chevrolet medium-duty trucks were built with a brake jumper wire harness that lacks protective tape. Over time, the unprotected wires can become damaged. This can cause the power brake assist to fail, which makes the vehicle harder to stop and raises the risk of a crash.
This recall covers vehicles that were previously repaired under NHTSA Recall 25V390. Those vehicles will need the new remedy as well. Owner notification letters are planned to be mailed December 22, 2025. GM's recall number is N252531990, and you can call GM customer assistance at 1-866-467-9700.
An authorized dealer will remove the wire harness, apply protective tape, and reinstall it at no cost to you. Check your vehicle identification number (VIN) for open recalls on NHTSA.gov, where VINs for this recall became searchable beginning November 6, 2025.
Official recall notice
Affected vehicles
| Chevrolet Silverado 4500 | 20192020 |
|---|---|
| Chevrolet Silverado 5500 | 20192020 |
| Chevrolet Silverado 6500 | 20192020 |