Recall 25V768 affects 891 2019-2020 Chevrolet Silverado 4500, 5500, and 6500 trucks for damaged brake jumper wires. Repair is free at any franchised Chevrolet dealer.
Chevrolet is recalling 891 2019-2020 Silverado 4500, Silverado 5500, and Silverado 6500 trucks because a brake jumper wire harness installed during an earlier recall was assembled without protective tape. Damaged wires can cause power brake assist failure and increase crash risk; Chevrolet dealers will complete the repair free of charge.
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What's wrong?
The brake jumper harness on the 2019-2020 Chevrolet Silverado 4500, Silverado 5500, and Silverado 6500 is a short wiring harness in the brake power-assist system. It keeps the brake system wiring connected and helps protect the individual wires from normal vibration, movement, and contact with nearby parts. The protective tape around the harness is part of that shielding.
On these trucks, the harness installed during the earlier 25V390 recall repair was built without the required protective tape. Without that tape, the wires are exposed to rubbing and chafing. Over time, the insulation on the wires can wear through, which can damage the brake system wiring.
If the wires are chafed or rubbed through, the truck can display a "service brake system" malfunction indicator lamp. That warning light is the sign owners are told to watch for before the harness damage affects the brake system.
Who's affected?
Covers three Silverado medium-duty truck classes from the 2019 and 2020 model years, all tied to the same brake jumper harness.
| 2019 Chevrolet Silverado 4500 | hydraulic brake system |
|---|---|
| 2019 Chevrolet Silverado 6500 | hydraulic brake system |
| 2019 Chevrolet Silverado 5500 | hydraulic brake system |
| 2020 Chevrolet Silverado 4500 | hydraulic brake system |
| 2020 Chevrolet Silverado 5500 | hydraulic brake system |
| 2020 Chevrolet Silverado 6500 | hydraulic brake system |
| Units affected | 891 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether your specific truck is included.
What's the safety risk?
Damaged brake jumper wires can cause power brake assist to fail, which increases the risk of a crash. If the harness wiring is chafed or rubbed through, the "service brake system" light can appear. Treat that light as a reason to slow down, avoid hard braking, and schedule service soon. Repair is free at any franchised Chevrolet dealer.
What should I do?
- Check your VIN to confirm your 2019-2020 Chevrolet Silverado 4500, Silverado 6500, or Silverado 5500 is included in this recall.
- Contact a franchised Chevrolet dealer to schedule the free wire-harness tape repair that protects the brake jumper wires and power brake assist.
- Tell the dealer the truck was previously repaired under 25V390 and needs the new 25V768 remedy completed.
- Bring the recall notice if Chevrolet mailed one, or reference recall number 25V768 when you call.
- Drive cautiously until the repair is complete. Leave extra following distance and allow more room to stop.
What happens at the repair
At the dealer, a Chevrolet technician removes the installed brake jumper wire harness, applies protective tape, and reinstalls the harness. Parts and labor are covered under the recall. This recall also covers vehicles already repaired under 25V390, because that earlier repair installed a harness without protective tape. Those vehicles still need this new remedy completed. Out-of-pocket repairs already paid are handled through the existing warranty, not through a separate reimbursement program, because all covered vehicles are under warranty. Ask the service desk how warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| November 6, 2025 | NHTSA published the recall |
|---|---|
| November 6, 2025 | Dealer notification began |
| November 6, 2025 | Dealer notification ended |
| November 6, 2025 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| December 3, 2025 | Owner notification mailed |
Frequently asked questions
What is recall 25V768?
Recall 25V768 covers 891 2019-2020 Chevrolet Silverado 4500, Silverado 5500, and Silverado 6500 vehicles previously repaired under recall 25V390. The brake jumper wire harness lacked protective tape, which can damage wires and cause power brake assist failure. Chevrolet dealers will correct the harness for free.
What should I do if my 2019-2020 Chevrolet Silverado 4500, Silverado 5500, or Silverado 6500 is on this recall?
Check your VIN to confirm your specific truck is included in recall 25V768. If it is, contact a franchised Chevrolet dealer and reference recall 25V768 or GM recall number N252531990. The dealer will remove the harness, add protective tape, reinstall it, and complete the repair for free.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and GM's remedy says dealers will remove the installed brake jumper wire harness, apply protective tape, and reinstall the harness free of charge at a franchised Chevrolet dealer.
What is the safety risk?
Damaged brake jumper wires can cause power brake assist failure, increasing crash risk. This recall does not include a do-not-drive instruction, but the repair still matters because power brake assist affects stopping effort. Confirm your VIN and schedule the free harness repair with a Chevrolet dealer.
When were owners notified about recall 25V768?
GM planned owner notification letters for December 22, 2025, and that date has passed. If you own one of these Silverado medium duty trucks and did not receive a letter, check your VIN and call Chevrolet customer assistance at 1-866-467-9700 or a franchised Chevrolet dealer.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/25V768000 |
|---|---|
| Chevrolet customer service | 1-866-467-9700 |
| NHTSA recall # | 25V768 |
| NHTSA recall # (full) | 25V768000 |
Source documents
-
Download Quarterly Report (PDF) - Download Owner Notification Letter (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 19, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →