Use cautionVehicle recall · NHTSA · Published June 11, 2025
Chevrolet Silverado 4500 (2020) Brake Recall: Risk of Power Brake Failure
GM recalls 2020 Chevrolet Silverado 4500HD vehicles with damaged brake jumper wires that could cause power brake assist failure. Owners must have a dealer fix the harness by December 22, 2025.
GM is recalling 2020 Chevrolet Silverado 4500HD trucks that had brake jumper wires without protective tape. This can cause power brake assist failure, increasing crash risk. Affected vehicles were previously repaired under recall 25V390 and need a new fix. Read more at govinfonow.com/recall/79335-chevrolet-silverado-4500-2020-brake-recall-risk-of-power-brake.
“Chevrolet Silverado 4500 (2020) Brake Recall: Risk of Power Brake Failure.” GovInfoNow, updated August 10, 2026. https://govinfonow.com/recall/79335-chevrolet-silverado-4500-2020-brake-recall-risk-of-power-brake. Based on NHTSA recall #25V768000 (https://www.nhtsa.gov/recalls?nhtsaId=25V768000).
General Motors LLC is recalling certain 2019-2020 Chevrolet Silverado Medium Duty vehicles due to damaged brake jumper wires that can cause power brake assist failure, according to the National Highway Traffic Safety Administration (NHTSA) on June 11, 2025. Dealers will repair the wire harness free of charge.
How to tell if you have it
Chevrolet Silverado 4500HD, 2019-2020
Chevrolet Silverado 5500HD, 2019-2020
Chevrolet Silverado 6500HD, 2019-2020
What to do
Dealers will remove the installed wire harness, apply protective tape, and reinstall the wire harness, free of charge. Owners may contact GM customer assistance at 1-866-467-9700.
The hazard
Damaged brake jumper wires can result in power brake assist failure, increasing the risk of a crash. The recall addresses vehicles previously remedied under NHTSA Recall 25V390 with a brake jumper wire harness assembled without protective tape.
Context
GovInfoNow's records show General Motors LLC has 414 other recalls on file since February 11, 2011. Recent similar recalls include the Chevrolet Silverado 2020 power train recall from October 14, 2026, and the Cadillac Lyriq 2024 rearview camera malfunction recall from the same date. Other recent recalls of similar products include the Mack Pioneer and Anthem brake system failure risk (April 23, 2026), the Ford 2025 Transit brake failure risk (February 17, 2026), and the Ford 2025 Escape stability control risk (November 14, 2025).
How to tell if you have this one
Check if your 2020 Chevrolet Silverado 4500HD has been repaired under NHTSA recall 25V390. The recall involves vehicles with VINs searchable on NHTSA.gov starting November 6, 2025.
Brand
Chevrolet
Category
Vehicle
Based on the official NHTSA remedy
What to do — step by step
Contact Dealer for Fix
Dealers will remove the brake jumper wire harness, apply protective tape, and reinstall it free of charge by December 22, 2025.
December 22, 2025
Check NHTSA Status
You can check if your vehicle is affected by searching VINs on NHTSA.gov starting November 6, 2025.
November 6, 2025
Official remedy
What NHTSA says to do
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.
Take action
Contact Chevrolet
We’ve drafted a message you can send Chevrolet to request your refund or repair — edit it as you like.
Subject: Recall 25V768000 — Chevrolet Silverado 4500 (2020) Brake Recall: Risk of Power Brake Failure
Hello,
I own a Chevrolet Silverado 4500 (2020) Brake Recall: Risk of Power Brake Failure that is covered by recall 25V768000 from Chevrolet.
The official recall notice states: 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.
I’m writing to arrange the remedy described in the recall (a refund, repair, or replacement as applicable). Could you please tell me the next steps to resolve this?
Thank you.
The facts (hazard, remedy, dates, manufacturer) are pulled from the official NHTSA recall record. The plain-language summary and step-by-step checklist are written by GovInfoNow to make the official notice easier to act on — they don’t replace it.
Plain-language summary written by qwen3:4b on August 10, 2026, from the official record above. Not reviewed by a person — if it conflicts with the NHTSA notice, the notice is correct. Report an error on this page.
GovInfoNow is an independent service and is not a government agency. We republish official NHTSA recall data; we don’t issue, amend or administer recalls.