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Chevrolet Silverado medium duty brake sensor leak can cause fire

NHTSA campaign 25V390000 · Reported 2025-06-12 · General Motors, LLC

critical How serious is it? About this label

Serious — a fire can start while driving or parked, so park the truck outdoors and away from buildings until the repair is done.

⚠ Park outside, away from buildings — fire risk. See all such recalls.

What's wrong, in plain English

A sensor that watches brake fluid pressure can leak fluid into the brake pressure switch next to it. The fluid can cause an electrical short that overheats the wiring, and that can start a fire — while you are driving or while the truck is just sitting parked. GM says park the truck outside and away from buildings until it is fixed. Dealers replace the wire harness for the switch. Trucks repaired under the earlier recall need this new fix too.

What you should do

1. Look up your VIN at nhtsa.gov/recalls to confirm your truck is included.
2. Park outside, away from structures, until it is repaired.
3. Contact your Chevrolet dealer or GM at 1-866-467-9700 (recall N242482680) for the free wire harness replacement — even if your truck was already fixed under recall 23V266.

Affected vehicles (9)

Who to contact

Chevrolet — official Chevrolet recall lookup

Customer service: 1-800-222-1020

Any franchised dealer for the brand can do the repair. Phone numbers are taken from manufacturer sites and recent NHTSA notices; if one has changed, the number in your own recall letter is the one to use.

The bigger picture

Official notice

Component
SERVICE BRAKES, HYDRAULIC:BRAKE FLUID LOW WARNING:SWITCH/SENSOR/FLOAT
Summary
General Motors (GM) is recalling certain 2019-2024 Chevrolet Silverado Medium Duty 4500HD, 5500HD, and 6500HD vehicles. The brake pressure sensor assembly may leak brake fluid into the brake pressure switch and cause a short circuit.
Safety risk
An electrical short in the brake pressure switch can overheat the circuit and increase the risk of a fire while driving or parked.
Remedy
Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the brake pressure switch wire harness, free of charge. Owner notification letters were mailed September 11, 2025. Owners may contact GM customer assistance number at 1-866-467-9700. GM's number for this recall is N242482680. Vehicles in this recall that were previously repaired under 23V266 will need to have the new remedy completed.

Verify your specific vehicle by VIN at nhtsa.gov. Recall repairs are free of charge by law.