GM Recalls Chevrolet's Biggest Boys For Brake Fire Risk
General Motors is recalling more than 62,000 Chevrolet Silverados in the U.S. due to a defect in the braking system that could increase the risk of a fire.
Key Points
- GM is recalling 62,468 Chevrolet Silverado trucks from model years 2019 to 2024 due to a fire risk caused by a faulty brake pressure sensor assembly.
- The defect, traced to an unauthorized chemical used in manufacturing, can cause brake fluid to leak and trigger an electrical short, potentially leading to underhood fires—even when the vehicle is off.
- The National Highway Traffic Safety Administration warns that while only 1% of the recalled trucks are expected to have the fault, GM will inspect and repair affected vehicles at no cost to owners.
According to documentation filed with the National Highway Traffic Safety Administration (NHTSA), the issue stems from a brake pressure sensor assembly that may allow brake fluid to leak, potentially leading to an electrical short. If brake fluid causes a short in the brake pressure switch and the associated fuse, the circuit can generate excessive heat that could result in a fire, even when the vehicle is off and possibly unattended.
The recall affects certain 2019–2024 Chevrolet Silverado Medium Duty 4500HD, 5500HD, and 6500HD trucks, though GM estimates that only about one percent of the vehicles involved actually contain the defect. This is the second recall related to this issue after GM first took action in April of 2023.
The root of the problem traces back to an unauthorized chemical used by one of GM's suppliers in the manufacturing of a rubber diaphragm integrated into the brake pressure sensor assembly. When exposed to brake fluid, this chemical can react, causing the diaphragm to degrade over time and compromise its ability to retain fluid. Once it begins leaking, the fluid can come into contact with electronic components, setting the stage for a short circuit.
GM says it is not aware of any injuries or property damage in connection with the defect, but it is coordinating with dealers to begin inspections and repairs.
Owners of affected vehicles will be contacted directly by GM. The automaker will offer inspections and necessary component replacements at no cost. In the meantime, owners are advised to park their vehicles outdoors and away from structures if they experience any warning signs, such as burning smells or illuminated dashboard alerts related to the braking system.
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An experienced automotive storyteller and accomplished photographer known for engaging and insightful content. Michael also brings a wealth of technical knowledge—he was part of the Ford GT program at Multimatic, oversaw a fleet of Audi TCR race cars, ziptied Lamborghini Super Trofeo cars back together, been over the wall during the Rolex 24, and worked in the intense world of IndyCar.
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