Chevy Corvette has brake boost sensor contamination issue, GM confirms

Marco Green
September 28, 2020

A defect in the electronic brake boost system affects certain 2020 Chevrolet Corvette, 2021 Chevrolet Trailblazer, 2020-2021 Buick Encore GX, and 2020 Cadillac CT4, CT5, and XT4 vehicles.

The Chevrolet Corvette C8 just can't catch a break - literally.

GM has issued a Stop Sale Order to halt the deliveries of the 2020 Stingray over an issue with contamination in the electronic brake boost system sensor which can cause a communication breakdown between the sensor and brake boost system.

The Corvette's brake-by-wire system measures brake force pressure and tells the brake booster how much pressure to apply to the brakes. Luckily it seems like this issue doesn't affect the entire braking system, just the booster, so if it does start to malfunction, drivers can still stop the auto, though "extra pedal force will be required to slow and stop the vehicle, increasing the risk of a crash", according to the bulletin.

On these models, dealers will replace the electronic brake boost module at no cost to owners, but not until the remedy and the appropriate parts are ready.

Owners of the vehicles listed above should watch for a notice from General Motors or the NHTSA in the near future, check with GM here, or contact their local dealers. GM's recall number is A202307260.

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