GM Has Stopped C8 Corvette Sales Due To Brake-by-Wire Sensor Issue

If you were planning on picking yourself up a C8, you may want to pause and reconsider. This week, General Motors issued a stop-sale on the 2020 model year due to an issue with the brake-by-wire system. It’s actually an issue that affects more than just the Corvette.

The Corvette Action Center reports the order stated to stop delivery of certain 2020-2021 model year Buick GX, 2020 model year Cadillac CT4, CT5 and XT4, Chevy Corvette, and 2021 Chevy Trailblazer. GM has notified the NHTSA of an upcoming safety recall (A202307260) for the above vehicles. So while a stop-sale on new and used vehicles being sold has been issued, a recall on already-sold vehicles will be coming soon as well.

The issue is materials used in the manufacturing process of the sensor connection may have been contaminated during production and cause a communication breakdown between the sensor and the brake boost system.

You may notice a warning light and message in the instrument panel and vehicle speed may be limited if the vehicle’s electronic brake boost assist is lost. As a result, extra pedal force will be required to stop or slow the vehicle which could increase the risk of crashes.

When repair and replacement parts are available, current owners can bring their vehicles to a dealer who will replace the electronic brake boost module.