Stop-Sale Order Issued for C8 Corvette Over Brake-by-Wire System
You may have to wait a bit longer for that brand new "Vette...
Earlier this week, GM issued a stop-sale order for the 2020 Corvettes. This was caused by a fault with the car's brake-by-wire system. The order affects a handful of other GM products as well, including the Chevy Trailblazer, Buick Encore, and a handful of Cadillacs.
A bulletin issued to GM dealers and obtained by Corvetteactioncenter.com explains as follows:
"Material used in a sensor connection in the electronic brake boost system in these vehicles may have been contaminated during the material supplier's production process. Contamination of this material may cause an interruption of communication between the sensor and the brake boost system under certain conditions. "
The C8 Corvette uses a brake-by-wire system that uses electronic sensors to relay how much pressure to apply to the brakes, versus a purely mechanical system. So it would be a pretty big problem if the pedal couldn't communicate with the brakes while you're driving. According to the bulletin, "extra pedal force will be required to slow and stop the vehicle, increasing the risk of a crash," should communication from the sensor in question be interrupted. The fix is to replace the electronic brake booster module, free of charge.
(Source: Road & Track)