GM has released a Service Update through the National Highway Traffic Safety Administration (NHTSA) for the 2020-2022 Chevy Bolt EV and Chevy Bolt EUV. Service Update N232421261 addresses a condition ...
The problem: Affected vehicles may exhibit inaccurate speedometer readings and when diagnosed, exhibit trouble codes P0717, P0721, P0722. This may be due to faulty input and output speed sensors, ...