Diagnostics

OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring System. If a diagnostics check is needed between e-mails, push OnStar Additional Information , and an Advisor can run a check.

    See also:

    Radio Messages
    CAL ERR (Calibration Error): The audio system has been calibrated for your vehicle from the factory. If CAL ERR displays it means that the radio has not been configured properly for your vehicle a ...

    Ending a Call
    Press to end a call. ...

    Buick Regal in the Market
    The base Regal will do a lot to bring new people into Buick showrooms, and it could even steal from Acura and Lexus folks who are turned off by those brands' styling (Acura) or aging models (Lexus ...