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 Advisor can run a check., and an Advisor can run a check.

    See also:

    Electrical System Overload
    The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the ci ...

    Sun Visors
    Pull the visor toward you, or move to the side to help reduce glare. On vehicles with a lighted vanity mirror, lift the attached cover to use. ...

    Listening to a DVD
    If your vehicle has the Rear Seat Entertainment (RSE) system and a DVD is playing, the DVD symbol displays indicating that the DVD is available and can be listened to through your vehicle’s spea ...