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:

    Window Messages
    OPEN, THEN CLOSE DRIVER WINDOW This message is displayed when the window needs to be reprogrammed. If the vehicle's battery has been recharged or disconnected, you will need to reprogram each front ...

    Exterior Lamps Off Reminder
    A warning chime sounds if the driver door is opened while the ignition is off and the exterior lamps are on. ...

    Control Buttons (Radio with CD)
    The buttons used to control the CD player are: CD: Press to select the CD player. or : Press to select tracks or to rewind or fast forward within a track. INFO (Information): Press to display a ...