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:

    Windshield Wiper/Washer
    Windshield Wiper/Washer The windshield wiper lever is on the right side of the steering column. With the ignition in ACC/ ACCESSORY or ON/RUN, move the windshield wiper lever to select the ...

    Courtesy Transportation Program (U.S. and Canada)
    To enhance your ownership experience, we and our participating dealers are proud to offer Courtesy Transportation, a customer support program for vehicles with the Bumper-to-Bumper (Base War ...

    DIC Buttons
    The buttons are the trip/fuel, vehicle information, customization, and set/reset buttons. The button functions are detailed in the following pages. (Trip/Fuel): Press this button to display ...