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:

    Hood
    To open the hood: 1. Pull the interior hood release handle located to the left of the steering column below the instrument panel. 2. Go to the front of the vehicle and push the secondary ...

    Symbols
    The vehicle has components and labels that use symbols instead of text. Symbols are shown along with the text describing the operation or information relating to a specific component, control, message ...

    Parking Brake
    To set the parking brake, hold the regular brake pedal down with your foot and pull up on the parking brake lever located between the seats. If the ignition is on, the brake system warning light ...