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:

    Conditions in Which Remote Start Will Not Work
    The remote vehicle start feature will not operate if: ○ The key is in the ignition. ○ The hood or doors are not closed. ○ The hazard warning flashers are on. ○ There is an ...

    Fuel Gauge
    Metric English When the ignition is on, the fuel gauge shows how much fuel is left in the tank. An arrow in the fuel gauge indicates the side of the vehicle the fuel door is on. The gauge will ...

    Climate Control Systems (with Air Conditioning)
    With this system the heating, cooling, and ventilation can be controlled. A. Fan Control B. Temperature Control C. Air Delivery Mode Control D. Air Conditioning E. Outside Air F. Recirculation ...