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:

    Compact Spare Tire
    WARNING Driving with more than one compact spare tire at a time could result in loss of braking and handling. This could lead to a crash and you or others could be injured. Use only one compact spare ...

    Cooling System
    2.4L L4 Engine A. Engine Cooling Fan (Out of View) B. Engine Coolant Surge Tank and Pressure Cap 3.0L V6 Engine A. Engine Cooling Fans (Out of View) B. Engine Coolant Surge Tank and Pressure ...

    Home Page
    The infotainment system displays a home page that makes accessing many of the features an easy process. Back: If on page two of the Home Page, press Back to return to page one of the Home Page. I ...