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.

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    Instrument Panel, Vinyl, and Other Plastic Surfaces
    Use a soft microfiber cloth dampened with water to remove dust and loose dirt. For a more thorough cleaning, use a soft microfiber cloth dampened with a mild soap solution. Notice: Soaking or sat ...

    Fuel Range
    Press the trip/fuel button until FUEL RANGE displays. This display shows the approximate number of remaining kilometers (km) or miles the vehicle can be driven without refueling. The display will show ...

    Rear Climate Control System (Rear Climate with Rear Seat Audio)
    A. Fan Control B. Air Delivery Mode Control C. Temperature Control For vehicles with the rear climate control system, the controls are located on the rear of the center console. Press the REAR b ...