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:

    Climate Controls
    A. Fan Control B. Temperature Control C. Air Delivery Mode Control D. Air Recirculation E. Air Conditioning F. Rear Window Defogger This system allows the driver and passenger to control t ...

    Steering, Suspension, and Chassis Components
    Visually inspect front and rear suspension and steering system for damaged, loose, or missing parts or signs of wear. Inspect power steering lines and hoses for proper hook-up, binding, leak ...

    Lap-Shoulder Belt
    All seating positions in the vehicle have a lap-shoulder except for the center front passenger position (if equipped), which has a lap belt. See Lap Belt for more information. The following instr ...