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:

    Instrument Panel Illumination Control
    Instrument Panel Illumination Control The brightness of the instrument panel lighting and steering wheel controls can be adjusted. (Instrument Panel Illumination): Move and hold the thumb ...

    What Will You See After an Airbag Inflates?
    After a frontal airbag inflates, it quickly deflates, so quickly that some people may not even realize an airbag inflated. Roof-mounted rollover airbags may still be at least partially inflated mi ...

    OnStar® Steering Wheel Controls
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