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:

    If Steam Is Coming from the Engine Compartment
    See Overheated Engine Protection Operating Mode for information on driving to a safe place in an emergency. ...

    OnStar®
    If the vehicle is equipped with an active OnStar system, that system may also record data in crash or near crash-like situations. The OnStar Terms and Conditions provides information on data collectio ...

    Curve Tips
    Take curves at a reasonable speed. Reduce speed before entering a curve, while the front wheels are straight. Adjust speed so you can drive through the curve. Maintain a reasonable, steady s ...