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:

    Securing the Child within the Child Restraint
    WARNING! A child can be seriously injured or killed in a crash if the child is not properly secured in the child restraint. Secure the child properly following the instructions that came wi ...

    Call Waiting
    Call waiting must be supported on the Bluetooth phone and enabled by the wireless service carrier to work. Accepting a Call Turn the Menu knob to “Answer” and press SELECT to accept the ...

    Inadvertent Power Battery Saver
    This feature is designed to protect your vehicle’s battery against drainage from the interior lamps, or garage door opener. When the ignition is turned off, the power to these features will au ...