Transferring Service

Push eligibility information. The Advisor to request account transfer eligibility information. The Advisor can assist in canceling or removing account information. If OnStar receives information that vehicle ownership has changed, OnStar may send a voice message to the vehicle, requesting updated account information.

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    Engine Heater
    The engine coolant heater, if available, can help in cold weather conditions at or below −18°C (0°F) for easier starting and better fuel economy during engine warm-up. Plug in the coolant hea ...

    Variable Effort Steering
    Some vehicles have a steering system that varies the amount of effort required to steer the vehicle in relation to the speed of the vehicle. The amount of steering effort required is less at ...

    Playing a CD or MP3 CD (Radio with CD)
    Press the CD button if there is a disc in the player; it begins playing. Information about the disc and current track is shown on the display depending on the data stored. Selecting a CD Track Us ...