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.

    See also:

    Engine Coolant Heater
    The engine coolant heater can provide easier starting and better fuel economy during engine warm-up in cold weather conditions at or below 0°F (−18°C). Vehicles with an engine coolant he ...

    Headlamps on Reminder
    If you leave the exterior lamp buttons for the headlamps or parking lamps on, remove the key from the ignition and open the driver’s door, you will hear a continuous warning chime. The chime w ...

    Speedometer
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