Reactivation for Subsequent Owners

Push speak to an Advisor as soon as and follow the prompts to speak to an Advisor as soon as possible after acquiring the vehicle.

The Advisor will update vehicle records and will explain the OnStar service offers and options available.

    See also:

    Manual Transmission Fluid
    It is not necessary to check the manual transmission fluid level. A transmission fluid leak is the only reason for fluid loss. If a leak occurs, take the vehicle to your dealer service department and ...

    Power Lumbar
    On vehicles with power lumbar, the control is located on the outboard side of the front seats. For vehicles with a two-way lumbar control, press the control top or bottom to increase or decreas ...

    RDS Messages
    ALERT!: Alert warns of local or national emergencies. When an alert announcement comes on the current radio station, ALERT! displays. You will hear the announcement, even if the volume is low or a ...