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:

    Engine Coolant Temperature Gage
    This gage shows the engine coolant temperature. If the gage pointer moves into the red area, the engine coolant has overheated. If you have been operating your vehicle under normal driving c ...

    Safety Belt Reminders
    Driver Safety Belt Reminder Light There is a driver safety belt reminder light on the instrument panel cluster. When the engine is started this light begins to flash and a chime comes on for sever ...

    Transmission Messages
    SERVICE TRANSMISSION This message displays if there is a problem with the transmission. See your dealer. SHIFT TO PARK This message displays when the transmission needs to be shifted to P (Park). ...