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:

    READY TO LEARN ELECTRONIC KEY # X
    If the vehicle has the keyless access system, this message displays while matching new transmitters to the vehicle. See the keyless access information for Remote Keyless Entry (RKE) System ...

    Key and Lock Messages
    NO REMOTE DETECTED This message displays when trying to start the vehicle if an RKE transmitter is not detected. The transmitter battery may be weak. See “Starting the Vehicle with a Low Trans ...

    Roadside Service
    U.S.: 1-800-224-1400 Canada: 1-800-882-1112 TTY Users (U.S. only): 1-888-889-2438 Mexico: 01-800-466-0805 As the owner of a new Cadillac, you are automatically enrolled in the Roadside Service ...