Unable to Connect to OnStar Message

If there is limited cellular coverage or the cellular network has reached maximum capacity, this message may come on. Push call again or try again after driving a to try the call again or try again after driving a few miles into another cellular area.

    See also:

    Starting the Engine Using Remote Start
    To start the engine using the remote start feature: 1. Aim the transmitter at the vehicle and press and release on the transmitter. 2. Press and hold for at least four seconds or until the ...

    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 Servic ...

    AM
    The range for most AM stations is greater than for FM, especially at night. The longer range can cause station frequencies to interfere with each other. For better radio reception, most AM r ...