OnStar®

If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview  .

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    BATTERY VOLTS LOW
    This message displays when the electrical system is charging less than 10 volts or the battery has been drained. If this message appears immediately after starting the engine, it is possibl ...

    Design details
    Dramatic planes highlight the Cadillac CTS wagon's design, including a V-shaped motif carried throughout the vehicle and carefully integrated intersections of exterior surfaces. The elements coale ...

    License Plate Lamp
    To replace one of these bulbs: 1. Open the liftgate. See Liftgate for more information. Passenger Side Shown, Driver Side Similar 2. Push the left end of the lamp assembly towards the ri ...