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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    Exterior
    Designed with a chiseled look, the four-door STS features what Cadillac says is a "faster profile" with "more rake" than the CTS. All told, it's considered "more sophistic ...

    Headlamp Washer
    For vehicles with headlamp washers they clear debris from the headlamp lenses. The headlamp washers are beneath the headlamps. Press the washer button at the end of the windshield wiper le ...

    Traction Control System (TCS)
    The vehicle has a Traction Control System (TCS) that limits wheel spin. On a front-wheel-drive vehicle, the system operates if it senses that one or both of the front wheels are spinning or beginn ...