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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    If Steam Is Coming from the Engine Compartment
    WARNING Steam from an overheated engine can burn you badly, even if you just open the hood. Stay away from the engine if you see or hear steam coming from it. Just turn it off and get everyone awa ...

    Selecting a Station
    Seek Tuning If the radio station is not known: Briefly press or . The radio will search for the next receivable station. If the radio does not find a station, it switches automatically to a ...

    Interior
    Five occupants get to enjoy soft all-leather seats. Offerings include heated and ventilated seating and a heated steering wheel. The STS features genuine eucalyptus wood and aluminum trim. Eight ...