Under the Hood

A 4.6-liter Northstar V-8 with variable valve timing produces 320 horsepower at 6,400 rpm and 310 pounds-feet of torque at 4,400 rpm. Premium fuel is recommended. The five-speed-automatic transmission incorporates Driver Shift Control.

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    Retrieve My Number
    1. Push . System responds: “OnStar ready.”. 2. Say “My Number.” System responds: “Your OnStar Hands-Free Calling number is.” ...

    Interior
    Like the previous Seville, five occupants fit inside the STS, which has soft all-leather seats. Heated and ventilated seating is an option. The headliner and pillars are covered in woven fabric. G ...

    Exterior Lighting
    The exterior lamps control is located on the instrument panel to the left of the steering wheel. : Turns off the automatic headlamps and Daytime Running Lamps (DRL). Turning the headlamp contr ...