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-way power front seats include four-way power lumbar adjustment, and a memory feature is optional. Trunk space totals 13.8 cubic feet.

Options include Bose 5.1 Studio Surround Sound and a DVD/CD changer that can play DVD audio discs as well as MP3 CDs. A DVD-based navigation system is available. General Motors' OnStar communication system includes automatic crash notification.

    See also:

    Vehicle Load Limits
    It is very important to know how much weight the vehicle can carry. This weight is called the vehicle capacity weight and includes the weight of all occupants, cargo and all nonfactory—installed opt ...

    Returning the Seat to the Sitting Position
    To return the seat to the sitting position from the tumbled position: 1. Pull the seat down until it latches to the floor. The seatback cannot be raised if the seat is not latched to the floor. ...

    Ultrasonic Parking Assist
    If available, Ultrasonic Rear Parking Assist (URPA) system uses sensors on the rear bumper to assist with parking and avoiding objects while in R (Reverse). It operates at speeds less than 8 ...