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:

    SERVICE SUSPENSION SYSTEM
    This message displays when there is a problem with the Magnetic Ride Control system. See Magnetic Ride Control for more information. Have the vehicle serviced by your dealer. ...

    Safety Belts
    Refer to the following sections for important information on how to use safety belts properly. Safety Belts  . How to Wear Safety Belts Properly  . Lap-Shoulder Belt  . Lo ...

    Power Steering Fluid
    See Engine Compartment Overview for reservoir location. When to Check Power Steering Fluid It is not necessary to regularly check power steering fluid unless a leak is suspected in the syst ...