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. Genuine eucalyptus wood and aluminum trim are used in the interior.
Eight-way power front seats include four-way power lumbar adjustment, and a memory feature is optional. A leather-wrapped heated steering wheel is also offered. Trunk space totals 13.8 cubic feet.
Options include a Bose Studio Surround Sound system with 15 speakers and 300-watt output. An optional in-dash DVD/CD changer can play DVD audio discs as well as MP3 programs. A DVD-based navigation system is available. GM's OnStar communication system includes automatic crash notification.
See also:
Head Restraint Removal and Reinstallation
The rear outboard head restraints can be removed if they interfere with the
proper installation of the child restraint. The headrest in the rear center
seating position is not removable and should b ...
Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher.
If the octane rating is less than 87, an audible knocking noise, commonly
referred to as spark knock, might be heard when d ...
Engine Cooling System Messages
A/C OFF DUE TO HIGH ENGINE TEMP
This message displays when the engine coolant becomes hotter than the normal
operating temperature. To avoid added strain on a hot engine, the air
conditioning com ...






