See also:

Security
OnStar provides services like Stolen Vehicle Assistance, Remote Ignition Block, and Roadside Assistance, if the vehicle is equipped with these services. OnStar can unlock the vehicle doors remotely, ...

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 ...

Starting the Engine
Place the transmission in the proper gear. If the vehicle has the keyless access system, the keyless access transmitter must be authenticated in order for the ignition control knob to turn. ...