The Century sedan remains mostly unchanged for this model year. New standard features include a tire inflation monitor and traction control, which includes a deactivation switch. Additional new features include a Concert Sound III system that comes equipped with an amplifier and a diversity antenna. Also new are the memory locks which allow you to program them to open or close when you move the transmission in and out of park. Standard features include a keyless remote entry system, automatic-on headlights and power windows. Available options include the Astroroof and steering wheel radio controls. Also available is the OnStar communications system which provides additional assistance such as emergency services and navigational and travel support.