Electronic Throttle Control (ETC)
WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
When the speed control system is activated, the vehicle speed can be maintained between 48 km/h (30 mph) and maximum vehicle speed without pressing the accelerator pedal. The speed control does not work at speeds below 48 km/h (30 mph).