System Outline: Notes
WARNING: This page is about a different car, the 2002 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
The cruise control system allows the driver to control the vehicle speed at a constant speed, such as on a highway, without depressing the accelerator pedal. By operating the switch, the engine throttle valve is automatically adjusted to control the vehicle speed at a constant speed.