2006 Lexus IS 250 User Guide - Page 140
2006 Lexus IS 250 Manual
Page 140 highlights
2-4. Using other driving systems Dynamic radar cruise control (if equipped) Dynamic radar cruise control supplements conventional cruise control with a vehicle-to-vehicle distance control. In the vehicle-to-vehicle distance control mode, the vehicle automatically accelerates or decelerates in order to maintain a set following distance from vehicles ahead. n Select cruise mode Selecting vehicle-to-vehicle distance control mode Turn the ON-OFF button ON. Push the button once more to deactivate. Selecting conventional constant speed control mode Turn the ON-OFF button ON. Push the button once more to deactivate. Vehicle-to-vehicle distance control mode is always reset when the engine switch is switched to IG-ON mode. Switch to constant speed control mode. (push and hold for approximately one second) 124