2006 Lexus GS 300 Owners Manual - Page 432

STARTING AND DRIVING (f) Approach warning D The approach warning may not turn on even if the vehicle drives closer to the vehicle ahead in the following conditions: ♦ Your vehicle and the vehicle ahead are cruising at almost the same speed. G31018 ♦ The vehicle ahead is cruising at a faster speed than yours. (The distance between the vehicles will become longer.) ♦ Pay special attention to the very slow vehicle at the end of the line in heavy traffic or at the tollgate. ♦ Immediately after the speed setting. ♦ The accelerator pedal is depressed or immediately after the release of the accelerator pedal. CAUTION While you are cruising in the vehicle−to−vehicle distance control mode, if the vehicle ahead decelerates abruptly or if another vehicle cuts in ahead of you, inadequate braking will make your vehicle closer to the vehicle ahead of you and the multi−information display flashes and beeps. The driver must depress the brake pedal to slow down, ensuring collision avoidance or that sufficient vehicle−to−vehicle distance is maintained. 408