2005 Lexus LS 430 Owners Manual - Page 389

STARTING AND DRIVING D The approach warning may not turn on even if the vehicle drives closer to the vehicle ahead in the following conditions: D Your vehicle and the vehicle ahead are cruising at almost the same speed. D The vehicle ahead is cruising at a faster speed than yours. (The distance between the vehicles will become longer.) D Pay special attention to the very slow vehicle at the end of the line in heavy traffic or at the tollgate. D Immediately after the speed setting D The accelerator pedal is depressed or immediately after the release of the accelerator pedal " 1 Millimeter wave grille cover 2 Millimeter wave radar sensor The millimeter wave radar sensor is used for vehicle−to−vehicle distance control cruising. When the millimeter wave radar sensor is disabled for some reason, the warning message appears on the multi−information display. For details, see "Vehicle−to−vehicle distance control mode failure warning" on page 353. (g) Millimeter wave radar sensor (Vehicles with dynamic radar cruise control) 31L359a 350