2005 Lexus RX 330 Owners Manual - Page 460

STARTING AND DRIVING (j) Approach warning 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 become closer to the vehicle ahead of you and the display will flash and beep. (k) Laser radar sensor CAUTION D If the display flashes and beeps, you must depress the brake pedal to slow down to avoid a collision or maintain sufficient vehicle−to−vehicle distance. D In the following conditions, the approach warning may not turn on even if the vehicle drives closer to the vehicle ahead, and an accident may occur: Your vehicle and the vehicle ahead are cruising at almost the same speed. The vehicle ahead is cruising at a faster speed than yours. (The distance between the vehicles will become longer.) The vehicle ahead is at a stop or driving very slowly. Pay special attention to a very slow vehicle at the end of the line in heavy traffic or at a tollgate. The speed has just been set. The accelerator pedal is depressed or has just been released. This product is a class I laser product complied with 21 C.F.R part 1040.10. and 1040. 11. The laser radar sensor is used for vehicle−to−vehicle distance control cruising. If dirt is on the sensor glass, the dynamic laser cruise control function is automatically cancelled and a warning code appears on the display. (See "(l) Vehicle−to−vehicle distance control mode failure warning" on page 430.) However, if the glass sensor is covered with icicle or any substance, dirt may not be detected. Before using the vehicle−to−vehicle distance control mode, make sure the laser radar sensor glass is clean. 429