2005 Lexus LS 430 Owners Manual - Page 415

STARTING AND DRIVING CAUTION To ensure that pre−collision safety system will function properly while driving, observe the following. Failure to follow these instructions could reduce the effectiveness of the pre−collision safety system in case of vehicle accident: D Always keep the millimeter wave radar sensor and grille cover clean. When cleaning, use a soft cloth and be careful not to damage the sensor and grille cover. D Avoid strong impacts around the millimeter wave radar sensor. An incorrect millimeter wave radar sensor alignment will result in system malfunction. A special device is required to adjust the millimeter wave radar sensor alignment. Be sure to have the sensor adjusted by your Lexus dealer. D Do not disassemble the millimeter wave radar sensor. D Do not affix a sticker (including a transparent sticker) or attach an accessory around the millimeter radar sensor or the grille cover. D Do not modify or paint the grille cover. When replacing the cover, be sure to use a genuine cover. Pre−collision seat belts (Front seat belts only) When the pre −collision sensor detects an object or vehicle with which your vehicle might collide and determines that a collision may be unavoidable, the seat belts are quickly drawn back by the retractors to enhance the effects of the seat belt pretensioners. The pre−collision seat belts also work as well when hard braking. The pre −collision seat belts will operate in the following conditions: D When the ignition switch is turned on. D When the vehicle speed is about 5 km/h (3 mph) or over. D When the approaching speed in regard to the object or the vehicle exceeds about 30 km/h (18 mph). D When the front seat occupants wear the seat belts. 376