2003 Lexus LS 430 Owners Manual - Page 261

STARTING AND DRIVING Lexus park assist system operating hints CAUTION Do not install an accessory or the like within the sensor detection range. Doing so may cause the Lexus park assist system to malfunction, resulting in an accident. 31L290 NOTICE D The sensors do not detect an obstacle just under the bumper. A short object, thin stake or the like will be detected once but might not be detected as your vehicle gets very close to such an object. D If an obstacle is very close to your vehicle, it might not be detected. D If a sensor is subjected to a strong impact, it will not operate properly. The Lexus park assist system may not work properly in the following cases: "Sensor detection range 1 About 1 m (3 ft.) 2 About 50 cm (1.5 ft.) The sensor detection range is limited around the bumper. Be sure to confirm a safe distance around your vehicle and drive slowly. If more than one obstacle is detected in the same direction, the indicators for the obstacle nearest to the vehicle will turn on. D When icicles, snowflakes or mud gets on the sensors. If removed, the system will work properly. D When the sensor is frozen. If deiced, the system will work properly. D When the sensor is covered with something. If removed, the system will work properly. 247