2005 Lexus LS 430 Owners Manual - Page 361

STARTING AND DRIVING 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. Especially in cold weather, a malfunction warning screen may appear on the display due to frozen sensors. If the "Clean Park Sonar" appears on the display, be sure to clean the sensor. If the "Clean Park Sonar" appears despite no mud, ice or snowflakes on the sensor, the sensor might have malfunctioned. Have your vehicle checked by your Lexus dealer. In the following conditions, the detection range may be affected: D When you stop your vehicle in extreme hot or cold weather. D Foreign matter such as snowflakes or mud gets on the sensor. 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: 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. 322