2011 Lexus IS 350 Navigation Manual - Page 269

INTUITIVE PARKING ASSIST - Detection range of the sensors - Sensor detection information D Certain vehicle conditions and the surrounding environment may affect the ability of a sensor to correctly detect an obstacle. Particular instances where this may occur are listed below. D There is dirt, snow or ice on a sensor. D A sensor is frozen. D A sensor is covered in any way. D The vehicle is leaning considerably to one side. D On an extremely bumpy road, on an incline, on gravel, or on grass D The vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines, air brakes of large vehicles, or other loud noises producing ultrasonic waves. D There is another vehicle equipped with parking assist sensors in the vicinity. D A sensor is coated with a sheet of spray or heavy rain. D The vehicle is equipped with a fender pole or radio antenna. D Towing eyelets are installed. D A bumper or sensor receives a strong impact. D The vehicle is approaching a tall or right−angled curb. D In harsh sunlight or intense cold weather. D A non−genuine Lexus suspension (lowered suspension, etc.) is installed. In addition to the examples above, there are instances in which, because of their shapes, signs and other objects may be judged by a sensor to be closer than they are. Approximately 1.6 ft. (50 cm) Approximately 4.9 ft. (150 cm) 3 Approximately 1.6 ft. (50 cm) The diagram shows the detection range of the sensors. Note that the sensors cannot detect obstacles that are extremely close to the vehicle. The range of the sensors may change depending on the shape of the object etc. 2 1 293