2011 Lexus IS 350 Owners Manual - Page 176

2-4. Using other driving systems n Sensor detection information l Certain vehicle conditions and the surrounding environment may affect the ability of the sensor to correctly detect obstacles. Particular instances where this may occur are listed below. There is dirt, snow or ice on the sensor. The sensor is frozen. The sensor is covered in any way. The vehicle is leaning considerably to one side. On an extremely bumpy road, on an incline, on gravel, or on grass. 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. • There is another vehicle equipped with parking assist sensors in the vicinity. • The sensor is coated with a sheet of spray or heavy rain. • The vehicle is equipped with a fender pole or wireless antenna. • Towing eyelets are installed. • The bumper or sensor receives a strong impact. • The vehicle is approaching a tall or curved curb. • In harsh sunlight or intense cold weather. In addition to the examples above, there are instances in which, because of their shapes, signs and other objects may be judged by the sensor to be closer than they are. l The shape of the obstacle may prevent the sensor from detecting it. Pay particu- 2 When driving lar attention to the following obstacles Wires, fences, ropes etc. Cotton, snow and other materials that absorb radio waves Sharply-angled objects Low obstacles Tall obstacles with upper sections projecting outwards in the direction of your vehicle n When the display flashes and a message is displayed →P. 470 183