174 4-5 Driving Auxiliary Functions
● There is dirt, ponding or mist on the sensor.
● The sensor is covered by snow or is frozen.
● The sensor is covered by any means.
● The vehicle is obviously rolled or excessively overloaded.
● The vehicle is on a bumpy road, slope, macadam pavement or grass
land.
● The sensor has been repainted.
● The surroundings of the vehicle are very noisy because there is
vehicle trumpet, sound of motorcycle engines, air brake sound of large
vehicles and other supersonic noises.
● There is another vehicle equipped with parking assist system nearby.
● The vehicle is installed with towing rings.
● The bumper or the sensor has been impacted strongly.
● The vehicle is approaching a high or zigzag kerb.
● The vehicle is operated under sun exposure or in severely cold
weather.
● An inferior suspension not from the original manufacturer has been
installed.
■ In addition to the above-mentioned circumstances, it may be impossible for
the sensor to correctly judge the actual distance between vehicle and
obstacle due to shape of the obstacle.
■ The shape of an obstacle may obstruct the detection on it by the sensor.
The following obstacles should be noticed particularly:
● Electric wires, fences, ropes, etc.
● Cotton, accumulated snow and other materials that can absorb radio
wave.
● Objects with sharp edges and corners.
● Low obstacles.
● High obstacles, the upper part of which extends toward your vehicle.
● Any object under the bumpers.
● Any object getting closer to the vehicle.