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322 4-5. Using the driving support systems • The sensors may be able to only detect objects near the front and rear bumpers. • Depending on the shape of the object and other factors, the detection distance may shorten, or detection may be impos- sible. • There will be a short delay between object detection and display. Even at low speeds, there is a possibility that the object will come within the sensor’s detection areas before the display is shown and the warning beep sounds. • It might be difficult to hear the buzzer due to the volume of the audio system or air flow noise of the air conditioning system. • It may be difficult to hear the buzzer if buzzers for other systems are sounding. ■ Objects which the system may not be properly detected The shape of the object may prevent the sensor from detecting it. Pay particular attention to the following objects: ● Wires, fences, ropes, etc. ● Cotton, snow and other materials that absorb sound waves ● Sharply-angled objects ● Low objects ● Tall objects with upper sections project- ing outwards in the direction of your vehi- cle People may not be detected if they are wearing certain types of clothing. ■ Situations in which the system may not operate properly Certain vehicle conditions and the sur- rounding environment may affect the ability of a sensor to correctly detect objects. Par- ticular instances where this may occur are listed below. ● There is dirt, snow, water drops or ice on a sensor. (Cleaning the sensors will resolve this problem.) ● A sensor is frozen. (Thawing the area will resolve this problem.) In especially cold weather, if a sensor is frozen the sensor display may be dis- played abnormally, or objects, such as a wall, may not be detected. ● When a sensor or the area around a sen- sor is extremely hot or cold. ● On an extremely bumpy road, on an incline, on gravel, or on grass. ● When vehicle horns, vehicle detectors, motorcycle engines, air brakes of large vehicles, the clearance sonar of other vehicles or other devices which produce ultrasonic waves are near the vehicle ● A sensor is coated with a sheet of spray or heavy rain. ● If objects draw too close to the sensor. ● When a pedestrian is wearing clothing that does not reflect ultrasonic waves (ex. skirts with gathers or frills). ● When objects that are not perpendicular to the ground, not perpendicular to the vehicle traveling direction, uneven, or waving are in the detection range. ● Strong wind is blowing ● When driving in inclement weather such as fog, snow or a sandstorm ● When an object that cannot be detected is between the vehicle and a detected object ● If an object such as a vehicle, motorcycle, bicycle or pedestrian cuts in front of the vehicle or runs out from the side of the vehicle ● If the orientation of a sensor has been changed due to a collision or other impact ● When equipment that may obstruct a sensor is installed, such as a towing eye- let, bumper protector (an additional trim strip, etc.), bicycle carrier, or snow plow ● If the front of the vehicle is raised or low- ered due to the carried load |