Ultrasonic Sensors

The ultrasonic sensors include a function for detecting abnormalities in the sensor, soiling of the sensor’s front surface, and informing the driver. If a message appears on the screen that can be addressed, follow the directions of the message.

When any of the following conditions is met, the ultrasonic sensors may not be able to detect target objects, and each system may not operate normally.

• Target object is thin such as wire, rope, or poles.

• Target object absorbs waves easily such as cotton or snow.

• Target object has an angular shape.

• Target object is tall and wide at the upper part.

• Target object height is low.

• There are multiple target objects.

• Target objects are too close to the sensors.

• Ice, snow, or mud is adhering to the sensor area.

• Heavy rainfall or pressurized water is applied to the sensor area.

• The sensor areas are frozen.

• You cover the sensor with your hand.

• The area around the sensor has received a strong impact.

• The vehicle is excessively tilted.

• Under extremely hot or cold weather.

• Approached by an object that generates ultrasonic waves, such as the horn of another vehicle, the engine noise of a motorcycle, the air brake noise of a large vehicle, or the sensor of another vehicle.

• A commercially-available fender pole or an antenna for a radio transmitter is installed to the vehicle.

• The vehicle is moving towards a tall or square curbstone, or a steep grade.

• The vehicle is moving towards an uneven wall or stairs.

• The vehicle is driven in a place with low ceilings.

• The vehicle is driven on bumpy roads, inclines, gravel roads, dense grass, or grating.

The ultrasonic sensor does not detect target objects directly beneath the bumper. Even if target objects which are located at a position lower than an ultrasonic sensor have been detected, the ultrasonic sensor may suddenly stop detecting as the vehicle approaches the target object.