LEXUS PARKING ASSIST-SENSOR SYSTEM


  1. OUTLINE


    1. The LEXUS parking assist-sensor system uses No. 1 ultrasonic sensors to detect obstacles at the front, in front corners or rear of the vehicle.

    2. The LEXUS parking assist-sensor system informs the driver of the approximate distance between the No. 1 ultrasonic sensors and any obstacles as well as their positions by displaying them on the multi-information display in the combination meter assembly and multi-media module display* and by sounding the No. 1 clearance warning buzzer.

      Tech Tips

      *: Models with 8-speaker surround sound system or HDD navigation system

  2. MAJOR DIFFERENCE


    1. The new models have been modified from the previous models as shown below:


      1. RHD models have been added.

      2. An 8-speaker surround sound system has been added.

      3. The distance of the No. 1 ultrasonic sensor detection area and the buzzer sound pattern have been changed.

  3. PRECAUTION


    1. The detection function of the LEXUS parking assist-sensor system may not operate properly in the following conditions:


      1. When foreign matter such as ice, snow or mud gets on the No. 1 ultrasonic sensors. If the sensor is cleaned, the system will return to normal.

      2. When a No. 1 ultrasonic sensor is frozen. If the No. 1 ultrasonic sensor temperature rises, the system will return to normal.

      3. When the No. 1 ultrasonic sensor is covered with something. If the object is removed, the system will return to normal.

    2. Especially in cold weather, a malfunction warning may occur (the buzzer may sound) due to a frozen No. 1 ultrasonic sensor. If the malfunction warning occurs, be sure to check the No. 1 ultrasonic sensors. If there is no mud, ice or snow on the No. 1 ultrasonic sensors, a No. 1 ultrasonic sensor may be malfunctioning.

    3. In the following conditions, the detection range may be affected:


      1. When foreign matter such as snow or mud is attached to a No. 1 ultrasonic sensor.

      2. When the vehicle is operated under the hot sun or in a freezing climate.

    4. The system may improperly detect obstacles in the following conditions:


      1. When the vehicle is being driven on bumpy road, gravel road, or on grass.

      2. When ultrasonic waves are received from the horn or parking sonar system of another vehicle, a motorcycle engine, or the air brakes of a large vehicle.

      3. When there is a downpour, or water is splashing on the vehicle.

      4. When the vehicle posture tilts significantly.

      5. When an antenna for a wireless transmitter is mounted on the vehicle.

      6. When the No. 1 ultrasonic sensors are covered with foreign matter such as ice, snow or mud.

      7. When the vehicle travels alongside a tall curb or a square curb.

      8. When other vehicles with sonar are near.

      9. When a towing hitch is mounted on the vehicle.

      10. When the bumper is damaged.

    5. There are cases in which the objects listed below cannot be detected:


      1. Thin objects such as wire or rope.

      2. Objects with surfaces that are too small to reflect ultrasonic waves such as wire gauze or a fence.

      3. Objects that absorb ultrasonic waves such as cotton or snow.

      4. Objects that have sharp edges.

      5. Objects that are short.

      6. Objects that are tall and protrude toward the vehicle above the detection range of the sensors.

    6. Other notices


      1. Objects directly underneath the bumpers cannot be detected. Some objects located lower than the No. 1 ultrasonic sensors, or thin objects, may not be detected as the vehicle approaches the objects.

      2. An object might not be detected if the vehicle is too close.

      3. The No. 1 ultrasonic sensors might not detect obstacles properly if they are exposed to strong shocks such as when being struck or dropped.