LEXUS PARKING ASSIST-SENSOR SYSTEM


  1. OPERATION


    1. Depending on the detection distance and the detection area, the sound pattern of the No. 1 clearance warning buzzer will vary.

      Detection Area

      Detection Distance

      (mm (in.))

      		 Buzzer Sound Pattern

      On

      (msec.)

      Off

      (msec.)
      Front Corner Long 600 +/- 60 to 450 +/- 50 (23.6 +/- 2.4 to 17.7 +/- 2.0) 200 200
      Middle 450 +/- 50 to 350 +/- 40 (17.7 +/- 2.0 to 13.8 +/- 1.6) 100 100
      Short 350 +/- 40 or less (13.8 +/- 1.6 or less) Continuous Sound 0
      Front Center Longest 1000 +/- 100 to 600 +/- 60 (39.4 +/- 3.94 to 23.6 +/- 2.4) 200 500
      Long 600 +/- 60 to 450 +/- 50 (23.6 +/- 2.4 to 17.7 +/- 2.0) 200 200
      Middle 450 +/- 50 to 350 +/- 40 (17.7 +/- 2.0 to 13.8 +/- 1.6) 100 100
      Short 350 +/- 40 or less (13.8 +/- 1.6 or less) Continuous Sound 0
      Rear Corner Long 600 +/- 60 to 450 +/- 50 (23.6 +/- 2.4 to 17.7 +/- 2.0) 200 200
      Middle 450 +/- 50 to 350 +/- 40 (17.7 +/- 2.0 to 13.8 +/- 1.6) 100 100
      Short 350 +/- 40 or less (13.8 +/- 1.6 or less) Continuous Sound 0
      Rear Center Longest 1500 +/- 150 to 600 +/- 60 (59.1 +/- 5.9 to 23.6 +/- 2.4) 200 500
      Long 600 +/- 60 to 450 +/- 50 (23.6 +/- 2.4 to 17.7 +/- 2.0) 200 200
      Middle 450 +/- 50 to 350 +/- 40 (17.7 +/- 2.0 to 13.8 +/- 1.6) 100 100
      Short 350 +/- 40 or less (13.8 +/- 1.6 or less) Continuous Sound 0

    2. When a sensor malfunction is detected or a sensor is frozen or dirty, the buzzer sounds 5 times according to the following timing:

      B004Z7XE06

    3. The ultrasonic sensors are divided into 2 groups: a front section group (front corners and front center) and a rear section group (rear corners and rear center). If multiple ultrasonic sensors detect obstructions at the same time, the No. 1 clearance warning buzzer sounds as follows, in accordance with the detection distance and detection area of each group:

      Buzzer Sound Pattern ON/OFF Time (msec.)
      Detection Distance Short (*B) Middle (*B) Long (*B) Longest (*B) Not detected
      Short (*A) Timing 1 Timing 2 Timing 2 Timing 2 Continuous Sound
      Middle (*A) Timing 2 100/100 100/100 100/100 100/100
      Long (*A) Timing 2 100/100 200/200 200/200 200/200
      Longest (*A) Timing 2 100/100 200/200 200/500 200/500
      Not detected Continuous Sound 100/100 200/200 200/500 None

      *A: Front section

      *B: Rear section

      B004Z1QE01

    4. Clearance Warning Buzzer Mute Function


      1. When a sensor detects an obstacle with the shift lever in a position other than P or R, the buzzer can be temporarily muted using the buzzer mute switch in the multi-display assembly.

      2. The mute function is canceled if the vehicle speed reaches a certain level.

        B004Z5EC01
        *A Models with 8 Inch Multi-display *B Models with 12.3 Inch Multi-display
        *a Buzzer Mute Switch *b The illustrations shown are example only. The illustrations may differ from the actual vehicle screens.