TOYOTA 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 (FL Sensor, FR Sensor) Long 600 +/- 60 to 450 +/- 50 (23.6 +/- 2.36 to 17.7 +/- 2.00) 200 200
      Middle 450 +/- 50 to 350 +/- 40 (17.7 +/- 2.00 to 13.8 +/- 1.57) 100 100
      Short 350 +/- 40 or less (13.8 +/- 1.57 or less) Continuous Sound -
      Rear Corner (RL Sensor, RR Sensor) Long 600 +/- 60 to 450 +/- 50 (23.6 +/- 2.36 to 17.7 +/- 2.00) 200 200
      Middle 450 +/- 50 to 350 +/- 40 (17.7 +/- 2.00 to 13.8 +/- 1.57) 100 100
      Short 350 +/- 40 or less (13.8 +/- 1.57 or less) Continuous Sound 0
      Rear Center (RLC Sensor, RRC Sensor) Longest 1500 +/- 150 to 600 +/- 60 (59.1 +/- 5.91 to 23.6 +/- 2.36) 200 500
      Long 600 +/- 60 to 450 +/- 50 (23.6 +/- 2.36 to 17.7 +/- 2.00) 200 200
      Middle 450 +/- 50 to 350 +/- 40 (17.7 +/- 2.00 to 13.8 +/- 1.57) 100 100
      Short 350 +/- 40 or less (13.8 +/- 1.57 or less) Continuous Sound -

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

      A01IDVTE02

    3. The ultrasonic sensors are divided into 2 groups: a front section group (front corners) 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 Rear Section (Rear Corner and Rear Center)
      Short Middle Long Longest Not Detected
      Front Section (Front Corner) Short Timing 1 Timing 2 Timing 2 Timing 2 Continuous Sound
      Middle Timing 2 100/100 100/100 100/100 100/100
      Long Timing 2 100/100 200/200 200/200 200/200
      Not Detected Continuous Sound 100/100 200/200 200/500 None

      Figure 1. Timing 1

      A01IDBFE02

      Figure 2. Timing 2

      A01IDE3E02

    4. Clearance Warning Buzzer Mute Function


      1. When a sensor detects an obstacle with the shift lever not in P or R, the buzzer can be temporarily muted using the buzzer mute button in the multi-display of the navigation receiver assembly*1 or radio and display receiver assembly*2.


        • *1: Models with navigation system

        • *2: Models with display audio system

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

        Figure 3. Models with Navigation Receiver Assembly

        A01IDKYC01
        *a Buzzer Mute Button *b The illustration shown is an example only. The illustration may differ from the actual vehicle screen.