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Home >> Lexus >> 2021 >> LS 500 Base, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> Monitor System - Service Information (1 Of 2) >> ULTRASONIC SENSOR (for Rear) >> Removal [10/2023 - ] >> Procedure

Removal [10/2023 - ]: Procedure

  1. PRECAUTION (w/ Hands Free Power Trunk Lid) 
    NOTE:

    After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal.

    Refer to PRECAUTION [10/2023 - ]

  2. REMOVE LUGGAGE COMPARTMENT MAT SUB-ASSEMBLY (w/ Hands Free Power Trunk Lid) 

    Refer to PROCEDURE - Step 25

  3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL (w/ Hands Free Power Trunk Lid) 

    Refer to PROCEDURE - Step 4

  4. REMOVE REAR BUMPER ASSEMBLY 

    Refer to PROCEDURE - Step 6

  5. REMOVE NO. 3 LUGGAGE ROOM WIRE 

    Refer to PROCEDURE - Step 2

  6. REMOVE REAR SIDE ULTRASONIC SENSOR (w/ Advanced Park) 
    1. Detach the claw and remove the rear side ultrasonic sensor.
      GTY967609Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Before removing the sensor, make sure to mark the sensor and rear bumper assembly so that each sensor can be returned to its original position.

  7. REMOVE REAR SIDE ULTRASONIC SENSOR RETAINER (w/ Advanced Park) 

    HINT: 

    • Perform the following procedure only when replacement of a rear side ultrasonic sensor retainer is necessary.
    • When removing the rear side ultrasonic sensor retainer, if the double-sided tape is difficult to remove, heat the adhesive of the rear side ultrasonic sensor retainer and rear bumper assembly using a heat light.
    1. Heat the rear bumper assembly and rear side ultrasonic sensor retainer using a heat light.
      WARNING:
      • Do not touch the heat light and heated parts.
      • Touching the heat light may result in burns.
      • Touching heated parts for a long time may result in burns.
      GTY835518Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Heated Part
      *b Heat Light

      Standard

      Item Temperature
      Rear Bumper Assembly 20 to 30°C (68 to 86°F)
      Rear Side Ultrasonic Sensor Retainer
    2. Remove the rear side ultrasonic sensor retainer.
      GTY966387Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE ULTRASONIC SENSOR CLIP 
    1. Detach the claw and remove ultrasonic sensor clip.
      GTY966452Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A w/ Advanced Park - -
  9. REMOVE REAR CORNER ULTRASONIC SENSOR 
    1. Detach the claw and remove the rear corner ultrasonic sensor.
      NOTE:

      Before removing the sensor, make sure to mark the sensor and rear bumper assembly so that each sensor can be returned to its original position.

      GTY967605Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE REAR CORNER ULTRASONIC SENSOR RETAINER 

    HINT: 

    When removing the rear corner ultrasonic sensor retainer, heat the rear bumper assembly and rear corner ultrasonic sensor retainer using a heat light.

    1. Heat the rear bumper assembly and rear corner ultrasonic sensor retainer using a heat light.
      WARNING:
      • Do not touch the heat light and heated parts.
      • Touching the heat light may result in burns.
      • Touching heated parts for a long time may result in burns.
      GTY835518Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Heated Part
      *b Heat Light

      Standard

      Item Temperature
      Rear Bumper Assembly 20 to 30°C (68 to 86°F)
      Rear Corner Ultrasonic Sensor Retainer
    2. Remove the rear corner ultrasonic sensor retainer.
      GTY966389Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE REAR CENTER ULTRASONIC SENSOR 
    1. Detach the claw and remove the rear center ultrasonic sensor.
      NOTE:

      Before removing the sensor, make sure to mark the sensor and rear bumper assembly so that each sensor can be returned to its original position.

      GTY967602Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE REAR CENTER ULTRASONIC SENSOR RETAINER 

    HINT: 

    When removing the rear center ultrasonic sensor retainer, heat the rear bumper assembly and rear center ultrasonic sensor retainer using a heat light.

    1. Heat the rear bumper assembly and rear corner ultrasonic sensor retainer using a heat light.
      WARNING:
      • Do not touch the heat light and heated parts.
      • Touching the heat light may result in burns.
      • Touching heated parts for a long time may result in burns.
      GTY835518Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Heated Part
      *b Heat Light

      Standard

      Item Temperature
      Rear Bumper Assembly 20 to 30°C (68 to 86°F)
      Rear Center Ultrasonic Sensor Retainer
    2. Remove the rear center ultrasonic sensor retainer.
      GTY966388Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE REAR ULTRASONIC SENSOR CLIP 

    HINT: 

    • Use the same procedure for the other rear ultrasonic sensor clip.
    • When removing the rear ultrasonic sensor clip, heat the rear bumper assembly and rear ultrasonic sensor clip using a heat light.
    1. Heat the rear bumper assembly and rear ultrasonic sensor clip using a heat light.
      WARNING:
      • Do not touch the heat light and heated parts.
      • Touching the heat light may result in burns.
      • Touching heated parts for a long time may result in burns.
      GTY835518Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Heated Part
      *b Heat Light

      Standard

      Item Temperature
      Rear Bumper Assembly 20 to 30°C (68 to 86°F)
      Rear Ultrasonic Sensor Clip
    2. Remove the rear ultrasonic sensor clip.
      GTY965881Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A w/ Hands Free Power Trunk Lid *B w/ Advanced Park
  14. REMOVE ULTRASONIC SENSOR CUSHION SET 

    HINT: 

    Only perform this procedure when removing and installing the ultrasonic sensor cushion set.

    1. Remove the ultrasonic sensor cushion set as shown in the illustration.
      GTY1085144Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction - -
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