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Home >> Lexus >> 2021 >> IS 350 RWD >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Exterior Panels / Trim - Service Information (2 Of 2) >> Rear Bumper >> Reassembly [10/2016 - 09/2020] >> Procedure

Reassembly [10/2016 - 09/2020]: Procedure

  1. INSTALL REAR BUMPER REINFORCEMENT SUB-ASSEMBLY 
    GTY614733Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Install the rear bumper reinforcement sub-assembly with the 8 bolts.

      Torque: 20 N.m (204 kgf/cm, 15 ft.lbf) 

  2. INSTALL REAR BUMPER ENERGY ABSORBER 
    1. Engage the 2 guides to install the rear bumper energy absorber.
      GTY614732Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL NO. 1 REAR BUMPER SIDE SUPPORT LH 
    1. Engage the guide and claw.
      GTY470190Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the 2 screws.
      GTY463801Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Install the No. 1 rear bumper side support LH with a new grommet.
      GTY463800Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSTALL NO. 1 REAR BUMPER SIDE SUPPORT RH 

    HINT: 

    Use the same procedure as for the LH side.

  5. INSTALL NO. 2 REAR BUMPER SIDE SUPPORT LH 
    1. Engage the 4 claws.
      GTY463977Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Engage the 3 clips to install the No. 2 rear bumper side support LH as shown in the illustration.
      GTY470236Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSTALL NO. 2 REAR BUMPER SIDE SUPPORT RH 

    HINT: 

    Use the same procedure as for the LH side.

  7. INSTALL REAR BUMPER UPPER RETAINER LH 

    Refer to PROCEDURE - Step 16

  8. INSTALL REAR BUMPER UPPER RETAINER RH 

    HINT: 

    Use the same procedure as for the LH side.

  9. INSTALL REAR COMBINATION LIGHT ASSEMBLY LH 

    Refer to PROCEDURE - Step 19

  10. INSTALL REAR COMBINATION LIGHT ASSEMBLY RH 

    HINT: 

    Use the same procedure as for the LH side.

  11. INSTALL REAR COMBINATION LIGHT COVER LH 

    Refer to PROCEDURE - Step 20

  12. INSTALL REAR COMBINATION LIGHT COVER RH 

    HINT: 

    Use the same procedure as for the LH side.

  13. INSTALL ULTRASONIC SENSOR CLIP (w/ Intuitive Parking Assist System) 
    1. Clean the rear bumper cover.
      1. Remove any remaining double-sided tape from the rear bumper cover.
      2. Wipe off any tape adhesive residue with cleaner.
    2. Using a brush or felt, apply primer or equivalent to the ultrasonic sensor clip installation area.
      GTY782912Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Primer
      NOTE:
      • Use a clean brush or felt.
      • Do not touch the rear bumper cover until the primer has dried.
    3. Peel off the release paper from 4 new ultrasonic sensor clips.
    4. Align the 4 ultrasonic sensor clips with the mark on the rear bumper cover and install it as shown in the illustration.
      GTY786710Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Line - -
      NOTE:
      • Ensure that the ultrasonic sensor clip is within the line.
      • The double-sided tape of a ultrasonic sensor clip will deteriorate if it is detached. Make sure to replace the ultrasonic sensor clip with a new one when reattachment is necessary.

      HINT: 

      Press the ultrasonic sensor clip with a force of 30 N (3.0 kgf) for 3 seconds to install the ultrasonic sensor clip firmly so that there is no clearance between the ultrasonic sensor clip and rear bumper cover.

  14. INSTALL NO. 1 ULTRASONIC SENSOR RETAINER (w/ Intuitive Parking Assist System) 

    Refer to PROCEDURE - Step 1

  15. INSTALL NO. 1 ULTRASONIC SENSOR (w/ Intuitive Parking Assist System) 

    Refer to PROCEDURE - Step 2

  16. INSTALL NO. 3 LUGGAGE ROOM WIRE (w/ Intuitive Parking Assist System) 
    1. Engage the 4 clamps.
      GTY801007Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the 4 connectors to install the No. 3 luggage room wire.
  17. INSTALL REAR BUMPER PIECE (for Standard) 
    1. Engage the hook.
      GTY626656Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Hook
    2. Engage the 4 claws to install the rear bumper piece.
  18. INSTALL REAR BUMPER PIECE (for Sport Package) 
    1. Engage the hook.
      GTY652354Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Hook
    2. Engage the guide and 2 claws to install the rear bumper piece.
  19. INSTALL REAR BUMPER CENTER EXTENSION SUB-ASSEMBLY 
    1. Engage the 7 guides and 8 claws.
      GTY614918Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the 5 clips.
      GTY670626Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Clip Screw
    3. Install the rear bumper center extension sub-assembly with the 2 screws.
  20. INSTALL REFLEX REFLECTOR ASSEMBLY LH 
    1. Engage the guide and claw.
      GTY614921Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the reflex reflector assembly LH with the screw.
      GTY673022Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. INSTALL REFLEX REFLECTOR ASSEMBLY RH 

    HINT: 

    Use the same procedure as for the LH side.

  22. INSTALL NO. 2 MOULDING TAPE (for Type A) 

    HINT: 

    Use the same procedure for the RH side and LH side.

    1. Clean the installation surface of the No. 2 moulding tape.
      1. Remove any remaining double-sided tape from the rear bumper cover.
        NOTE:
        • If there is any foreign matter on the rear bumper cover when the No. 2 moulding tape is installed, adhesion failure may occur.
        • Do not use a screwdriver or other tool to remove the double-sided tape as the rear bumper cover may be damaged, possibly leading to adhesion failure.
      2. Wipe off any tape adhesive residue with cleaner.
    2. Install a new No. 2 moulding tape.
      WARNING:
      • Do not touch the heat light, as doing so may cause in burns.
      • Touching heated parts for a long time may result in burns.

      HINT: 

      If the temperature of the No. 2 moulding tape or its installation surface on the rear bumper cover is below 15°C (59°F), adhesion failure may occur. Use a heat light to heat the No. 2 moulding tape and its installation surface on the rear bumper cover to the recommended temperature (15 to 40°C (59 to 104°F)).

      1. Remove the release paper from a new No. 2 moulding tape.

        HINT: 

        After removing the release paper, keep the exposed adhesive free from foreign matter.

      2. Install the No. 2 moulding tape to the rear bumper cover as shown in the illustration.
        GTY661965Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Line
        NOTE:

        If the No. 2 moulding tape has been removed, it must be replaced with a new one as it may be deformed or the strength of its adhesive may be deteriorated.

        HINT: 

        Make sure not to touch the exposed adhesive of the No. 2 moulding tape or the installation surface on the rear bumper cover.

      3. Using a squeegee, evenly press the No. 2 moulding tape to the rear bumper cover with a force of 29 N (3 kgf, 6.5 lbf) or more.

        HINT: 

        • Make sure that the corners of the No. 2 moulding tape are not damaged or peeling off.
        • After installing the No. 2 moulding tape, leave the rear bumper cover in an area with an ambient temperature of 15°C (59°F) or more for 30 minutes or more to allow the adhesive to set.
      4. Remove the protector sheet from the No. 2 moulding tape.
  23. INSTALL NO. 2 MOULDING TAPE (for Type B) 

    HINT: 

    Use the same procedure for the RH side and LH side.

    1. Clean the installation surface of the No. 2 moulding tape.
      1. Remove any remaining double-sided tape from the rear bumper cover.
        NOTE:
        • If there is any foreign matter on the rear bumper cover when the No. 2 moulding tape is installed, adhesion failure may occur.
        • Do not use a screwdriver or other tool to remove the double-sided tape as the rear bumper cover may be damaged, possibly leading to adhesion failure.
      2. Wipe off any tape adhesive residue with cleaner.
    2. Install a new No. 2 moulding tape.
      WARNING:
      • Do not touch the heat light, as doing so may cause in burns.
      • Touching heated parts for a long time may result in burns.

      HINT: 

      If the temperature of the No. 2 moulding tape or its installation surface on the rear bumper cover is below 15°C (59°F), adhesion failure may occur. Use a heat light to heat the No. 2 moulding tape and its installation surface on the rear bumper cover to the recommended temperature (15 to 40°C (59 to 104°F)).

      1. Remove the release paper from a new No. 2 moulding tape.

        HINT: 

        After removing the release paper, keep the exposed adhesive free from foreign matter.

      2. Install the No. 2 moulding tape to the rear bumper cover as shown in the illustration.
        GTY834817Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Line
        NOTE:

        If the No. 2 moulding tape has been removed, it must be replaced with a new one as it may be deformed or the strength of its adhesive may be deteriorated.

        HINT: 

        Make sure not to touch the exposed adhesive of the No. 2 moulding tape or the installation surface on the rear bumper cover.

      3. Using a squeegee, evenly press the No. 2 moulding tape to the rear bumper cover with a force of 29 N (3 kgf, 6.5 lbf) or more.

        HINT: 

        • Make sure that the corners of the No. 2 moulding tape are not damaged or peeling off.
        • After installing the No. 2 moulding tape, leave the rear bumper cover in an area with an ambient temperature of 15°C (59°F) or more for 30 minutes or more to allow the adhesive to set.
      4. Remove the protector sheet from the No. 2 moulding tape.
  24. INSTALL REAR BUMPER PAD 

    HINT: 

    Use the same procedure for the RH side and LH side.

    1. Wipe off any tape adhesive residue with cleaner.
    2. Remove the release paper from a new rear bumper pad.

      HINT: 

      After removing the release paper, keep the exposed adhesive free from foreign matter.

    3. Install the rear bumper pad as shown in the illustration.
      GTY668064Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Line

      HINT: 

      Stick the rear bumper pad on the line on the rear bumper assembly.

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