Lexus IS250 · Service Manual BODY

REASSEMBLY

Removal / installation

CAUTION:
Wear protective gloves. Sharp areas on the seat adjuster may injure your hands.

HINT:
  1. Use the same procedures for the LH side and RH side.
  2. A bolt without a torque specification is shown in the standard bolt chart. (Click here)


1. INSTALL FRONT SEAT WIRE

2. INSTALL SEAT HEATER CONTROL SUB-ASSEMBLY (w/ Seat Heater System)

3. INSTALL SEAT POSITION SENSOR (for Driver Side)

  1. B105968E02
    Install the seat position sensor, but do not fully tighten it yet.

  1. Install a 1 mm (0.04 in.) feeler gauge between the slide rail and sensor.

    HINT:
    Make sure that the clearance between the seat position sensor and the slide rail is within 0.6 to 1.4 mm (0.023 to 0.055 in.).

    CAUTION:
    1. If the seat position sensor has been dropped, or there are any cracks or other defects in the case, bracket or connector, replace the seat position sensor with a new one.
    2. When installing the seat position sensor, make sure that the SRS wiring does not interfere with other parts and is not pinched between other parts.

  1. Hold down the top of the sensor and tighten the sensor using a T30 "torx" socket.

    Torque:
    8.0 N*m{ 82 kgf*cm , 71 in.*lbf }

  1. Remove the feeler gauge.

  1. Install the seat slide position sensor protector.

  1. Connect the wire harness connector.


4. INSTALL SEAT CLIMATE CONTROL BLOWER (w/ Climate Control Seat System)

5. INSTALL SEAT CUSHION CLIMATE CONTROL DUCT (w/ Climate Control Seat System)

6. INSTALL SEATBACK CLIMATE CONTROL BLOWER (w/ Climate Control Seat System)

  1. B105993
    Using a T30 ''torx'' socket, install the blower cover and blower to the seat frame with the 6 ''torx'' bolts.

  1. Connect the connector and attach the 3 clamps.


7. INSTALL LUMBAR SUPPORT ADJUSTER ASSEMBLY

  1. B126080
    Install the lumbar support adjuster with the 2 screws.

  1. Connect the connector.


8. INSTALL FRONT LOWER SEAT CUSHION SHIELD

9. INSTALL FRONT LOWER SEAT CUSHION SHIELD LH

10. INSTALL RECLINING ADJUSTER INSIDE COVER LH

11. INSTALL SEAT RECLINING ADJUSTER INSIDE COVER LH

12. INSTALL RECLINING ADJUSTER INSIDE COVER LH

13. INSTALL LOWER RECLINING ADJUSTER INSIDE COVER RH

14. INSTALL FRONT SEAT BACK HEATER ASSEMBLY (w/ Seat Heater System)

  1. B122754E01
    Using a tacker, install the front seatback heater to the end of the seat cover with the 7 tack pins.


15. INSTALL FRONT SEPARATE TYPE SEATBACK COVER

  1. B121656E01
    Using hog ring pliers, install the seatback cover to the seatback pad with new hog rings.


16. INSTALL FRONT SEPARATE TYPE SEATBACK ASSEMBLY (w/o Seatback Board)

  1. B126061
    Fully cover the airbag with the 2 seatback cover brackets and tighten the nut.

    Torque:
    5.5 N*m{ 56 kgf*cm , 49 in.*lbf }

    CAUTION:
    1. For vehicles with side airbags, the seatback cover must be securely installed. Otherwise, the side airbags may not deploy properly.
    2. Make sure that the strap is not twisted after installing the bracket.
    3. Install the bracket securely.

  1. B121657E01
    Using hog ring pliers, install the seatback cover (with pad) to the seat frame with new hog rings, and attach the hooks.

  1. B122095
    Install the seatback cover (with pad) to the seat frame. (w/o Seatback Board)


17. INSTALL FRONT SEPARATE TYPE SEATBACK ASSEMBLY (w/ Seatback Board)

  1. B126061
    Fully cover the airbag with the 2 seatback cover brackets and tighten the nut.

    Torque:
    5.5 N*m{ 56 kgf*cm , 49 in.*lbf }

    CAUTION:
    1. For vehicles with side airbags, the seatback cover must be securely installed. Otherwise, the side airbags may not deploy properly.
    2. Make sure that the strap is not twisted after installing the bracket.
    3. Install the bracket securely.

  1. B126711E01
    Using hog ring pliers, install the seatback cover (with pad) to the seat frame with new hog rings.

  1. B121657E01
    Using hog ring pliers, install the seatback cover (with pad) to the seat frame with new hog rings, and attach the hooks.

  1. B121647
    Install the front seatback cover and attach the hooks.


18. INSTALL FRONT SEATBACK BOARD SUB-ASSEMBLY (w/ Seatback Board)

19. INSTALL FRONT SEAT HEADREST SUPPORT

20. INSTALL FRONT SEAT HEADREST SUPPORT

21. INSTALL FRONT SEAT CUSHION HEATER ASSEMBLY (w/ Seat Heater System)

  1. B123723E01
    Using a tacker, install the front seat cushion heater to the end of the seat cover with the 28 tack pins.


22. INSTALL FRONT SEPARATE TYPE SEAT CUSHION COVER

  1. B105991E01
    Using hog ring pliers, install the seat cushion cover to the seat cushion pad with new hog rings.


23. INSTALL FRONT SEPARATE TYPE SEAT CUSHION ASSEMBLY LH

24. INSTALL FRONT POWER SEAT SWITCH (w/ Seat Position Memory System)

  1. B123747
    Connect the 2 connectors.

  1. Install the switch with the 3 screws.


25. INSTALL FRONT POWER SEAT SWITCH (w/o Seat Position Memory System)
  1. Connect the connector.

  1. Install the switch with the 3 screws.


26. INSTALL FRONT INNER SEAT CUSHION SHIELD

  1. B123745
    Attach the clip and 2 claws to install the cushion shield inner.

  1. Install the screw.


27. INSTALL LOWER INNER SEAT TRACK SPACER

  1. B123744
    Install the spacer to the front cushion shield with the 2 screws.


28. INSTALL LOWER OUTER SEAT TRACK SPACER
  1. Install the spacer to the front cushion shield with the 2 screws.


29. INSTALL FRONT POWER SEAT LUMBAR SWITCH

  1. B123743
    Install the switch to the front cushion shield with the 2 screws.


30. CONNECT INNER NO. 1 FRONT SEAT CUSHION SHIELD

  1. B123742
    Attach the claw and connect the No. 1 cushion shield inner to the front cushion shield.

  1. Install the 2 screws.


31. INSTALL NO. 1 FRONT SEAT CUSHION SHIELD WITH CUSHION SHIELD INNER
  1. Connect the connector to the lumbar front power seat switch.

  1. B123741
    Attach the claw and install the cushion shield with cushion shield inner.

  1. Install the 5 screws.

  1. B123740
    Install the 2 rubber bands of the front seatback board to the seat frame.

  1. Connect the connector to the No. 1 interior illumination light.


32. INSTALL RECLINING POWER SEAT SWITCH KNOB

33. INSTALL SLIDE AND VERTICAL POWER SEAT SWITCH KNOB

34. INSTALL FRONT SEAT INNER BELT ASSEMBLY

  1. B131287E01
    Install the front seat inner belt assembly with the nut.

    Torque:
    42 N*m{ 428 kgf*cm , 31 ft.*lbf }

    NOTICE:
    Do not allow the anchor part of the front seat inner belt assembly to overlap the protruding parts of the front seat adjuster.

  1. Connect the connector and attach the 4 clamps.

    B133005E01

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