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Home >> Lexus >> 2008 >> GS 450h >> Repair and Diagnosis >> Body & Frame >> Seats >> Seat >> Front Seat Assembly >> Reassembly

Front Seat Assembly: Reassembly

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

HINT:

  1. INSTALL FRONT SEAT WIRE 
  2. INSTALL OCCUPANT CLASSIFICATION ECU (for Front Passenger Side) 
    1. Connect the ECU connector.
    2. Install the ECU with the 2 nuts.
      Fig 1: Locating Occupant Classification ECU Connector With Nuts
      G05820728Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL OCCUPANT CLASSIFICATION SENSOR (for Front Passenger Side) 
    1. Connect the sensor connector.
    2. Attach the 2 clips to install the sensor.
    3. Fig 2: Locating Occupant Classification Sensor Connector
      G05820729Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSTALL SEAT HEATER CONTROL SUB-ASSEMBLY (w/ Seat Heater System) 
    1. Connect the connector and attach the clamp.
  5. INSTALL SEAT POSITION AIRBAG SENSOR (for Driver Side) 
    1. Using a T30 "TORX" socket, temporarily install the seat position airbag sensor with the "TORX" bolt.
    2. 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 airbag sensor and the slide rail is within 0.6 to 1.4 mm (0.023 to 0.055 in.).

      Fig 3: Locating Seat Position Airbag Sensor With Bolt
      G05820730Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      CAUTION:
      • If the seat position airbag sensor has been dropped, or there are any cracks or other defects in the case, bracket or connector, replace the seat position airbag sensor with a new one.
      • When installing the seat position airbag sensor, make sure that the SRS wiring does not interfere with other parts and is not pinched between other parts.
    3. 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) 

    4. Remove the feeler gauge.
    5. Install the seat slide position sensor protector.
    6. Connect the wire harness connector.
  6. INSTALL FRONT SEAT HEADREST ADJUSTER SUB-ASSEMBLY (for Driver Side) 
    1. Install the headrest adjuster to the seat frame with the 2 bolts.
    2. Install the headrest lock release button.
      Fig 4: Locating Front Seat Headrest Adjuster Sub-Assembly Bolts
      G05820731Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Connect the cable to the front seat frame.
    4. Remove all the slack from the cable by adjusting the nut.
      Fig 5: Locating Cable To Front Seat Frame
      G05820732Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Clamp the cable to the front seat frame with the cable tie as shown in the illustration.
      Fig 6: Locating Clamp Cable To Front Seat Frame With Cable Tie
      G05820733Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Cut off the cable tie, as shown in the illustration.
      Fig 7: Cutting Off Cable Tie
      G05820734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSTALL SEAT CLIMATE CONTROL BLOWER (w/ Climate Control Seat System) 
    1. Install the blower and 3 bushes to the bracket with the 3 bolts.
    2. Install the blower with bracket and attach the claw. Then install the screw.
    3. Connect the connector.
      Fig 8: Installing Seat Climate Control Blower With Bolts
      G05820735Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. INSTALL SEAT CUSHION CLIMATE CONTROL DUCT (w/ Climate Control Seat System) 
    1. Attach the 2 hooks and 2 claws, and install the duct.
      Fig 9: Installing Seat Cushion Climate Control Duct With Hooks And Claws
      G05820736Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. INSTALL SEATBACK CLIMATE CONTROL BLOWER (w/ Climate Control Seat System) 
    1. Using a T30 "TORX" socket, install the blower cover and blower to the seat frame with the 6 "TORX" bolts.
    2. Connect the connector and attach the 3 clamps.
    3. Fig 10: Locating Bolts And Seatback Climate Control Cover And Blower
      G05820737Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. INSTALL LUMBAR SUPPORT ADJUSTER ASSEMBLY 
    1. Install the lumbar support adjuster with the 2 screws.
    2. Connect the connector.
  11. INSTALL FRONT SEAT CUSHION SHIELD LOWER INNER AND OUTER 
    1. Install the cushion shield with the screw.
  12. INSTALL RECLINING ADJUSTER INSIDE COVER LH UPPER 
    1. Install the inside cover with the screw.
  13. INSTALL RECLINING ADJUSTER INSIDE COVER RH UPPER 
    1. Install the inside cover with the screw.
  14. INSTALL RECLINING ADJUSTER INSIDE COVER LH LOWER 
    1. Install the inside cover with the 2 screws.
  15. INSTALL RECLINING ADJUSTER INSIDE COVER RH LOWER 
    1. Install the inside cover with the 2 screws.
      Fig 11: Identifying Reclining Adjuster Inside Cover With Screws
      G05820738Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. INSTALL SEPARATE TYPE FRONT SEATBACK COVER 
    1. Using hog ring pliers, install the seatback cover to the seatback pad with new hog rings.
    2. Install the seatback cover (with pad) to the seat frame.
    3. Install the 2 headrest supports.
    4. 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:
      • For vehicles with side airbags, the seatback cover must be securely installed. Otherwise, the side airbags may not deploy properly.
      • Make sure that the strap is not twisted after installing the bracket.
      • Install the bracket securely.
        Fig 12: Installing Seatback Cover To Seatback Pad With Hog Rings
        G05820739Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Using hog ring pliers, install the seatback cover (with pad) to the seat frame with new hog rings, and attach the hooks.
    6. Install the front seatback cover inner and outer with the 4 bolts.
  17. INSTALL FRONT SEATBACK BOARD SUB-ASSEMBLY 
    1. Attach the 2 claws and install the seatback board with the 2 screws.
    2. Fig 13: Installing Front Seatback Board Sub-Assembly With Claws And Screws
      G05820740Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. INSTALL INTERIOR NO. 2 ILLUMINATION LIGHT ASSEMBLY 
    1. Attach the 2 claws to install the light.
  19. INSTALL SEPARATE TYPE FRONT SEAT CUSHION COVER 
    1. Using hog ring pliers, install the seat cushion cover to the seat cushion pad with new hog rings.
      Fig 14: Installing Seat Cushion Cover To Seat Cushion Pad With Hog Rings
      G05820741Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install the seat cushion cover (with pad) to the seat frame and attach the hooks.
      Fig 15: Identifying Seat Cushion Cover To Seat Frame And Hooks
      G05820742Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Attach the clamp of the headrest adjuster's cable (driver side).
    4. Fig 16: Identifying Clamp Of Headrest Adjuster's Cable
      G05820743Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. INSTALL FRONT POWER SEAT SWITCH LH (w/o Seat Position Memory System) 
    1. Connect the connector.
    2. Install the switch with the 3 screws.
  21. INSTALL POSITION CONTROL ECU AND SWITCH ASSEMBLY (w/ Seat Position Memory System) 

    HINT:

    Use the same procedures described for the position control ECU and switch.

  22. INSTALL SEAT TRACK SPACER LOWER INNER 
    1. Install the spacer to the front cushion shield with the 2 screws.
  23. INSTALL FRONT SEAT CUSHION SHIELD INNER 
    1. Attach the clip and 2 claws to install the cushion shield inner.
    2. Install the screw.
  24. INSTALL SEAT TRACK SPACER LOWER OUTER 
    1. Install the spacer to the front cushion shield with the 2 screws.
  25. INSTALL FRONT POWER SEAT LUMBAR SWITCH 
    1. Install the switch to the front cushion shield with the 2 screws.
  26. CONNECT NO. 1 FRONT SEAT CUSHION SHIELD INNER 
    1. Attach the claw and connect the No. 1 cushion shield inner to the front cushion shield.
    2. Install the 2 screws.
  27. INSTALL NO. 1 FRONT SEAT CUSHION SHIELD WITH CUSHION SHIELD INNER (for Front Driver Side) 
    1. Connect the connector to the lumbar front power seat switch.
    2. Attach the 2 claws and install the cushion shield with cushion shield inner.
    3. Install the 5 screws.
    4. Connect the 2 rubber bands of the front seatback board to the seat frame.
    5. Connect the connector to the interior No. 1 illumination light.
  28. INSTALL NO. 1 FRONT SEAT CUSHION SHIELD WITH CUSHION SHIELD INNER (for Front Passenger Side) 
    1. Connect the connector to the lumbar front power seat switch.
    2. Attach the 2 claws and install the cushion shield with cushion shield inner.
    3. Install the 7 screws.
    4. Connect the 2 rubber bands of the front seatback board to the seat frame.
    5. Connect the connector to the interior No. 1 illumination light.
  29. INSTALL RECLINING POWER SEAT SWITCH KNOB 
  30. INSTALL SLIDE AND VERTICAL POWER SEAT SWITCH KNOB 
  31. INSTALL FRONT SEAT INNER BELT ASSEMBLY  (See INSTALLATION )