Front Seat Assembly: Disassembly

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

HINT:

Use the same procedures for the LH side and RH side.
The procedures listed below are for the LH side.

REMOVE SLIDE AND VERTICAL POWER SEAT SWITCH KNOB
1. Apply protective tape around the cushion shield.
2. Using a screwdriver, detach the 2 claws and remove the knob.
  HINT:
  
  Tape the screwdriver tip before use.
  
  Fig 1: Applying Protective Tape Around Cushion Shield
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE RECLINING POWER SEAT SWITCH KNOB
1. Using a screwdriver, detach the 2 claws and remove the knob.
  HINT:
  
  Tape the screwdriver tip before use.
  
  Fig 2: Removing Reclining Power Seat Switch Knob
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE FRONT SEAT CUSHION SHIELD LH
1. Remove the 2 rubber bands from the hooks.
  
  Fig 3: Identifying Rubber Bands From Hooks
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the interior illumination light connector.
  
  Fig 4: Locating Interior Illumination Light Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the 2 screws.
  
  Fig 5: Identifying Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Remove the 3 screws.
5. Detach the 2 claws and remove the cushion shield.
  
  Fig 6: Identifying Cushion Shield Claws And Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
6. for Driver Side:
  1. Detach the 2 wire harness clamps
  2. Disconnect the 2 connectors.
7. for Front Passenger Side:
  Disconnect the connector.
  
  Fig 7: Locating Wire Harness Clamps With Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE FRONT INNER NO. 1 SEAT CUSHION SHIELD LH (for Driver Side)
1. Remove the 2 screws.
2. Detach the claw and guide, and then remove the cushion shield.
  
  Fig 8: Identifying Driver Side Cushion Shield Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE FRONT INNER NO. 1 SEAT CUSHION SHIELD RH (for Front Passenger Side)
1. Remove the screw.
2. Detach the claw and remove the cushion shield.
  
  Fig 9: Identifying Front Passenger Side Cushion Shield Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE LUMBAR SWITCH
1. Remove the 2 screws and switch.
  
  Fig 10: Identifying Lumbar Switch Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE SEAT VARIABLE CUSHION SWITCH (for Driver Side)
1. Remove the 2 screws and switch.
REMOVE FRONT SEAT INNER BELT ASSEMBLY LH (See REMOVAL )
REMOVE FRONT INNER SEAT CUSHION SHIELD LH
1. Remove the screw.
2. Detach the 2 claws and clip, and then remove the cushion shield.
  
  Fig 12: Identifying Claws And Clip With Screw
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE FRONT POWER SEAT SWITCH LH
1. for Driver Side:
  Disconnect the 2 connectors.
2. for Front Passenger Side:
  Disconnect the connector.
3. Remove the 3 screws and switch.
  
  Fig 13: Identifying Front Power Seat Switch Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE SEAT CUSHION COVER WITH PAD
1. Using a clip remover, remove the 2 clips
  
  Fig 14: Identifying Seat Cushion Cover Clip
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. w/o Climate Control Seat System.
  1. Disconnect the seat heater connector and detach the 2 wire harness clamps.
    
    Fig 15: Locating Seat Heater Connector And Wire Harness Clamps
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Disconnect the seat heater control connector and detach the wire harness clamp.
    
    Fig 16: Locating Wire Harness Clamp
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. w/ Climate Control Seat System:
  1. Disconnect the seat heater connector and detach the 3 wire harness clamps.
    
    Fig 17: Locating Wire Harness Clamps
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Disconnect the control connector.
  3. Detach the claw and remove the connector.
  4. Detach the wire harness clamp.
4. for Driver Side:
  1. Detach the hooks.
    
    Fig 19: Identifying Driver Side Hooks
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Detach the hooks.
    
    Fig 20: Identifying Hooks
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. Remove the hog rings and seat cushion cover with pad.
    
    Fig 21: Identifying Hog Rings And Seat Cushion Cover With Pad
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. for Front Passenger Side:
  1. Bend the 2 seat frame claws upward.
  2. Detach the hooks and remove the seat cushion cover with pad.
REMOVE FRONT SEPARATE TYPE SEAT CUSHION COVER
NOTE:
- As the front passenger side seat has an occupant classification system, its front seat cushion cannot be disassembled.
- If replacing the front passenger side seat, replace the No. 1 seat cushion assembly (cushion set, occupant detection sensor, occupant classification ECU and 2 nuts).
- When the No. 1 seat cushion assembly (cushion set, occupant detection sensor, occupant classification ECU and 2 nuts) is replaced, the previous ECU data must be saved in the Techstream and loaded into the new ECU (See REGISTRATION ).
- After replacing the No. 1 seat cushion assembly (cushion set, occupant detection sensor, occupant classification ECU and 2 nuts), if there is a malfunction in the occupant classification system, perform zero point calibration and the sensitivity check (See INITIALIZATION ).
  
  Fig 22: Identifying Seat Cushion Cover With Pad
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Remove the hog rings and front seat cushion cover.
REMOVE FRONT SEAT CUSHION HEATER ASSEMBLY LH
NOTE:
- As the front passenger side seat has an occupant classification system, its front seat cushion cannot be disassembled.
- If replacing the front passenger side seat, replace the No. 1 seat cushion assembly (cushion set, occupant detection sensor, occupant classification ECU and 2 nuts).
- When the No. 1 seat cushion assembly (cushion set, occupant detection sensor, occupant classification ECU and 2 nuts) is replaced, the previous ECU data must be saved in the Techstream and loaded into the new ECU (See REGISTRATION ).
- After replacing the No. 1 seat cushion assembly (cushion set, occupant detection sensor, occupant classification ECU and 2 nuts), if there is a malfunction in the occupant classification system, perform zero point calibration and the sensitivity check (See INITIALIZATION ).
  
  Fig 23: Identifying Hog Rings And Front Seat Cushion Cover
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Cut off the tack pins which fasten the seat heater to the seat cushion cover, and then remove the seat cushion heater from the seat cushion cover.
  
  Fig 24: Identifying Tack Pins
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE FRONT SEATBACK BOARD SUB-ASSEMBLY LH
1. Remove the 2 screws.
2. Move the seatback board in the direction of the arrow to detach the 2 hooks and remove the seatback board.
REMOVE NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY (See INSPECTION )
REMOVE FRONT SEAT HEADREST SUPPORT
1. Detach the 4 claws and remove the 2 headrest supports.
  
  Fig 26: Identifying Front Seat Headrest Support Claws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE SEATBACK COVER WITH PAD
1. w/ Climate Control Seat System:
  Detach the 2 claws and disconnect the duct.
  
  Fig 27: Identifying Seatback Cover With Pad
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the 3 hog rings and detach the 9 hooks.
  
  Fig 28: Identifying Hog Rings
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the nut and seatback cover bracket from the seat frame.
4. Remove the seatback cover with pad.
  
  Fig 29: Identifying Seatback Cover Bracket To Seat Frame With Nut
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE FRONT SEPARATE TYPE SEATBACK COVER
1. Disconnect the seatback cover bracket from the seatback pad.
2. Remove the hog rings and seatback cover
  
  Fig 31: Identifying Hog Rings And Seatback Cover
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE FRONT SEATBACK HEATER ASSEMBLY LH
1. Cut off the tack pins which fasten the seatback heater to the seatback cover, and then remove the seatback heater from the seatback cover.
  
  Fig 32: Identifying Tack Pins
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE INSIDE RECLINING ADJUSTER COVER LH
1. Detach the wire harness clamp.
2. Remove the 2 screws.
3. Detach the claw and remove the reclining adjuster cover.
REMOVE INSIDE RECLINING ADJUSTER COVER RH
1. Detach the wire harness clamp.
2. Remove the 2 screws.
3. Detach the claw and remove the reclining adjuster cover.
REMOVE OUTSIDE RECLINING ADJUSTER COVER LH
1. Remove the screw and detach the claw, and then remove the reclining adjuster cover.
  
  Fig 34: Identifying Reclining Adjuster Cover LH Claw
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE OUTSIDE RECLINING ADJUSTER COVER RH
1. Remove the screw and detach the claw, and then remove the reclining adjuster cover.
  
  Fig 35: Identifying Reclining Adjuster Cover RH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE SEAT CLIMATE CONTROL CONTROLLER (w/ Climate Control Seat System)
1. Remove the clamp.
2. Disconnect the connector.
3. Detach the connector clamp.
  
  Fig 36: Locating Connector Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Detach the 2 hooks on the top of the controller. Then, while lifting the controller in the direction of the arrow, detach the 2 hooks on the bottom and remove the controller.
  
  Fig 37: Lifting Controller
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE LUMBAR SUPPORT ADJUSTER ASSEMBLY LH
1. Remove the 4 springs.
2. Detach the 4 hooks and remove the seatback spring.
  
  Fig 38: Identifying Seatback Spring And Hooks
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Disconnect the lumbar support adjuster connector.
4. Remove the 2 screws and lumbar support adjuster.
  
  Fig 39: Locating Lumbar Support Adjuster Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Detach the 3 claws and remove the bush from the seat frame.
  
  Fig 40: Identifying Seat Frame Bush Claws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE UPPER ACTIVE HEADREST UNIT
1. Remove the nut and cable clamp to remove the upper active headrest unit from the lower active headrest unit.
  
  Fig 41: Identifying Cable Clamp And Nut
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Remove the 4 nuts and upper active headrest unit.
  
  Fig 42: Identifying Upper Active Headrest Unit Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE LOWER ACTIVE HEADREST UNIT
1. Remove the 2 nuts and lower active headrest unit.
  
  Fig 43: Identifying Lower Active Headrest Unit Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE FRONT LOWER SEAT CUSHION SHIELD LH
1. Remove the screw.
2. Detach the hook and remove the lower seat cushion shield.
REMOVE FRONT LOWER SEAT CUSHION SHIELD RH
1. Remove the screw.
2. Detach the hook and remove the lower seat cushion shield
  
  Fig 44: Identifying Front Lower Seat Cushion Shield Screw
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE SEAT HEATER CONTROL SUB-ASSEMBLY
1. Disconnect the seat heater control connector and detach the clamp.
2. Using a screwdriver, detach the claw and remove the seat heater control.
REMOVE OCCUPANT DETECTION SENSOR (for Front Passenger Side) (See REMOVAL )
REMOVE OCCUPANT CLASSIFICATION ECU (for Front Passenger Side) (See REMOVAL )
REMOVE SEAT POSITION SENSOR (See INSTALLATION )
REMOVE SEAT CLIMATE CONTROL ECU (w/ Climate Control Seat System)
1. Disconnect the 2 connectors.
2. Remove the 2 bolts and ECU
  
  Fig 46: Locating Seat Climate Control ECU Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE SEAT CLIMATE CONTROL BLOWER LH (w/ Climate Control Seat System)
1. Detach the 4 claws and disconnect the duct.
  
  Fig 47: Identifying Seat Climate Control Blower Claws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Detach the 2 clamps.
3. Disconnect the connector.
  
  Fig 48: Locating Connector With Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Remove the 2 bolts, nut and blower.
  
  Fig 49: Identifying Seat Climate Control Blower Nut And Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE NO. 1 AIR FILTER (w/ Climate Control Seat System)
1. Rotate the filter counterclockwise to detach the claws, and then remove it.
  
  Fig 50: Rotating Air Filter
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE SEAT CLIMATE CONTROL CONTROLLER LH (w/ Climate Control Seat System)
1. Disconnect the connector.
2. Detach the clamp and 2 claws, and then move the wire harness in the direction of the arrow.
  
  Fig 51: Locating Seat Climate Control Controller Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Remove the 2 screws.
  
  Fig 52: Identifying Seat Climate Control Screws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Detach the 4 claws and remove the bracket.
  
  Fig 53: Identifying Bracket Claws
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. Detach the 2 wire harness clamps and disconnect the connector.
6. Remove the controller.
REMOVE FRONT SEAT WIRE LH

Fig 54: Locating Wire Harness Clamps With Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002