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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Seats >> Seats - Service Information (1 Of 3) >> FRONT SEAT ASSEMBLY (for Power Seat) >> Disassembly [10/2021 - 11/2023] >> Procedure

Disassembly [10/2021 - 11/2023]: Procedure

  1. REMOVE OCCUPANT DETECTION ECU (for Front Passenger Side) 

    Refer to PROCEDURE - Step 3 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 3 [10/2022 - 11/2023]

  2. REMOVE POSITION CONTROL ECU ASSEMBLY (w/ Seat Position Memory System) 

    Refer to PROCEDURE - Step 3 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 3 [10/2022 - 11/2023]

  3. REMOVE SEAT HEATER CONTROL SUB-ASSEMBLY (w/ Seat Heater System) 

    Refer to PROCEDURE - Step 3 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 3 [10/2022 - 11/2023]

  4. REMOVE FRONT SEAT INNER BELT ASSEMBLY (for Driver Side) 

    Refer to PROCEDURE - Step 2 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 2 [10/2022 - 11/2023]

  5. REMOVE FRONT SEAT INNER BELT ASSEMBLY (for Front Passenger Side) 

    Refer to PROCEDURE - Step 3 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 3 [10/2022 - 11/2023]

  6. DISCONNECT SEPARATE TYPE FRONT SEATBACK COVER 
    1. Disconnect the rubber band of the separate type front seatback cover.
      GTY542049Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE FRONT SEAT FRONT CUSHION SHIELD 
    1. Remove the clip.
      GTY898403Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the guide as shown in the illustration.
      GTY854263Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
    3. Disengage the 2 claws as shown in the illustration.
      GTY869339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
    4. Disengage the 3 guides to remove the front seat front cushion shield.
      GTY898404Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE FRONT SEAT CUSHION SHIELD 
    1. Disengage the 2 claws and 2 guides.
      GTY898530Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the 2 claws.
      GTY898531Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using a screwdriver with its tip wrapped with protective tape, disengage the claw and slightly pull the front seat cushion shield as shown in the illustration.
      GTY842261Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Protective Tape
      Remove in this Direction
    4. Disengage the guide as shown in the illustration.
      GTY930836Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
    5. Disconnect the front power seat switch connector to remove the front seat cushion shield.
      GTY898527Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE FRONT SEAT INNER CUSHION SHIELD 
    1. Disengage the 2 claws and 2 guides as shown in the illustration.
      GTY886355Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
    2. Disengage the 2 claws to remove the front seat inner cushion shield.
      GTY898554Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE SLIDE AND VERTICAL POWER SEAT SWITCH KNOB 
    1. Using a moulding remover, disengage the 4 claws to remove the slide and vertical power seat switch knob.
      GTY898548Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE RECLINING POWER SEAT SWITCH KNOB 
    1. Using a moulding remover, disengage the 4 claws to remove the reclining power seat switch knob.
      GTY898547Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE SEAT ADJUSTER SHIELD CLAMP BRACKET 
    1. Remove the 2 screws and seat adjuster shield clamp bracket from the front seat cushion shield.
      GTY898550Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE FRONT POWER SEAT SWITCH 

    Refer to PROCEDURE - Step 9 [10/2021 - 10/2022] , or refer to PROCEDURE - Step 9 [10/2022 - 11/2023]

  14. REMOVE SEPARATE TYPE FRONT SEATBACK ASSEMBLY 
    1. Disengage the 2 hooks.
      GTY898549Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the claw and 4 clamps to separate the front seat airbag assembly wire harness.
      GTY759770Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      Disengage the 4 clamps first.

    3. Disconnect the connector.
      GTY759751Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Disengage the clamp.
    5. w/ Seat Heater System:
      1. Disengage the clamp.
        GTY795970Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Disconnect the connector.
    6. Remove the 4 bolts.
      GTY939480Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Disengage the 4 guides to remove the separate type front seatback assembly from the separate type front seat cushion assembly.
  15. REMOVE FRONT SEAT HEADREST SUPPORT ASSEMBLY 
    1. Disengage the 3 hooks.
      GTY852046Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. w/ Seat Heater System:
      1. Disengage the clamp.
        GTY904407Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Open the 2 fasteners.
      GTY605596Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Disengage the 4 claws and remove the 2 front seat headrest support assemblies.
      GTY759759Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. REMOVE SEPARATE TYPE FRONT SEATBACK COVER WITH PAD 
    1. Remove the separate type front seatback cover with pad.
  17. REMOVE SEPARATE TYPE FRONT SEATBACK COVER 
    1. Using a screwdriver, disengage the 9 claws and remove the separate type front seatback cover from the separate type front seatback pad as shown in the illustration.
      GTY748355Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Screwdriver - -
  18. REMOVE FRONT SEATBACK HEATER ASSEMBLY (w/ Seat Heater System) 

    Refer to PROCEDURE - Step 11 [10/2021 - 10/2022] , or refer to PROCEDURE - Step 11 [10/2022 - 11/2023]

  19. REMOVE FRONT SEAT AIRBAG ASSEMBLY 

    Refer to PROCEDURE - Step 18 [10/2021 - 10/2022] , or refer to PROCEDURE - Step 18 [10/2022 - 11/2023]

  20. REMOVE SEATBACK CLIMATE CONTROL BLOWER (w/ Climate Control Seat System (w/ Lumbar Support)) 
    1. Disengage the wire harness clamp and disconnect the connector.
      GTY906469Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Wire Harness Clamp
      *b Hook
    2. Disengage the 2 claws and 2 hooks and remove the seatback climate control blower.
  21. REMOVE LUMBAR SUPPORT ADJUSTER ASSEMBLY (w/ Lumbar Support) 

    Refer to PROCEDURE - Step 11 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 11 [10/2022 - 11/2023]

  22. REMOVE FRONT SEAT NO. 2 WIRE (for Driver Side) 
    1. w/o Lumbar Support:
      1. Disconnect the connector.
        GTY940943Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Disengage the 2 clamps to remove the front seat No. 2 wire.
    2. w/ Lumbar Support:
      1. Disengage the 2 clamps to remove the front seat No. 2 wire.
        GTY899045Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  23. REMOVE FRONT SEAT NO. 2 WIRE (for Front Passenger Side) 
    1. w/ Climate Control Seat System:
      1. Disengage the clamp (A) and disconnect the connector (B).
        GTY893381Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the 2 clamps (C) and disconnect the connector (D) to remove the front seat No. 2 wire.
  24. REMOVE FRONT SEATBACK SPRING SUB-ASSEMBLY (w/o Lumbar Support) 
    1. Disengage the 2 claws to separate the 2 front No. 2 seatback edge protectors from the front seatback frame sub-assembly.
      GTY939601Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the front seatback spring sub-assembly from the front seatback frame sub-assembly as shown in the illustration.
      GTY912855Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
    3. w/ Seatback Felt:
      1. Remove the seatback felt from the front seatback spring sub-assembly.
  25. REMOVE FRONT NO. 2 SEATBACK EDGE PROTECTOR 
    1. w/o Lumbar Support:
      1. Remove the 2 front No. 2 seatback edge protectors from the front seatback spring sub-assembly.
    2. w/ Lumbar Support:
      1. Remove the 2 front No. 2 seatback edge protectors from the lumbar support adjuster assembly.
  26. REMOVE FRONT NO. 2 SEATBACK HOOK 
    1. Remove the 2 front No. 2 seatback hooks from the front seatback frame sub-assembly.
      GTY574545Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  27. REMOVE SEPARATE TYPE FRONT SEAT CUSHION COVER WITH PAD 
    1. w/ Seat Heater System:
      1. Disconnect the connector.
        GTY904390Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Disengage the clamp.
    2. Disengage the 10 hooks and remove the separate type front seat cushion cover with pad from the separate type front seat cushion spring assembly.
      GTY904388Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  28. REMOVE FRONT SEAT CUSHION AIRBAG ASSEMBLY RH (for Front Passenger Side) 

    Refer to PROCEDURE - Step 16 [10/2021 - 10/2022] , or refer to PROCEDURE - Step 16 [10/2022 - 11/2023]

  29. REMOVE SEPARATE TYPE FRONT SEAT CUSHION COVER 
    1. Using a screwdriver, disengage the 14 claws and remove the separate type front seat cushion cover from the separate type front seat cushion pad as shown in the illustration.
      GTY751914Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Screwdriver - -
  30. REMOVE FRONT SEAT CUSHION HEATER ASSEMBLY (w/ Seat Heater System) 

    Refer to PROCEDURE - Step 10 [10/2021 - 10/2022] , or refer to PROCEDURE - Step 10 [10/2022 - 11/2023]

  31. REMOVE SEAT CUSHION CLIMATE CONTROL BLOWER ASSEMBLY (w/ Climate Control Seat System) 
    1. Disengage the wire harness clamp and disconnect the connector.
      GTY798796Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 bolts.
      GTY798795Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disengage the hook and remove the seat cushion climate control blower assembly.
  32. REMOVE RECLINING ADJUSTER INSIDE COVER LH 
    1. for LH Side:
      1. Disengage the 4 claws to remove the reclining adjuster inside cover LH.
        GTY898546Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. for RH Side:
      1. Disengage the 4 claws to remove the reclining adjuster inside cover LH.
        GTY898545Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  33. REMOVE FRONT SEAT LOWER CUSHION SHIELD LH 
    1. for LH Side:
      1. Disengage the hook.
        GTY870462Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Hook
        *b Guide
      2. Disengage the 2 claws and 2 guides to remove the front seat lower cushion shield LH.
    2. for RH Side:
      1. Disengage the hook.
        GTY886605Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Hook
        *b Guide
      2. Disengage the claw and guide to remove the front seat lower cushion shield LH.
  34. REMOVE FRONT SEAT WIRE 
    1. Disconnect each connector and disengage each clamp to remove the front seat wire.
  35. REMOVE FRONT SEAT WIRE RH (for Front Passenger Side) 
    1. Disconnect each connector and disengage each clamp to remove the front seat wire RH.
  36. REMOVE FRONT SEAT NO. 2 WIRE LH (for Driver Side) 
    1. Disengage the clamp and disconnect the connector.
      GTY899049Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the claw to remove the front seat No. 2 wire LH.
  37. REMOVE FRONT SEAT CUSHION SPRING SUB-ASSEMBLY 
    1. Disengage the 6 hooks to remove the front seat cushion spring sub-assembly from the front seat adjuster assembly.
      GTY542111Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  38. REMOVE FRONT SEAT CUSHION WIRE HARNESS HOLDER 
    1. Remove the 2 screws.
      GTY939468Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the 2 claws.
      GTY900868Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
    3. Disengage the guide to remove the front seat cushion wire harness holder as shown in the illustration.
  39. REMOVE FRONT LH SEAT LOWER CUSHION SHIELD 
    1. Disengage the claw and guide to remove the front LH seat lower cushion shield as shown in the illustration.
      GTY894458Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction
  40. REMOVE SEAT TRACK UPPER RAIL COVER 
    1. Disengage the 4 claws to remove the seat track upper rail cover as shown in the illustration.
      GTY829680Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction

      HINT: 

      Use the same procedure for both sides.

  41. REMOVE REAR UPPER SEAT TRACK COVER 
    1. Disengage the 4 claws to remove the rear upper seat track cover as shown in the illustration.
      GTY796699Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Remove in this Direction

      HINT: 

      Use the same procedure for both sides.

  42. REMOVE POWER SEAT LIFTER MOTOR ASSEMBLY 

    Refer to PROCEDURE - Step 11 [10/2021 - 10/2022] , or refer to PROCEDURE - Step 11 [10/2022 - 11/2023]

  43. REMOVE POWER SEAT TILT MOTOR ASSEMBLY 

    Refer to PROCEDURE - Step 12 [10/2021 - 10/2022] , or refer to PROCEDURE - Step 12 [10/2022 - 11/2023]

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