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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Body & Frame >> Seats >> Seats - Service Information (1 Of 3) >> FRONT SEAT ASSEMBLY (for Manual Seat) >> Installation [10/2022 - 11/2023] >> Procedure

Installation [10/2022 - 11/2023]: Procedure

  1. INSTALL FRONT SEAT ASSEMBLY RH 
    1. Place the front seat assembly RH in the cabin.
      GTY938380Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Be careful not to damage the vehicle body.

    2. Connect the front seat cushion airbag assembly RH connector under the front seat assembly RH.
      NOTE:
      • When connecting any airbag connector, take care not to damage the airbag wire harness.
      • When connecting the connector, make sure to push it straight in.
    3. Connect the front seat airbag assembly connector under the front seat assembly RH.
      1. Before connecting the connector, check that the position of the white housing lock is correct as shown in the illustration.
        GTY798858Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Correct *b Incorrect
        *c Yellow CPA *d White Housing Lock
      2. Be sure to engage the connectors until they are locked (when locking, make sure that a click sound can be heard).
        NOTE:
        • When connecting any airbag connector, take care not to damage the airbag wire harness.
        • When engaged, the white housing lock will slide. Be sure not to hold the white housing lock and upper part of the yellow CPA, as it may result in an insecure fit.
    4. Connect each connector and engage each clamp under the front seat assembly RH.
    5. Temporarily install the front seat assembly RH with the 4 bolts.
    6. Operate the seat track adjusting handle and move the front seat assembly RH to the rearmost position.
    7. Using a T50 "TORX" socket wrench, tighten the 2 bolts on the front side of the front seat assembly RH.
      GTY855943Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 37 N.m (377 kgf/cm, 27 ft.lbf) 

      NOTE:

      Tighten the bolts in the order shown in the illustration.

    8. Operate the seat track adjusting handle and move the front seat assembly RH to the foremost position.
    9. Using a T50 "TORX" socket wrench, tighten the 2 bolts on the rear side of the front seat assembly RH.
      GTY840101Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 37 N.m (377 kgf/cm, 27 ft.lbf) 

      NOTE:

      Tighten the bolts in the order shown in the illustration.

  2. INSPECT SEAT SLIDE ADJUSTER LOCK 
    1. While performing a sliding operation of the front seat assembly RH, check that the left and right adjusters move together smoothly and lock simultaneously. If the seat adjusters do not lock simultaneously, loosen the front seat assembly RH installation bolts and adjust the adjuster position.
  3. INSTALL INNER SEAT TRACK BRACKET COVER 
    1. Operate the seat track adjusting handle and move the front seat assembly RH to the foremost position.
    2. Engage the 2 claws and guide to install the inner seat track bracket cover.
      GTY893530Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSTALL SEAT TRACK COVER 
    1. Engage the 2 claws and guide to install the seat track cover.
      GTY938375Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSTALL FRONT INNER SEAT TRACK BRACKET COVER 
    1. Operate the seat track adjusting handle and move the front seat assembly RH to the rearmost position.
    2. Engage the 2 claws to install the front inner seat track bracket cover.
      GTY893534Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSTALL FRONT OUTER SEAT TRACK BRACKET COVER 
    1. Engage the 2 claws to install the front outer seat track bracket cover.
      GTY893535Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. INSTALL FRONT SEAT HEADREST ASSEMBLY 
    1. Install the front seat headrest assembly to the front seat assembly RH.
  8. CONNECT CABLE TO NEGATIVE AUXILIARY BATTERY TERMINAL 

    for A25A-FXS: Refer to PROCEDURE - Step 2

    for T24A-FTS: Refer to PROCEDURE - Step 4

    NOTE:

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

    Refer to INITIALIZATION [10/2022 - 11/2023]

  9. INSTALL BATTERY SERVICE HOLE COVER (for HV Model) 

    Refer to PROCEDURE - Step 3

  10. CHECK SEAT HEATER (w/ Seat Heater System) 

    Refer to OPERATION CHECK [12/2019 - ]

  11. PERFORM DIAGNOSTIC SYSTEM CHECK 

    Refer to DTC CHECK / CLEAR [12/2019 - 11/2023]

  12. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK 

    Refer to INITIALIZATION [10/2021 - 11/2023]

  13. INSPECT SRS WARNING LIGHT 

    Refer to OPERATION CHECK [10/2022 - 11/2023]

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