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Home >> Subaru >> 2021 >> Forester Base >> Repair and Diagnosis >> Body & Frame >> Seats >> Seat System - Seats >> Front Seat >> Assembly >> Seat Common Operation Procedure

Seat Common Operation Procedure

CAUTION:
  • Do not confuse the harness routing of the side airbag harness and the seat belt INN front harness, etc. Assembling with harnesses improperly routed may cause the harness to get caught and short out.
  • If the hook spring of the seat frame assembly backrest is deformed or comes off due to the deformation, replace the flat mat and hook spring assembly with a new part.
    G12398906Courtesy of SUBARU OF AMERICA, INC.
  • Before handling the airbag system components, refer to "CAUTION" of "General Description" in "AIRBAG SYSTEM". Ref. to AIRBAG SYSTEM>GENERAL DESCRIPTION>CAUTION .
  • Make sure that the side airbag module is installed as shown in the figure.
    G13873934Courtesy of SUBARU OF AMERICA, INC.
  • If the cover front seat backrest is not installed securely, the side airbag may not be activated properly, therefore keep strictly to the following procedures.
    • Do not reuse the mounting nuts of the airbag module. Always replace with a new specified nut.
    • Be careful not to stain or damage the cover front seat backrest during assembly.
    • Do not reuse the hog ring and hang wire.
    • Secure the hog ring using hog ring pliers.
    • Install the hog rings to the specified points securely and make sure that there is no wrinkle or twisting on the cover front seat backrest.
  1. Install a new occupant detection control module. (Passenger's side only)
    CAUTION: If the occupant detection control module is removed from the bracket, do not reuse it. Once removed from the bracket, the engaging force of the claw is reduced, and it may come off from the bracket due to vibration while driving.
  2. Install the seat heater unit.
    CAUTION:
    • If the seat heater unit is removed, replace the pad assembly with a new part.
    • If the seat heater unit is reused, remove the polyurethane section from the reverse side completely and attach a new pad assembly with a double-sided tape.

    Preparation items: 

    Double-sided tape: NITTO DENKO 501L or equivalent

  3. Make sure that there is no foreign matter on side airbag module.
  4. Assemble the seat cover.
    1. Adjust so that the left and right clearances between wire and seat pad become equal, and mark the seat pad.
      G13873935Courtesy of SUBARU OF AMERICA, INC.
    2. Mark the center of the wire on the pad side to which the hog ring is attached.
      G13873936Courtesy of SUBARU OF AMERICA, INC.
    3. Insert the wire into the seat cover, and align the wire with the position marked in step 1).
      G08319156Courtesy of SUBARU OF AMERICA, INC.
    4. Mark the wire on the seat cover side according to the markings on the seat pad.
      G13873938Courtesy of SUBARU OF AMERICA, INC.
    5. Perform steps (1) to (4) for all sections to which the hog rings are attached.
    6. Secure the hang wire with new hog rings in the order from (1) - (4).
      G12398912Courtesy of SUBARU OF AMERICA, INC.
      G13226783Courtesy of SUBARU OF AMERICA, INC.
    7. Make sure that all hog rings and plastic fasteners (a) are attached securely.
      • Cushion cover
        G13226737Courtesy of SUBARU OF AMERICA, INC.
      • Backrest cover surface side
        G13226743Courtesy of SUBARU OF AMERICA, INC.
      • Backrest cover back side
        G13226764Courtesy of SUBARU OF AMERICA, INC.
    8. Tighten the fastener at the back side of backrest assembly.
    9. Fasten the plastic fastener at the back side (bottom) of backrest assembly.
    G13201104Courtesy of SUBARU OF AMERICA, INC.
  5. Assemble remaining parts in the reverse order of disassemble.
    NOTE:
    • Check the shape and front/rear directions before assembling the headrest bushing.
      G13226788Courtesy of SUBARU OF AMERICA, INC.
    • When installing the seat belt INN front, follow the procedures described in the SEAT BELT service information. Ref. to SEAT BELT SYSTEM>FRONT SEAT BELT>INSTALLATION .
    • Install the backrest assembly and seat cushion assembly in the following procedure.
      1. Temporarily tighten the four reclining hinge bolts.
      2. Place the backrest in the most upright position.
      3. Tighten the reclining hinge bolts in order from (1) to (4) two or three times, until they reach the specified torque.
    G13226789Courtesy of SUBARU OF AMERICA, INC.

    Tightening torque: 

    Refer to "COMPONENT" of "General Description". Ref. to SEATS>General Description>COMPONENT>FRONT SEAT .

  6. If any wrinkles are found after the assembly of the seat cover, finish the seat cover with iron.
    1. Place the wet towel on wrinkles.
      G08319160Courtesy of SUBARU OF AMERICA, INC.
    2. Touch up with warm iron.
      CAUTION: Keep moving the iron, otherwise the seat cover surface can be damaged.
      NOTE: This method is available for genuine leather, synthetic leather, cloth, etc.
    G08319161Courtesy of SUBARU OF AMERICA, INC.
  7. Install connectors located under the front seat. Ref. to SEATS>Front Seat>ASSEMBLY>CONNECTOR AND HARNESS .
  8. Install the seat assembly. Ref. to SEATS>Front Seat>INSTALLATION .
    CAUTION: For the passenger's seat, be sure to perform [Rezeroing] for the occupant detection system after installing the seat assembly. Ref. to OCCUPANT DETECTION (DIAGNOSTICS)>REZERO .
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