Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VJWT
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 -           ]
Title: SEAT: FRONT SEAT ASSEMBLY(for Manual Seat): DISASSEMBLY; 2016 - 2020 MY Sienna [12/2015 -        ]

DISASSEMBLY

CAUTION / NOTICE / HINT

CAUTION:

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

HINT:

  • Use the same procedure for the LH side and RH side.
  • The procedure listed below is for the LH side.

PROCEDURE

1. REMOVE FRONT SEAT LEG COVER LH

(a) Remove the screw.

(b) Disengage the 2 claws to remove the front seat leg cover LH.

2. REMOVE FRONT SEAT LEG COVER RH

HINT:

Use the same procedure as for the LH side.

3. REMOVE SEAT LEG COVER LH

(a) Using a clip remover, remove the clip.

(b) Remove the screw and seat leg cover LH.

4. REMOVE SEAT LEG COVER RH

HINT:

Use the same procedure as for the LH side.

5. REMOVE OCCUPANT CLASSIFICATION ECU (for Front Passenger Side)

2016 - 2020 MY Sienna [12/2015 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION ECU: REMOVAL+

6. REMOVE FRONT SEAT CUSHION INNER SHIELD RH

(a) Disengage the clip and 2 claws to remove the front seat cushion inner shield RH.

7. REMOVE FRONT SEAT INNER BELT ASSEMBLY

2016 - 2020 MY Sienna [12/2015 -        ]; SEAT BELT: FRONT SEAT INNER BELT ASSEMBLY: REMOVAL+

8. REMOVE SEAT POSITION SENSOR

2016 - 2020 MY Sienna [12/2015 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SEAT POSITION SENSOR: REMOVAL+

9. REMOVE SEAT SLIDE POSITION SENSOR PROTECTOR

2016 - 2020 MY Sienna [12/2015 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SEAT POSITION SENSOR: REMOVAL+

10. REMOVE RECLINING ADJUSTER RELEASE HANDLE LH

(a) Using a screwdriver with its tip wrapped in protective tape, disengage the claw to remove the reclining adjuster release handle LH.

Text in Illustration

*a

Protective Tape

11. REMOVE VERTICAL ADJUSTING HANDLE

(a) Remove the screw and vertical adjusting handle.

12. REMOVE FRONT SEAT CUSHION SHIELD LH

(a) Remove the screw.

(b) Disengage the clip and 2 claws to remove the front seat cushion shield LH.

13. REMOVE FRONT SEAT WIRE (for Front Passenger Side)

(a) Disconnect the seat band.

(b) Remove the 3 hog rings.

(c) Disconnect the connector and disengage the 2 wire clamps to remove the front seat wire. (w/ Seat Heater System)

(d) Disconnect the 4 connectors and disengage the 5 wire clamps to remove the front seat wire.

(e) Disconnect the connector and disengage the 2 wire clamps to separate the seat heater wire harness. (w/ Seat Heater System)

(f) Disengage the clamp to remove the seat heater control. (w/ Seat Heater System)

14. REMOVE SEAT ARMREST COVER LH

(a) Disengage the 2 claws to remove the seat armrest cover LH.

15. REMOVE FRONT SEAT ARMREST ASSEMBLY

(a) Remove the bolt and 2 washers to remove the front seat armrest assembly.

16. REMOVE NO. 1 FRONT SEATBACK HOOK

(a) Disengage the 4 claws to remove the No. 1 front seatback hook cover.

(b) Remove the screw and No. 1 front seatback hook.

17. REMOVE FRONT SEAT HEADREST SUPPORT

(a) Disengage the 4 clamps to separate the side airbag wire.

(b) Remove the 3 hog rings.

(c) Disengage the 4 claws to remove the 2 front seat headrest supports.

18. REMOVE FRONT SEATBACK COVER WITH PAD

(a) Remove the 2 nuts.

(b) Disconnect the front seatback cover brackets to remove the front seatback cover with pad.

19. REMOVE FRONT SEATBACK COVER

(a) Disengage the fastening tape and remove the 9 hog rings to remove the front seatback cover from front seatback pad.

Text in Illustration

*1

Fastening Tape

20. REMOVE FRONT SEAT AIRBAG ASSEMBLY

2016 - 2020 MY Sienna [12/2015 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: FRONT SEAT SIDE AIRBAG ASSEMBLY: REMOVAL+

21. REMOVE SEATBACK HEATER ASSEMBLY (w/ Seat Heater System)

2016 - 2020 MY Sienna [12/2015 -        ]; SEAT: FRONT SEATBACK HEATER: REMOVAL+

22. REMOVE SEAT CUSHION COVER WITH PAD

(a) Disengage the 2 hooks.

(b) Disengage the 4 hooks to remove the seat cushion cover with pad.

23. REMOVE FRONT SEAT AIRBAG SUB-ASSEMBLY RH (for Front Passenger Side)

2016 - 2020 MY Sienna [12/2015 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: SRS SEAT CUSHION AIRBAG ASSEMBLY: REMOVAL+

24. REMOVE FRONT SEAT CUSHION COVER

(a) Remove the 16 hog rings and front seat cushion cover from front seat cushion pad.

25. REMOVE SEAT CUSHION HEATER ASSEMBLY (w/ Seat Heater System)

2016 - 2020 MY Sienna [12/2015 -        ]; SEAT: FRONT SEAT CUSHION HEATER: REMOVAL+

26. REMOVE RECLINING ADJUSTER INSIDE COVER LH (for Driver Side)

(a) Disengage the guide to remove the reclining adjuster inside cover LH.

27. REMOVE RECLINING ADJUSTER INSIDE COVER RH

HINT:

Use the same procedure as for the LH side.

28. REMOVE SEAT RECLINING ADJUSTER INSIDE COVER

(a) Disengage the claw and guide to remove the seat reclining adjuster inside cover.

29. REMOVE SEAT CUSHION EDGE PROTECTOR LH

(a) Remove the screw and seat cushion edge protector LH.

30. REMOVE SEAT CUSHION EDGE PROTECTOR RH

HINT:

Use the same procedure as for the LH side.

31. REMOVE SEAT CUSHION LOWER SHIELD LH

(a) Remove the screw.

(b) Disengage the hook to remove the seat cushion lower shield LH.

32. REMOVE SEAT CUSHION LOWER SHIELD RH

HINT:

Use the same procedure as for the LH side.

33. REMOVE FRONT SEATBACK SPRING ASSEMBLY

(a) Remove the 4 bolts and front seatback spring assembly from the front seat cushion spring assembly.