Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Disassembly

DISASSEMBLY

CAUTION / NOTICE / HINT

CAUTION:

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

HINT:

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

PROCEDURE

1. REMOVE SEAT POSITION AIRBAG SENSOR (for Driver Side)

Click here

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

Click here

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

Click here

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

Click here

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

Click here

6. DISCONNECT SEPARATE TYPE FRONT SEATBACK COVER

(a) Disconnect the 2 rubber bands of the separate type front seatback cover.

7. REMOVE FRONT SEAT FRONT CUSHION SHIELD

(a) Remove the screw.

(b) Disengage the 5 claws and 2 guides to remove the front seat front cushion shield.

8. REMOVE FRONT SEAT CUSHION SHIELD

(a) Remove the 2 screws.

(b) Disengage the 2 claws.

(c) Using a screwdriver with its tip wrapped with protective tape, disengage the 2 claws and slightly pull the front seat cushion shield as shown in the illustration.

*a	Protective Tape
	Remove in this Direction

(d) Disengage the guide as shown in the illustration.

Remove in this Direction

(e) Disconnect the front power seat switch connector to remove the front seat cushion shield.

9. REMOVE FRONT SEAT INNER CUSHION SHIELD

(a) Remove the 2 screws.

(b) Disengage the guide to remove the front seat inner cushion shield as shown in the illustration.

	Remove in this Direction (1)
	Remove in this Direction (2)

10. REMOVE FRONT SEAT LOWER CUSHION SHIELD

(a) Remove the screw.

(b) Disengage the claw to remove the front seat lower cushion shield as shown in the illustration.

Remove in this Direction

11. REMOVE SLIDE AND VERTICAL POWER SEAT SWITCH KNOB

(a) Using a moulding remover, disengage the 4 claws to remove the slide and vertical power seat switch knob.

12. REMOVE RECLINING POWER SEAT SWITCH KNOB

(a) Using a moulding remover, disengage the 4 claws to remove the reclining power seat switch knob.

13. REMOVE FRONT POWER SEAT SWITCH

Click here

14. REMOVE SEPARATE TYPE FRONT SEATBACK ASSEMBLY

(a) Disengage the hook.

(b) Disengage the claw and 3 clamps to separate the front seat airbag assembly wire harness. HINT: Disengage the 3 clamps first.

(c) Disengage the 2 clamps.

(d) Disconnect the connector to separate the front seat No. 2 wire.

(e) Disengage the clamp.

(f) Disconnect the connector to separate the front seatback heater assembly connector.

(g) Remove the 4 bolts to remove the separate type front seatback assembly from the separate type front seat cushion assembly.

15. REMOVE FRONT SEAT HEADREST SUPPORT

(a) Open the 2 fasteners.

(b) Disengage the clamp.

(c) Disengage the 2 hooks.

(d) Pass each wire harness through the hole of the separate type front seatback cover.

(e) Using a T25 "TORX" socket wrench, remove the screw and disengage the 2 brackets.

*a Bracket

(f) Using a screwdriver with its tip wrapped with protective tape, disengage the 2 claws and remove the 2 front seat headrest supports.

*a Protective Tape

16. REMOVE SEPARATE TYPE FRONT SEATBACK COVER WITH PAD

(a) Remove the separate type front seatback cover with pad.

17. REMOVE SEPARATE TYPE FRONT SEATBACK COVER

(a) Remove the 10 hog rings, disengage the fastener and remove the separate type front seatback cover from the separate type front seatback pad.

Fastener

18. REMOVE FRONT SEATBACK HEATER ASSEMBLY

Click here

19. REMOVE FRONT SEAT AIRBAG ASSEMBLY

Click here

20. REMOVE SEATBACK CLIMATE CONTROL BLOWER (w/ Climate Control Seat System)

(a) Disengage the wire harness clamp and disconnect the connector. HINT: Disengage the wire harness clamp first.

(b) Disengage the 2 claws and 3 hooks. HINT: Disengage the 2 claws first.

(c) Disengage the claw.

(d) Remove the 4 screws and seatback climate control blower from the seatback blower fan adapter.

21. REMOVE FRONT SEATBACK SPRING SUB-ASSEMBLY RH (w/o Lumbar Support)

(a) Disengage the 8 hooks to remove the front seatback spring sub-assembly RH from the front seatback frame sub-assembly.

22. REMOVE LUMBAR SUPPORT ADJUSTER ASSEMBLY (w/ Lumbar Support)

Click here

23. REMOVE FRONT NO. 2 SEATBACK HOOK (w/ Climate Control Seat System)

(a) Disengage the 2 clamps to remove the 2 front No. 2 seatback hooks from the front seatback frame sub-assembly.

24. REMOVE FRONT SEAT NO. 2 WIRE

(a) Disconnect each connector and disengage each clamp to remove the front seat No. 2 wire.

25. REMOVE SEPARATE TYPE FRONT SEAT CUSHION COVER WITH PAD

(a) Disengage the 4 clamps.

(b) Disconnect the connector to separate the front seat cushion heater assembly wire harness.

(c) Disengage the 9 hooks and remove the separate type front seat cushion cover with pad from the separate type front seat cushion spring assembly.

26. REMOVE SEPARATE TYPE FRONT SEAT CUSHION COVER

(a) Remove the 2 hog rings.

(b) Remove the 13 hog rings, disengage the 2 fasteners and remove the separate type front seat cushion cover from the separate type front seat cushion pad.

Fastener

27. REMOVE FRONT SEAT CUSHION HEATER ASSEMBLY

Click here

28. REMOVE LH SEAT RECLINING ADJUSTER INSIDE COVER

(a) Disengage the 2 guides to remove the LH seat reclining adjuster inside cover.

29. REMOVE FRONT SEAT LOWER CUSHION SHIELD LH (for Driver Side)

(a) Remove the screw.

(b) Disengage the hook.

(c) Disengage the claw and guide to remove the front seat lower cushion shield LH.

30. REMOVE FRONT SEAT LOWER CUSHION SHIELD RH (for Driver Side)

(a) Disengage the hook.

(b) Disengage the 2 claws to remove the front seat lower cushion shield RH.

31. REMOVE FRONT SEAT LOWER CUSHION SHIELD LH (for Front Passenger Side)

(a) Remove the screw.

(b) Disengage the hook.

*a Hook *b Guide

(c) Disengage the claw and guide to remove the front seat lower cushion shield LH.

32. REMOVE FRONT SEAT LOWER CUSHION SHIELD RH (for Front Passenger Side)

HINT:

Use the same procedure as for the front seat lower cushion shield LH (for Driver Side).

33. REMOVE SEAT TRACK UPPER RAIL COVER LH

(a) Disengage the 2 claws to remove the seat track upper rail cover LH as shown in the illustration.

Remove in this Direction

34. REMOVE SEAT TRACK UPPER RAIL COVER RH

HINT:

Use the same procedure as for the LH side.

35. REMOVE LH SEAT SEAT TRACK UPPER RAIL COVER (for Driver Side)

(a) Disengage the 2 claws to remove the LH seat seat track upper rail cover as shown in the illustration.

Remove in this Direction

36. REMOVE RH SEAT SEAT TRACK UPPER RAIL COVER (for Front Passenger Side)

HINT:

• Use the same procedure as for the LH seat seat track upper rail cover (for Driver Side).
• Use the same procedure for both RH seat seat track upper rail covers.

37. REMOVE SEAT CUSHION CLIMATE CONTROL BLOWER (w/ Climate Control Seat System)

(a) Disengage the wire harness clamp and disconnect the connector.

(b) Remove the 4 screws.

Wire Harness Clamp

(c) Disengage the claw and wire harness clamp.

HINT:

Disengage the claw first.

(d) Remove the 4 screws and seat cushion climate control blower from the seat cushion blower fan adapter.

38. REMOVE FRONT SEAT WIRE

(a) Remove the screw.

(b) Disconnect each connector and disengage each clamp to remove the front seat wire.

39. REMOVE FRONT SEAT CUSHION SPRING SUB-ASSEMBLY

(a) Disengage the 8 hooks to remove the front seat cushion spring sub-assembly from the front seat adjuster assembly.