SEAT: LUMBAR SUPPORT ADJUSTER ASSEMBLY: REMOVAL; 2022 MY Avalon Avalon HV [08/2021

Last Modified: 08-21-2023	6.11:8.1.0	Doc ID: RM100000001YN8K
Model Year Start: 2022	Model: Avalon HV	Prod Date Range: [08/2021 - ]
Title: SEAT: LUMBAR SUPPORT ADJUSTER ASSEMBLY: REMOVAL; 2022 MY Avalon Avalon HV [08/2021 - ]

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during lumbar support adjuster assembly removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced (for Gasoline Model)

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed
*: When performing learning using the Techstream. Click here
Disconnect cable from negative auxiliary battery terminal	Perform steering sensor zero point calibration	Lane tracing assist system
		Pre-collision system
		Intelligent clearance sonar system*
		Lighting system (for Gasoline Model with Cornering Light)
	Memorize steering angle neutral point	Parking assist monitor system
	Memorize steering angle neutral point	Panoramic view monitor system
Occupant detection ECU Front passenger seat	Zero point calibration (Occupant classification system)	Occupant classification system Passenger airbag ON/OFF indicator Airbag system (Front passenger side) Seat belt warning system (Front passenger)
Separate type front seat cushion spring assembly LH Front seatback frame sub-assembly LH Position control ECU assembly	Initialize position control ECU	Front power seat control system

Necessary Procedures After Parts Removed/Installed/Replaced (for HV Model)

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed
*: When performing learning using the Techstream. Click here
Disconnect cable from negative auxiliary battery terminal	Perform steering sensor zero point calibration	Lane tracing assist system
		Pre-collision system
		Intelligent clearance sonar system*
		Lighting system (for HV Model with Cornering Light)
	Memorize steering angle neutral point	Parking assist monitor system
	Memorize steering angle neutral point	Panoramic view monitor system
Occupant detection ECU Front passenger seat	Zero point calibration (Occupant classification system)	Occupant classification system Passenger airbag ON/OFF indicator Airbag system (Front passenger side) Seat belt warning system (Front passenger)
Separate type front seat cushion spring assembly LH Front seatback frame sub-assembly LH Position control ECU assembly	Initialize position control ECU	Front power seat control system

CAUTION:

Be sure to read Precaution thoroughly before servicing.
for Gasoline Model: Click here

for HV Model: Click here
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 FRONT SEAT ASSEMBLY

Click here

2. DISCONNECT SEPARATE TYPE FRONT SEATBACK COVER

Click here

3. REMOVE FRONT SEAT FRONT CUSHION SHIELD

Click here

4. REMOVE FRONT SEAT CUSHION SHIELD

Click here

5. REMOVE FRONT SEAT INNER CUSHION SHIELD

Click here

6. REMOVE SEPARATE TYPE FRONT SEATBACK ASSEMBLY

Click here

7. REMOVE FRONT SEAT HEADREST SUPPORT

Click here

8. REMOVE SEPARATE TYPE FRONT SEATBACK COVER WITH PAD

Click here

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

Click here

10. REMOVE LUMBAR SUPPORT ADJUSTER ASSEMBLY

(a) w/o Climate Control Seat System:

(1) Disengage the clamp and disconnect the connector.

HINT:

Disengage the clamp first.

(2) Disengage the 8 hooks to remove the lumbar support adjuster assembly.

(b) w/ Climate Control Seat System:

(1) Disengage the 3 clamps and disconnect the 2 connectors.

HINT:

Disengage the 3 clamps first.

(2) Disengage the 2 claws.

(3) Disengage the 2 guides to remove the lumbar support adjuster assembly as shown in the illustration.

Remove in this Direction

11. REMOVE FRONT NO. 2 SEATBACK HOOK

Click here