Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001PZXW
Model Year Start: 2021 Model: Avalon HV Prod Date Range: [08/2020 - 08/2021]
Title: SEAT: REAR SEAT ASSEMBLY: REMOVAL; 2021 MY Avalon Avalon HV [08/2020 - 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 rear seat assembly removal/installation are shown below.

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

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function When Necessary Procedures are not Performed

Link
*: When performing learning using the Techstream.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM (for Gasoline Model): CALIBRATION

Disconnect cable from negative battery terminal

Perform steering sensor zero point calibration

Lane departure alert system (w/ Steering Control)

2019 - 2021 MY Avalon [04/2018 - 08/2021]; PRE-COLLISION: PRE-COLLISION SYSTEM (for Gasoline Model): INITIALIZATION

Pre-collision system

Intelligent clearance sonar system*

Lighting system (for Gasoline Model with Cornering Light)

Memorize steering angle neutral point

Parking assist monitor system

2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM (for Gasoline Model): INITIALIZATION

Panoramic view monitor system

2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for Gasoline Model): INITIALIZATION

CAUTION:

  • Wear protective gloves. Sharp areas on the parts may injure your hands.
  • Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing.

    Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for HV Model): PRECAUTION

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

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function When Necessary Procedures are not Performed

Link
*: When performing learning using the Techstream.

Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: INTELLIGENT CLEARANCE SONAR SYSTEM (for HV Model): CALIBRATION

Disconnect cable from negative auxiliary battery terminal

Perform steering sensor zero point calibration

Lane departure alert system (w/ Steering Control)

2019 - 2021 MY Avalon HV [04/2018 - 08/2021]; PRE-COLLISION: PRE-COLLISION SYSTEM (for HV Model): INITIALIZATION

Pre-collision system

Intelligent clearance sonar system*

Lighting system (for HV Model with Cornering Light)

Memorize steering angle neutral point

Parking assist monitor system

2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM(for HV Model): INITIALIZATION

Panoramic view monitor system

2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: PANORAMIC VIEW MONITOR SYSTEM (for HV Model): INITIALIZATION

CAUTION:

  • Wear protective gloves. Sharp areas on the parts may injure your hands.
  • Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing.

    Click here 2021 - 2022 MY Avalon [08/2020 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for Gasoline Model): PRECAUTION

PROCEDURE

1. PRECAUTION

NOTICE:

After turning the engine switch (for Gasoline Model) or power switch (for HV Model) off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: REPAIR INSTRUCTION: PRECAUTION

2. REMOVE LUGGAGE TRIM SERVICE HOLE COVER (for HV Model)

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; MAINTENANCE: A25A-FXS AUXILIARY BATTERY: REMOVAL+

3. REMOVE SPARE WHEEL COVER ASSEMBLY (w/ Seat Heater System)

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; DOOR / HATCH: LUGGAGE COMPARTMENT DOOR SUPPORT: REMOVAL+

4. REMOVE LUGGAGE COMPARTMENT INNER TRIM PAD (w/ Seat Heater System)

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; DOOR / HATCH: LUGGAGE COMPARTMENT DOOR SUPPORT: REMOVAL+

5. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

for A25A-FXS:

Click here 2020 - 2021 MY Avalon HV [08/2019 - 08/2021]; MAINTENANCE: A25A-FXS AUXILIARY BATTERY: REMOVAL+

for 2GR-FKS:

Click here 2019 - 2021 MY Avalon [04/2018 - 08/2021]; MAINTENANCE: 2GR-FKS BATTERY: REMOVAL+

for A25A-FKS:

Click here 2021 - 2022 MY Avalon [08/2020 -        ]; MAINTENANCE: A25A-FKS BATTERY: REMOVAL+

CAUTION:

  • Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.
  • If an airbag deploys for any reason, it may cause a serious injury.

6. REMOVE REAR SEAT HEADREST ASSEMBLY

(a) Remove the 2 rear seat headrest assemblies.

7. DISCONNECT REAR CENTER SEAT OUTER BELT ASSEMBLY

(a) Using a screwdriver with its tip wrapped with protective tape, disconnect the rear center seat outer belt assembly as shown in the illustration.

*a

Protective Tape

Insert Screwdriver Here

8. REMOVE REAR SEAT CUSHION ASSEMBLY

(a) w/ Seat Heater System (for LH Side):

(1) Disconnect the 2 connectors.

(2) Disengage the 2 clamps.

(b) w/ Seat Heater System (for RH Side):

(1) Disconnect the 2 connectors.

(2) Disengage the 2 clamps.

(c) for Gasoline Model 2WD:

(1) Lift the front edge of the rear seat cushion assembly as shown in the illustration and disengage the 2 rear seat cushion frame hooks on the front side of the rear seat cushion assembly from the rear seat cushion lock hooks.

*a

Rear Seat Cushion Frame Hook (Front Side)

*b

Rear Seat Cushion Frame Hook (Rear Side)

Remove in this Direction (1)

Remove in this Direction (2)

NOTICE:

Be sure to hold the parts of the seat cushion assembly directly next to the rear seat cushion frame hooks when lifting it. Lifting a different part of the cushion may deform the rear seat cushion frame.

HINT:

When lifting the rear seat cushion assembly, make sure to hold the area shown in the illustration.

(2) Disengage the 2 rear seat cushion frame hooks on the rear side of the rear seat cushion assembly as shown in the illustration and remove the rear seat cushion assembly.

NOTICE:

Be careful not to damage the vehicle body.

(d) for Gasoline Model AWD:

(1) Lift the front edge of the rear seat cushion assembly as shown in the illustration and disengage the 2 rear seat cushion frame hooks on the front side of the rear seat cushion assembly from the rear seat cushion lock hooks and remove it.

*a

Rear Seat Cushion Frame Hook (Front Side)

Remove in this Direction

NOTICE:

  • Be sure to hold the parts of the seat cushion assembly directly next to the rear seat cushion frame hooks when lifting it. Lifting a different part of the cushion may deform the rear seat cushion frame.
  • Be careful not to damage the vehicle body.

HINT:

When lifting the rear seat cushion assembly, make sure to hold the area shown in the illustration.

(e) for HV Model:

(1) Lift the front edge of the rear seat cushion assembly as shown in the illustration and disengage the 2 rear seat cushion frame hooks on the front side of the rear seat cushion assembly from the rear seat cushion lock hooks.

NOTICE:

Be sure to hold the parts of the seat cushion assembly directly next to the rear seat cushion frame hooks when lifting it. Lifting a different part of the cushion may deform the rear seat cushion frame.

*a

Rear Seat Cushion Frame Hook (Front Side)

*b

Rear Seat Cushion Frame Hook (Rear Side)

Remove in this Direction (1)

Remove in this Direction (2)

HINT:

When lifting the rear seat cushion assembly, make sure to hold the area shown in the illustration.

(2) Disengage the 2 rear seat cushion frame hooks on the rear side of the rear seat cushion assembly as shown in the illustration and remove the rear seat cushion assembly.

NOTICE:

Be careful not to damage the vehicle body.

9. REMOVE REAR SEAT CUSHION LOCK HOOK

(a) Disengage the 2 claws to remove the rear seat cushion lock hook as shown in the illustration.

Remove in this Direction

HINT:

Use the same procedure for the RH side and LH side.

10. REMOVE REAR SEATBACK ASSEMBLY LH

(a) Fold the rear seatback assembly LH forward.

(b) w/ Seat Heater System:

(1) Disengage the clamp.

(c) Disengage the fastener.

Fastener

(d) Remove the 2 bolts.

(e) Disengage the 2 guides and remove the rear seatback assembly LH.

NOTICE:

Be careful not to damage the vehicle body.

11. REMOVE REAR SEATBACK ASSEMBLY RH

(a) Fold the rear seatback assembly RH forward.

(b) w/ Seat Heater System:

(1) Disengage the clamp.

(c) Disengage the fastener.

Fastener

(d) Remove the 2 bolts.

(e) Disengage the 2 guides and remove the rear seatback assembly RH.

NOTICE:

Be careful not to damage the vehicle body.

12. REMOVE REAR SIDE SEATBACK ASSEMBLY LH

(a) Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

NOTICE:

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

Click here 2021 MY Avalon Avalon HV [08/2020 - 08/2021]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

(b) Disconnect the rear side seatback assembly LH connector.

NOTICE:

When disconnecting any airbag connector, take care not to damage the airbag wire harness.

(1) Push down the white housing lock and slide the yellow CPA. (At this time, the connector cannot be disconnected yet.)

*a

White Housing Lock

*b

Yellow CPA

Slide

(2) Push down the white housing lock again and disconnect the connector.

NOTICE:

Do not push down the part (A) shown in the illustration when disconnecting the connector.

(c) Remove the bolt.

Remove in this Direction

(d) Disengage the hook and remove the rear side seatback assembly LH as shown in the illustration.

NOTICE:

Be careful not to damage the vehicle body.

13. REMOVE REAR SIDE SEATBACK ASSEMBLY RH

HINT:

Use the same procedure as for the LH side.