Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001RPS0
Model Year Start: 2021 Model: Avalon HV Prod Date Range: [08/2020 -           ]
Title: SEAT: FRONT SEAT ASSEMBLY: INSTALLATION; 2021 - 2022 MY Avalon Avalon HV [08/2020 -        ]

INSTALLATION

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. INSTALL FRONT SEAT ASSEMBLY

(a) Place the front seat assembly in the cabin.

NOTICE:

Be careful not to damage the vehicle body.

(b) Connect the front seat airbag assembly connector under the front seat assembly.

(1) Before connecting the connector, check that the position of the housing lock is correct as shown in the illustration.

*a

Correct

*b

Incorrect

*c

Yellow CPA

-

-

(2) Be sure to engage the connectors until they are locked (when locking, make sure that a click sound can be heard).

NOTICE:

  • When connecting any airbag connector, take care not to damage the airbag wire harness.
  • When engaged, the white housing lock will slide. Be sure not to hold the white housing lock and upper part of the yellow CPA, as it may result in an insecure connection.

(c) Connect each connector and engage each clamp under the front seat assembly.

(d) Connect the cable to the negative (-) auxiliary battery terminal.

for 2GR-FKS: Click here 2019 - 2022 MY Avalon [04/2018 -        ]; MAINTENANCE: 2GR-FKS BATTERY: INSTALLATION+

for A25A-FXS: Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; MAINTENANCE: A25A-FXS AUXILIARY BATTERY: INSTALLATION+

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

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 2022 MY Avalon Avalon HV [08/2021 -        ]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

(e) Temporarily install the front seat assembly with the 4 bolts.

(f) Operate the slide and vertical power seat switch knob and move the front seat assembly to the rearmost position.

(g) Using a T50 "TORX" socket wrench, tighten the 2 bolts on the front side of the front seat assembly.

Torque:

37 N·m {377 kgf·cm, 27 ft·lbf}

NOTICE:

Tighten the bolts in the order shown in the illustration.

(h) Operate the slide and vertical power seat switch knob and move the front seat assembly to the foremost position.

(i) Using a T50 "TORX" socket wrench, tighten the 2 bolts on the rear side of the front seat assembly.

Torque:

37 N·m {377 kgf·cm, 27 ft·lbf}

NOTICE:

Tighten the bolts in the order shown in the illustration.

2. INSTALL REAR OUTER SEAT TRACK BRACKET COVER

(a) Engage the claw and guide to install the rear outer seat track bracket cover as shown in the illustration.

Install in this Direction

3. INSTALL REAR INNER SEAT TRACK BRACKET COVER

(a) Engage the claw and guide to install the rear inner seat track bracket cover as shown in the illustration.

Install in this Direction

4. INSTALL FRONT OUTER SEAT TRACK BRACKET COVER

(a) Operate the slide and vertical power seat switch knob and move the front seat assembly to the rearmost position.

(b) Engage the claw and guide to install the front outer seat track bracket cover as shown in the illustration.

Install in this Direction

5. INSTALL FRONT INNER SEAT TRACK BRACKET COVER

(a) Engage the claw and guide to install the front inner seat track bracket cover as shown in the illustration.

Install in this Direction

6. INSTALL FRONT SEAT HEADREST ASSEMBLY

(a) Install the front seat headrest assembly to the front seat assembly.

7. INSTALL LUGGAGE TRIM SERVICE HOLE COVER (for HV Model)

Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; MAINTENANCE: A25A-FXS AUXILIARY BATTERY: INSTALLATION+

8. INSPECT FRONT SEAT ASSEMBLY

w/o Seat Position Memory System: Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; SEAT: FRONT POWER SEAT CONTROL SYSTEM(w/o Memory): OPERATION CHECK

for Gasoline Model with Seat Position Memory System: Click here 2019 - 2022 MY Avalon [04/2018 -        ]; SEAT: FRONT POWER SEAT CONTROL SYSTEM (for Gasoline Model with Memory): OPERATION CHECK

for HV Model with Seat Position Memory System: Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; SEAT: FRONT POWER SEAT CONTROL SYSTEM (for HV Model with Memory): OPERATION CHECK

9. CHECK SEAT HEATER

for Gasoline Model: Click here 2019 - 2022 MY Avalon [04/2018 -        ]; SEAT: SEAT HEATER SYSTEM (for Gasoline Model): OPERATION CHECK

for HV Model: Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; SEAT: SEAT HEATER SYSTEM (for HV Model): OPERATION CHECK

10. PERFORM DIAGNOSTIC SYSTEM CHECK

for Gasoline Model: Click here 2019 - 2022 MY Avalon [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

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

11. INITIALIZATION OF SEAT ECU (w/ Seat Position Memory System)

for Gasoline Model: Click here 2019 - 2022 MY Avalon [04/2018 -        ]; SEAT: FRONT POWER SEAT CONTROL SYSTEM (for Gasoline Model with Memory): REGISTRATION+

for HV Model: Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; SEAT: FRONT POWER SEAT CONTROL SYSTEM (for HV Model with Memory): REGISTRATION+

12. INSPECT CLIMATE CONTROL SEAT SYSTEM (w/ Climate Control Seat System)

for Gasoline Model: Click here 2019 - 2022 MY Avalon [04/2018 -        ]; SEAT: CLIMATE CONTROL SEAT SYSTEM (for Gasoline Model): ON-VEHICLE INSPECTION

for HV Model: Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; SEAT: CLIMATE CONTROL SEAT SYSTEM (for HV Model): ON-VEHICLE INSPECTION

13. PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK (for Front Passenger Side)

for Gasoline Model: Click here 2019 - 2022 MY Avalon [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: OCCUPANT CLASSIFICATION SYSTEM (for Gasoline Model): INITIALIZATION

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