Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001QA45
Model Year Start: 2021 Model: Avalon HV Prod Date Range: [08/2020 - 08/2021]
Title: REAR SUSPENSION: REAR TRAILING ARM: 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 trailing arm 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

Link

Rear wheel alignment adjustment

Perform system variant learning and acceleration sensor zero point calibration.
  • VSC disabled or malfunctioning
  • DTCs are output
  • Slip indicator light illuminated
  • ABS warning light illuminated

2019 - 2021 MY Avalon [04/2018 - 08/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): CALIBRATION

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement.)
  • Measure ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Intelligent Clearance Sonar System
  • Intuitive Parking Assist System

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

Rear television camera assembly optical axis adjustment (Back camera position setting)

Parking Assist Monitor System

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

2019 - 2022 MY Avalon [04/2018 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM (for Gasoline Model): CALIBRATION for Calibration
  • Parking assist ECU initialization
  • Adjust steering angle
  • Television camera assembly optical axis adjustment (Back camera position setting)

Panoramic View Monitor System

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

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

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

Link

Rear wheel alignment adjustment
  1. Clear zero point calibration data.
  2. Perform yaw rate and acceleration sensor zero point calibration.
  • DTCs are stored
  • ABS warning light illuminates
  • Brake warning light / yellow (minor malfunction) illuminates
  • Slip indicator light illuminates
  • VSC disabled or malfunctions

2019 - 2021 MY Avalon HV [04/2018 - 08/2021]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): CALIBRATION

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement.)
  • Measure ultrasonic sensor detection angle
  • Ultrasonic sensor detection angle registration
  • Intelligent Clearance Sonar System
  • Intuitive Parking Assist System

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

Rear television camera assembly optical axis adjustment (Back camera position setting)

Parking Assist Monitor System

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

2019 - 2022 MY Avalon HV [04/2018 -        ]; PARK ASSIST / MONITORING: PARKING ASSIST MONITOR SYSTEM(for HV Model): CALIBRATION for Calibration
  • Parking assist ECU initialization
  • Adjust steering angle
  • Television camera assembly optical axis adjustment (Back camera position setting)

Panoramic View Monitor System

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

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

HINT:

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

PROCEDURE

1. REMOVE REAR WHEEL

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; MAINTENANCE: TIRE AND WHEEL: REMOVAL+

2. REMOVE NO. 2 FLOOR UNDER COVER (for Gasoline Model 2WD)

(a) for LH Side:

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; REAR SUSPENSION: REAR STABILIZER BAR (for 2WD): REMOVAL+

3. REMOVE NO. 1 FLOOR UNDER COVER (for Gasoline Model 2WD)

(a) for RH Side:

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; REAR SUSPENSION: REAR STABILIZER BAR (for 2WD): REMOVAL+

4. REMOVE NO. 2 FLOOR UNDER COVER (for HV Model)

(a) for LH Side:

(1) Remove the bolt and clip (A).

(2) Disengage the 2 grommets (B) and clip (C) to remove the No. 2 floor under cover.

5. REMOVE NO. 1 FLOOR UNDER COVER (for HV Model)

(a) for RH Side:

(1) Remove the bolt and clip (A).

(2) Disengage the 2 grommets (B) to remove the No. 1 floor under cover.

6. REMOVE NO. 2 FLOOR UNDER COVER (for Gasoline Model AWD)

(a) for LH Side:

(1) Remove the bolt and 2 clips (A).

(2) Disengage the 2 grommets (B) and 2 clips (C) to remove the No. 2 floor under cover.

7. REMOVE NO. 1 FLOOR UNDER COVER (for Gasoline Model AWD)

(a) for RH Side:

(1) Remove the bolt and 2 clips (A).

(2) Disengage the 2 grommets (B) and clip (C) to remove the No. 1 floor under cover.

8. SEPARATE NO. 2 PARKING BRAKE WIRE ASSEMBLY (w/o AVS)

(a) Disengage the 2 clamps.

(b) Remove the nut and separate the No. 2 parking brake wire assembly from the rear trailing arm assembly.

9. SEPARATE NO. 2 PARKING BRAKE WIRE ASSEMBLY (w/ AVS)

(a) Disconnect the connector.

(b) Remove the nut and disengage the clamp.

(c) Disengage the clamp.

(d) Remove the nut and separate the No. 2 parking brake wire assembly from the rear trailing arm assembly.

10. REMOVE REAR STABILIZER LINK ASSEMBLY (for 2WD)

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; REAR SUSPENSION: REAR STABILIZER BAR (for 2WD): REMOVAL+

11. REMOVE REAR TRAILING ARM ASSEMBLY

(a) Using a transmission jack and a wooden block, support the rear No. 2 suspension arm assembly.

NOTICE:

  • When jacking up the rear No. 2 suspension arm assembly, be sure to jack it up slowly.
  • Make sure to perform this operation with the vehicle kept as low as possible.

*a

Wooden Block

*b

Transmission Jack

(b) for 2WD:

(1) Remove the 2 bolts and separate the rear trailing arm assembly from the rear axle carrier sub-assembly.

(c) for AWD:

(1) Remove the 3 bolts, nut and separate the rear trailing arm assembly from the rear axle carrier sub-assembly.

(d) Remove the 4 bolts and rear trailing arm assembly.

12. REMOVE REAR SUSPENSION ARM COVER

(a) Secure the rear trailing arm assembly in a vise using aluminum plates.

NOTICE:

Do not overtighten the vise.

(b) Disengage the 4 claws and remove the rear suspension arm cover.

13. REMOVE REAR SUSPENSION ARM BRACKET

(a) Remove the bolt, nut and rear suspension arm bracket from the rear trailing arm assembly.