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

OPERATION METHOD

PROCEDURE

1. PRECAUTION

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2. REMOVE LUGGAGE TRIM SERVICE HOLE COVER

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3. SEPARATE REAR SEAT CUSHION ASSEMBLY

(a) 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)
	Place Hand Here
	Remove in this Direction (1)
	Remove in this Direction (2)

NOTICE:

Be sure to hold the seat cushion assembly at the position shown in the illustration 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.

(b) Pull the rear seat cushion assembly as shown in the illustration to disengage the 2 rear seat cushion frame hooks on the rear side of the rear seat cushion assembly.

NOTICE:

Be careful not to damage the wire harness.

HINT:

Pull the rear seat cushion assembly until the No. 2 parking brake wire assembly connectors can be seen.

4. REMOVE REAR SEAT CUSHION LOCK HOOK

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5. PARKING BRAKE FORCED RELEASE

CAUTION:

Work on a level surface to ensure safety.

NOTICE:

• To release the parking brake, follow the procedure for when using SST.
• If the parking brake cannot be released, follow the procedure for when not using SST.
• When moving the vehicle after releasing the parking brake, install all parts and do not connect the 2 connectors shown in the illustration.
• If the power switch is on (IG) or the engine is started with the 2 connectors disconnected, a DTC may be stored. Clear any DTCs after performing work.

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(a) When using SST:

(1) Park the vehicle on a level surface and move the shift lever to P.

(2) Turn the power switch off and chock the wheels.

(3) Disconnect the 2 connectors shown in the illustration.

HINT:

If it is difficult to see the 2 connectors shown in the illustration, tilt the rear seatback assembly.

(4) Connect SST (09756-48020) to SST (09756-48070).

SST: 09756-48020

SST: 09756-48070

*a	Brake Pedal	*b	Auxiliary Battery
*c	SST (09756-48020)	*d	SST (09756-48070)
*e	Release Button	*f	Finished Light
	Connector	-	-

(5) Connect SST (09756-48070) to the 2 connectors inside of the vehicle.

(6) Connect SST (09756-48020) to the auxiliary battery from the outside of the vehicle.

(7) Push the release button on SST (09756-48020) with the brake pedal depressed.

CAUTION:

The vehicle may suddenly move when the parking brake is released. Make sure to perform the release operation with the brake pedal depressed.

HINT:

• Confirm that the parking brake is operating by listening for operation sounds.
• If no operation sounds are heard, push the release button on SST (09756-48020) with the brake pedal depressed.
• The parking brake may not release if the auxiliary battery voltage is too low. In this case, perform the release operation again using a fully charged or new auxiliary battery.

(8) When the finished light of SST (09756-48020) illuminates, release the brake pedal.

(9) Move the vehicle forward and rearward to check that the parking brake is released.

CAUTION:

Be careful when performing this operation. The vehicle may suddenly move.

NOTICE:

• When moving the vehicle after releasing the parking brake, check that the 2 connectors are disconnected.
• The brake warning light (yellow) will illuminate when the vehicle is moved after releasing the parking brake.

(b) When not using SST:

NOTICE:

Perform the following procedure only when the parking brake cannot be released using SST.

HINT:

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

(1) Park the vehicle on a level surface and check that the shift lever is in P.

(2) Turn the power switch off and check that the wheels are chocked.

(3) Check that the 2 connectors shown in the illustration have been disconnected.

(4) Remove the rear wheel.

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CAUTION:

When using a jack to lift the vehicle, make sure to support the vehicle using safety stands. Do not work on the vehicle with it supported only by a jack.

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(5) Disconnect the No. 2 parking brake wire assembly connector from the parking brake actuator assembly.

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(6) Remove the parking brake actuator assembly from the rear disc brake cylinder assembly.

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(7) Insert an L-shaped T45 "TORX" wrench into the rear disc brake cylinder assembly.

(8) Turn the L-shaped T45 "TORX" wrench 2 full rotations clockwise to release the parking brake lock.

NOTICE:

• When moving the vehicle after releasing the parking brake, install all parts and do not connect the 2 connectors shown in the illustration.
• The brake warning light (yellow) will illuminate when the vehicle is moved after releasing the parking brake.