Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Operation Method

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Brake / Parking Brake / Forced Release / Operation Method

OPERATION METHOD

PROCEDURE

1. PRECAUTION

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2. 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 except the connector shown in the illustration.
  • If the engine switch is turned on (IG) or the engine is started with the connector 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 engine switch off and chock the wheels.

(3) Remove the front door scuff plate LH.

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(4) Remove the rear door scuff plate LH. (w/o Rear No. 2 Seat)

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(5) Remove the rear door scuff plate LH. (w/ Rear No. 2 Seat)

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(6) Remove the rear door inside scuff plate LH. (w/ Rear No. 2 Seat)

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(7) Remove the lower center pillar garnish LH.

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(8) Remove the front door scuff plate RH.

HINT:

Use the same procedure as for the LH side.

(9) Remove the rear door scuff plate RH. (w/o Rear No. 2 Seat)

HINT:

Use the same procedure as for the LH side.

(10) Remove the rear door scuff plate RH. (w/ Rear No. 2 Seat)

HINT:

Use the same procedure as for the LH side.

(11) Remove the rear door inside scuff plate RH. (w/ Rear No. 2 Seat)

HINT:

Use the same procedure as for the LH side.

(12) Remove the lower center pillar garnish RH.

HINT:

Use the same procedure as for the LH side.

(13) Disconnect the connector shown in the illustration.

(14) Connect SST (09756-48020) to SST (09756-48060).

SST: 09756-48020

SST: 09756-48060

*a

Brake Pedal

*b

Battery

*c

SST(09756-48020)

*d

SST(09756-48060)

*e

Release Button

*f

FINISHED Light

Connector

-

-

(15) Connect SST (09756-48060) to the connector inside of the vehicle.

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

(17) 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 with the brake pedal depressed.
  • The parking brake may not release if the battery voltage is too low. In this case, perform the release operation again using a fully charged or new battery.

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

(19) 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 connector is 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 engine switch off and check that the wheels are chocked.

(3) Check that the front door scuff plate LH has been removed.

(4) Check that the rear door scuff plate LH has been removed. (w/o Rear No. 2 Seat)

(5) Check that the rear door scuff plate LH has been removed. (w/ Rear No. 2 Seat)

(6) Check that the rear door inside scuff plate LH has been removed. (w/ Rear No. 2 Seat)

(7) Check that the lower center pillar garnish LH has been removed.

(8) Check that the front door scuff plate RH has been removed.

(9) Check that the rear door scuff plate RH has been removed. (w/o Rear No. 2 Seat)

(10) Check that the rear door scuff plate RH has been removed. (w/ Rear No. 2 Seat)

(11) Check that the rear door inside scuff plate RH has been removed. (w/ Rear No. 2 Seat)

(12) Check that the lower center pillar garnish RH has been removed.

(13) Check that the connector shown in the illustration has been disconnected.

(14) Remove the rear wheel.

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CAUTION:

When using a jack, do not work on a vehicle supported only by jacks. Make sure to use safety stands.

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

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

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(17) Insert a 6 mm hexagon wrench into the rear disc brake cylinder assembly LH.

(18) Turn the 6 mm hexagon wrench 2 turns clockwise to release the parking brake lock.

NOTICE:

  • When moving the vehicle after releasing the parking brake, install all parts except the connector shown in the illustration.
  • The brake warning light (yellow) will illuminate when the vehicle is moved after releasing the parking brake.
    Forced Release
    ...

    Parking Brake System
    PrecautionPRECAUTION NOTICE: If the battery is connected, the parking brake will operate when the electric parking brake switch assembly is pulled to the lock side even if the engine switch is off, ...

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