Installation [12/2019 - ]: Procedure

1. Align the matchmarks of the front disc and front axle hub sub-assembly, and install the front disc.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a

   Matchmark

   NOTE:

   When replacing the front disc with a new one, select the installation position where the front disc has minimal runout.

1. Install the front disc brake cylinder mounting to the steering knuckle with the 2 bolts.

   Torque: 192 N.m (1958 kgf/cm, 142 ft.lbf) 

1. Apply a light layer of lithium soap base glycol grease to the entire circumference of 2 new front disc brake bushing dust boots.

   HINT: 

   Apply more than 0.3 g (0.01 oz) of lithium soap base glycol grease to each front disc brake bushing dust boot.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Lithium Soap Base Glycol Grease

2. Install the 2 front disc brake bushing dust boots to the front disc brake cylinder mounting.

1. Apply a light layer of lithium soap base glycol grease to the contact surface of the front disc brake cylinder slide pin (lower side) and a new front disc brake cylinder slide bushing.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Lithium Soap Base Glycol Grease

2. Install the front disc brake cylinder slide bushing to the front disc brake cylinder slide pin (lower side).
3. Apply a light layer of lithium soap base glycol grease to the sliding part and the sealing surfaces of the 2 front disc brake cylinder slide pins.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Lithium Soap Base Glycol Grease

4. Install the 2 front disc brake cylinder slide pins to the front disc brake cylinder mounting.
5. Push each front disc brake cylinder slide pin into the front disc brake bushing dust boot to engage the pin to the boot.

1. Install the 4 front disc brake pad support plates to the front disc brake cylinder mounting.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NOTE:

   Be sure to install each front disc brake pad support plate in the correct position and direction.

Refer to PROCEDURE - Step 1

1. Install the 2 front disc brake pads to the front disc brake cylinder mounting.
   NOTE:

   • Keep the friction surfaces of the front disc brake pads and front disc free from oil and grease.
   • Install the front disc brake pad so that the front disc brake pad wear indicator plate is mounted on the upper side of the vehicle.
2. Install the 2 anti-squeal springs to the front disc brake pads.
   NOTE:

   • When replacing the front disc brake pads with new ones, make sure to replace the anti-squeal springs at the same time.
   • Be sure to install the anti-squeal springs into the front disc brake pad installation holes as far as they will go.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Hold each front disc brake cylinder slide pin and install the front disc brake cylinder assembly to the front disc brake cylinder mounting with the 2 bolts.

   Torque: 45 N.m (459 kgf/cm, 33 ft.lbf) 

   NOTE:

   • Install the front disc brake cylinder assembly while holding both of the front disc brake pads because the anti-squeal springs may fall off the front disc brake pads.
   • Be sure that the anti-squeal springs are installed to the front disc brake pads.

1. Connect the front flexible hose to the front disc brake cylinder assembly with a new union bolt and a new gasket.

   Torque: 29.4 N.m (300 kgf/cm, 22 ft.lbf) 

   NOTE:

   Install the front flexible hose lock securely into the lock hole in the front disc brake cylinder assembly.

1. Connect the reservoir level switch connector.
2. Install the brake master cylinder reservoir assembly to the reservoir bracket with the bolt and nut.

   Torque: 9.0 N.m (92 kgf/cm, 80 in.lbf) 

3. Engage the clamp to install the wire harness to the brake master cylinder reservoir assembly.
4. Connect the cable to the negative (-) auxiliary battery terminal.

   Refer to PROCEDURE - Step 2 [12/2019 - 11/2023] , or refer to PROCEDURE - Step 2 [11/2023 - ]

5. Perform the following procedure if air bleeding is not necessary:
   1. Turn the ignition switch to ON (READY).
   2. Depress the brake pedal and release it.
   3. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [12/2019 - ]

for HV Model: Refer to BLEEDING [12/2019 - ]

for Gasoline Model: Refer to BLEEDING [12/2019 - 10/2022] , or refer to BLEEDING [10/2022 - ]

Refer to PROCEDURE - Step 1 [12/2019 - 10/2022] , or refer to PROCEDURE - Step 1 [10/2022 - ]