Installation [12/2021 - ]: 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.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   for Steel Steering Knuckle 

   Torque: 107 N.m (1091 kgf/cm, 79 ft.lbf) 

   for Aluminum Steering Knuckle 

   Torque: 150 N.m (1530 kgf/cm, 111 ft.lbf) 

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Lithium Soap Base Glycol Grease

2. Install a new front disc brake cylinder slide bushing to the front disc brake cylinder slide pin (lower side).
3. Apply a thin 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 [12/2021 - 11/2024] , or refer to PROCEDURE - Step 1 [11/2024 - ]

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 pad wear indicator plate is mounted on the upper side of the vehicle.

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: 34.3 N.m (350 kgf/cm, 25 ft.lbf) 

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

   Refer to PROCEDURE - Step 2

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

      Refer to DTC CHECK / CLEAR [12/2021 - ]

• w/ Vacuum Brake Booster: Refer to BLEEDING [11/2018 - ]
• w/o Vacuum Brake Booster: Refer to BLEEDING [12/2021 - ]

Refer to INSTALLATION [11/2018 - ]