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Replacement [12/2019 - ]: Procedure

  1. REPLACE BRAKE FLUID (When Using the GTS) 
    1. Fill the reservoir with brake fluid.
      1. Remove the brake master cylinder reservoir filler cap assembly.
        GTY912146Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Add brake fluid to the reservoir until the fluid level is between the MAX and MIN lines on the brake fluid reservoir.

        Brake Fluid

        SAE J1703 or FMVSS No. 116 DOT3

        SAE J1704 or FMVSS No. 116 DOT4

    2. Turn the ignition switch to ON.
    3. Replace the brake fluid.
      1. Replace the brake fluid following the instructions on the GTS.

        Chassis > Brake/EPB > Utility 

        Tester Display
        Brake Line Air Bleeding

        HINT: 

        When the brake pedal is released, the piston inside the master cylinder may take longer than the brake pedal to return to its original position. Therefore, make sure to wait for 1 second or more between each depression of the brake pedal.

      2. After replacing brake fluid, tighten each bleeder plug.

        Torque: 8.3 N.m (85 kgf/cm, 73 in.lbf) 

    4. Install the brake master cylinder reservoir filler cap assembly.
    5. Clear the DTCs.

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

    6. Turn the ignition switch off.
    7. Inspect for brake fluid leaks.
  2. REPLACE BRAKE FLUID (When Not Using the GTS) 
    NOTE:
    • Performing the following procedure enters ECB (Electronically Controlled Brake system) Deactivate Mode without using the GTS.
    • ECB (Electronically Controlled Brake system) Deactivate Mode allows the brake fluid to be replaced without using the GTS.
    • The brake warning light blinks (yellow) to indicate that ECB (Electronically Controlled Brake system) Deactivate Mode is selected.
    • Be sure to confirm that the brake warning light is blinking (yellow) throughout the brake fluid replacement procedure.
    • If any of the following conditions are met, ECB (Electronically Controlled Brake system) Deactivate Mode is canceled and the brake warning light (yellow) turns off. Do not allow ECB (Electronically Controlled Brake system) Deactivate Mode to be canceled while replacing brake fluid or DTCs may be stored.
      The shift lever is moved from P to any other position.
      The ignition switch is turned to ON (READY).
      The ignition switch is turned off.
      The parking brake is released.
      The vehicle speed is more than 0 km/h (0 mph).
    • Do not rotate any brake disc while ECB (Electronically Controlled Brake system) Deactivate Mode is selected.
    • Although the brake warning light will blink (yellow) and a buzzer will sound while performing fluid replacement, this is not a malfunction.
    1. Remove all 4 wheels.

      Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - ] 

    2. Enter ECB (Electronically Controlled Brake system) Deactivate Mode.
      1. Perform the procedure listed below within 1 minute.
        1. Turn the ignition switch to ON with the shift lever in P and parking brake applied.
        2. Move the shift lever to N and then depress the brake pedal more than 8 times within 5 seconds.
        3. Move the shift lever to P and then depress the brake pedal more than 8 times within 5 seconds.
        4. Move the shift lever to N and then depress the brake pedal more than 8 times within 5 seconds.
        5. Move the shift lever to P.
      2. Check that the brake warning light is blinking (yellow).
        GTY454345Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Brake Warning Light (Yellow)
    3. Fill the reservoir with brake fluid.
      1. Remove the brake master cylinder reservoir filler cap assembly.
        GTY912146Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Add brake fluid to the reservoir until the fluid level is between the MAX and MIN lines on the brake fluid reservoir.

        Brake Fluid

        SAE J1703 or FMVSS No. 116 DOT3

        SAE J1704 or FMVSS No. 116 DOT4

    4. Replace the brake fluid.

      HINT: 

      When replacing the brake fluid using vacuum, the brake fluid bottle can be inverted and placed on the reservoir filler opening.

      1. Connect a vinyl tube to the bleeder plug of the front disc brake cylinder assembly RH.
      2. Loosen the bleeder plug and then depress the brake pedal several times at approximately 1-second intervals to drain the brake fluid from the bleeder plug of the front disc brake cylinder assembly RH until the new brake fluid comes out.
      3. After draining the fluid, tighten the bleeder plug with the brake pedal depressed.

        Torque: 8.3 N.m (85 kgf/cm, 73 in.lbf) 

      4. Depress the brake pedal several times at approximately 1-second intervals and loosen the bleeder plug of the front disc brake cylinder assembly RH with the brake pedal depressed. *1
      5. At the point where the brake fluid stops coming out, tighten the bleeder plug and release the brake pedal for 1 second or longer. *2

        Torque: 8.3 N.m (85 kgf/cm, 73 in.lbf) 

        HINT: 

        When the brake pedal is released, the piston inside the master cylinder may take longer than the brake pedal to return to its original position. Therefore, make sure to wait for 1 second or more between each depression of the brake pedal.

      6. Repeat *1 and *2 until no air remains in the brake fluid.
        NOTE:

        To prevent air from entering, be sure to perform operations *1 and *2.

      7. Replace brake fluid from the front disc brake cylinder assembly LH using the same procedure as for the RH side.
      8. Connect a vinyl tube to the bleeder plug of the rear disc brake cylinder assembly LH.
      9. Loosen the bleeder plug and then depress the brake pedal several times at approximately 1-second intervals to drain the brake fluid from the bleeder plug of the rear disc brake cylinder assembly LH until the new brake fluid comes out.
      10. After draining the fluid, tighten the bleeder plug with the brake pedal depressed.

        Torque: 8.3 N.m (85 kgf/cm, 73 in.lbf) 

      11. Depress the brake pedal several times at approximately 1-second intervals and loosen the bleeder plug of the rear disc brake cylinder assembly LH with the brake pedal depressed. *3
      12. At the point where the brake fluid stops coming out, tighten the bleeder plug and release the brake pedal for 1 second or longer. *4

        HINT: 

        When the brake pedal is released, the piston inside the master cylinder may take longer than the brake pedal to return to its original position. Therefore, make sure to wait for 1 second or more between each depression of the brake pedal.

      13. Repeat *3 and *4 until no air remains in the brake fluid.
        NOTE:

        To prevent air from entering, be sure to perform operations *3 and *4.

      14. Tighten the bleeder plug completely.

        Torque: 8.3 N.m (85 kgf/cm, 73 in.lbf) 

      15. Replace brake fluid from the rear disc brake cylinder assembly RH using the same procedure as for the LH side.
      16. Turn the ignition switch off.
    5. Inspect for brake fluid leaks.
    6. Adjust the brake fluid level in the reservoir.

      Refer to PROCEDURE - Step 2

    7. Install the brake master cylinder reservoir filler cap assembly.
    8. Install all 4 wheels.

      Refer to INSTALLATION [12/2019 - 10/2022] , or refer to INSTALLATION [10/2022 - ] 

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