Toyota Tundra (2015 year). Manual — part 191

Last Modified: 9-16-2014

6.6 N

Doc ID: RM0000042HW006X

Model Year: 2015

Model: Tundra

Prod Date Range: [08/2014 - ]

Title: BRAKE: BRAKE FLUID: BLEEDING; 2015 MY Tundra [08/2014 - ]

BLEEDING

NOTICE:

Perform fluid replacement with the parking brake applied.
Perform fluid replacement while maintaining the brake fluid level between the MIN/MAX level on the brake
fluid reservoir.
Do not allow brake fluid to contact the vehicle's paint surfaces. If contact occurs, clean it off immediately.
After adding brake fluid, make sure the reservoir is sufficiently full.
When bleeding air, select the suitable procedure listed below.

REPLACED/INSTALLED ITEM

WORK PROCEDURE

Flexible hose (front/rear)

Bleed brake line

Disc brake cylinder assembly (front/rear)

Brake actuator assembly

Bleed brake system

Brake master cylinder sub-assembly

Brake master cylinder reservoir assembly

Brake booster assembly

1. BLEED BRAKE LINE

(a) Bleed brake line

(1) Remove the brake master cylinder reservoir filler cap assembly.

(2) Add brake fluid into the reservoir between MAX and MIN level on the brake fluid reservoir.

Brake fluid:

SAE J1703 or FMVSS No. 116 DOT3

(5) When fluid stops coming out, tighten the bleeder plug, and then release the brake pedal.*2

(6) Repeat *1 and *2 until all the air in the brake fluid is completely bled out and the new brake fluid

comes out.

(7) Tighten the bleeder plug completely.

Torque:

11 N·m {110 kgf·cm, 8ft·lbf}

(8) Replace the brake fluid from the front disc brake cylinder LH using the same procedure as for RH.

(11) When fluid stops coming out, tighten the bleeder plug, and then release the brake pedal.*2

(12) Repeat *1 and *2 until all the air in the brake fluid is completely bled out and the new brake fluid

comes out.

(13) Tighten the bleeder plug completely.

Torque:

BRAKE: BRAKE FLUID: BLEEDING; 2015 MY Tundra [08/2014 - ]

11 N·m {110 kgf·cm, 8ft·lbf}

(14) Replace the brake fluid from the rear disc brake cylinder LH using the same procedure as for RH.

(b) Check and bleed brake system.

(1) If the following malfunction symptoms occur, air may have entered the brake fluid line. Perform the

following air bleed procedures.

Low pedal or spongy pedal.

Brake pedal is depressed firmly but braking is insufficient.

(c) Check and adjust brake fluid level in reservoir

.

2. BLEED BRAKE SYSTEM

(a) Bleed brake master cylinder

HINT:

If the master cylinder has been disassembled or if the reservoir becomes empty, bleed air from the master

cylinder.

(1) Remove the brake master cylinder reservoir filler cap assembly.

(2) Add brake fluid into the reservoir between MAX and MIN level on the brake fluid reservoir.

Brake fluid:

SAE J1703 or FMVSS No. 116 DOT3

(3) Using a union nut wrench, disconnect the 2 brake lines from

the master cylinder.

(4) Slowly depress and hold the brake pedal.

(5) Block the outer holes with your fingers, and release the pedal.

(6) Repeat the 2 previous steps 3 or 4 times.

(7) Using a union nut wrench, connect the 2 brake lines to the master cylinder.

Torque:

20 N·m {199 kgf·cm, 14ft·lbf}

NOTICE:

Use the formula to calculate special torque values for situations where a union nut wrench is combined with

a torque wrench

.

(b) Bleed brake line

(2) Depress the brake pedal several times, and then loosen the bleeder plug with the pedal depressed.*1

(3) When fluid stops coming out, tighten the bleeder plug, and then release the brake pedal.*2

(4) Repeat *1 and *2 until all the air in the brake fluid is completely bled out and the new brake fluid

comes out.

(5) Tighten the bleeder plug completely.

Torque:

11 N·m {110 kgf·cm, 8ft·lbf}

(6) Replace the brake fluid from the front disc brake cylinder LH using the same procedure as for RH.

(9) When fluid stops coming out, tighten the bleeder plug, and then release the brake pedal.*2

(10) Repeat *1 and *2 until all the air in the brake fluid is completely bled out and the new brake fluid

comes out.

(11) Tighten the bleeder plug completely.

Torque:

11 N·m {110 kgf·cm, 8ft·lbf}

(12) Replace the brake fluid from the rear disc brake cylinder LH using the same procedure as for RH.

(c) Bleed VSC actuator assembly

NOTICE:

(1) Depress the brake pedal more than 20 times with the engine off.

(2) Connect the Techstream to the DLC3, and turn the ignition switch on.

NOTICE:

Do not start the engine.

(3) Select AIR BLEEDING on the Techstream.

HINT:

Refer to the Techstream operator's manual for further details.

Perform the bleeding at the right front wheel and right rear wheel.
Bleed the air by following the steps displayed on the Techstream.

1. Connect a vinyl tube to the bleeder plug at the right front wheel or the right rear wheel.

2. Loosen the bleeder plug.

3. Operate the brake actuator to bleed the air using the Techstream.

HINT:

This operation stops automatically after 4 seconds.

NOTICE:

Release the brake pedal at this time.

4. Check if the operation has stopped by referring to the Techstream display.

BRAKE: BRAKE FLUID: BLEEDING; 2015 MY Tundra [08/2014 - ]

5. Temporarily tighten the bleeder plug.

6. Repeat the 4 previous steps until all in the fluid is completely bled out.

7. Tighten the bleeder plug.

Torque:

11 N·m {110 kgf·cm, 8ft·lbf}

NOTICE:

Perform the bleeding at the 4 wheels.
Bleed the air by following the steps displayed on the Techstream.

3. Using the Techstream, operate the brake actuator, completely depress the brake pedal and hold it

there.

HINT:

The operation stops automatically after 4 seconds. When performing this procedure continuously, set an

5. Repeat the 3 previous steps until all air in the fluid is completely bled out.

6. Tighten the bleeder plug.

Torque:

11 N·m {110 kgf·cm, 8ft·lbf}

(6) Clear the DTCs

.

(7) Inspect for brake fluid leak.

(8) Check and adjust brake fluid level in reservoir

.

(9) If any DTC is set, perform the troubleshooting for the DTC

(10) Check the DTC

.

BRAKE: BRAKE FLUID: BLEEDING; 2015 MY Tundra [08/2014 - ]