NOTICE:

• Perform air bleeding with park (P) selected and the parking brake applied.
• Perform air bleeding while maintaining the brake fluid level between the MAX and MIN lines on the brake fluid reservoir.
• If the brake fluid reservoir becomes empty, air will enter the hose and brake booster with accumulator pump assembly*1 or brake booster pump assembly*2 and it may become difficult to replace brake fluid.
• When performing air bleeding, the accumulator pressure drop may cause a buzzer to sound. As this is not a malfunction, continue with the air bleeding procedure.
• If air bleeding is performed, a C145100, C145151, C125600 or C125609 DTC may be stored. Clear the DTCs after performing air bleeding or whenever specified by a procedure.
• Make sure to release the parking brake before performing the "Linear Valve Offset Learning" (linear solenoid valve offset learning).
• Do not allow brake fluid to contact any painted surface. If brake fluid leaks onto any painted surface, immediately wash it off.
• When performing air bleeding, do not continuously operate the pump motor for more than 100 seconds. If the pump motor is operated for more than 100 seconds, release the brake pedal to stop operation of the pump in order to prevent damage to the pump motor.
• As brake fluid may overflow from the reservoir when brake fluid is released from the accumulator, do not invert and place the brake fluid bottle on the reservoir filler opening.
• Do not use vacuum to bleed air from the brake system.

  HINT:

  As the ECB (Electronically Controlled Brake system) contains complicated brake fluid passages, dissolved gases in the brake fluid may form bubbles as the brake fluid pressure decreases.

• When bleeding air, select the suitable procedure according to the table below.

  Replaced/Installed Item	Work Procedure
  Flexible hose (front/rear)	Bleed brake line
  Disc brake cylinder assembly (front/rear)
  Brake booster with accumulator pump assembly	Bleed brake system
  Brake booster with master cylinder assembly
  Brake actuator assembly

NOTICE:

• 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 lines to be bled 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 line bleeding 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 bleeding the brake lines or DTCs may be stored.

  A shift state other than park (P) is selected.

  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 (yellow) will blink and a buzzer will sound while performing brake line bleeding, this is not a malfunction.