Brakes - Squeak Noise When Pressing/Releasing Pedal

BRAKES
BR001-07

Title:
BRAKE ACTUATOR NOISE

Models:
'04 - '07 Prius

February 27, 2007

Introduction

Some 2004-2007 model year Prius vehicles may exhibit a squeak-type noise when pressing or releasing the brake pedal. This noise may only be audible when the vehicle is in "READY" mode and the vehicle is not moving. Brake system performance is not affected by this noise. Use the following procedure to address this concern.

Applicable Vehicles

^ 2004 - 2007 model year Prius vehicles.





Parts Information





Warranty Information

Applicable Warranty*:
This repair is covered under the Toyota Comprehensive Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle's in-service date.

* Warranty application is limited to correction of a problem based upon a customer's specific complaint.





Required SSTs

Repair Procedure

1. Confirm noise condition by pressing/releasing the brake pedal.

2. Bleed the brake system.

Refer to the Technical Information System (TIS):

^ 2004 or 2005 model year Prius Repair Manual, Brake - Brake System - "Brake Fluid: Bleeding".

^ 2006 or 2007 model year Prius Repair Manual, Brake - System - "Brake: Brake Fluid: Bleeding".

If the noise is NO longer present when pressing/releasing the brake pedal, the repair is complete.

If the noise is still present, go to step 3.

3. If the noise is still present, replace the Brake Actuator Assembly.

Refer to TIS:

^ 2004 or 2005 model year Prius Repair Manual, Brake - Brake Control/Dynamic Control System - "Brake Actuator ASSY: Replacement".

^ 2006 or 2007 model year Prius Repair Manual, Brake - Brake Control/Dynamic Control System - "Brake Control: Brake Actuator: Replacement

4. Road test for proper operation.