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T-SB-0307-08
Brake Actuator Noise
Applicability
| YEAR(S) | MODEL(S) | ADDITIONAL INFORMATION |
|---|---|---|
| 2004 – 2007 | Prius |
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.
Parts Information
| PREVIOUS PART NUMBER | CURRENT PART NUMBER | MODEL YEAR | PART NAME | QTY |
|---|---|---|---|---|
| 44500-47090 | Same | 2004 – 2005 | Actuator Assembly, Brake | 1 |
| 44500-47140 | 2006 – 2007 | 1 | ||
| SAE J1703 or FMVSS No. 116 DOT3 | – | Brake Fluid | As Needed |
Required Tools & Equipment
| REQUIRED EQUIPMENT | SUPPLIER | PART NUMBER | QTY |
|---|---|---|---|
| TIS Techstream*
NOTE: Software version 4.00.017 or later is required. | ADE | TSPKG1 | 1 |
Repair Procedure
- Confirm noise condition by pressing/releasing the brake pedal.
- Bleed the brake system.
Refer to the Technical Information System (TIS), applicable model year Prius Repair Manual:
- 2004 / 2005 Prius: Brake – Brake System – “Brake Fluid: Bleeding”
- 2006 / 2007 Prius: Brake – 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.
- If the noise is still present, replace the Brake Actuator Assembly.
Refer to TIS, applicable model year Prius Repair Manual:
- 2004 / 2005 Prius: Brake – Brake Control/Dynamic Control System – “Brake Actuator ASSY: Replacement”
- 2006 / 2007 Prius: Brake – Brake Control/Dynamic Control System – “Brake Control: Brake Actuator: Replacement”
- Road test for proper operation.
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