Tech Tip: Prius Brake Actuator Noise
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Tech Tip: Prius Brake Actuator Noise

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 ….

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Vehicles: 2004 – 2007 Prius

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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.

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

2. Bleed the brake system with a scan tool and the correct repair procedure. 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.

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3. If the noise is still present, replace the Brake Actuator Assembly.
Refer to your source of repair information for the correct procedure.

4. Road test for proper operation.

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Brake & Front End