Brakes - Rattle/Buzz From Driver's Side Of Dash

T-SB-0229-09

July 27, 2009

Brake Booster Rattle/Buzz Noise

Service Category
Brake

Section
Brake System

Market
USA





Applicability

Introduction

Some Toyota vehicles may exhibit a rattle or buzz type noise coming from the driver's instrument panel area. The noise can be duplicated when lightly accelerating and then decelerating, or when depressing the brake pedal with the shift lever in Park and then releasing brake pedal. An updated vacuum check valve is now available to reduce this noise.





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 occurrence of the specified condition described in this bulletin.

Repair Procedure





1. Confirm the noise is coming from the brake booster vacuum check valve.

2. Remove the vacuum tube clip from the brake booster check valve and disconnect tube.

3. Remove and replace the brake booster vacuum check valve.

NOTE

Make sure NEW valve is fully seated into brake booster grommet and returned to original condition.

4. Reconnect vacuum tube to the brake booster check valve and secure with clip.

5. Confirm no vacuum leaks.

6. Confirm the noise has been eliminated.