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I tried to upload the PDF but this forum has a ridiculously small limit for them. Google: L-SB-0044-10.pdf which describes the issue if you want to know more about it.

I just had my car in for this and they replaced both the pads and shims. After bedding them, the squeak has returned. It happens from about 10mph-0 on light deceleration - basically when crawling in traffic, which happens 50% of the time I'm in the car. It's really annoying and is going back to the dealer later this week for additional troubleshooting.

My RS 4 did this with Brembos as well, but a few stomps on the pedal at freeway speeds solved the issue. So far, no go with the IS F.

July 2, 2010

Rear Brake Squeak
Service Category

Brake (rear)




Some 2008 - 2010 model year IS-F vehicles may exhibit a squeal or squeak noise from the rear of the vehicle when lightly applying the brakes. A new rear brake pad kit has been made available to address this condition.

Warranty Information

^ This repair is covered under the Lexus Comprehensive Warranty. This warranty is in effect for 48 months or 50,000 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. Conduct a road test to verify the noise condition. Noise usually occurs during stops with light pressure applied to the brake pedal.

2. Remove and replace the rear brake pads and anti-squeal shims with the updated parts.

For complete removal procedures refer to the Technical Information System (TIS) applicable model year IS-F Repair Manual:
^ 2008 / 2009 / 2010 IS-F:

Brake - Brake (rear) - "Brake (Rear): Rear Brake: Removal"

For complete installation procedures refer to TIS applicable model year IS-F Repair Manual:
^ 2008 / 2009 / 2010 IS-F:

Brake - Brake (rear) - "Brake (Rear): Rear Brake: Installation"

^ When replacing rear disc brake pads, the anti-squeal shims MUST be replaced together with the pads.

^ When applying grease per the Repair Manual, use the grease enclosed with the rear disc brake pad kit or supplied grease: Part # 90998-94072.

3. Road test the vehicle to confirm the rear brake noise condition is NO longer present.

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