Brakes - Front Brake Squeak On Low Speed Stops

L-SB-0016-13

March 18, 2013

Front Brake Squeak Noise

Service Category
Brake

Section
Brake (front)

Market
USA





Applicability

Introduction

Some 2013 model year GS 350 F-Sport Package vehicles may exhibit squeak noise from the front brakes after an overnight cold soak. Noise is heard especially when driving at low speeds (0 - 15 mph) and coming to a stop. New front brake pads are available to address this condition.

Production Change Information





This bulletin applies to vehicles produced BEFORE the Production Change Effective VIN shown.





Parts Information





Warranty Information

Repair Procedure

1. Conduct a road test to verify the front brake squeak. Noise is usually heard after an overnight cold soak and especially when driving at low speeds (0 - 15 mph) and coming to a stop.

2. Machine both front discs with an on-car lathe to minimize run-out. Make sure that the discs are within minimum thickness.

Using a micrometer measure the disc thickness. If the disc thickness is less than the minimum replace the disc.

Standard Thickness: 30.0 mm (1.18 in.) Minimum Thickness: 27.0 mm (1.06 in.)

3. Replace the front brake pads with the new pad kit. Visually inspect the shims for heat discoloration. If discolored replace the shims.

Refer to the Technical Information System (TIS) applicable model and model year Repair Manual:

^ 2013 GS 350:
Brake - Brake (Front) - "Brake (Front): Front Brake (for 18 inch Front Disc Brake):
Removal / Installation"

4. Road test the vehicle to confirm proper operation.

© 2013 Lexus, a division of Toyota Motor Sales, USA