Canada - Brakes - Brake Pad Clicking Noise
Bulletin2370R
Issue Date
December 29, 2006
Title
BRAKE PAD CLICKING NOISE
Component
BRAKES
Models
'07 LS 460
TSB REVISION NOTICE:
- August 13, 2007: The Introduction has been updated. Applicable Vehicles has been updated. The Production Change Information table has been added. The Warranty Information table has been updated. Steps 2 - 4 of the Repair Procedure have been updated. PLEASE READ ENTIRE TSB.
Previous versions of this TSB should be discarded.
INTRODUCTION:
Some 2007 model year LS 460/460L customers may complain of a "clicking" noise from the front and rear brakes when traveling in reverse and applying light brake pressure or when shifting from drive to reverse.
- LS 460/460L equipped w/18" standard wheel - The front and rear brake pad backing plates have been modified. Install new front and rear brake pads and apply grease to reduce this condition.
- LS 460L equipped w/19" Touring Package wheel option (high friction brake pad) - No changes have been made to the brake pads. Apply grease to reduce this condition.
APPLICABLE VEHICLES:
- 2007 model year LS 460/460L vehicles produced BEFORE the Production Change Effective VINs shown in this TSB.
PRODUCTION CHANGE INFORMATION:
PARTS INFORMATION:
LS 460/460L equipped w/18" Standard Wheel:
LS 460L equipped w/19" Touring Package Wheel Option:
WARRANTY INFORMATION:
REPAIR PROCEDURE:
1. Drive the vehicle to confirm the customer's complaint.
The "clicking" noise is heard while traveling in reverse and applying light brake pressure ON and OFF the pedal or when changing vehicle direction.
2. For LS 460/460L equipped w/18" Standard Wheel:
Remove and replace the front and rear brake pads.
Refer to the ETAS, 2007 model year LS 460 Repair Manual:
- Brake - Brake (front) - "Brake: Front Brake: Removal"
- Brake - Brake (rear) - "Brake: Rear Brake: Removal"
For LS 460L equipped w/19" Touring Package Wheel Option:
Remove the front and rear brake pads and clean ONLY.
3. For all LS 460/460L vehicles: After cleaning the shims and calipers, apply a light film of the Disc Brake Caliper Grease to the front brake pads, calipers, and shims in the areas shown in the illustration using your fingertip.
4. For all LS 460/460L vehicles: After cleaning the shims and calipers, apply a light film of the Disc Brake Caliper Grease to the rear brake pads and calipers in the areas shown in the illustration using your fingertip.
5. Reinstall the front and rear brake pads into the caliper assemblies.
Refer to ETAS, 2007 model year LS 460 Repair Manual:
- Brake: Brake (front): Brake: Front Brake: Installation
- Brake: Brake (rear): Brake: Rear Brake: Installation
6. Road test the vehicle to confirm the front and rear brake "clicking" noise has been reduced.
NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.