LS 460 V8-4.6L (1UR-FSE) (2007)
Hydraulic Control Assembly - Antilock Brakes: All Technical Service Bulletins
ABS/TCS - Knock/Click When Brake Pedal Is Depressed
L-SB-0178-09
December 2, 2009
Brake Actuator Knock Noise
Service Category
Brake
Section
Brake Control/Dynamic Control System
Market
USA
Applicability
Introduction
Some LS 460/460L and LS 600h vehicles may exhibit a knocking and/or clicking type noise from the brake actuator during light brake application when
coming to a stop or when depressing the brake pedal while the vehicle is stopped. An improved brake actuator has been introduced to correct this
condition.
Refer to the video link below for an example of the knock/click noise condition:
LS Brake Knock/Click Noise Example
Warranty Information
APPLICABLE WARRANTY
^ 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.