brake sensor Lexus IS300 2005 Basic Functions / LEXUS 2005 IS300 OWNER'S MANUAL (OM53489U)

IMPORTANT INFORMATION ABOUT YOUR LEXUS
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Event data recorder
Your vehicle has computers that monitor and control certain
aspects of your vehicle. These computers assist in driving and
maintaining optimal vehicle performance. Besides storing data
useful for troubleshooting, there is a system to record data in
a crash or a near car crash event. This is called an Event Data
Recorder (EDR).
The SRS airbag sensor assembly contains the EDR. In a crash
or a near car crash event, this device records some or all of the
following information:

Engine speed

Whether the brake pedal was applied or not

Vehicle speed

To what extent the accelerator pedal was depressed

Position of the transmission selector lever

Whether the driver and front passenger wore the seat belts
or not

Driver's seat position

Front passenger's occupant classification

SRS airbag deployment data

SRS airbag system diagnostic data
The information above is intended to be used for the purpose
of improving vehicle safety performance. Unlike general data
recorders, the EDR does not record sound data such as
conversation between passengers. Lexus will not disclose the data recorded in an EDR to a third
party except when:


An agreement from the vehicle's owner (or the leasing
company for a leased vehicle) is obtained

Officially requested by the police or other authorities

Used as a defense for Lexus in a law suit

Ordered by the court
However, if necessary Lexus will:

Use the data for research on Lexus vehicle safety
performance

Disclose the data to a third party for research purposes
without disclosing details of the vehicle owner, and only when it is deemed necessary

Disclose summarized data cleared of vehicle identification
information to a non±Lexus organization for research
purposes
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STARTING AND DRIVING
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You may hear the anti±lock brake system operating and feel
the brake pedal pulsating and the vibrations of the vehicle
body and steering wheel. You may also hear the motor
sound in the engine compartment even after the vehicle is stopped.
 At the end of the anti±lock brake system activation, the
brake pedal may move a little forward.
CAUTION
Do not overestimate the anti±lock brake system:
Although the anti±lock brake system assists in
providing vehicle control, it is still important to drive
with all due care and maintain a moderate speed and
safe distance from the vehicle in front of you, because
there are limits to the vehicle stability and effectiveness
of steering wheel operation even with the anti±lock
brake system on.
If tire grip performance exceeds its capability, or if
hydroplaning occurs during high speed driving in the
rain, the anti±lock brake system does not provide
vehicle control.
Anti±lock brake system is not designed to shorten the
stopping distance: Always drive at a moderate speed
and maintain a safe distance from the vehicle in front of
you. Compared with vehicles without an anti±lock brake
system, your vehicle may require a longer stopping
distance in the following cases:
 Driving on rough, gravel or snow±covered roads.
 Driving with tire chains installed.
 Driving over the steps such as the joints on the road.
 Driving on roads where the road surface is pitted or
has other differences in surface height.
Install all 4 tires of specified size at appropriate
pressure: The anti±lock brake system detects vehicle
speeds using the speed sensors for respective wheels'
turning speeds. The use of tires other than specified
may fail to detect the accurate turning speed resulting
in a longer stopping distance.
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