Lexus ES300 2001 Owner's Manuals (in English)

STARTING AND DRIVING
304
VEHICLE SKID CONTROLSYSTEM
The vehicle skid control system helps provide
comprehensive control of the systems such as an
anti±lock brake system, brake assist system,
traction control, engine control, etc. This system
automatically controls the output of the brakes or
engine to help prevent the vehicle from skidding
when cornering on a slippery road surface or abrupt
steering wheel operation occurs.
31E013±1

Slip indicator light
If the vehicle is going to skid during driving, the slip
indicator light flashes and an alarm sounds
intermittently.
The vehicle skid control activates when the vehicle
speed is about more than 15 km/h (9 mph). You may hear a sound in the engine compartment for a
few seconds when the engine is started or just after the
vehicle is started. This means that the vehicle skid
control is in the self±check mode and does not indicate
a malfunction.

STARTING AND DRIVING
305
31E081
You can turn off the vehicle skid control system by
pushing the ªVSC OFFº switch. The ªVSC OFFº
indicator comes on. At this time, the traction control
system also turns off. You cannot turn off either one
of them. Pushing the ªVSC OFFº switch a second
time turns the system back on and extinguishes the
ªVSC OFFº indicator light.
When you turn the ignition switch on, this system always
turns on.Vehicle skid control system failure
warning
31E047

STARTING AND DRIVING
306These lights warn that there is a problem somewhere in
the vehicle skid control system, traction control system
or brake assist system.
The lights will come on when the ignition key is turned to
ªONº, and will go off after a few seconds.
If the ªVSCº warning light and ªVSC OFFº indicator light
come
on, the vehicle skid control system, traction control
system and brake assist system do not work. However,
as conventional braking operates when applied, there is
no problem to continue your driving.
If either of the following conditions occurs, this indicates
a malfunction somewhere in the parts monitored by the
warning light system. Contact your Lexus dealer as
soon as possible to service the vehicle:
 The ªVSCº warning light and/or ªVSC OFFº indicator
light do/does not come on after the ignition is turned
to on. 
The ªVSCº warning light and ªVSC OFFº indicator
light are left on after the ignition is turned to on.
 The ªVSCº warning light and ªVSC OFFº indicator
light come on while driving without pushing ªVSC
OFFº switch.

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307
CAUTION
Do not rely excessively on the vehicle skid control
system. Even if the vehicle skid control system is
operating, it is not that your vehicle is absolutely
safe. Reckless driving will result in an unexpected
accident. Always keep safety driving in mind. If the
slip indicator light flashes, sounding an alarm,
special care should be taken while driving.
 Only use tires of specified size. The size,
manufacturer, brand and tread pattern for all 4 tires
should be the same. If you use the tires other than
specified, or different type or size, the vehicle skid
control system may not function correctly. When
replacing the tires or wheels, contact your Lexus
dealer.

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308
BRAKE SYSTEM
The tandem master cylinder brake system is a hydraulic
system with two separate sub±systems. If either
sub±system should fail, the other will still work.
However, the pedal will be harder to press, and your
stopping distance will be longer. Also, the brake system
warning light may come on.
CAUTION
Do not drive your vehicle with only a single brake
system. Have your brakes fixed immediately.
Brake booster
The brake booster uses engine vacuum to power±assist
the brakes. If the engine should quit while you are
driving, you can bring the vehicle to a stop with normal
pedal pressure. There is enough reserved vacuum for
one or two stops but no more!

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309
CAUTION
Do not pump the brake pedal if the engine stalls.
Each push on the pedal uses up your reserved
vacuum.
 Even if the power assist is completely lost, the brakes
will still work. But you will have to push the pedal
hard, much harder than normal. And your braking
distance will be longer.
Anti±lock brake system
The anti±lock brake system is designed to help
prevent lock±up of the wheels during a sudden
braking or braking on slippery road surfaces. This
assists in providing directional stability and
steering performance of the vehicle under these
circumstances.
Effective way to press the ABS brake pedal: When the
anti±lock brake system function is in action, you may feel the
brake pedal pulsating and hear a noise. In this situation, to
let the anti±lock brake system work for you, just hold the
brake pedal down more firmly. Do not pump the brake in a
panic stop. This will result in reduced braking performance.

STARTING AND DRIVING
310The anti±lock brake system becomes operative after the
vehicle has accelerated to a speed in excess of
approximately 10 km/h (6 mph). It stops operating when
the vehicle decelerates to a speed below approximately
5 km/h (3 mph).
Depressing the brake pedal on slippery road surfaces
such as on the manhole cover, the steel plate under the
construction, joints in the bridge, etc. on a rainy day
tends to activate the anti±lock brake system.
You may hear a click or motor sound in the engine
compartment for a few seconds when the engine is
started or just after the vehicle is started. This means
that the anti±lock brake system is in the self±check
mode, and does not indicate a malfunction.
When the anti±lock brake system is activated, the
following conditions may occur. They do not
indicate a malfunction of the system:

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.

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311
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 tires 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.

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312
Anti±lock brake system is not designed to shorten the
stopping distance: Always drive at the 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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313
ªABSº warning light
31E068
The light comes on when the ignition key is turned to the
ªONº position. If the anti±lock brake system and the
brake
assist system work properly, the light turns off after
a few seconds. Thereafter, if either of the systems
malfunctions, the light comes on again.
When the ªABSº warning light is on (and the brake
system warning light is off), the anti±lock brake system,
the brake assist system, the traction control system and
the vehicle skid control system do not operate, but the
brake system still operates conventionally.
When the ªABSº warning light is on (and the brake
system warning light is off), the anti±lock brake system
does not operate so that the wheels could lock up during
a sudden braking or braking on slippery road surfaces. If either of the following conditions occurs, this
indicates a malfunction somewhere in the parts
monitored by the warning light system. Contact
your
Lexus dealer as soon as possible to service the
vehicle.
 The light does not come on when the ignition key is
turned to the ªONº position, or remains on.
 The light comes on while you are driving.
A warning light turning on briefly during operation does
not indicate a problem.