1997 Lexus ES300 brakes

STARTING AND DRIVING
144
TRACTION CONTROL SYSTEM
The traction control system automatically helps control
the spinning of the front wheels which may occur when
accelerating on slippery road surfaces, thus assisting
driver to control the driver to control the driving power
of the front wheels.
When you turn the ignition switch on, this system
always turns on. Leave the system on during ordinary
driving so that it can operate when needed. When
traction control is applied, the slip indicator light
blinks.
You can turn off the traction control system by pushing
the ªTRAC OFFº switch. The ªTRAC OFFº
indicator/warning light will then come on. Pushing the
ªTRAC OFFº switch a second time turns the system
back on and extingusihes the ªTRAC OFFº
indicator/warning light.
You may hear a slight clicking noise in the engine
compartment when the engine is started. This means that
the traction control system is in the self±check mode, and
does not indicate malfunction. When the traction control
system is operating, you may feel vibation or noise of your
vehicle, caused byoperation of the brakes. This indicates the
system is functioning properly.
When getting the vehicle out of the mud or new snow, etc.
the traction control system will help operate to prevent the
wheels from spinning.

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145
Traction control failure warning
If hte ªTRAC OFFº indicator/warning light flashes, contact
your Lexus dealer as soon as possible. There may be
trouble in the traction control system.
CAUTION!
Under certain slippery road conditions, full traction
of the vehicle and power to the front wheels cannot
be maintained, even though the traction control
system is in operation. Do not drive the vehicle
under any speed or maneuvering conditions which
will cause the vehicle to lose traction. In situations
where the road surface is covered with ice or snow,
your vehicle should be fitted with snow tires or tire
chains. Always drive at an appropriate and cautious
pace.
BRAKE SYSTEM
The tandem master cylinder brake system is 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 reserve vacuum for one or two stops but no more!
CAUTION!
Do not pump the brake pedal if the engine stalls.
Each push on the pedal uses up your braking
distance will be longer.
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.

STARTING AND DRIVING
147 ªABSº warning light
This light comes on when the ignition key is turned to
the ªONº position. After about 3 seconds, the light will
turn off.
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 as described above, or remains
on.
The light comse on while driving.
Even if the anti±lock brake system should fail, the brake
system will still operate conventionally. But when the ªABSº
warning light is on (and the brake system warning light is off),
anti±lock system is not assisting brake performance so that
the wheels could lick up during a sudden brake or braking on
slippery road surfaces. Have your vehicle checked by your
Lexus dealer as soon as possible.
Drum±in±disc type parking brake system
Your vehicle has a drum±in±disc type parking brake system.
This type of brake system needs bedding±down of the brake
shoes periodically or whenever the parking brake shoes
and/or drums are replaced.
Have your Lexus dealer perform the bedding±down.
BRAKE PAD WEAR LIMIT
INDICATORS
The brake pad wear limit indicators on your disc brakes
give a warning noise when the brake pads are worn to
the extent that replacement is required.
If you hear a squealing or scraping noise while driving, have
the brake pads checked and replaced by your Lexus dealer
as soon as possible. Expensive rotor damage can result if
the pads are not replaced when needed.