2001 Lexus ES300 warning light

STARTING AND DRIVING
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.

STARTING AND DRIVING
314
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 assist system (Vehicles with
vehicle skid control system)
When you slam the brakes on, the brake assist
system judges as an emergency stop and provides
more powerful braking for a driver who cannot hold
down the brake pedal firmly.
When you slam the brakes on, more powerful braking
will be applied. At this time, you may hear a sound in the
engine compartment and feel the vibrations of the brake
pedal. This does not indicate a malfunction.
The brake assist 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).
For an explanation of this system's warning light, see
ªABS warning lightº on page 65 and ªVehicle skid control
system warning lightsº on page 65.

MAINTENANCE
383
Vehicle interior
Items listed below should be checked regularly, e.g.
while performing periodic services, cleaning the
vehicle, etc.
Lights
Make sure the headlight, stop lights, tail lights, turn
signal lights, and other lights are working. Check
headlight aim.
Service reminder indicators and warning buzzers
Check that all service reminder indicators and warning
buzzers function properly.
Steering wheel
Check that it has the specified freeplay. Be alert for
changes in steering condition, such as hard steering,
excessive freeplay or strange noise.
Seats
Check that all front seat controls such as seat adjusters,
seatback recliner, etc. operate smoothly. Check that the
head restraints move up and down smoothly and that the
locks hold securely in any latched position.
Seat belts
Check that the seat belt system such as buckles,
retractors and anchors operate properly and smoothly.
Make sure the belt webbing is not cut, frayed, worn or
damaged. Accelerator pedal
Check
the pedal for smooth operation and uneven pedal
effort or catching.
Brake pedal
Check the pedal for smooth operation and the proper
clearance and freeplay. Check the brake booster
function.
Brakes
At a safe place, check that the brakes do not pull to one
side when applied.
Parking brake
Check that the pedal has the proper travel and that, on
a safe incline, your vehicle is held securely with only the
parking brake applied.
Automatic transmission ªParkº mechanism
Check the lock release button of the selector lever for
proper and smooth operation. On a safe incline, check
that your vehicle is held securely with the selector lever
in ªPº position and all brakes released.

CHASSIS
440
REPLACING WHEELS
When to replace your wheels
If you have wheel damage such as bending, cracks
or heavy corrosion, the wheel should be replaced.
If you fail to replace damaged wheels, a tire may slip off
a wheel or cause loss of handling control.
Replacement with used wheels is not recommended as
they may have been subjected to rough treatment or
high mileage and could fail without warning. Also, bent
wheels which have been straightened may have hidden
structural damage and therefore should not be used.
Never use an inner tube in a leaking wheel which is
designed for a tubeless tire.
Wheel selection
When replacing wheels, care should be taken to
ensure that they are equivalent to those removed in
load capacity, diameter, rim width, and offset.
Correct replacement wheels are available at your Lexus
dealer.
A wheel of a different size or type may adversely affect
handling, wheel and bearing life, brake cooling,
speedometer/odometer calibration, stopping ability,
headlight aim, bumper height, vehicle ground clearance,
and tire or snow chain clearance to the body and
chassis.
ALUMINUM WHEEL PRECAUTIONS
 When installing aluminum wheels, check that the
wheel nuts are tight after driving your vehicle the first
1600 km (1000 miles).
 If you have rotated, repaired, or changed your tires,
check that the wheel nuts are still tight after driving
1600 km (1000 miles).
 When using tire chains, be careful not to damage the
aluminum wheels.
 Use only the Lexus wheel nuts and wrench designed
for your aluminum wheels.
 When balancing your wheels, use only Lexus
balance weights or equivalent and a plastic or rubber
hammer.
 As with any wheel, periodically check your aluminum
wheels for damage. If damaged, replace
immediately.

ELECTRICAL COMPONENTS
449
*1: Vehicles with discharge headlight*2: Vehicles without discharge headlightNo.FUSEAMPERECIRCUIT
14 AM230Starting system
15 TEL5Telephone
16 HEAD
LH(UPR)20Left±hand headlight (high
beam)
17 ALT±S5Charging system
18 HEAD
RH(UPR)20Right±hand headlight
(high beam)
19 EFI15Multiport fuel injection
20 HORN10Theft deterrent system
21 RDI30Electronic cooling fan
system
22 CDS30Air conditioning system
23 A/F HTR25Air fuel ratio sensor
24 A/C10No circuit
25 SEAT
±HEATER20Seat heater system
26 HEATER10Air conditioning system
27 GAUGE10
Gauges and meters,
Service reminder
indicators and warning
buzzers, Back±up light,
Door courtesy light, Seat
heater, Power window
system