Lexus ES300 1999 Owner's Manuals (in English)

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391
CHECKING BRAKE FLUID
63E001±1

Vehicles equipped with vehicle skid controlsystem
63E001

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392

Vehicles equipped with traction control system
To check the fluid level, simply look at the
see±through
reservoir. The level should be between
the ºMAXº and ºMINº lines on the tank.
It is normal for the brake fluid level to go down slightly as
the brake pads wear. So be sure to keep the reservoir
filled.
If the reservoir needs frequent refilling, it may indicate a
serious mechanical problem.
If the level is low, add FMVSS No.116 DOT 3 or SAE
J1703 brake fluid to the brake reservoir.
Remove and replace the reservoir cover by hand. Add
brake fluid up to the ºMAXº line.
Use only newly opened brake fluid. Once opened, brake
fluid absorbs moisture from the air, and excess moisture
can cause a dangerous loss of braking efficiency.
CAUTION
Take care when filling the reservoir because brake fluid
can harm your hands or eyes and damage painted
surfaces. If fluid gets in your hands or eyes, flush them
with clean water.

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393
NOTICE
If you spill some of the fluid, be sure to wipe it offto prevent it from damaging the parts orpaintwork.
CHECKING POWER STEERING FLUID

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394
63E002±1
Check the fluid level through the reservoir. If
necessary, add automatic transmission fluid
DEXRON
II or III.
If the vehicle has been driven around 80 km/h (50 mph)
for 20 minutes (a little more in frigid temperatures), the
fluid is hot (60C ± 80C or 140 F ± 175F). You may
also check the level when the fluid is cold (about room
temperature, 10 C ± 30C or 50F ± 85F) if the engine
has not been run for about five hours.

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395
63E003±1

1If hot O.K. 2If hot add 3If cold O.K.
4If cold add
Clean all dirt off the reservoir and look at the fluid level.
If the fluid is cold, the level should be in the ºCOLDº
range. Similarly, if it is hot, the fluid level should be in the
ºHOTº range. If the level is at the low side of the
appropriate range, add automatic transmission fluid
DEXRON
II or III to bring the level within the range.
To remove the filler cap, turn it counterclockwise and lift
up. To reinstall it, turn it clockwise. After replacing the
filler cap, visually check the steering box case, vane
pump and hose connections for leaks or damage.
CAUTION
The reservoir may be hot so be careful not to burn
yourself.

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396
NOTICE
Avoid overfilling, or the power steering could bedamaged.

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397
CHECKING TIRE PRESSURE
63E004±1
The recommended cold tire pressures, tire size and
the vehicle capacity weight are given on the label.
You should check the tire pressures every two weeks, or
at least once a month. And don't forget the spare! The
air pressure for the spare tire should be 220 kPa (2.2
kgf/cm
2 or bar, 32 psi). Incorrect tire pressure can
reduce tire life and make your vehicle less safe to drive. Low tire pressure results in excessive wear, poor
handling, reduced fuel economy, and the possibility of
blowouts from overheated tires. Also, low tire pressure
can cause poor sealing of the tire bead. If the tire
pressure is excessively low, there is the possibility of
wheel deformation and/or tire
separation. So keep your
tire pressures at the pr oper level. If a tire needs frequent
refilling, have it checked by your Lexus dealer.
High tire pressure produces a harsh ride, handling
problems, excessive wear at the center of the tire tread,
and a greater possibility of tire damage from road
hazards.
The following instructions for checking tire pressure
should be observed:
 The pressure should be checked only when the
tires are cold. If your vehicle has been parked for at

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398least 3 hours and has not been driven for more than
1.5 km or 1 mile since, you will get an accurate cold
tire pressure reading.
 Always use a tire pressure gauge. The
appearance of the tire can be misleading. Besides,
tire pressures that are even just a few pounds off can
degrade handling and ride.
 Do not bleed or reduce tire pressure after driving.
It is normal for the tire pressure to be higher after
driving.
 Never exceed the vehicle capacity weight. The
passengers and luggage weight should be located so
that the vehicle is balanced.
 Be sure to reinstall the tire valve caps. Without the
valve caps, dirt or moisture could get into the valve
core and cause air leakage. If the caps have been
lost, have new ones put on as soon as possible.
ROTATING TIRES
63E005±1

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399
To equalize tire wear and help extend tire life, Lexus
recommends that you rotate your tires
approximately every 12000 km (7500 miles).
However, the most appropriate timing for tire
rotation may vary according to your driving habits
and road surface conditions.
The wheel assemblies must be rotated as illustrated
above.
When rotating tires, check for uneven wear and
damage. Abnormal wear is usually caused by incorrect
tire
pressure, improper wheel alignment, out±of balance
wheels, or severe braking.
Before storing radial, snow or studded tires, mark the
direction of rotation and be sure to install them in the
same direction when using them again. Tires should be
stored in a cool dry place.
CHECKING AND REPLACING TIRES
When to replace your tires

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400
63E006

1New tread 2Tread wear indicator 3Worn
tread
Replace the tires when the tread wear indicators
show. The location of the tread wear indicators is
shown by the marks such as ºTWIº or º
Dº marks
molded on the sidewall of each tire.
The tires on your Lexus have built±in tread wear
indicators to help you know when the tires need
replacement. When the tread depth wears to 1.6 mm
(0.06 in.) or less, the indicators will appear. If you can
see the indicators in two or more adjacent grooves, the
tire should be replaced.
The effectiveness of snow tires is lost if the tread
wears down below 4 mm (0.16 in.).