2000 Lexus GS300 tires

SECTION 6 ± 3
412
SERVICE PROCEDURES AND
SPECIFICATIONS
Chassis
Specifications (GS400) 413. . . . . . . . . . . . . . . . . . . . . . . .
Specifications (GS300) 416. . . . . . . . . . . . . . . . . . . . . . . .
Checking brake fluid 420. . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking power steering fluid (GS400) 422. . . . . . . . . .
Checking power steering fluid (GS300) 426. . . . . . . . . .
Checking tire pressure 429. . . . . . . . . . . . . . . . . . . . . . . . .
Rotating tires 432. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing tires 433. . . . . . . . . . . . . . . . . . .
Installing snow tires and chains 436. . . . . . . . . . . . . . . . .
Replacing wheels 438. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aluminum wheel precautions 438. . . . . . . . . . . . . . . . . . .
Suspension and chassis 439. . . . . . . . . . . . . . . . . . . . . . .

CHASSIS
415 ± TIRES AND WHEELS
Tire size
Tire inflation pressure
Recommended cold tire inflation pressure
225/55R16 94V
235/45ZR17
Wheel size
Wheel nut torque
Type A: 225/55R16 94V
Type B: 235/45ZR17
Front 220 kPa (2.2 kgf/cm
2
or bar, 32 psi)
Rear 220 kPa (2.2 kgf/cm2 or bar, 32 psi)
Front 230 kPa (2.3 kgf/cm2
or bar, 33 psi)
Rear 230 kPa (2.3 kgf/cm2 or bar, 33 psi)
For sustained high speeds above 160 km/h (100
mph), in countries where such speeds are permitted
by law, add 70 kPa (0.8 kgf/cm
2, 0.7 bar, 10 psi) to the
front tires and rear tires, but never exceed the
maximum cold tire pressure molded on the tire
sidewall.
Type A: 16 x 7
1/2 JJ
Type B: 17 x 8 JJ
103 N´m (10.5 kgf´m, 76 ft´lbf.)
NOTE: For complete information on tires (e.g. replacing tires or replacing wheels), see ªChecking tire pressureº through
ªAluminum wheel precautionsº on page 429 through 438.

CHASSIS
418± TIRES AND WHEELS (Type A)
Tire size
Tire inflation pressure
Recommended cold tire inflation pressure
Wheel size
Wheel nut torque
P215/60R16 94V
Front 210 kPa (2.1 kgf/cm
2
or bar, 30 psi)
Rear 210 kPa (2.1 kgf/cm2 or bar, 30 psi)
For sustained high speeds above 160 km/h (100
mph), in countries where such speeds are permitted
by law, add 90 kPa (1.0 kgf/cm
2, 0.9 bar, 13 psi) to the
front tires and rear tires, but never exceed the
maximum cold tire pressure molded on the tire
sidewall.
16 x 7
1/2 JJ
103 N´m (10.5 kgf´m, 76 ft´lbf.)
NOTE: For complete information on tires (e.g. replacing tires or replacing wheels), see ªChecking tire pressureº through
ªAluminum wheel precautionsº on page 429 through 438.

CHASSIS
419 ± TIRES AND WHEELS (Type B)
Tire size
Tire inflation pressure
Recommended cold tire inflation pressure
Wheel size
Wheel nut torque
225/55R16 94V
Front 220 kPa (2.2 kgf/cm
2
or bar, 32 psi)
Rear 220 kPa (2.2 kgf/cm2 or bar, 32 psi)
For sustained high speeds above 160 km/h (100
mph), in countries where such speeds are permitted
by law, add 80 kPa (0.9 kgf/cm
2, 0.8 bar, 12 psi) to the
front tires and rear tires, but never exceed the
maximum cold tire pressure molded on the tire
sidewall.
16 x 7
1/2 JJ
103 N´m (10.5 kgf´m, 76 ft´lbf.)
NOTE: For complete information on tires (e.g. replacing tires or replacing wheels), see ªChecking tire pressureº through
ªAluminum wheel precautionsº on page 429 through 438.

CHASSIS
430
63G005
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
pressure for the spare tire should be the same with that
for the standard tire. (See page 415 or 418.) 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 proper level. If a tire needs frequent
refilling, have it checked by your Lexus dealer.

CHASSIS
431 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
least 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.

CHASSIS
432
ROTATING TIRES
63L008-1
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.

CHASSIS
433
CHECKING AND REPLACING
TIRES
When to replace your tires
63G001

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 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.Vehicles equipped with 235/45R17 tires: Your Lexus
has been fitted with specially developed tires which
provide exceptional dynamic performance under
general road conditions. However your riding comfort
may worsen a little and road noise may increase during
driving. You may also notice that your tires will wear
more rapidly and tire grip performance will be reduced
on the snowy and/or icy roads when compared to
standard tires. Be sure to have snow tires or tire chains
on the snowy and/or icy roads and drive carefully with
the speed appropriate for road conditions.
The effectiveness of snow tires is lost if the tread