wheel Lexus GS300 2000 Chassis

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
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
435 tire's ability to stop on wet pavement as measured under
controlled conditions on specified government test
surfaces of asphalt and concrete. A tire marked C may
have poor traction performance.Warning: The traction grade assigned to this tire is
based on braking (straight ahead) traction tests and
does not include cornering (turning) traction.
Temperature A, B, C ± The temperature grades are A
(the highest), B, and C, representing the tire's resistance
to the generation of heat and its ability to dissipate heat
when tested under controlled conditions on a specified
indoor laboratory test wheel. Sustained high
temperature can cause the material of the tire to
degenerate and reduce tire life, and excessive
temperature can lead to sudden tire failure. The grade
C corresponds to a level of performance which all
passenger car tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B and A
represent higher levels of performance on the laboratory
test wheel than the minimum required by law.
Warning: The temperature grades for this tire are
established for a tire that is properly inflated and not
overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.

CHASSIS
436
Tire selection
When replacing a tire, use only the same size and
construction as originally installed and with the
same or greater load capacity.
Using any other size or type of tire may seriously affect
handling, ride, speedometer/odometer calibration,
ground clearance, and clearance between the body and
tires or snow chains.Do not mix radial, belted, or conventional tires on
your vehicle.
Do not use tires or wheels other than the
manufacturer's recommended size.
It can cause dangerous handling characteristics,
resulting in loss of control. If you need to change from
conventional tires to radial tires or vice versa, replace
them as a set.
INSTALLING SNOW TIRES AND
CHAINS
When to use snow tires or chains
Snow tires or chains are recommended when
driving on snow or ice.
On wet or dry roads, conventional or radial tires provide
better traction than snow or studded tires.
Snow tire selection
If you need snow tires, select the same size,
construction and load capacity as the original tires
on your Lexus.
Do not use tires other than stated above. Since your
vehicle has radial tires as original equipment, make sure
your snow tires also have radial construction. Do not
install studded tires without first checking local
regulations for possible restrictions.

CHASSIS
437
Snow tire installation
Snow tires should be installed on all wheels.
Installing snow tires on the rear wheels only can lead to
an excessive difference in road grip capability between
the front and rear tires which could cause loss of vehicle
control.
CAUTION
Do not drive with the snow tires incorrectly inflated.
Never drive over 120 km/h (75 mph) with any type of
snow tires.
Tire chain selection
Regulations regarding the use of tire chains vary
according to location or type of road. Always check
the local regulations before installing chains.
Use SAE Class ºSº type radial tire chains, with the
exception of radial cable chains or V±bar type chains.
Chain installation
Install the chains on the rear tires as tightly as
possible. Do not use tire chains on the front tires.
Retighten chains after driving 0.5 ± 1.0 km (1/4 ± 1/2
mile).
When installing chains on your tires, carefully follow the
instructions of the chain manufacturer.
CAUTION
Do not exceed 50 km/h (30 mph) or the chain
manufacturer's recommended speed limit,
whichever is lower.
Drive carefully avoiding bumps, holes, and sharp
turns, which may cause the vehicle to bounce.
Avoid sharp turns or locked±wheel braking, as use of
chains may adversely affect vehicle handling.

CHASSIS
438
REPLACING WHEELS
When to replace your wheels
If you have wheel damage such as bends, cracks or
heavy corrosion, the wheel should be replaced.
If you fail to replace damaged wheels, the tire may slip
off the 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
After driving your vehicle the first 1600 km (1000
miles), check that the wheel nuts are tight.
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.