2001 Lexus IS300 Electrical Components / LEXUS 2001 IS300 OWNER'S MANUAL (OM53437)

SECTION 6 ± 3
245
SERVICE PROCEDURES AND
SPECIFICATIONS
Chassis
Specifications246
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Checking brake fluid 250
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Checking power steering fluid 251
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Checking tire pressure 252
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Rotating tires 253
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Checking and replacing tires 254
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Installing snow tires and chains 257
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Replacing wheels 258
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Aluminum wheel precautions 259
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Suspension and chassis 259
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CHASSIS
246
SPECIFICATIONS
± AUTOMATIC TRANSMISSIONFluid capacity Drain and refill
Fluid type
2.4 L (2.5 qt., 2.1 lmp.qt.)
Automatic transmission fluid Type T ± IV*
± DIFFERENTIAL
Oil capacity
Oil type
Oil viscosity
1.15 L (1.22 qt., 1.01 lmp.qt.)
Hypoid gear oil API GL±5
Above ±18 C (0F): SAE 90
Below ±18 C (0F): SAE 80W or SAE 80W±90
*Change automatic transmission fluid only as necessary.
Generally, it is necessary to change automatic transmission
fluid only if your vehicle is driven under one of the Special
Operating Conditions listed in your ºOwner's Manual
Supplement / Maintenance Scheduleº. When changing the
automatic transmission fluid, use only Toyota Genuine ATF
Type T±IV ( ATF JWS3309 or NWS6500) to aid in assuring
optimum transmission performance.NOTICE
Using automatic transmission fluid other than Toyota Genuine ATF T ype T±IV may cause deterioration in shift
quality, locking up of your transmission accompanied by vibration, and ultimately damage the automatictransmission of your vehicle.

CHASSIS
247
± BRAKES
Pedal clearance *
1
Pedal free play
Brake pad wear limit
Parking brake lining wear limit
Parking brake adjustment *
2
Fluid type
99 mm (3.9 in.) Min.
2.0 ± 4.5 mm (0.08 ± 0.18 in.)
1.0 mm (0.04 in.)
1.0 mm (0.04 in.)
5 ± 8 clicks
SAE J1703 or FMVSS No. 116 DOT 3
*1Minimum pedal clearance when depressed with the force of 490 N (49 kgf,\
110 lbf.) with the engine running
*
2Parking brake adjustment when pulled with the force of 196 N (20 kgf, 4\
4 lbf.)
± STEERING Free play
Power steering fluid
Less than 30 mm (1.2 in.)
Automatic transmission fluid DEXRONII or III

CHASSIS
248± TIRES AND WHEELS (Type A)
Tire size
Tire inflation pressure Recommended cold tire inflation pressure
Wheel size
Wheel nut torque
215/45ZR17
Front 230 kPa (2.3 kgf/cm
2 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.
17 x 7 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 ºChecking tire pressureº through ºAluminum
wheel precautionsº on page 252 through 259.

CHASSIS
249
± TIRES AND WHEELS (Type B)
Tire size
Tire inflation pressure Recommended cold tire inflation pressure
Wheel size
Wheel nut torque
P205/55R16 89V
Front 230 kPa (2.3 kgf/cm
2 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.
16 x 6.5 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 ºChecking tire pressureº through ºAluminum
wheel precautionsº on page 252 through 259.

CHASSIS
250
CHECKING BRAKE FLUID
SV63001
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 or when the fluid level in the accumulator is
high.
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.
Refilling brake fluid:
1. Turn the ignition switch off.
2. Depress the brake pedal more than 40 times.
3. Remove the reservoir cap by hand. Add brake fluid up to the
ºMAXº line. If you do not follow the procedure above, the reservoir may
overflow.
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 eyes, flush your eyes with
clean water immediately. If you still feel uncomfortable
with your eyes, go to the doctor.
NOTICE
If you spill some of the fluid, be sure to wipe it off to prevent it from damaging the parts or paintwork.

CHASSIS
251
CHECKING POWER STEERINGFLUID
SV63002
Check the fluid level on the dipstick. If necessary, add
automatic transmission fluid DEXRONII 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
(60 C ± 80C or 140F ± 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.
SV63003

1If cold O.K. 2If hot O.K. 3Add fluid
1. Clean all dirt off the reservoir.
2. Remove the reservoir cap by turning it counterclockwise
and wipe the dipstick clean.
3. Reinstall the reservoir cap.
4. Remove the reservoir cap again and look at the fluid level.
If the fluid is cold, the level should be in the ºCOLDº range on
the dipstick. Similarly, if it is hot, the fluid level should be in the
ºHOTº range. If the level is at the low side of either range, add
automatic transmission fluid DEXRON
II or III to bring the
level within the range.
5. After replacing the reservoir cap, visually check the steering
box case, vane pump and hose connections for leaks or
damage.

CHASSIS
252
CAUTION
The reservoir may be hot so be careful not to burn
yourself.
NOTICE
Avoid overfilling, or the power steering could bedamaged.
When adding the power steering fluid, avoid spillingit. The generator under the power steering reservoircould be damaged if fluid is spilled on it.
CHECKING TIRE PRESSURE
SV61004
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 248.) 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.