2000 Lexus GS300 brake

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
414± BRAKES
Pedal clearance *
1
Pedal free play
Brake pad wear limit
Parking brake lining wear limit
Parking brake adjustment *
2
Fluid type
93 mm (3.7 in.) Min.
0.2 ± 2 mm (0.008 ± 0.08 in.)
1.0 mm (0.04 in.)
1.0 mm (0.04 in.)
7 ± 9 clicks
SAE J1703 or FMVSS No. 116 DOT 3
*1Minimum pedal clearance when depressed with the pressure of 196 N (20 kgf, 44 lbf.) with the engine running
*
2Parking brake adjustment when depressed with the pressure of 294 N (30 kgf, 66.1 lbf.)
± STEERING
Free play
Power steering fluid
Less than 30 mm (1.2 in.)
Automatic transmission fluid DEXRONII or III

CHASSIS
417 ± BRAKES
Pedal clearance *
1
Pedal free play
Brake pad wear limit
Parking brake lining wear limit
Parking brake adjustment *
2
Fluid type
93 mm (3.7 in.) Min.
0.2 ± 2 mm (0.008 ± 0.08 in.)
1.0 mm (0.04 in.)
1.0 mm (0.04 in.)
7 ± 9 clicks
SAE J1703 or FMVSS No. 116 DOT 3
*1Minimum pedal clearance when depressed with the pressure of 196 N (20 kgf, 44 lbf.) with the engine running
*
2Parking brake adjustment when depressed with the pressure of 294 N (30 kgf, 66.1 lbf.)
± STEERING
Free play
Power steering fluid
Less than 30 mm (1.2 in.)
Automatic transmission fluid DEXRONII or III

CHASSIS
420
CHECKING BRAKE FLUID
63G002a

CHASSIS
421 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.

CHASSIS
422
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.
NOTICE
If you spill some of the fluid, be sure to wipe it off
to prevent it from damaging the parts or
paintwork.
CHECKING POWER STEERING
FLUID (GS400)

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.