2005 Lexus GX470 Audio / LEXUS 2005 GX470 OWNER'S MANUAL (OM60B11U)

ENGINE
564
SPARK PLUGSYour engine is fitted with iridium±tipped spark plugs.
NOTICE
Use only iridium±tipped spark plugs and do not adjustgaps for your engine performance and smoothdrivability.

ENGINE
565

SECTION 6 ± 3
566
SERVICE PROCEDURES AND
SPECIFICATIONS
Chassis
Specifications567
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking brake fluid 571
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking power steering fluid 572
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . .
Checking tire inflation pressure 574
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . .
Tire information 578
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of tires 587
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rotating tires 588
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing tires 589
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . .
Installing snow tires and chains 591
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . .
Replacing wheels 596
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aluminum wheel precautions 597
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . .
Suspension and chassis 597
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . . . . . . . . . . . . . .

CHASSIS
567
SPECIFICATIONS
Ð DIFFERENTIALOil capacity Front
Rear
1.4 L (1.5 qt., 1.2 Imp. qt.)
3.1 L (3.3 qt., 2.7 Imp. qt.)
Oil typeHypoid gear oil API GL±5
Oil viscosityAbove ±18C (0F): SAE 90 or SAE 85W±90
Below ±18 C (0F): SAE 80W or SAE 80W±90
Ð TRANSFER
Oil capacity
1.4 L (1.5 qt., 1.2 Imp. qt.)
Oil typeHypoid gear oil API GL±5
Recommended oil viscositySAE 75W±90

CHASSIS
568Ð AUTOMATIC TRANSMISSION
Fluid capacity Drain and refill
Up to 3.0 L (3.2 qt., 2.6 Imp. qt.)
Fluid typeToyota Genuine ATF WS*
*: 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 ªOwner's Manual
Supplement/Scheduled Maintenanceº. When changing the
automatic transmission fluid, use only ªToyota Genuine ATF
WSº (ATF JWS3324 or NWS9638) to aid in assuring optimum
transmission performance.

CHASSIS
569
NOTICE
Using automatic transmission fluid other than ªToyotaGenuine ATF WSº may cause deterioration in shiftquality, locking up of your transmission accompaniedby vibration, and ultimately damage the automatictransmission of your vehicle.
Please contact your Lexus dealer for further details.
Ð BRAKES
Pedal clearance
52 mm (2.0 in.) Min. *1
Pedal free play1 Ð 6 mm (0.04 Ð 0.24 in.)
Brake pad wear limit1.0 mm (0.04 in.)
Parking brake lining wear limit1.0 mm (0.04 in.)
Parking brake adjustment5 Ð 7 clicks *2
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3
*1: Minimum pedal clearance when depressed with the force of 490 N (50 kgf,\
110 lbf) with the engine running
*2: Parking brake adjustment when pulled with the force of 196 N (20 kgf, 4\
4 lbf)

CHASSIS
570Ð CHASSIS LUBRICATION
Propeller shafts Spiders
Slide yoke
Lithium base chassis grease, NLGI No.2
Molybdenum±disulfide lithium base chassis grease, NLGI No.2 or
lithium base chassis grease, NLGI No.2
Ð STEERING
Free play
Less than 30 mm (1.2 in.)
Power steering fluidAutomatic transmission fluid DEXRONII or III
Ð TIRES AND WHEELS
Tire size
P265/65R17 110S
Tire inflation pressure Recommended cold tire inflation
pressure
220 kPa (2.2 kgf/cm2 or bar, 32 psi)
Wheel size17
7 1/2 JJ
Wheel nut torque112 N´m (11.5 kgf´m, 83 ft´lbf)
NOTE:
For complete information on tires (e.g. replacing tires or replacing wh\
eels), see ªChecking tire inflation pressureº
through ªAluminum wheel precautionsº on pages 574 through 597.

CHASSIS
571
CHECKING BRAKE FLUID
To check the fluid level, simply look at the see±through
reservoir. The level should be between the ªMAXº and
ªMINº 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 20 times (until the brake
pedal resistance decreases and pedal travel increases).
3. Remove the reservoir cap by hand. Add brake fluid up to the
ªMAXº 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. If fluid gets on your hands
or in your eyes, flush the affected area with clean water
immediately. If you still feel uncomfortable with your
hands or 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.