2012 Lexus GX460 power steering fluid

178
2-1. Driving procedures
GX460_U.S.A. (OM60J00U)
NOTICE
■Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in either direction and hold it there for an
extended period of time.
Doing so may damage the power steering pump.
●When driving over bumps in the road, drive as slowly as possible to avoid damag-
ing the wheels, underside of the vehicle, etc.
■If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering wheel
firmly and gradually depress the brake pedal to slow down the vehicle.
●It may be difficult to control your vehicle.
●The vehicle will make abnormal sounds or vibrations.
●The vehicle will lean abnormally.
Information on what to do in case of a flat tire ( →P. 7 2 1 )
■When encountering flooded roads
Do not drive on a road that has flooded after heavy rain etc. Doing so may cause the
following serious damage to the vehicle:
●Engine stalling
●Short in electrical components
●Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle is flooded, be sure to
have your Lexus dealer check the following:
●Brake function
●Changes in quantity and quality of oil and fluid used for the engine, transmission,
transfer, differentials, etc.
●Lubricant condition for the propeller shaft, bearings and suspension joints (where
possible), and the function of all joints, bearings, etc.

598
4-2. Maintenance
GX460_U.S.A. (OM60J00U)
General maintenance
Engine compartment
ItemsCheck points
BatteryCheck the indicator and
connections. (→P. 6 2 3 )
Brake fluidIs the brake fluid at the correct level?
(→ P. 6 1 9 )
Engine coolantIs the engine coolant at the correct
level? ( →P. 6 1 6 )
Engine oilIs the engine oil at the correct level?
(→ P. 611)
Exhaust systemThere should not be any fumes or
strange sounds.
Power steering fluidIs the power steering fluid at the
correct level? ( →P. 6 2 1 )
Radiator/condenser
The radiator and condenser should
be free from foreign objects.
( →P. 6 1 8 )
Wa s h e r f l u i dIs there sufficient washer fluid?
(→ P. 6 2 7 )
Listed below are the general maintenance items that should be performed
at the intervals specified in the “Warranty and Service Guide” or “Owner’s
Manual Supplement”. It is recommended that any problem you notice
should be brought to the attention of your Lexus dealer or qualified service
shop for advice.

605
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
ItemsParts and tools
Fuses(→ P. 6 4 7 )• Fuse with same amperage rating as
original
Headlight aim ( →P. 660)• Phillips-head screwdriver
Light bulbs (→ P. 6 6 2 )
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Power steering fluid level (→ P. 6 2 1 )
• Automatic transmission fluid
DEXRON® II or III
•Rag or paper towel
• Clean funnel
Radiator and condenser ( →P. 6 1 8 )
Tire inflation pressure ( →P. 6 3 5 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( →P. 6 2 7 )
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)

609
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
Engine compartment
Engine coolant reservoir(→P. 6 1 6 )
Engine oil level dipstick (→P. 6 1 1 )
Engine oil filler cap (→P. 6 1 2 )
Brake fluid reservoir (→P. 6 1 9 )Fuse box ( →P. 6 4 7 )
Battery ( →P. 623)
Radiator ( →P. 6 1 8 )
Condenser ( →P. 6 1 8 )
Electric cooling fan
Washer fluid tank ( →P. 6 2 7 )
Power steering fluid reservoir (→P. 621)

621
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60J00U)
Power steering fluid■ Fluid level
The fluid level should be within the appropriate range.
Full (when cold)
Add fluid (when cold)
Full (when hot)
Add fluid (when hot)
Hot: The vehicles has been driven around 50 mph (80 km/h) for 20 minutes, or slightly longer in frig id temperatures. (Fluid temper-
ature, 140 °F - 175 ° F [60 °C - 80 ° C]).
Cold: The engine has not been run for about 5 hours. (Room tempera- ture, 50 °F - 85 °F [10 ° C - 30 °C]).

622
4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60J00U)■
Checking the fluid level
Make sure to check the fluid type and prepare the necessary items.
Clean all dirt off the reservoir.
Remove the cap by turning it counterclockwise.
Wipe the dipstick clean.
Reinstall the cap and remove it again.
Check the fluid level.
Fluid typeAutomatic transmission fluid DEXRON® II or III
ItemsRag or paper, clean funnel (only for adding fluid)
CAUTION
■When checking the reservoir
Take care as the reservoir may be hot.
NOTICE
■When adding fluid
Avoid overfilling, or the power steering may be damaged.
■After replacing the reservoir cap
Check the steering box case, vane pump and hose connections for leaks or dam-
age.
STEP1
STEP2
STEP3
STEP4
STEP5

762
6-1. Specifications
GX460_U.S.A. (OM60J00U)
Chassis lubrication
Steering
Tires and wheels
Propeller shafts
Spiders
Slide yokeLithium base chassis grease, NLGI No.2
Molybdenum-disulfide lithium base chassis
grease, NLGI No.2 or lithium base chassis
grease, NLGI No.2
Free playLess than 1.18 in. (30 mm)
Power steering fluid typeAutomatic transmission fluid DEXRON® II
or III
Ti r e s i z eP265/60R18 109H
Tire inflation pressure
(Recommended cold tire inflation
pressure)
Driving under normal conditions Front:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Rear:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Spare:
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Wheel size18 × 7 1 /2 J
Wheel nut torque83 ft•lbf (112 N•m, 11.4 kgf•m)

824
Alphabetical index
GX460_U.S.A. (OM60J00U)
Floor mats ................................................556
FluidBrake..........................................................619
Power steering...................................... 621
Washer ................................................... 627
Fog lights
Replacing light bulbs........................666
Switch ...................................................... 233
Wattage.................................................. 763
Footwell light............................................ 519
Four-wheel drive system ................... 322
Front passenger occupant
classification system .......................... 139
Front passenger’s seat belt
reminder light...................................... 692
Front seats
Adjustment............................................... 63
Driving position memory.................. 78
Front side marker light Replacing light bulbs........................ 667
Wattage.................................................. 763
Front turn signal lights
Replacing light bulbs....................... 668
Switch ........................................................ 192
Wattage.................................................. 763
Fuel
Capacity................................................. 754
Fuel gauge ............................................. 195
Fuel pump shut off system ............684
Gas station information..................836
Information............................................ 764
Refueling ................................................. 109 Fuel door ................................................... 109
Fuel filler door ......................................... 109
Fuel pump shut off system................. 684
Fuses .......................................................... 647
Garage door opener .......................... 567
Gas station information .....................836
Gauges ...................................................... 195
Glove box ................................................ 525
Glove box light ...................................... 525
Hands-free system for cellular
phones
*................................................485
Hazard lights
Switch ...................................................... 676
Head restraints
Adjustment ...............................................82
Headlights cleaner............................... 245
Headlights Adaptive front lighting
system...................................................223
Discharge headlights
precautions ........................................674
Replacing light bulbs ....................... 663
Switch ........................................................ 219
Wattage ..................................................763
Heaters Seat heaters ........................................... 551
Side mirror................................................ 411
Heated steering ................................. 549
Height control Rear height control air
suspension .......................................... 316
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