2008 Lexus GX470 power steering fluid

117
2-1. Driving procedures
2
When driving
NOTICE
■Avoiding damage to vehicle parts
●Do not turn the steering wheel fully in either direction and hold it there for a long
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 hear a squealing or scraping noise (brake pad wear limit indicators)
Have your Lexus dealer check and replace the brake pads as soon as possible.
The rotor damage can result if the pads are not replaced when needed.
■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 press the brake pedal to slow down the vehicle.
●It may be difficult to control your vehicle.
●The vehicle will make abnormal sounds.
●The vehicle will behave abnormally.
Replace a flat tire with a new one. ( →P. 3 9 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.

313
4-2. Maintenance
4
Maintenance and care
General maintenance
Engine compartment
ItemsCheck points
Battery• Maintenance-free (→P. 333)
Brake fluid• At the correct level? ( →P. 3 3 0 )
Engine coolant• At the correct level? ( →P. 3 2 8 )
Engine oil• At the correct level? ( →P. 3 2 3 )
Exhaust system• No fumes or strange sounds?
Power steering fluid• At the correct level? ( →P. 3 3 1 )
Radiator/condenser/hoses• Not blocked with foreign matter?
(→ P. 3 2 9 )
Wa s h e r f l u i d• At the correct level? ( →P. 335)
Listed below are the general maintenance items that should be performed
at the intervals specified in the “Warranty and Services Guide/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.

318
4-3. Do-it-yourself maintenance
ItemsParts and tools
Engine oil level (→P. 3 2 3 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used
only for adding engine oil)
Fuses (→ P. 3 5 5 )• Fuse with same amperage rating as
original
Power steering fluid level ( →P. 3 3 1 )
• Automatic transmission fluid
DEXRON® II or III
•Rag or paper towel
• Clean funnel
Radiator and condenser ( →P. 3 2 9 )
Tire inflation pressure ( →P. 3 4 3 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( →P. 335)
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

321
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine compartment
Engine oil level dipstick(→P. 323)
Engine oil filler cap (→P. 324)
Brake fluid reservoir (→P. 3 3 0 )
Fuse box ( →P. 355)
Battery ( →P. 333)Condenser ( →P. 329)
Electric cooling fan
Engine coolant reservoir (→P. 328)
Radiator ( →P. 329)
Washer fluid tank ( →P. 335)
Power steering fluid reservoir (→P. 3 3 1 )

331
4-3. Do-it-yourself maintenance
4
Maintenance and care
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 temperature,
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]).
NOTICE
■If the fluid level is low or high
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 problem.

332
4-3. Do-it-yourself maintenance
■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 and remove the reservoir cap 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

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6-1. Specifications
6
Vehicle specifications
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 1.2 in. (30 mm)
Power steering fluidAutomatic transmission fluid DEXRON® II
or III
Ti r e s i z eP265/65R17 110S
Tire inflation pressure
(Recommended cold tire inflation
pressure)
Driving under normal conditions 32 psi (220 kPa, 2.2
kgf/cm2 or bar)
Driving at high speeds above 100 mph (160
km/h) (in countries where such speeds are per-
mitted by law) Add 9 psi (60 kPa, 0.6 kgf/cm
2 or bar) to the
front tires and rear tires. Never exceed the
maximum cold tire inflation pressure indicated
on the tire sidewall.
Wheel size17 × 7 1 /2 JJ
Wheel nut torque83 ft•lbf (112 N•m, 11.5 kgf•m)

448
Alphabetical index
If the vehicle battery is discharged .......................................405
If you have a flat tire ...........................391
If you lose your keys......................... 404
If you think something is wrong ....................................................377
If your vehicle becomes stuck...... 410
If your vehicle needs to be towed ................................................... 372
If your vehicle overheats ............... 408
Engine Compartment ....................................... 321
Engine switch.......................................... 118
Hood........................................................ 320
How to start the engine..................... 118
If the engine will not
start ........................................................ 402
Overheating........................................ 408
Engine compartment cover ............. 322
Engine coolant temperature gauge....................................................... 126
Engine coolant
Capacity...................................................416
Checking ............................................... 328
Preparing and checking before winter ...................................... 176
Engine immobilizer system.................. 70
Engine oil Capacity...................................................415
Checking ............................................... 323
Preparing and checking before winter ...................................... 176
Engine oil maintenance data............ 326
Event data recorder ............................ 379 First-aid kit storage belt ..................... 279
Flat key ......................................................... 22
Floor mats .................................................277
Fluid
Brake ....................................................... 330
Power steering ..................................... 331
Washer................................................... 335
Fog lights
Switch ........................................................ 137
Wattage ................................................. 420
Foot light .................................................. 256
Front passenger’s seat belt reminder light .....................................385
Front passenger occupant
classification system............................ 90
Front seats
Adjustment ............................................... 34
Driving position memory ..................45
Front turn signal lights Wattage ................................................. 420
Fuel Capacity .................................................. 414
Fuel gauge .............................................. 126
Gas station information ................. 456
Information ............................................. 421
Refueling .................................................... 67
Fuel door ......................................................67
Fuel filler door ............................................67
Fuses .......................................................... 355F