Fluid Lexus GX460 2013 User Guide

612
GX460_OM_OM60J63U_(U)
4-3. Do-it-yourself maintenance
Do-it-yourself service precautions
If you perform maintenance yourself, be sure to follow the correct proce-
dure given in these sections.
ItemsParts and tools
Battery condition ( →P. 6 3 1 )
•Warm water
• Baking soda
•Grease
•Conventional wrench
(for terminal clamp bolts)
Brake fluid level ( →P. 6 2 7 )
• FMVSS No.116 DOT 3 or SAE
J1703 brake fluid
•Rag or paper towel
• Funnel (used only for adding brake
fluid)
GX460_OM_OM60J63U_(U).book Page 612 Thursday, March 29, 2012 9:10 AM

614
4-3. Do-it-yourself maintenance
GX460_OM_OM60J63U_(U)
ItemsParts and tools
Fuses(→ P. 6 5 5 )• Fuse with same amperage rating as
original
Headlight aim ( →P. 668)• Phillips-head screwdriver
Light bulbs (→ P. 6 7 0 )
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Power steering fluid level (→ P. 6 2 9 )
• Automatic transmission fluid
DEXRON® II or III
•Rag or paper towel
• Clean funnel
Radiator and condenser ( →P. 6 2 6 )
Tire inflation pressure ( →P. 643)• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( →P. 6 3 5 )
• Water or washer fluid containing
antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)
GX460_OM_OM60J63U_(U).book Page 614 Thursday, March 29, 2012 9:10 AM

615
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury,
observe the following precautions:
■When working on the engine compartment
●Keep hands, clothing, and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator, exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easily, such as paper or rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.
■When working near the electric cooling fans or radiator grille:
Be sure the “ENGINE START STOP” switch is off.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fans may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. (→P. 6 2 6 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in your eyes.
GX460_OM_OM60J63U_(U).book Page 615 Thursday, March 29, 2012 9:10 AM

618
4-3. Do-it-yourself maintenance
GX460_OM_OM60J63U_(U)
Engine compartment
Engine coolant reservoir(→P. 6 2 4 )
Engine oil level dipstick (→P. 6 2 0 )
Engine oil filler cap (→P. 6 2 1 )
Brake fluid reservoir (→P. 6 2 7 )Fuse box ( →P. 655)
Battery ( →P. 6 3 1 )
Radiator ( →P. 6 2 6 )
Condenser ( →P. 6 2 6 )
Electric cooling fan
Washer fluid tank ( →P. 635)
Power steering fluid reservoir (→P. 6 2 9 )
GX460_OM_OM60J63U_(U).book Page 618 Thursday, March 29, 2012 9:10 AM

627
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
Brake fluid■ Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
lines on the tank.
■ Adding fluid
Make sure to check the fluid type and prepare the necessary item.
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel
GX460_OM_OM60J63U_(U).book Page 627 Thursday, March 29, 2012 9:10 AM

628
4-3. Do-it-yourself maintenance
GX460_OM_OM60J63U_(U)
■Brake fluid can absorb moisture from the air
Excess moisture in the fluid can cause a dangerous loss of braking efficiency. Use
only newly opened brake fluid.
CAUTION
■When filling the reservoir
Take care because brake fluid can harm your hands or eyes and damage painted
surfaces.
If fluid gets on your eyes, flush the affected area with clean water immediately.
If you still experience discomfort, see a doctor.
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.
GX460_OM_OM60J63U_(U).book Page 628 Thursday, March 29, 2012 9:10 AM

629
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
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]).
GX460_OM_OM60J63U_(U).book Page 629 Thursday, March 29, 2012 9:10 AM

630
4-3. Do-it-yourself maintenance
GX460_OM_OM60J63U_(U)■
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
GX460_OM_OM60J63U_(U).book Page 630 Thursday, March 29, 2012 9:10 AM

635
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
Washer fluidIf any washer does not work or the
warning message appears on the
multi-information display, the
washer tank may be empty. Add
washer fluid.
CAUTION
■When refilling the washer fluid
Do not refill the washer fluid when the engine is hot or running, as the washer fluid
contains alcohol and may catch fire if spilled on the engine etc.
NOTICE
■Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces.
■Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bottle.
GX460_OM_OM60J63U_(U).book Page 635 Thursday, March 29, 2012 9:10 AM

5
When trouble arises
691
5-1. Essential information
GX460_OM_OM60J63U_(U)
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
■Visible symptoms
● Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points
higher than normal
■ Audible symptoms
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
■ Operational symptoms
● Engine missing, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, sp ongy feeling, pedal almost touches
the floor
GX460_OM_OM60J63U_(U).book Page 691 Thursday, March 29, 2012 9:10 AM