maintenance Lexus GX460 2013 Owner's Guide

607
4-2. Maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
General maintenance
Engine compartment
ItemsCheck points
BatteryMaintenance-free. (→P. 631)
Brake fluidIs the brake fluid at the correct level?
(→ P. 6 2 7 )
Engine coolantIs the engine coolant at the correct
level? (→ P. 6 2 4 )
Engine oilIs the engine oil at the correct level?
(→ P. 6 2 0 )
Exhaust systemThere should not be any fumes or
strange sounds.
Power steering fluidIs the power steering fluid at the
correct level? ( →P. 6 2 9 )
Radiator/condenser
The radiator and condenser should
be free from foreign objects.
( →P. 6 2 6 )
Wa s h e r f l u i dIs there sufficient washer fluid?
(→ P. 6 3 5 )
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.
GX460_OM_OM60J63U_(U).book Page 607 Thursday, March 29, 2012 9:10 AM

608
4-2. Maintenance
GX460_OM_OM60J63U_(U)
Vehicle interior
ItemsCheck points
Accelerator pedal
• The accelerator pedal should move smoothly (without uneven pedal
effort or catching).
Automatic transmission “Park”
mechanism• When parked on a slope and the shift lever is in P, is the vehicle
securely stopped?
Brake pedal
• Does the brake pedal move
smoothly?
• Does the brake pedal have appro- priate clearance from the floor?
• Does the brake pedal have the cor- rect amount of free play?
Brakes
• The vehicle should not pull to one side when the brakes are applied.
• The brakes should work effectively.
• The brake pedal should not feel
spongy.
• The brake pedal should not get too
close to the floor when the brakes
are applied.
GX460_OM_OM60J63U_(U).book Page 608 Thursday, March 29, 2012 9:10 AM

609
4-2. Maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
ItemsCheck points
Head restraints• Do the head restraints move smoothly and lock securely?
Indicators/buzzers• Do the indicators and buzzers
function properly?
Lights• Do all the lights come on?
Pa r k i n g b r a ke
• Does the parking brake lever or pedal move smoothly?
• When parked on a slope and the parking brake is on , is the vehicle
securely stopped?
Seat belts
• Do the seat belts operate smoothly?
• The seat belts should not be dam- aged.
Seats• Do the seat controls operate prop-erly?
Steering wheel
• Does the steering wheel rotate smoothly?
• Does the steering wheel have the correct amount of free play?
• There should not be any strange
sounds coming from the steering
wheel.
GX460_OM_OM60J63U_(U).book Page 609 Thursday, March 29, 2012 9:10 AM

610
4-2. Maintenance
GX460_OM_OM60J63U_(U)
Vehicle exterior
ItemsCheck points
Doors• Do the doors operate smoothly?
Engine hood• Does the engine hood lock system work properly?
Fluid leaks
• There should not be any signs of fluid leakage after the vehicle has
been parked.
Ti r e
• Is the tire inflation pressure cor-rect?
• The tires should not be damaged or
excessively worn.
• Have the tires been rotated according to the maintenance
schedule?
• The wheel nuts should not be loose.
CAUTION
■If the engine is running
Turn off the engine and ensure that there is adequate ventilation before performing
maintenance checks.
GX460_OM_OM60J63U_(U).book Page 610 Thursday, March 29, 2012 9:10 AM

611
4-2. Maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which include
OBD (On Board Diagnostics) checks. The OBD system monitors the oper-
ation of the emission control system.
■If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere in
the emission control system. Your vehicle may not pass the I/M test
and may need to be repaired. Cont act your Lexus dealer to service
the vehicle.
■ Your vehicle may not pass the I/M test in the following situations:
● When the battery is disconnected or discharged
Readiness codes that are set du ring ordinary driving are erased.
Also, depending on your driving habits, the readiness codes may
not be completely set.
● When the fuel tank cap is loose
The malfunction indicator lamp comes on a temporary malfunc-
tion and your vehicle may not pass the I/M test.
■ When the malfunction indicator lamp still remains on after several
driving trips
The error code in the OBD system will not be cleared unless the
vehicle is driven 40 or more times.
■ If your vehicle does not pass the I/M test
Contact your Lexus dealer to prepare the vehicle for re-testing.
GX460_OM_OM60J63U_(U).book Page 611 Thursday, March 29, 2012 9:10 AM

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

613
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_OM_OM60J63U_(U)
ItemsParts and tools
Engine coolant level (→P. 6 2 4 )
• “Toyota Super Long Life Coolant”
or similar high quality ethylene gly-
col based non-silicate, non-amine,
non-nitrite and non-borate coolant
with long-life hybrid organic acid
technology
For the U.S.A.:
“Toyota Super Long Life Coolant”
is pre-mixed with 50 % coolant
and 50 % deionized water.
For Canada:
“Toyota Super Long Life Coolant”
is pre-mixed with 55 % coolant and
45 % deionized water.
• Funnel (used only for adding cool-
ant)
Engine oil level ( →P. 6 2 0 )
• “Toyota Genuine Motor Oil” or
equivalent
•Rag or paper towel
• Funnel (used only for adding engine oil)
GX460_OM_OM60J63U_(U).book Page 613 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

616
4-3. Do-it-yourself maintenance
GX460_OM_OM60J63U_(U)
NOTICE
■If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to
dirt in the air. Also a backfire could cause a fire in the engine compartment.
GX460_OM_OM60J63U_(U).book Page 616 Thursday, March 29, 2012 9:10 AM