radiator Lexus GX460 2010 Scheduled Maintenance Guide / LEXUS 2010 GX460 OWNERS MANUAL (OM60E69U)

255
2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60E69U)
■Approach warning
In the following instances, there is a possibility that the warnings will not occur:
●When the speed of the vehicle ahead matches or exceeds your vehicle speed
●When the vehicle ahead is traveling at an extremely slow speed
●Immediately after the cruise control speed was set
●At the instant the accelerator is applied
■Certification
For vehicles sold in the U.S.A.
FCC ID: HYQDNMWR004
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Radio frequency radiation exposure Information:
This equipment complies with FCC radiatio n exposure limits set forth for an uncon-
trolled environment.
This equipment should be in stalled and operated with minimum distance of 20 cm
between the radiator (antenna) and your body.
This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
For vehicles sold in Canada
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must a ccept any interference, including interfer-
ence that may cause undesired operation of the device.

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2-4. Using other driving systems
GX460_U.S.A. (OM60E69U)
■Obstacles not detected
The system cannot detect plastic obstacles such as pylons. There may also be occa-
sions when the system cannot detect pedestrians, animals, bicycles, motorcycles,
trees, or snowdrifts.
■When there is a malfunction in the system
Warning lights and/or warning mess ages will turn on or flash. (P. 6 8 6 , 6 9 8 )
■Certification
For vehicles sold in the U.S.A. 
FCC ID: HYQDNMWR004
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Radio frequency radiation exposure Information:
This equipment complies with FCC radiatio n exposure limits set forth for an uncon-
trolled environment.
This equipment should be installed and op erated with minimum distance of 20 cm
between the radiator (antenna) and your body.
This transmitter must not be co-located or operating in conjunction with any other
antenna or transmitter.
For vehicles sold in Canada 
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.

459
3-3. Using the Bluetooth® audio system
3
Interior features
GX460_U.S.A. (OM60E69U)
CAUTION
■FCC WARNING
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Radio Frequency Radiation Exposure. This equipment complies with FCC radiation
exposure limits set forth for uncontrolled equipment and meets the FCC radio fre-
quency (RF) Exposure Guidelines in Supplement C to OET65. This equipment has
very low levels of RF energy that it de emed to comply without maximum permissive
exposure evaluation (MPE). But it is desirable that it should be installed and oper-
ated with at least 7.9 in. (20 cm) and mo re between the radiator and person’s body
(excluding extremities: hands, wrists, feet and legs).
This transmitter must not be co-located or operated in conjunction with any other
antenna or transmitter.
■Caution while driving
Do not connect portable players or operate the controls.
NOTICE
■To prevent damage to portable players
Do not leave portable players in the vehicle. The temperature inside the vehicle
may become high, resulting in damage to the player.

480
3-4. Using the hands-free system (for cellular phone)
GX460_U.S.A. (OM60E69U)
CAUTION
■FCC WARNING
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Radio Frequency Radiation Exposure. This equipment complies with FCC radiation
exposure limits set forth for uncontrolled equipment and meets the FCC radio fre-
quency (RF) Exposure Guidelines in Supplement C to OET65. This equipment has
very low levels of RF energy that it de emed to comply without maximum permissive
exposure evaluation (MPE). But it is desirable that it should be installed and oper-
ated with at least 7.9 in. (20 cm) and mo re between the radiator and person’s body
(excluding extremities: hands, wrists, feet and legs).
This transmitter must not be co-located or operated in conjunction with any other
antenna or transmitter.
■Caution while driving
Do not use a cellular phone or connect the Bluetooth
® phone.
NOTICE
■To prevent damage to cellular phones
Do not leave cellular phones in the vehicle. The temperature inside the vehicle may
become high, resulting in damage to the phone.

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4-2. Maintenance
4
Maintenance and care
GX460_U.S.A. (OM60E69U)
General maintenance
Engine compartment
ItemsCheck points
BatteryCheck the indicator and 
connections. ( P. 622)
Brake fluidIs the brake fluid at the correct level? 
(  P. 6 1 8 )
Engine coolantIs the engine coolant at the correct
level? ( P. 6 1 5 )
Engine oilIs the engine oil at the correct level? 
( P. 6 1 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 0 )
Radiator/condenser
The radiator and condenser should
be free from foreign objects. 
( P. 6 1 7 )
Wa s h e r f l u i dIs there sufficient washer fluid? 
(  P. 6 2 6 )
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 recommend ed that any problem you notice
should be brought to the attention of your Lexus dealer or qualified service
shop for advice.

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4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60E69U)
ItemsPa r t s a n d t o o l s
Fuses( P. 6 4 5 )• Fuse with same amperage rating as
original
Headlight aim ( P. 6 5 8 )• Phillips-head screwdriver
Light bulbs( P. 6 6 0 )
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Power steering fluid level 
( P. 6 2 0 )
• Automatic transmission fluid
DEXRON® II or III
•Rag or paper towel
• Clean funnel
Radiator and condenser ( P. 6 1 7 )
Tire inflation pressure ( P. 6 3 4 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 6 2 6 )
• Water washer fluid containing anti-
freeze (for winter use)
• Funnel (used only for adding water or washer fluid)

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60E69U)
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 1 7 )
■Safety glasses
Wear safety glasses to prevent flying or fall ing material, fluid spray, etc. from getting
in your eyes.

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4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60E69U)
Engine compartment
Engine coolant reservoir
( P. 615)
Engine oil level dipstick 
( P. 610)
Engine oil filler cap 
( P. 611)
Brake fluid reservoir 
( P. 6 1 8 )Fuse box ( P. 645)
Battery ( P. 622)
Radiator ( P. 617)
Condenser ( P. 617)
Electric cooling fan
Washer fluid tank ( P. 6 2 6 )
Power steering fluid reservoir 
( P. 6 2 0 )

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4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60E69U)
■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock and
water pump. 
If you cannot find a leak, have your Lexus dealer test the cap and check for leaks in
the cooling system.
CAUTION
■When the engine is hot
Do not remove the engine coolant reservoir cap. 
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing burns or other injuries.
NOTICE
■When adding the coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water
and antifreeze must be used to provide proper lubrication, corrosion protection
and cooling. Be sure to read the antifreeze or coolant label.
■If you spill coolant
Be sure to wash it off with water to prevent it damage to parts or paint.

617
4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60E69U)
Radiator and condenserCheck the radiator and condenser and clear any foreign objects. 
If either of the above parts is extremely dirty or you are not sure of their
condition, have your vehicle checked by your Lexus dealer.
CAUTION
■When the engine is hot
Do not touch the radiator or condense r as they may be hot and cause burns.