2014 Lexus GX460 radiator

224
GX460_OM_OM60K80U_(U)4-5. Using the driving support systems
■Radar sensor and grille cover
Always keep the sensor and grille cover clean
to ensure that the vehicle-to-vehicle dis-
tance control operates properly . (Some obstructions, such as snow, ice or plastic objects,
cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is cancel ed if an obstruction is detected.
■Warning messages and buzzers for dynamic radar cruise control
Warning messages and buzzers are used to indicate a system malfunction or to inform
the driver of the need for caution while driving. (P. 5 1 4 )
■Certification
For vehicles sold in the U.S.A.
FCC ID: HYQDNMWR004
This device complies with Part 15 of the FC C Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, incl uding interference that may cause undesired
operation.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for compli-
ance could void the user’s authority to operate the equipment.
Radiofrequency radiation exposure Information:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment.
This equipment should be installed 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
This device complies with Industry Canada licence-exempt RSS standards.
Operation is subject to the following two co nditions: (1) this device may not cause inter-
ference, and (2) this device must accept any interference, including interference that
may cause undesired operation of the device. Grille cover
Radar sensor
1
2

362
GX460_OM_OM60K80U_(U)4-5. Using the driving support systems
■Certification
For vehicles sold in the U.S.A.
FCC ID: HYQDNMWR004
This device complies with Part 15 of the FC C Rules. Operation is subject to the following
two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, incl uding interference that may cause undesired
operation.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for compli-
ance could void the user’s authority to operate the equipment.
Radiofrequency radiation exposure Information:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment.
This equipment should be installed 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
This device complies with Industry Canada licence-exempt RSS standards.
Operation is subject to the following two co nditions: (1) this device may not cause inter-
ference, and (2) this device must accept any interference, including interference that
may cause undesired operation of the device.

443
GX460_OM_OM60K80U_(U)6-2. Maintenance
6
Maintenance and care
General maintenance
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 recommende
d that any problem you notice should
be brought to the attention of your Lexu s dealer or qualified service shop for
advice.
Engine compartment
ItemsCheck points
BatteryCheck the connections. ( P. 4 6 0 )
Brake fluidIs the brake fluid at the correct level? ( P. 4 5 7 )
Engine coolantIs the engine coolant at the correct level? ( P. 4 5 5 )
Engine oilIs the engine oil at the correct level? ( P. 4 5 3 )
Exhaust systemThere should not be any fumes or strange sounds.
Power steering fluidIs the power steering fluid at the correct level?
( P. 4 5 9 )
Radiator/condenserThe radiator and condenser should be free from
foreign objects. ( P. 4 5 7 )
Wa s h e r f l u i dIs there sufficient washer fluid? ( P. 4 6 3 )

448
GX460_OM_OM60K80U_(U)6-3. Do-it-yourself maintenance
Headlight aim
(
 P. 4 8 4 )• Phillips-head screwdriver
Light bulbs
( P. 4 8 6 )
• Bulb with same number and wattage rating as original
• Phillips-head screwdriver•Flathead screwdriver
•Wrench
Power steering fluid
level ( P. 4 5 9 )• Automatic transmission fluid DEXRON® II or III
•Rag or paper towel•Clean funnel
Radiator and con-
denser ( P. 4 5 7 )
Tire inflation pres-
sure (P. 4 7 1 )•Tire pressure gauge• Compressed air source
Wa s h e r f l u i d
( P. 4 6 3 )• Water or washer fluid containi ng antifreeze (for winter use)
• Funnel (used only for adding water or washer fluid)
ItemsPa r t s a n d t o o l s

GX460_OM_OM60K80U_(U)
4496-3. Do-it-yourself maintenance
6
Maintenance and care
CAUTION
The engine compartment contains many mechanisms and fluids that may move suddenly,
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 driving
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 com-
partment.
●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 corro-
sive sulfuric acid.
■When working near the electric cooling fans or radiator grille
Be sure the engine switch is off. With the engine 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. 4 5 7 )
■When working on or under the vehicle
Do not get under the vehicle with just the jack supporting it.
Always use automotive jack stands or other solid supports.
■Safety glasses
Wear safety glasses to prevent flying or fallin g material, fluid spray, etc. from getting in
your eyes.
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.

451
GX460_OM_OM60K80U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Engine compartment
Power steering fluid reservoir
(P. 4 5 9 )
Engine oil level dipstick (P. 4 5 3 )
Engine oil filler cap ( P. 4 5 4 )
Brake fluid reservoir ( P. 4 5 7 )
Fuse box ( P. 4 8 1 ) Battery
( P. 4 6 0 )
Radiator ( P. 4 5 7 )
Condenser ( P. 4 5 7 )
Cooling fans
Engine coolant reservoir (P. 4 5 5 )
Wa s h e r f l u i d t a n k ( P. 4 6 3 )1
2
3
4
5
6
7
8
9
10
11

456
GX460_OM_OM60K80U_(U)6-3. Do-it-yourself maintenance
■Coolant selection
Only use “Toyota Super Long Life Coolant”
or a similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life hybrid
organic acid technology.
U.S.A.: “Toyota Super Long Life Coolant” is a mixture of 50 % coolant and 50 % deion-
ized water. (Minimum temperature: -31 F [-35 C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55 % coolant and 45% deion-
ized water. (Minimum temperature: -44 F [-42 C])
For more details about engine coolant, contact your Lexus dealer.
■If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine coolant reservoir caps, drain cock and water
pump. If you cannot find a leak, have your Le xus dealer test the cap and check for leaks in
the cooling system.
CAUTION
■When the engine is hot
Do not remove the radiator cap.
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing serious injuries, such as burns.
NOTICE
■When adding 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 cool-
ing. Be sure to read the antifreeze or coolant label.
■If you spill coolant
Be sure to wash it off with water to pr event it from damage to parts or paint.

GX460_OM_OM60K80U_(U)
4576-3. Do-it-yourself maintenance
6
Maintenance and care
Check 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 condi-
tion, have your vehicle checked by your Lexus dealer.
■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.
Radiator and condenser
CAUTION
■When the engine is hot
Do not touch the radiator or condenser as they may be hot and cause serious injuries,
such as burns.
Brake fluid
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel