Lexus GX460 2012 Owner's Manual

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4-3. Do-it-yourself maintenance
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Maintenance and care
GX460_U.S.A. (OM60J00U)
Engine compartment
Engine coolant reservoir(→P. 6 1 6 )
Engine oil level dipstick (→P. 6 1 1 )
Engine oil filler cap (→P. 6 1 2 )
Brake fluid reservoir (→P. 6 1 9 )Fuse box ( →P. 6 4 7 )
Battery ( →P. 623)
Radiator ( →P. 6 1 8 )
Condenser ( →P. 6 1 8 )
Electric cooling fan
Washer fluid tank ( →P. 6 2 7 )
Power steering fluid reservoir (→P. 621)

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Engine compartment cover■ Removing the engine compartment cover
■ Installing the clips
NOTICE
■After installing an engine compartment cover
Make sure the cover is securely installed in its original position.

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Maintenance and care
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Engine oilWith the engine at operating temperature and turned off, check the oil
level on the dipstick.
■ Checking the engine oil
Park the vehicle on level ground. After warming up the engine
and turning it off, wait more than five minutes for the oil to drain
back into the bottom of the engine.
Holding a rag under the end, pull
the dipstick out.
Wipe the dipstick clean.
Reinsert the dipstick fully.
Holding a rag under the end, pull the dipstick out and check the
oil level.
Wipe the dipstick and reinsert it fully. Low
Full
STEP1
STEP2
STEP3
STEP4
STEP5
STEP6

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Adding engine oil
If the oil level is below or near the
low level mark, add engine oil of
the same type as already in the
engine.
Make sure to check the oil type and prepare the items needed before
adding oil.
Remove the oil filler cap by turning it counterclockwise.
Add engine oil slowly, checking the dipstick.
Install the oil filler cap by turning it clockwise.
Engine oil selection→P. 7 5 5
Oil quantity (Low → Full)1.6 qt. (1.5 L, 1.3 Imp.qt.)
ItemsClean funnel
STEP1
STEP2
STEP3

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Maintenance and care
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■Engine oil consumption
●The amount of engine oil consumed depends on the oil viscosity, the quality of
the oil and the way the vehicle is driven.
●More oil is consumed under driving conditions such as high speeds and fre-
quent acceleration and deceleration.
●A new engine consumes more oil.
●When judging the amount of oil consumption, keep in mind that the oil may
have become diluted, making it difficult to judge the true level accurately.
●Oil consumption: Max. 1.1 qt./600 miles, 0.9 Imp.qt./600 miles (1.0 L per 1000
km).
●If your vehicle consumes more than 1.1 qt. (1.0 L, 0.9 Imp.qt.) every 600 miles
(1000 km), contact your Lexus dealer.

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GX460_U.S.A. (OM60J00U)
■After changing the engine oil (U.S.A. only)
The engine oil maintenance data should be reset. Perform the following proce-
dures:Press the Menu switch ( →P. 212) to change the multi-information display
to blank.
Turn the “ENGINE START STOP” switch off.
While pressing the ODO/TRIP button ( →P. 195), turn the “ENGINE
START STOP” switch to IGNITION ON mode.
Continue to press and hold the button for more than 7 seconds after the
“ENGINE START STOP” switch is turned to IGNITION ON mode.
STEP1
STEP2
STEP3
STEP4
The message shown in the illustration will
appear on the display. After 5 seconds, the
system reset will be completed.

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Maintenance and care
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CAUTION
■Used engine oil
●Used engine oil contains potentially harmful contaminants which may cause skin
disorders such as inflammation or skin cancer, so care should be taken to avoid
prolonged and repeated contact. To remove used engine oil from your skin, wash
thoroughly with soap and water.
●Dispose of used oil and filters only in a safe and acceptable manner. Do not dis-
pose of used oil and filters in household trash, in sewers or onto the ground.
Call your Lexus dealer, service station or auto parts store for information con-
cerning recycling or disposal.
●Do not leave used engine oil within the reach of children.
NOTICE
■To prevent serious engine damage
Check the oil level on regular basis.
■When replacing the engine oil
●Be careful not to spill engine oil on the vehicle components.
●Avoid overfilling, or the engine could be damaged.
●Check the oil level on the dipstick every time you refill the vehicle.
●Be sure the engine oil filler cap is properly retightened.

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Engine coolantThe coolant level is satisfactory if it is between the “F” and “L” lines on the
reservoir when the engine is cold. Reservoir cap
Full
Low
If the level is on or below the “L”
line, add coolant up to the “F” line.
■Coolant selection
Only use “Toyota Super Long Life Coolant” or 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 %
deionized water. (Minimum temperature: -31 °F [-35 °C])
Canada: “Toyota Super Long Life Coolant” is a mixture of 55 % coolant and 45 % deionized water. (Minimum temperature: -44 °F [-42 ° C])
For more details about coolant, contact your Lexus dealer.

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Maintenance and care
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■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 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 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.

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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 condenser as they may be hot and cause serious inju-
ries, such as burns.