engine Lexus ES300h 2014 Owner's Manual

ES350_300h_OM_OM33A60U_(U)
6676-2. Maintenance
6
Maintenance and care
CAUTION
■If your vehicle is not properly maintained
Improper maintenance could result in serious damage to the vehicle and possible
death or serious injury.
■Handling of the 12-volt battery
●Engine exhaust, some of its constituents, and a wide variety of automobile com-
ponents contain or emit chemicals known to the State of California to cause can-
cer and birth defects and other reproductive harm. Work in a well ventilated area.
●Oils, fuels and fluids contained in vehicles as well as waste produced by compo-
nent wear contain or emit chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm. Avoid exposure and wash
any affected area immediately.
●12-volt battery posts, terminals and related accessories contain lead and lead
compounds which are known to cause brain damage. Wash your hands after
handling. (→P. 693, 698)

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ES350_300h_OM_OM33A60U_(U)
6-2. Maintenance
General maintenance
Listed below are the general maintenance items that should be per-
formed at the intervals specified in the “Warranty and Service Guide”
or “Owner’s Manual Supplement”. It is recommended that any prob-
lem you notice should be brought to the attention of your Lexus dealer
or qualified service shop for advice.
Engine compartment
ItemsCheck points
12-volt battery (gasoline vehicles)Check the battery fluid level and
connections. ( →P. 6 9 3 )
Brake fluidIs the brake fluid at the correct level?
(→ P. 6 9 2 )
Engine coolant (gasoline vehicles)Is the engine coolant at the correct
level? ( →P. 6 8 9 )
Engine/power control unit coolant
(hybrid vehicles)Is the engine/power control unit coolant
at the correct level? ( →P. 6 8 9 )
Engine oilIs the engine oil at the correct level?
(→ P. 6 8 4 )
Exhaust systemThere should not be any fumes or
strange sounds.
Radiator/condenserThe radiator and condenser should be
free from foreign objects. ( →P. 6 9 1 )
Wa s h e r f l u i dIs there sufficient washer fluid?
(→ P. 6 9 7 )
Luggage compartment
ItemsCheck points
12-volt battery (hybrid vehicles)Check the connections. ( →P. 6 9 8 )

ES350_300h_OM_OM33A60U_(U)
6716-2. Maintenance
6
Maintenance and care
Ve h i c l e e x t e r i o r
ItemsCheck points
Doors/trunk• Do the doors/trunk operatesmoothly?
Engine hood• Does the engine hood lock systemwork properly?
Fluid leaks
• There should not be any signs of fluidleakage after the vehicle has been
parked.
Ti r e s
• Is the tire inflation pressure correct?
• The tires should not be damaged orexcessively worn.
• Have the tires been rotated accord- ing to the maintenance schedule?
• The wheel nuts should not be loose.
Windshield wipers
• The wiper blades should not show any signs of cracking, splitting, wear,
contamination or deformation.
• The wiper blades should clear the windshield without streaking or skip-
ping.
CAUTION
■If the engine is running
Turn the engine off and ensure that there is adequate ventilation
before performing maintenance checks.

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ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
6
Maintenance and care
Do-it-yourself service precautions
If you perform maintenance by yourself, be sure to follow the correct
procedure as given in these sections.
ItemsPa r t s a n d t o o l s
12-volt battery condition
(gasoline vehicles) (→P. 6 9 3 )
•Warm water
•Baking soda
•Grease
• Conventional wrench
(for terminal clamp bolts)
• Distilled water
12-volt battery condition
(hybrid vehicles) ( →P. 6 9 8 )•Grease
• Conventional wrench (for terminal
clamp bolts)
Brake fluid level ( →P. 692)
•FMVSS No.116 DOT 3 or SAE J1703
brake fluid
• Rag or paper towel
• Funnel (used only for adding brake fluid)
Engine coolant level
(gasoline vehicles) ( →P. 6 8 9 )
• “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 technol-
ogy
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 coolant)
Engine/power control unit coolant level
(hybrid vehicles) ( →P. 6 8 9 )

674
ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
Engine oil level (→P. 6 8 4 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses (→ P. 7 2 1 )• Fuse with same amperage rating as
original
Light bulbs (→ P. 7 3 3 )
• Bulb with same number and wattage
rating as original
• Phillips-head screwdriver
• Flathead screwdriver
•Wrench
Radiator and condenser ( →P. 6 9 1 )
Tire inflation pressure ( →P. 7 1 2 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d (→ P. 6 9 7 )
• Water or washer fluid containing anti-
freeze (for winter use)
• Funnel (used only for adding water or washer fluid)
ItemsPa r t s a n d t o o l s

ES350_300h_OM_OM33A60U_(U)
6756-3. Do-it-yourself maintenance
6
Maintenance and care
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
●Hybrid vehicles: Make sure that the “POWER ON” on the multi-information dis-
play and the “READY” indicator are both off.
●Keep hands, clothing and tools away from the moving fan and engine drive belt.
●Gasoline vehicles: 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.
●Hybrid vehicles: Be careful not to touch the engine, power control unit, 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 and rags, in the engine
compartment.
●Gasoline vehicles: Do not smoke, cause sparks or expose an open flame to fuel
or the 12-volt battery. Fuel and 12-volt battery fumes are flammable.
●Hybrid vehicles: Do not smoke, cause sparks or expose an open flame to fuel.
Fuel fumes are flammable.
●Gasoline vehicles: Be extremely cautious when working on the 12-volt battery. It
contains poisonous and corrosive sulfuric acid.

676
ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
CAUTION
■When working near the electric cooling fans or radiator grille
Be sure the “START STOP ENGINE” <“POWER”> switch is off.
With the “START STOP ENGINE” <“POWER”> 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 9 1 )
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from get-
ting 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.

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ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
CAUTION
■When raising your vehicle
Make sure to observe the following precautions to reduce the possibility of death
or serious injury:
●When using a floor jack, follow the instructions of the manual provided with the
jack.
●Do not use the jack that was supplied with your vehicle.
●Do not put any part of your body underneath the vehicle when it is supported
only by the floor jack.
●Always use floor jack and/or automotive jack stands on a solid, flat, level surface.
●Do not start the engine while the vehicle is supported by the floor
jack.
●Stop the vehicle on level, firm ground, firmly set the parking brake and shift the
shift lever to P.
●Make sure to set the floor jack properly at the jack point.
Raising the vehicle with an improperly positioned floor jack will damage the vehi-
cle and may cause the vehicle to fall off the floor jack.
●Do not raise the vehicle while someone is in the vehicle.
●When raising the vehicle, do not place any object on top of or underneath the
floor jack.
●Lift up the vehicle using a floor jack such as
the one shown in the illustration.

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ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
6
Maintenance and care
Engine compartment
XGasoline vehicles (2GR-FE engine)
Washer fluid tank (→P. 6 9 7 )
Engine oil filler cap (→P. 686)
Engine oil level dipstick (→P. 6 8 4 )
Engine coolant reservoir (→P. 689) Brake fluid reservoir
(→P. 692)
Fuse box ( →P. 721)
12-volt battery ( →P. 693)
Electric cooling fans
Condenser ( →P. 6 9 1 )
Radiator ( →P. 6 9 1 )1
2
3
4
5
6
7
8
9
10

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ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
XHybrid vehicles (2AR-FXE engine)
■12-volt battery (hybrid vehicles)
→P. 6 9 8
Washer fluid tank ( →P. 6 9 7 )
Fuse boxes ( →P. 7 2 1 )
Power control unit coolant
reservoir ( →P. 689)
Engine oil level dipstick (→P. 6 8 4 )
Engine oil filler cap (→P. 686) Engine coolant reservoir
(→P. 689)
Brake fluid reservoir (→P. 692)
Power control unit coolant
radiator ( →P. 6 9 1 )
Electric cooling fans
Condenser ( →P. 6 9 1 )
Engine coolant radiator (→P. 6 9 1 )1
2
3
4
5
6
7
8
9
10
11