Page 653 of 908

ES350 300h_OM_OM33A01U_(U)
6536-1. Maintenance and care
6
Maintenance and care
NOTICE
■To prevent paint deterioration and corrosion on the body and components (alu-
minum wheels etc.)
●Wash the vehicle immediately in the following cases:
• After driving near the sea coast
• After driving on salted roads
• If coal tar or tree sap is present on the paint surface
• If dead insects, insect droppings or bird droppings are present on the paintsurface
• After driving in an area contaminated with soot, oily smoke, mine dust, iron
powder or chemical substances
• If the vehicle becomes heavily soiled with dust or mud
• If liquids such as benzene and gasoline are spilled on the paint surface
●If the paint is chipped or scratched, have it repaired immediately.
●To prevent the wheels from corroding, remove any dirt and store in a place with
low humidity when storing the wheels.
■Cleaning the exterior lights
●Wash carefully. Do not use organic subs tances or scrub with a hard brush.
This may damage the surfaces of the lights.
●Do not apply wax to the surfaces of the lights.
Wax may cause damage to the lenses.
■When using an automatic car wash (with rain-sensing windshield wipers)
Turn off the wiper switch.
If AUTO mode is selected, the wipers may operate and the wiper blades may be
damaged.
■When cleaning the windshield
Raise the wipers in line with the windshield. ( P. 3 2 9 )
Failure to do so may result in dama ge to the wipers and/or the hood.
Page 659 of 908
ES350 300h_OM_OM33A01U_(U)
6596-2. 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 repr oductive 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 br ain damage. Wash your hands after
handling. ( P. 6 8 5 , 6 9 0 )
Page 660 of 908

660
ES350 300h_OM_OM33A01U_(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 8 5 )
Brake fluidIs the brake fluid at the correct level?
( P. 6 8 4 )
Engine coolant (gasoline vehicles)Is the engine coolant at the correct
level? ( P. 6 8 1 )
Engine/power control unit coolant
(hybrid vehicles)Is the engine/power control unit coolant
at the correct level? ( P. 6 8 1 )
Engine oilIs the engine oil at the correct level?
( P. 6 76 )
Exhaust systemThere should not be any fumes or
strange sounds.
Radiator/condenserThe radiator and condenser should be
free from foreign objects. ( P. 6 8 3 )
Wa s h e r f l u i dIs there sufficient washer fluid?
( P. 6 8 9 )
Luggage compartment
ItemsCheck points
12-volt battery (hybrid vehicles)Check the connections. ( P. 6 9 0 )
Page 666 of 908
666
ES350 300h_OM_OM33A01U_(U)
6-3. Do-it-yourself maintenance
Engine oil level (P. 6 76 )
• “Toyota Genuine Motor Oil” or
equivalent
•Rag or paper towel
• Funnel (used only for adding engine oil)
Fuses ( P. 7 1 2 )• Fuse with same amperage rating as
original
Light bulbs ( P. 7 2 4 )
• Bulb with same number and wattage
rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Radiator and condenser ( P. 6 8 3 )
Tire inflation pressure ( P. 7 0 3 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 6 8 9 )
• 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
Page 667 of 908

ES350 300h_OM_OM33A01U_(U)
6676-3. 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 touc h the engine, radiator, exhaust manifold,
etc. right after driving as they may be hot. Oil and ot her 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.
Page 673 of 908
673
ES350 300h_OM_OM33A01U_(U)
6-3. Do-it-yourself maintenance
6
Maintenance and care
Engine compartment
Gasoline vehicles (2GR-FE engine)
Washer fluid tank (P. 689)
Engine oil filler cap (P. 6 7 8 )
Engine oil level dipstick (P. 6 76 )
Engine coolant reservoir (P. 6 8 1 ) Brake fluid reservoir
(P. 684)
Fuse box ( P. 712)
12-volt battery ( P. 685)
Electric cooling fans
Condenser ( P. 683)
Radiator ( P. 683)1
2
3
4
5
6
7
8
9
10
Page 674 of 908
674
ES350 300h_OM_OM33A01U_(U)
6-3. Do-it-yourself maintenance
Hybrid vehicles (2AR-FXE engine)
■12-volt battery (hybrid vehicles)
P. 6 9 0
Washer fluid tank ( P. 689)
Fuse boxes ( P. 712)
Power control unit coolant
reservoir ( P. 6 8 1 )
Engine oil level dipstick (P. 6 76 )
Engine oil filler cap (P. 6 7 8 ) Engine coolant reservoir
(P. 6 8 1 )
Brake fluid reservoir (P. 684)
Power control unit coolant
radiator ( P. 683)
Electric cooling fans
Condenser ( P. 683)
Engine coolant radiator (P. 683)1
2
3
4
5
6
7
8
9
10
11
Page 676 of 908
676
ES350 300h_OM_OM33A01U_(U)
6-3. Do-it-yourself maintenance
With 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.
Gasoline vehicles
After warming up the engine and turning it off, wait more than 5 minutes for
the oil to drain back into the bottom of the engine.
Hybrid vehicles
After warming up the engine and turning off the hybrid system, wait more than
5 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.
Engine oil
1
2
Gasoline vehiclesHybrid vehicles
3
4