2015 TOYOTA PRIUS PLUG-IN engine

439
4-2. Maintenance
PRIUS PHV_OM_OM47A11U_(U)
4
Maintenance and care
General maintenance
Engine compartment
ItemsCheck points
Brake fluidIs the brake fluid at the correct
level? (oP. 4 7 2 )
Engine/power control unit coolant
Is the engine/power control unit
coolant at the correct level?
(oP. 4 6 9 )
Engine oilIs the engine oil at the correct
level? (oP. 4 6 5 )
Exhaust systemThere should not be any fumes or
strange sounds.
Radiator/condenser
The radiator and condenser
should be free from foreign
objects. (oP. 4 7 1 )
Washer fluidIs there sufficient washer fluid?
(oP. 4 7 4 )
Listed below are the general maintenance items that should be per-
formed at the intervals specified in the “Owner’s Warranty Informa-
tion Booklet” or “Owner’s Manual Supplement/Scheduled
Maintenance Guide”. It is recommended that any problem you notice
should be brought to the attention of your Toyota dealer or qualified
service shop for advice.

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4-2. Maintenance
PRIUS PHV_OM_OM47A11U_(U)
Ve h i c l e e x t e r i o r
ItemsCheck points
Doors • Do the doors operate smoothly?
Engine hood•Does the engine hood lock sys-
tem work properly?
Fluid leaks
•There should not be any signs of
fluid leakage after the vehicle has
been parked.
Tires
•Is the tire inflation pressure cor-
rect?
•The tires should not be dam-
aged or excessively worn.
•Have the tires been rotated
according to the maintenance
schedule?
•The wheel nuts should not be
loose.
Windshield wipers/rear window
wiper
•The wiper blades should not show
any signs of cracking, splitting,
wear, contamination or deforma-
tion.
•The wiper blades should clear the
windshield/rear window without
streaking or skipping.

445
PRIUS PHV_OM_OM47A11U_(U)
4
Maintenance and care
4-3. Do-it-yourself maintenance
Do-it-yourself ser vice precautions
If you perform maintenance by yourself, be sure to follow the correct
procedure as given in these sections.
ItemsParts and tools
12-volt battery condition
(oP. 4 7 6 )
•Grease
•Conventional wrench
(for terminal clamp bolts)
Brake fluid level (oP. 4 7 2 )
•FMVSS No.116 DOT 3 or SAE
J1703 brake fluid
•Rag or paper towel
•Funnel (used only for adding
brake fluid)
Engine/power control unit coolant
level (oP. 4 6 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 technology
For the U.S.A.:
“Toyota Super Long Life Cool-
ant” is pre-mixed with 50% cool-
ant and 50% deionized water.
For Canada:
“Toyota Super Long Life Cool-
ant” is pre-mixed with 55% cool-
ant and 45% deionized water.
•Funnel (used only for adding cool-
ant)

446
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A11U_(U)
ItemsParts and tools
Engine oil level (oP. 4 6 5 )
•“Toyota Genuine Motor Oil” or
equivalent
•Rag or paper towel
•Funnel (used only for adding
engine oil)
Fuses (oP. 4 9 9 )•Fuse with same amperage rating
as original
Light bulbs (oP. 5 1 1 )
•Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Radiator and condenser
(oP. 4 7 1 )
Tire inflation pressure (oP. 4 9 0 )•Tire pressure gauge
•Compressed air source
Washer fluid (oP. 4 7 4 )
•Water or washer fluid containing
antifreeze (for winter use)
•Funnel (used only for adding
water or washer fluid)

447
4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A11U_(U)
4
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
●Make sure that the indicator on the “POWER” switch and the “READY”
indicator are both off.
●Keep hands, clothing and tools away from the moving fan.
●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.
●Do not smoke, cause sparks or expose an open flame to fuel. Fuel fumes
are flammable.
■When working near the electric cooling fans or radiator grille
Be sure the “POWER” switch is off.
With the “POWER” switch in ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant tempera-
ture is high. (oP. 4 7 1 )
■Safety glasses
Wear safety glasses to prevent flying or falling 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.

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4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A11U_(U)
Engine compar tment
■12-volt battery
oP. 4 7 6
Engine coolant reservoir
(oP. 4 6 9 )
Engine oil level dipstick
(oP. 4 6 5 )
Engine oil filler cap
(oP. 4 6 6 )
Power control unit coolant
reservoir (oP. 4 6 9 )
Brake fluid reservoir
(oP. 4 7 2 )
Fuse box (oP. 4 9 9 )
Radiator (oP. 4 7 1 )
Condenser (oP. 4 7 1 )
Electric cooling fans
Washer fluid tank (oP. 4 7 4 )

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4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A11U_(U)
4
Maintenance and care
Engine oil
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. 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.
Flat dipstick: Reinsert the dipstick fully.
Non-flat dipstick: Reinsert the
dipstick fully with its protruding
areas ( in the illustration)
pointing towards the engine.
Holding a rag under the end, pull the dipstick out and check
the oil level.
STEP 1
STEP 2
STEP 3
STEP 4
STEP 4
STEP 5

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4-3. Do-it-yourself maintenance
PRIUS PHV_OM_OM47A11U_(U)
Flat dipstick
Low
Normal
Excessive
The shape of the dipstick may dif-
fer depending on the type of vehi-
cle or engine.
Non-flat dipstick
Low
Normal
Excessive
The shape of the dipstick may dif-
fer depending on the type of vehi-
cle or engine.
Wipe the dipstick and reinsert it fully.
■Adding engine oil
If the oil level is below or near
the low level mark, add engine
oil of the same type as that
already in the engine.
STEP 6