Page 316 of 496
3166-3. Do-it-yourself maintenance
PRIUS +_OM_OM47888E_(EE)
WARNING
When raising the vehicle, do not set the
floor jack under the rear suspension.Rear suspension
Front
Page 317 of 496
3176-3. Do-it-yourself maintenance
PRIUS +_OM_OM47888E_(EE)
6
Maintenance and care
Engine compar tment
■12-volt battery
→ P. 327
Engine coolant reservoir
(→ P. 323)
Engine oil level dipstick (→ P. 319)
Engine oil filler cap (→ P. 321)
Power control unit coolant
reservoir ( →P. 323) Fuse box (
→P. 353)
Radiator ( →P. 324)
Condenser ( →P. 324)
Electric cooling fans
Washer fluid tank ( →P. 325)1
2
3
4
5
6
7
8
9
Page 318 of 496
3186-3. Do-it-yourself maintenance
PRIUS +_OM_OM47888E_(EE)■
Removing the engine compartment cover
■Installing the clips
Push up center portion
Insert
Press
Engine compartment cover
1
2
3
NOTICE
■After installing an engine compartment cover
Make sure that the cover is securely installed in its original position.
Page 319 of 496
3196-3. Do-it-yourself maintenance
PRIUS +_OM_OM47888E_(EE)
6
Maintenance and care
With the engine at operating temperature and turned off, check the oil
level on the dipstick.
■Checking the engine oilPark 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 pro-
truding areas ( in the illus-
tration) pointing towards
engine.
Engine oil
1
2
3
4
1
Page 320 of 496
3206-3. Do-it-yourself maintenance
PRIUS +_OM_OM47888E_(EE)
Holding a rag under the end, pull the dipstick out and check the
oil level.Low
Normal
Excessive
The shape of the dipstick may differ depending on the type of vehicle or
engine.
Wipe the dipstick and reinsert it fully.
5
1
2
3
XFlat dipstick XNon-flat dipstick
Measuring side
6
Page 321 of 496

3216-3. Do-it-yourself maintenance
PRIUS +_OM_OM47888E_(EE)
6
Maintenance and care
■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.
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 consumption
A certain amount of engine oil will be consumed while driving. In the following
situations, oil consumption may increase, and engine oil may need to be
refilled in between oil maintenance intervals.
●When the engine is new, for example directly after purchasing the vehicle or
after replacing the engine
● If low quality oil or oil of an inappropriate viscosity is used
● When driving at high engine speeds or with a heavy load, or when driving
while accelerating or decelerating frequently
● When leaving the engine idling for a long time, or when driving frequently
through heavy traffic
Engine oil selection→ P. 455
Oil quantity (Low → Full)1.5 L (1.6 qt., 1.3 lmp. qt.)
ItemsClean funnel
1
2
3
Page 322 of 496

3226-3. Do-it-yourself maintenance
PRIUS +_OM_OM47888E_(EE)
WARNING
■ Used engine oil
●Used engine oil contains potentially harmful contaminants which may
cause skin disorders such as inflammation and 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 dispose of used oil and filters in household trash, in sewers or onto the
ground. Call any authorized Toyota deal er or repairer, or another duly
qualified and equipped professional, service station or auto parts store for
information concerning 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 a 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 tightened.
Page 323 of 496

3236-3. Do-it-yourself maintenance
PRIUS +_OM_OM47888E_(EE)
6
Maintenance and care
The coolant level is satisfactory if it is between the full (“FULL” or “F”)
and low (“LOW” or “L”) lines on the reservoir when the hybrid system
is cold.
■Engine coolant reservoirReservoir cap
“FULL” line
“LOW” line
If the level is on or below the
“LOW” line, add coolant up to
the “FULL” line. ( →P. 444)
■
Power control unit coolant reservoir Reservoir cap
“F” line
“L” line
If the level is on or below the “L”
line, add coolant up to the “F”
line. ( →P. 444)
■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.
“Toyota Super Long Life Coolant” is a mixture of 50% coolant and 50% deion-
ized water. (Minimum temperature: -35 °C [-31 °F])
For more details about coolant, contact any authorized Toyota dealer or
repairer, or another duly qualified and equipped professional.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, engine/power control unit coolant reservoir
caps, drain cock and water pump.
If you cannot find a leak, have any authorized Toyota dealer or repairer, or
another duly qualified and equipped professional, test the cap and check for
leaks in the cooling system.
Coolant
1
2
3
1
2
3