Page 422 of 600
4227-3. Do-it-yourself maintenance
PRIUS c_U
Engine compartment
Fuse boxes (P.   4 5 4 )
Engine oil filler cap ( P.   4 2 4 )
Engine coolant radiator cap
Power control unit 
coolant reservoir ( P.   4 2 6 )
Brake fluid reservoir ( P.   4 2 8 )
Engine coolant reservoir  ( P.   4 2 6 ) Engine/power  control  unit
coolant radiator (
P. 428)
Electric cooling fan
Condenser ( P. 428)
Engine oil level dipstick ( P. 423)
Washer fluid tank ( P. 430)1
2
3
4
5
6
7
8
9
10
11 
     
        
        Page 423 of 600
4237-3. Do-it-yourself maintenance
7
Maintenance and care
PRIUS c_U
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.
Reinsert the dipstick fully.
Holding  a  rag  under  the  end,  pull  the  dipstick  out  and  check  th e
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.
Engine oil
1
2
3
4
5
1
2
3
6 
     
        
        Page 424 of 600

4247-3. Do-it-yourself maintenance
PRIUS c_U■
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 fille r 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  ne ed  to  be
refilled in between oil maintenance intervals.
● When the engine is new, for example directly after purchasing t he 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. 539
Oil quantity
(Low  Full) 1.6 qt. (1.5 L, 1.3 Imp. qt.)
Item
Clean funnel
1
2
3 
     
        
        Page 425 of 600

4257-3. Do-it-yourself maintenance
7
Maintenance and care
PRIUS c_U
WARNING
■Used engine oil
● Used  engine  oil  contains  potentially  harmful  contaminants  which  may
cause  skin  disorders  such  as  inflammation  and  skin  cancer,  so  c are
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 sewe rs or onto the
ground.  Call  your  Toyota  dealer,  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 v ehicle.
● Be sure the engine oil filler cap is properly tightened. 
     
        
        Page 539 of 600

5399-1. Specifications
9
Vehicle specifications
PRIUS c_U
*: The engine oil  capacity is a reference  quantity to be  used when changing
the  engine  oil.  Warm  up  the  engine  and  turn  off  the  hybrid  system,  wait
more than 5 minutes, and check the oil level on the dipstick.
■
Engine oil selection
“Toyota  Genuine  Motor  Oil”  is  used  in  your  Toyota  vehicle.  Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to sat isfy
the following grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE  0W-20  is  the  best  choice
for  good  fuel  economy  and
good starting in cold weather.
If  SAE  0W-20  is  not  available,
SAE  5W-20  oil  may  be  used.
However,  it  must  be  replaced
with  SAE  0W-20  at  the  next  oil
change.
Hybrid battery (traction battery)
Type Nickel-metal hydride battery
Voltage7.2 V/module
Capacity 6.5 Ah (3HR)
Quantity20 modules
Nominal voltage 144 V
Lubrication system
Oil  capacity  (Drain  and
refill reference
*)
With filter
Without filter 3.9 qt. (3.7 L, 3.3 Imp. qt.)
3.6 qt. (3.4 L, 3.0 Imp. qt.)
Outside temperature