5389-1. Specifications
PRIUS c_U
Oil viscosity (0W-20 is explained here as an example):
• The  0W  in  0W-20  indicates  the  characteristic  of  the  oil  which allows cold startability. Oils wi th a lower value before the W allow
for easier starting of the engine in cold weather.
• The  20  in  0W-20  indicates  the  vi scosity  characteristic  of  the oil
when the oil is at high temperature. An oil with a higher visco sity
(one  with  a  higher  value)  may  be  better  suited  if  the  vehicle  i s
operated at high speeds, or un der extreme load conditions.
How to read oil container label:
The  International  Lubricant
Specification  Advisory  Commit-
tee  (ILSAC)  Certification  Mark
is added to  some oil  containers
to  help  you  select  the  oil  you
should use.
Cooling system
Capacity Gasoline engine
Power control unit 5.6 qt. (5.3 L, 4.7 Imp. qt.)
1.7 qt. (1.6 L, 1.4 Imp. qt.)
Coolant type Use either of the following:
• “Toyota Super Long Life Coolant” 
• A  similar  high-quality  ethylene  glycol-
based  non-silicate,  non-amine,  non-
nitrite,  and  non-borate  coolant  with  long-
life hybrid organic acid technology
Do not use plain water alone. 
5539-1. Specifications
9
Vehicle specifications
PRIUS c_U
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sure Tire  pressure  when  the  vehicle  has  been
parked  for  three  hours  or  more,  or  has  not
been driven more than 1 mile or 1.5 km under
that condition
Maximum  inflation
pressure The  maximum  cold  infla
ted  pressure  to  which
a tire may be inflated, shown on the sidewall of
the tire
Recommended  infla-
tion pressure Cold tire inflation pressure recommended by a
manufacturer
Accessory weight The combined weight (in excess of those stan-
dard  items  which  may  be  replaced)  of  hybrid
transmission,  power  steering,  power  brakes,
power  windows,  power  seats,  radio  and
heater, to the extent that these items are avail-
able  as  factory-insta
lled  equipment  (whether
installed or not)
Curb weight The  weight  of  a  motor  vehicle  with  standard
equipment, including th
e maximum capacity of
fuel,  oil  and  coolant,  and  if  so  equipped,  air
conditioning  and  additional  weight  optional
engine
Maximum loaded vehi-
cle weight The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal  occupant
weight 150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
* that
follows
Occupant distribution Distribution of o
ccupants in a vehicle as speci-
fied in the third column of Table 1
* below
Production  options
weight The  combined  weight  of  installed  regular  pro-
duction  options  weighing  over  5  lb.  (2.3  kg)  in
excess  of  the  standard  items  which  they
replace,  not  previously  considered  in  curb
weight  or  accessory  weight,  including  heavy
duty  brakes,  ride  levelers,  roof  rack,  heavy
duty battery, and special trim 
588Alphabetical index
PRIUS c_U
Eco drive mode ........................ 201
Electric power steering ........... 263
Electronic keyIf the electronic key does not operate properly ........... 517
Emergency flashers Switch ................................... 466
Emergency, in case of
If a warning buzzer sounds ........................ 477, 485
If a warning light 
turns on .............................. 477
If a warning message is  displayed ............................ 485
If the electronic key does  not operate properly ........... 517
If the hybrid system will 
not start .............................. 515
If the vehicle becomes  stuck ................................... 530
If the vehicle 12-volt  battery is discharged .......... 519
If you have a flat tire  ............ 502
If you lose your keys ............. 120
If you think something is 
wrong.................................. 476
If your vehicle has to 
be stopped in an 
emergency.......................... 467
If your vehicle needs to 
be towed ............................. 469
If your vehicle overheats ....... 526 Engine
Compartment ........................ 420
Hood ..................................... 417
How to start the hybrid system ....... ................. 186, 190
Identification number ............ 535
If the hybrid system will  not start .............................. 515
Ignition switch ............... 186, 190
Overheating .......................... 526
Power switch ................ 186, 190
Engine coolant Capacity................................ 538
Checking............................... 424
Preparing and checking before winter ...................... 272
Engine oil
Capacity................................ 537
Checking............................... 421
Preparing and checking before winter ...................... 272
Engine/power control unit  coolant
Capacity................................ 538
Checking............................... 424
Preparing and checking before winter ...................... 272
EPS ........................................... 263
EV drive mode ......................... 197
Event data recorder................... 11
Exclusive jump  starting terminal .................... 519
E