Page 538 of 572
538 6-1. Specifications
PRIUS +_OM_OM47841E_(EE)Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Toyota
recommends the use of approved “Toyota Genuine Motor Oil”.
Another motor oil of matching quality can also be used.
Oil grade:
0W-20, 5W-20, 5W-30 and 10W-30:
API grade SL “Energy-Conserving”, SM “Energy-Conserving” or SN
“Resource-Conserving”; or ILSAC multigrade engine oil
15W-40 and 20W-50:
API grade SL, SM or SN multigrade engine oil
Page 539 of 572
539 6-1. Specifications
6
Vehicle specifications
PRIUS +_OM_OM47841E_(EE)Recommended viscosity (SAE):
SAE 0W-20 is filled into your
Toyota vehicle at manufacturing,
and the best choice for good fuel
economy and good starting in
cold weather.
If SAE 0W-20 oil is not available,
SAE 5W-30 oil may be used.
However, it should be replaced
with SAE 0W-20 at the next oil
change.
If you use SAE 10W-30 or a
higher viscosity engine oil in
extremely low temperatures, the
engine may become difficult to
start, so SAE 0W-20, 5W-20 or
5W-30 engine oil is recom-
mended.
Temperature range anticipated before
next oil change
Preferred
Page 540 of 572

540 6-1. Specifications
PRIUS +_OM_OM47841E_(EE)
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 with a lower value before the W allow for easier
starting of the engine in cold weather.
• The 20 in 0W-20 indicates the viscosity characteristic of the oil when
the oil is at high temperature. An oil with a higher viscosity (one with a
higher value) may be better suited if the vehicle is operated at high
speeds, or under extreme load conditions.
How to read oil container labels:
Either or both API registered marks are added to some oil containers
to help you select the proper oil you should use.
API Service Symbol
Top portion: “API SERVICE SN”
means the oil quality designation
by American Petroleum Institute
(API).
Center portion: “SAE 0W-20”
means the SAE viscosity grade.
Lower portion: “Resource-Con-
serving” means that the oil has
fuel-saving and environmental
protection capabilities.
ILSAC Certification Mark
The International Lubricant Speci-
fication Advisory Committee
(ILSAC) Certification Mark is dis-
played on the front of the con-
tainer.
Page 541 of 572
541 6-1. Specifications
6
Vehicle specifications
PRIUS +_OM_OM47841E_(EE)
Cooling system
Ignition system
Capacity
Gasoline
engine
Without an exhaust heat recovery system
6.5 L (6.9 qt., 5.7 Imp.qt.)
With an exhaust heat recovery system
6.9 L (7.3 qt., 6.1 Imp.qt.)
Power
control
unit2.7 L (2.9 qt., 2.4 Imp.qt.)
Coolant typeUse either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-
silicate, non-amine, non-nitrite, and non-borate
coolant with long-life hybrid organic acid technol-
ogy
Do not use plain water alone.
Spark plug
Make DENSO SC20HR11
Gap 1.1 mm (0.043 in.)
NOTICE
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Page 546 of 572
546
6-1. Specifications
PRIUS +_OM_OM47841E_(EE)
Fuel infor mation
Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your Toyota has a fuel tank opening that
only accommodates the special nozzle on unleaded fuel pumps.
If your engine knocks
Consult any authorized Toyota dealer or repairer, or another duly quali-
fied and equipped professional.
You may occasionally notice light knocking for a short time while acceler-
ating or driving uphill. This is normal and there is no need for concern.
Except EU area:
Your vehicle must use only unleaded gasoline.
For optimum engine performance, select unleaded gasoline with a
Research Octane Number of 95 or higher.
EU area:
Your vehicle must use only unleaded gasoline conforming to Euro-
pean standard EN228.
For optimum engine performance, select unleaded gasoline with a
Research Octane Number of 95 or higher.
Page 547 of 572

547 6-1. Specifications
6
Vehicle specifications
PRIUS +_OM_OM47841E_(EE)
NOTICE
Notice on fuel quality
Do not use improper fuels. If improper fuels are used the engine will be
damaged.
Do not use leaded gasoline.
Leaded gasoline will cause the three-way catalytic converter to lose its
effectiveness and emission control system to function improperly.
Gasoline engine (EU area): Bioethanol fuel sold under names such as
“E50” or “E85” and fuel containing a large amount of ethanol should not be
used. The use of these fuels will damage the vehicle’s fuel system. In case
of any doubt, ask any authorized Toyota dealer or repairer, or another duly
qualified and equipped professional.
Gasoline engine (except EU area): Bioethanol fuel sold under names such
as “E50” or “E85” and fuel containing a large amount of ethanol should not
be used. Your vehicle can use gasoline mixed with 10% max ethanol. The
use of fuel with more than 10% ethanol content (E10) will damage the
vehicle’s fuel system. You must ensure that refueling is carried out only
from a source where fuel specification and quality can be guaranteed. In
case of any doubt, ask any authorized Toyota dealer or repairer, or another
duly qualified and equipped professional.
Page 558 of 572

558 Alphabetical index
PRIUS +_OM_OM47841E_(EE)
Bluetooth®*
Bottle holders........................... 351
Brake
Fluid ...................................... 543
Parking brake ........................ 226
Brake assist.............................. 291
Break-in tips ............................. 195
Brightness control
Instrument cluster light
control ................................. 231
Camera
*
Care
Exterior.................................. 376
Interior ................................... 381
Seat belts .............................. 382
Cargo hooks ............................. 371
CD player
*
Chains ....................................... 315
Child restraint system
Baby seats, definition ............ 168
Baby seats, installation ......... 180
Child seats, definition ............ 168
Child seats,
installation........................... 180
Installing child restraint system
with ISOFIX rigid
anchors ............................... 186
Installing child restraint system
with seat belts ..................... 180
Installing child restraint system
with top strap ...................... 188
Junior seats, definition .......... 168
Junior seats,
installation........................... 180Child safety
Airbag precautions ................ 160
Back door precautions ............ 94
Child restraint system ........... 168
Child-protectors ...................... 90
How your child should wear
the seat belt ........................ 121
Installing
child restraints .................... 179
Panoramic roof
precautions ......................... 365
Power window lock switch .... 130
Power window precautions ... 133
Removed electronic key battery
precautions ......................... 426
Seat belt precautions ............ 122
Seat heater precautions........ 362
12-volt battery precautions ... 410
Child-protectors......................... 90
Cleaning
Exterior ................................. 376
Interior................................... 381
Seat belts .............................. 382
Clock ......................................... 358
Condenser ................................ 404
Console box ............................. 348
Cooling system
Engine overheating ............... 522
Hybrid system overheating ... 522
Cruise control
Cruise control........................ 267
Dynamic radar cruise
control................................. 272
Cup holders.............................. 349
Curtain shield airbags ............. 153
Customizable features ............ 548
C
Page 560 of 572

560 Alphabetical index
PRIUS +_OM_OM47841E_(EE)
Engine
Accessory mode ................... 208
Compartment ........................ 397
Hood ..................................... 391
How to start the hybrid
system ................................ 206
Identification number............. 535
If the hybrid system will not
start..................................... 510
Ignition switch ....................... 206
Overheating .......................... 522
“POWER” switch ................... 206
Engine coolant
Capacity ................................ 541
Checking ............................... 402
Preparing and checking
before winter ....................... 313
Engine/power control unit coolant
Capacity ................................ 541
Checking ............................... 402
Preparing and checking
before winter ....................... 313
Engine oil
Capacity ................................ 537
Checking ............................... 398
Preparing and checking
before winter ....................... 313
EPS............................................ 291
EV drive mode switch.............. 213Floor mats ................................ 369
Fluid
Brake .................................... 543
Washer ................................. 405
Fog lights
Replacing light bulbs............. 439
Switch ................................... 258
Wattage ................................ 545
Foot lights ................................ 341
Front fog lights
Replacing light bulbs............. 439
Switch ................................... 258
Wattage ................................ 545
Front passenger’s seat belt
reminder light ........................ 471
Front position lights
Switch ................................... 253
Front seats
Adjustment .............................. 98
Flattening seatbacks ............... 99
Front turn signal lights
Replacing light bulbs............. 439
Switch ................................... 225
Wattage ................................ 545
Fuel
Capacity ................................ 536
Fuel gauge ............................ 228
Information ............................ 546
Refueling............................... 134
Type ...................................... 546
Fuel door .................................. 134
Fuel filler door.......................... 134
Fuses ........................................ 427F