engine TOYOTA PRIUS 2013 3.G Repair Manual

570 6-1. Specifications
PRIUS_OM_OM47791U_(U)
■Engine oil selection
“Toyota Genuine Motor Oil” is used in your Toyota vehicle. Use
Toyota approved “Toyota Genuine Motor Oil” or equivalent to satisfy
the following grade and viscosity.
Oil grade: ILSAC GF-5 multigrade engine oil
Recommended viscosity: SAE 0W-20
SAE 0W-20 is the good 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.
Oil viscosity (0W-20 is explained here as an example):
• The 0W in 0W-20 indicates the characteristic of the oil which allowscold 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.
Outside temperature

572 6-1. Specifications
PRIUS_OM_OM47791U_(U)
Cooling system
Ignition system
Capacity
Gasoline
engine
Without an exhaust heat recovery system
6.9 qt. (6.5 L, 5.7 Imp.qt.)
With an exhaust heat recovery system
7.6 qt. (7.2 L, 6.3 Imp.qt.)
Power
control
unit2.2 qt. (2.1 L, 1.8 Imp.qt.)
Coolant type Use 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 0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.

577
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6
Vehicle specifications
PRIUS_OM_OM47791U_(U)
Fuel infor mation
■Fuel tank opening fo r unleaded gasoline
To help prevent incorrect fueling, your vehicle has a fuel tank opening that
only accommodates the special nozzle on unleaded fuel pumps.
■ Gasoline quality
In very few cases, driveability problems may be caused by the brand of gas-
oline you are using. If driveability problems persist, try changing the brand of
gasoline. If this does not correct the problem, consult your Toyota dealer.
You must only use unleaded gasoline in your vehicle.
Select octane rating 87 (Research Octane Number 91) or higher. Use
of unleaded gasoline with an octane rating lower than 87 may result
in engine knocking. Persistent kno cking can lead to engine damage.
At minimum, the gasoline you use should meet the specifications
of ASTM D4814 in the U.S.A. and CGSB3.5-M93 in Canada.

578 6-1. Specifications
PRIUS_OM_OM47791U_(U)
■Gasoline quality standards
● Automotive manufacturers in the U.S.A., Europe and Japan have devel-
oped a specification for fuel quality called the World-Wide Fuel Charter
(WWFC), which is expected to be applied worldwide.
● The WWFC consists of four categories that are based on required emis-
sion levels. In the U.S., category 4 has been adopted.
● The WWFC improves air quality by lowering emissions in vehicle fleets,
and improves customer satisfaction through better performance.
■ Recommendation of the use of gaso line containing detergent additives
● Toyota recommends the use of gasoline that contains detergent additives
to avoid the build-up of engine deposits.
● All gasoline sold in the U.S.A. contains minimum detergent additives to
clean and/or keep clean intake systems, per EPA’s lowest additives con-
centration program.
● Toyota strongly recommends the use of Top Tier Detergent Gasoline. For
more information on Top Tier Detergent Gasoline and a list of marketers,
please go to the official website www.toptiergas.com.
■ Recommendation of the use of cleaner burning gasoline
Cleaner burning gasoline, including reformulated gasoline that contains oxy-
genates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in
many areas.
Toyota recommends the use of cleaner burning gasoline and appropriately
blended reformulated gasoline. These types of gasoline provide excellent
vehicle performance, reduce vehicle emissions and improve air quality.

579
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6
Vehicle specifications
PRIUS_OM_OM47791U_(U)
■
Non-recommendation of the use of blended gasoline
● If you use gasohol in your vehicle, be sure that it has an octane rating no
lower than 87.
● Toyota does not recommend the use of gasoline containing methanol.
■ Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT (Methyl-
cyclopentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of gasoline that contains MMT. If fuel
containing MMT is used, your emission control system may be adversely
affected.
The malfunction indicator lamp on the instrument cluster may come on. If
this happens, contact your Toyota dealer for service.
■ If your engine knocks
● Consult your Toyota dealer.
● 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.
●Use only gasoline containing a maxi-
mum of 10% ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 10% etha-
nol, including from any pump labeled
E15, E30, E50, E85 (which are only
some examples of fuel containing more
than 10% ethanol).DO NOT use gasoline
containing more than
10% ethanol.
(15% ethanol)
(50% ethanol)
(85% ethanol)

580 6-1. Specifications
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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 can cause damage to your vehicle’s three-way catalytic
converters causing the emission control system to malfunction.
● Do not use gasohol other than the type previously stated.
Other gasohol may cause fuel system damage or vehicle performance
problems.
● Using unleaded gasoline with an octane number or rating lower than the
level previously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■ Fuel-related p oor driveability
If poor driveability is encountered after using a different type of fuel (poor hot
starting, vaporization, engine knocking, etc.), discontinue the use of that type
of fuel.
■ When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

588 6-1. Specifications
PRIUS_OM_OM47791U_(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 inflated
pressure to which a
tire may be inflated, s hown 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 auto-
matic transmission, power steering, power
brakes, power windows, power seats, radio
and heater, to the extent that these items are
available as factory-installed equipment
(whether installed or not)
Curb weight The weight of a motor vehicle with standard
equipment, including the 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

626 Alphabetical index
PRIUS_OM_OM47791U_(U)
Child safetyAirbag precautions ................150
Back door precautions ............ 97
Child restraint system............162
Child-protectors ....................... 90
How your child should wear the seat belt ........................113
Installing child restraints ........ 167
Power window lock switch..... 126
Power window precautions ...128
Removed electronic key battery precautions .........................461
Seat belt extender precautions .........................118
Seat belt precautions ............114
Seat heater precautions ........ 374
12-volt battery precautions ....440
Child-protectors ......................... 90
Cleaning
Exterior .................................. 402
Interior ...................................405
Seat belts ..............................406
Clock ......................................... 232
Condenser ................................432
Console box ............................. 363
Cooling system Engine overheating ............... 556
Hybrid system overheating....556
Cruise control Cruise control ........................268
Dynamic radar cruise control .................................272
Cup holders ..............................364
Curtain shield airbags ............. 142
Customizable features............. 596 Daytime running light
system .................................... 255
Deck board ............................... 379
Defogger
Rear window ......................... 350
Side mirrors........................... 350
Dimensions .............................. 566
Dinghy towing .......................... 327
Display Dynamic radar cruise control ................................. 272
Multi-information ................... 225
Warning messages ............... 513
Do-it-yourself maintenance .... 416
Door lock Back door ................................ 95
Side doors ............................... 89
Smart key system .. ................. 63
Wireless remote control .......... 87
Doors Back door ................................ 95
Door glasses ......................... 126
Door lock ..................... 63, 87, 89
Rear door child-protector ........ 90
Side doors ............................... 89
Driver’s seat belt reminder light ......................................... 504
Driving
Break-in tips .......................... 183
Correct posture ..................... 140
Procedures............................ 182
Winter driving tips ................. 321D

627
Alphabetical index
PRIUS_OM_OM47791U_(U)
Eco drive mode switch ........... 206
Electric power steering........... 300
Electronic key
If the electronic key does not operate properly ................. 548
Replacing battery ................. 460
Emergency, in case of If a warning buzzer sounds ............................... 499
If a warning light turns on ..... 499
If the electronic key does not operate properly ................. 548
If the hybrid system will not start .................................... 545
If the 12-volt battery is
discharged ......................... 550
If you have a flat tire ............ 530
If you lose your keys............. 547
If you think something is wrong ................................. 498
If your vehicle becomes stuck................................... 561
If your vehicle has to be stopped in an
emergency ......................... 563
If your vehicle needs to be towed ................................. 491
If your vehicle overheats ...... 556
Emergency flashers Switch ................................... 490 Engine
Accessory mode....................196
Compartment ........................425
Hood......................................419
How to start the hybrid system ................................194
Identification number .............567
If the hybrid system will not start .....................................545
Ignition switch........................194
Overheating...........................556
“POWER” switch ...................194
Engine coolant Capacity ................................572
Checking ...............................430
Preparing and checking before winter .......................321
Engine/power control
unit coolant Capacity ................................572
Checking ...............................430
Preparing and checking before winter .......................321
Engine oil Capacity ................................569
Checking ...............................426
Preparing and checking before winter .......................321
Enhanced VSC .........................300
EPS ............................................300
EV drive mode switch ..............201
Event data recorder ...................25E

629
Alphabetical index
PRIUS_OM_OM47791U_(U)
I/M test ...................................... 415
Identification
Engine .................................. 568
Vehicle.................................. 567
Ignition switch ......................... 194
Illuminated entry system ........ 357
Immobilizer system ................. 138
Indicator lights ........................ 221
Initialization Items to initialize ................... 603
Inside rear view mirror............ 120
Instrument panel light control.................................... 219
Interior lights Interior lights ................. 358, 359
Switch ........................... 358, 359
Wattage ................................ 576
Jack Positioning a floor jack ......... 422
Vehicle-equipped jack .......... 530
Jack handle.............................. 530
Keyless entry ............................. 87
Keys Electronic key ......................... 60
If the electronic key does not
operate properly ................. 548
If you lose your keys............. 547
Key number ............................ 60
Keyless entry .......................... 87
Keys ....................................... 60
Mechanical key....................... 60
“POWER” switch .................. 194
Wireless remote
control key............................ 87
Knee airbag.............................. 142 Lane-Keeping Assist ...............289
Language ..................................240
License plate lights
Replacing light bulbs .............473
Wattage .................................576
Light bulbs
Replacing ..............................473
Wattage .................................576
Lights
Emergency flasher switch .....490
Fog light switch .....................258
Foot lights..............................357
Hazard light switch ................490
Headlight switch ....................252
Interior lights..................358, 359
Personal lights.......................359
Replacing light bulbs .............473
Shift lever lighting ..................357
Turn signal lever....................213
Turn signal light switch ..........213
Vanity lights ...........................369
Wattage .................................576
LKA (Lane-Keeping Assist).....289
Load capacity ...........................320
Luggage compartment light Switch......................................96
Wattage .................................576
Luggage cover .........................382I
J
K
L
*: Refer to “Display Audio System Owner’s Manual” or “Navigation System Owner’s Manual”.