
178
PRIUS PHV_OM_OM47A11U_(U)
1-7. Refueling
Opening the fuel tank cap
The fuel tank of your vehicle has a special structure, which requires
a reduction in fuel tank pressure before refueling. After the opener
switch has been pressed, it will take several seconds until the vehi-
cle is ready for refueling.
■Before refueling the vehicle
●Turn the “POWER” switch off and close all the doors and win-
dows.
●Confirm the type of fuel. ( oP. 1 8 0 )
■Opening the fuel tank cap
Press the fuel filler door
opener switch.
The screen to the left is dis-
played for a short period. Wait
until “REFUEL READY” is dis-
played, then proceed to the
next step.
STEP 1
STEP 2
![TOYOTA PRIUS PLUG-IN 2015 Owners Manual 180
1-7. Refueling
PRIUS PHV_OM_OM47A11U_(U)
■Fuel types
Use unleaded gasoline. (Octane rating 87 [Research Octane Number 91] or
higher)
■If the fuel filler door opener is inoperable
If the fuel TOYOTA PRIUS PLUG-IN 2015 Owners Manual 180
1-7. Refueling
PRIUS PHV_OM_OM47A11U_(U)
■Fuel types
Use unleaded gasoline. (Octane rating 87 [Research Octane Number 91] or
higher)
■If the fuel filler door opener is inoperable
If the fuel](/manual-img/14/58479/w960_58479-222.png)
180
1-7. Refueling
PRIUS PHV_OM_OM47A11U_(U)
■Fuel types
Use unleaded gasoline. (Octane rating 87 [Research Octane Number 91] or
higher)
■If the fuel filler door opener is inoperable
If the fuel filler door opener switch cannot be operated, contact your Toyota
dealer. In the event that urgent refueling is required, follow the procedure
below.
Remove the cap slowly. Take care to prevent fuel from spilling
out, as fuel tank pressure may not have been adequately
reduced.
Fill the fuel tank carefully and slowly. Use caution, as air being
discharged from inside the fuel tank may cause fuel to spray out
from the filler opening during refueling.
Open the fuel filler door using the lever in
the luggage compartment.STEP 1
STEP 2
STEP 3

621
6-1. Specifications
6
Vehicle specifications
PRIUS PHV_OM_OM47A11U_(U)
Fuel
Fuel typeUnleaded gasoline only
Octane Rating 87 (Research Octane Number 91) or higher
Fuel tank capacity
(Reference)10.6 gal. (40 L, 8.8 Imp.gal.)
NOTICE
■Notice about fuel
For plug-in hybrid vehicles, fuel may remain in the tank for a long time and
undergo changes in quality depending on the how the vehicle is used.
Refuel at least 5.3 gal.(20 L, 4.4 Imp.gal.) of fuel every 6 months (refuel a
total of at least 5.3 gal. [20 L, 4.4 Imp.gal.] over a 6-month period), as this
may affect components of the fuel system or the gasoline engine.

630
6-1. Specifications
PRIUS PHV_OM_OM47A11U_(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 gasoline containing detergent additives
●To y o t a r e c o m m e n d s t h e u s e o f g a s o l i n e t h a t c o n t a i n s d e t e r g e n t a d d i t i v e s
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.
●To y o t a s t r o n g l y r e c o m m e n d s t h e u s e o f To p T i e r D e t e r g e n t G a s o l i n e . F o r
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.
To y o t a r e c o m m e n d s t h e u s e o f c l e a n e r b u r n i n g g a s o l i n e a n d a p p r o p r i a t e l y
blended reformulated gasoline. These types of gasoline provide excellent
vehicle performance, reduce vehicle emissions and improve air quality.

632
6-1. Specifications
PRIUS PHV_OM_OM47A11U_(U)
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 poor 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
Ta k e c a r e n o t t o s p i l l g a s o h o l . I t c a n d a m a g e y o u r v e h i c l e ’ s p a i n t .
■Notice about fuel
For plug-in hybrid vehicles, fuel may remain in the tank for a long time and
undergo changes in quality depending on the how the vehicle is used.
Refuel at least 5.3 gal. (20 L, 4.4 Imp.gal.) of fuel every 6 months (refuel a
total of at least 5.3 gal. [20 L, 4.4 Imp.gal.] over a 6-month period), as this
may affect components of the fuel system or the gasoline engine.

680
Alphabetical index
PRIUS PHV_OM_OM47A11U_(U)
Engine
Accessory mode....................244
Compartment ........................ 464
Hood...................................... 448
How to start the hybrid
system ................................ 242
Identification number .............620
If the hybrid system will not
start ..................................... 596
Ignition switch........................242
Overheating........................... 607
“POWER” switch ................... 242
Engine coolant
Capacity ................................ 625
Checking ............................... 469
Preparing and checking
before winter ....................... 355
Engine/power control
unit coolant
Capacity ................................ 625
Checking ............................... 469
Preparing and checking
before winter ....................... 355
Engine oil
Capacity ................................ 622
Checking ............................... 465
Preparing and checking
before winter ....................... 355
Enhanced VSC .........................333
EPS ............................................333
EV driving ratio indicator ........276
EV driving range ................58, 273
Event data recorder ...................25
EV/HV mode selection
switch .......................................37
Floor mats ................................ 407
Fluid
Brake..................................... 627
Washer.................................. 474
Fog lights
Replacing light bulbs ............. 511
Switch ................................... 303
Wattage................................. 628
Foot lights ................................ 388
Front fog lights
Replacing light bulbs ............. 511
Switch ................................... 303
Wattage................................. 628
Front passenger occupant
classification system ............ 202
Front passenger’s seat belt
reminder light ........................ 541
Front seats
Adjustment ............................ 150
Front side marker light
Replacing light bulbs ............. 511
Wattage................................. 628
Front turn signal lights
Replacing light bulbs ............. 511
Switch ................................... 259
Wattage................................. 628
Fuel
Capacity ................................ 621
Fuel gauge ............................ 262
Information ............................ 629
Refueling ............................... 178
Type ...................................... 629
Fuel door .................................. 178
Fuel filler door .......................... 178
Fuses ........................................ 499
F

692
PRIUS PHV_OM_OM47A11U_(U)
GAS STATION INFORMATION
Fuel filler door
P. 1 7 8
Auxiliary catch lever
P. 4 4 8
Fuel filler door opener
P. 1 7 8
Tire inflation pressure
P. 6 2 7
Hood lock release lever
P. 4 4 8
Fuel tank capacity
(Reference)10.6 gal. (40 L, 8.8 Imp.gal.)
Fuel type Unleaded gasoline only P. 621
Cold tire inflation
pressureP. 6 2 7
Engine oil capacity(Drain and refill
reference)
qt. (L, Imp.qt.)With filter 4.4 (4.2, 3.7)
Without filter 4.1 (3.9, 3.4)
Engine oil typeTo y o t a G e n u i n e M o t o r O i l o r e q u i v a l e n tOil grade: ILSAC GF-5 multigrade engine oil
P. 6 2 2