2014 TOYOTA PRIUS PLUG-IN Owners Manual

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PRIUS PHV_OM_OM47856U_(U)
CAUTION
■Hybrid battery (traction battery)
Never resell, hand over or modify the hybrid battery (traction battery). To pre-
vent accidents, hybrid batteries (traction batteries) that have been removed
from a disposed vehicle are collected through Toyota dealers. Do not dis-
pose of the battery yourself.
Unless the battery is properly collected, the following may occur, resulting in
death or serious injury:
•The hybrid battery (traction battery) may be illegally disposed of or
dumped, and someone may touch a high voltage part, resulting in an
electric shock.
•The hybrid battery (traction battery) is intended to be used exclusively
with your hybrid vehicle. If the hybrid battery (traction battery) is used
outside of your vehicle or modified in any way, accidents such as electric
shock, heat generation, smoke generation, an explosion and electrolyte
leakage may occur.
When reselling or handing over your vehicle, the possibility of an accident is
extremely high because the person receiving the vehicle may not be aware
of these dangers.
■Disposal of the hybrid battery (traction battery)
If your vehicle is disposed of without the hybrid battery (traction battery) hav-
ing been removed, there is a danger of serious electric shock if high voltage
parts, cables and their connectors are touched. In the event that your vehicle
must be disposed of, the hybrid battery (traction battery) must be disposed
of by your Toyota dealer or a qualified service shop. If the hybrid battery
(traction battery) is not disposed of properly, it may cause electric shock that
can result in death or serious injury.

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PRIUS PHV_OM_OM47856U_(U)
Symbols used throughout this manual
Cautions & Notices
Symbols used in illustrations
CAUTION
This is a warning against something which, if ignored, may cause death or
serious injury to people. You are informed about what you must or must not do
in order to reduce the risk of death or serious injury to yourself and others.
NOTICE
This is a warning against something which, if ignored, may cause damage to
the vehicle or its equipment. You are informed about what you must or must
not do in order to avoid or reduce the risk of damage to your Toyota and its
equipment.
Safety symbol
The symbol of a circle with a slash through it means “Do not”,
“Do not do this”, or “Do not let this happen”.
Arrows indicating operations
Indicates the action (pushing, turn-
ing, etc.) used to operate switches
and other devices.
Indicates the outcome of an opera-
tion (e.g. a lid opens).
ITOPP105

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PRIUS PHV_OM_OM47856U_(U)
1-1. Plug-in hybrid system
Plug-in hybrid system features
The plug-in hybrid system is a system that has the features of both
electric vehicles and hybrid vehicles.
●Electricity received by charging from an external power
source can be used, and the vehicle can also be driven as an
electric vehicle by driving over certain distances* using only
the electric motor (traction motor).
●If the amount of electricity remaining in the hybrid battery
(traction battery) becomes low, the vehicle is automatically
controlled in such a way that it can be driven as a hybrid vehi-
cle through the joint use of the gasoline engine.
*: The driving range will vary in accordance with conditions such as vehi-
cle speed, the amount of charge remaining in the hybrid battery (trac-
tion battery) and the usage of the air conditioning system. The gasoline
engine may also be used simultaneously in accordance with driving
conditions.
Gasoline engine
Electric motor (traction motor)

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1-1. Plug-in hybrid system
1
Before driving
PRIUS PHV_OM_OM47856U_(U)
■When in EV mode
Driving using only the electric motor (traction motor) is possible
(excluding certain situations, such as when accelerating sud-
denly), but if the amount of charge remaining in the hybrid bat-
tery (traction battery) becomes low, EV mode will be canceled.
In order to prolong EV mode driving, observe the following:
●Check the EV driving range using the energy monitor or
Hybrid System Indicator.
●Avoid sudden acceleration and sudden deceleration, and be
sure to drive smoothly.
If you repeatedly accelerate, the hybrid battery (traction bat-
tery) charge will deplete quickly. Also, the gasoline engine will
start, depending on acceleration or the vehicle speed.
●Restrain your speed as much as possible. The distance that
can be driven in EV mode will reduce considerably at high
speeds.

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1-1. Plug-in hybrid system
PRIUS PHV_OM_OM47856U_(U)
■When in HV mode
The vehicle can be used in the same way as a standard hybrid
vehicle.
In HV mode, controls are primarily carried out as follows in
accordance with the driving conditions.
●The gasoline engine stops when the vehicle is stopped.
●During start off, the electric motor (traction motor) drives the
vehicle.
●During normal driving, the gasoline engine and electric motor
(traction motor) are controlled effectively, and the vehicle is
driven with optimum fuel efficiency. A l s o , w h e n n e c e s s a r y, t h e
electric motor (traction motor) operates as an electrical gener-
ator to charge the hybrid battery (traction battery).
●When the accelerator pedal is depressed heavily, drive force
from both the gasoline engine and the electric motor (traction
motor) is used to accelerate.
■When braking (regenerative braking)
The electric motor (traction motor) charges the hybrid battery
(traction battery).
The EV driving range can be extended by actively using this
regenerative braking to store electricity in the hybrid battery
(traction battery).
Moreover, as fuel consumption is also reduced when in HV
mode, the regenerative braking system can be used effectively.

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1-1. Plug-in hybrid system
1
Before driving
PRIUS PHV_OM_OM47856U_(U)
Plug-in hybrid system control
The plug-in hybrid system features both EV mode and HV mode,
which are switched automatically. When a sufficient amount of elec-
tricity is remaining in the hybrid battery (traction battery) the vehicle
can be driven as an electric vehicle in EV mode; and when only a lit-
tle electricity is remaining in the hybrid battery (traction battery), HV
mode is automatically selected and the vehicle can be used in the
same manner as a hybrid vehicle.
The modes can also be switched using the EV/HV mode selection
switch. (→P. 3 7 )
■EV mode
Using the electricity stored in the
hybrid battery (traction battery),
the vehicle can be driven using
only the electric motor (traction
motor).
The gasoline engine may also be
used temporarily at the same
time in accordance with the
speed and load of the vehicle,
and with heater usage.

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1-1. Plug-in hybrid system
PRIUS PHV_OM_OM47856U_(U)
■HV mode
If only a little electricity is remain-
ing in the hybrid battery (traction
battery) and the vehicle cannot
be driven using the electric
motor (traction motor) only, the
electric motor (traction motor)
and the gasoline engine will be
used together.
The Hybrid System Indicator can
be used to check which mode
the plug-in hybrid system is cur-
rently being driven in.
The EV drive mode indicator ( ) will illuminate when your vehicle
is in EV mode, and will turn off if HV mode is switched to.

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1-1. Plug-in hybrid system
1
Before driving
PRIUS PHV_OM_OM47856U_(U)
EV/HV mode selection switch
Yo u c a n m a n u a l l y s w i t c h b e t w e e n E V m o d e a n d H V m o d e w h e n y o u
want to conserve battery power in preparation for EV driving in city
areas.
Switching to HV mode when driving on a highway or when driving
uphill is recommended in order to conserve battery power.* (→P. 6 7 )
*:The estimated EV driving range may reduce even after switching to
HV mode.
Press the switch
EV mode and HV mode will be
switched between with each
press.
If there is not enough charge
remaining in the hybrid battery
(traction battery) to allow EV driv-
ing, EV mode will not be select-
able.