2013 TOYOTA PRIUS PLUG-IN HYBRID Hv mode

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1-1. Plug-in hybrid system
1
Before driving
PRIUS PHV_OM_OM47787U_(U)
■
Regenerative braking
In the following situations, kinetic energy is converted to electric energy and
deceleration force can be obtained in conjunction with the recharging of the
hybrid battery (traction battery).
● The accelerator pedal is released while driving with the shift position in D
or B.
● The brake pedal is depressed while driving with the shift position in D or
B.
■ EV driving range
● The EV driving range is displayed on the energy monitor and the Hybrid
System Indicator. ( P. 58, 268)
● The EV driving range changes in accordance with the charge status of
the hybrid battery (traction battery), the speed of the vehicle, etc.
■ After EV mode has switched to HV mode due to low hybrid battery
(traction battery) charge
If the hybrid battery (traction battery) is regenerated by driving continuously
down a long slope, the EV driving range will be displayed on the multi-i\
nfor-
mation display and EV mode will be automatically switched to.
If EV mode is not switched to even though EV driving range is being dis-
played, EV mode can be switched to by pressing the EV/HV mode selection
switch.

40 1-1. Plug-in hybrid system
PRIUS PHV_OM_OM47787U_(U)
■Refilling fuel
Plug-in hybrid vehicles can be driven using electricity charged from an exter-
nal power source, however the gasoline engine that is provided on board as
an auxiliary power source and as a power source for driving in HV mode
needs to be filled with fuel. Check the fuel amount and refill immediately
when the fuel level becomes low. ( P. 174)
■ Gasoline engine operation in EV mode
Even if there is a sufficient amount of electricity remaining in the hybrid bat-
tery (traction battery) and EV driving range ( P. 58, 268) is being displayed,
the gasoline engine may operate automatically in the following circum-
stances (EV driving will be returned to automatically after EV driving
becomes possible again):
● When the heater etc. is in use.
● When the temperature of the hybrid system is high.
The vehicle has been left in the sun, driven on a hill, driven at high
speeds, etc.
● When the temperature of the hybrid system is low.
The vehicle has been left in temperatures lower than about 32 °F (0 °C)
for a long period of time etc.
● When power is needed temporarily, for example when accelerating sud-
denly.
● When vehicle speed is more than approximately 62 mph (100 km/h).
● When the accelerator pedal is depressed firmly or the vehicle is on a hill
etc.
● When the outside temperature is low (less than 14 °F [-10 °C])
The gasoline engine may also operate in circumstances other than those
listed above, depending on conditions.

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1-1. Plug-in hybrid system
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Before driving
PRIUS PHV_OM_OM47787U_(U)
■
When continually using EV mode only
After driving for approximately 124 miles (200 km) with the gasoline engine
off, the gasoline engine may start for a short amount of time in order to pro-
tect the system.
■ Conditions in which the gasoline engine may not stop
The gasoline engine starts and stops automatically. However, it may not stop
automatically in the following conditions
*:
● During gasoline engine warm-up
● When the temperature of the hybrid battery (traction battery) is high or
low
● During hybrid battery (traction battery) charging
● When the heater is switched on
*: Depending on the circumstances, the gasoline engine may also not stop
automatically in situations other than those above.
■ If the vehicle is not used for a long time
The 12-volt battery may discharge. In this event, charge the 12-volt battery.
(P. 594)
In order to prevent the hybrid battery (traction battery) from becoming
extremely low in charge, start the hybrid system at least once every 2 or 3
months, and turn the “POWER” switch off after the gasoline engine has
stopped automatically. (If the gasoline engine does not start up even after
approximately 10 seconds have passed since the “READY” indicator came
on, the “POWER” switch can be turned to OFF without any further action.)

58 1-1. Plug-in hybrid system
PRIUS PHV_OM_OM47787U_(U)
Multi-information displayPress the “DISP” button to dis-
play the energy monitor.
■ Names and meaning of each icons
Gasoline engine
Hybrid battery (traction bat-
tery)
Electric motor (traction motor)
EV driving range
Displays the approximate driving
range using only the electric
motor (traction motor) when in EV
mode or when enough power is
remaining for EV mode. The dis-
play turns off if the charge level of
the hybrid battery (traction bat-
tery) reduces and HV mode is
selected.
(The display will not turn off if HV
mode is selected using the EV/
HV mode selection switch.)

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1-1. Plug-in hybrid system
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Before driving
PRIUS PHV_OM_OM47787U_(U)
ConditionDisplay
When the vehicle is powered by
the electric motor (traction
motor) The illustration shows the display when
in EV mode.
When the vehicle is powered by
both the gasoline engine and the
electric motor (traction motor)
When the vehicle is powered by
the gasoline engine
When charging the hybrid bat-
tery (traction battery) from an
external power source (while a
charging cable is connected)
When the vehicle is charging the
hybrid battery (traction battery)

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PRIUS PHV_OM_OM47787U_(U)
These images are examples only, and may vary slightly from actual conditions.
■Hybrid battery (traction battery) status
When driving in EV mode, the battery display will switch when the
remaining charge display reaches one fifth of the total, and HV
mode will be switched to when the level reaches 6 or below.
The display when switching from EV mode to HV mode is different to the
display when switching from HV mode to EV mode.
*1: Switching to HV mode using the EV/HV mode selection switch is possi-
ble.
*2: Switching to EV mode using the EV/HV mode selection switch is not pos-sible.
*3: Switching to EV mode using the EV/HV mode selection switch is possi-ble.
ConditionDisplay
When there is no energy flow
EV mode*1HV mode*2
EV mode*1HV mode*3HV mode*2
Low
Full

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1-1. Plug-in hybrid system
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Before driving
PRIUS PHV_OM_OM47787U_(U)
■
Remaining hybrid battery (traction battery) charge display
The remaining charge display of the hybrid battery (traction battery) icon on
the multi-information display switches in accordance with the remaining
charge. ( P. 60)
■ Resetting the consumption data
Display Audio system
Selecting “Clear” on the “Consumption” screen will reset the fuel consump-
tion and the regenerated energy for the past 30 minutes.
Selecting “Yes” on the following screen will confirm resetting of all the data.
Navigation system
Selecting “Clear” on the “Consumption” screen will reset the fuel consump-
tion and the regenerated energy for the past 30 minutes.
Selecting “Yes” on the following screen will confirm resetting of all the data.
Multi-information display
If the “POWER” switch is turned OFF, average fuel consumption and regen-
erated energy data will be reset.
■ EV driving range display
When in EV mode or when necessary charge is remaining for EV mode, the
EV driving range can also be confirmed using the Hybrid System Indicator\
.
(P. 268)
■ Resetting the monthly fuel consumption
Press and hold the “TRIP” button while the monthly fuel consumption is dis-
played.
A confirmation message will be displayed.
Press and hold the “TRIP” button to reset the data.
Press the “DISP” button to cancel the reset operation. The screen will return
to the previous display if no buttons are pressed for approximately 10 sec-
onds.

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1-1. Plug-in hybrid system
Before driving
PRIUS PHV_OM_OM47787U_(U)
Plug-in hybrid vehicle driving tips
For economical and ecological driving, pay attention to the following
points:
■ Using EV mode and HV mode effectively
Primarily using EV mode when driving in cities and using HV
mode when driving on highways (or freeways) can help con-
serve fuel and electricity. ( P. 3 7 )
■ Using Eco drive mode
When using Eco drive mode, a torque corresponding to the
accelerator pedal depression amount can be generated more
smoothly than it is in normal conditions. In addition, the opera-
tion of the air conditioning system (heating/cooling) will be mini-
mized, improving fuel a nd electricity economy. ( P. 247)
■ Use of Hybrid System Indicator
Eco-friendly driving is possible by keeping the Hybrid System
Indicator within Eco area. ( P. 268)
■ When braking the vehicle
Make sure to operate the brakes gently and in good time. A
greater amount of electrical energy can be retained when slow-
ing down.
■ Delays
Repeated acceleration and deceleration, as well as long waits at
traffic lights, will lead to high fuel and electricity consumption.
Check traffic reports before l eaving and avoid delays as much
as possible. When encountering a delay, gently release the
brake pedal to allow the vehicle to move forward slightly while
avoiding overuse of the accelerator pedal. Doing so can help
control excessive electric ity and fuel consumption.