2020 TOYOTA PRIUS PLUG-IN HYBRID Owners Manual

1852-2. Charging
2
Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Changing “Next Charging Event”*
*
: When “Charge Now” is set to “On” etc., it is not possible to change the reg-
istered “Next Charging Event”.
Press the charging schedule switch.
The “Charge Schedule” screen will display on the multi-information dis-
play.
Press or of the
meter control switches to
select “Next Charging
Event”, and then press .
The “Edit Next Charging Event”
screen will display.
Press or of the
meter control switches to
select the item to change,
and then press .
Change the registered settings
in accordance with the following
table.
1
2
3
SettingOperation
Charging Mode/Time
Operate , , and of the meter control
switches to set the charging mode (“Start” or
“Departure”) and charging start (or departure) time.
After changing the settings, press to return the
previous screen.
“Day”
Operate or of the meter control switches to
select the day to carry out charging according to the
charging schedule.
After changing the setting, press to return the
previous screen.
“Climate Prep”
(if equipped)
This can be set when the charging mode is set to
“Departure”. Each time is pressed, air condition-
ing-linked operation switches between “On” and
“Off”.

1862-2. Charging
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
After setting operations are
complete, press .
A confirmation screen of chang-
ing “Next Charging Event” will
display.
Press or of the meter
control switches to select “Yes”,
and then press to save the
charging schedule.
Press to return to the previous screen.
When canceling the “Next Charging Event”, select “No” and then press
.
■Charging schedule switch
●The charging schedule switch functions regardless of the condition of the
power switch.
However, when the charging schedule switch is pressed while the power
switch is not turned to ON mode, if the meter control switches are not oper-
ated for a certain amount of time after the charging schedule setting screen
is displayed, the display automatically turns off.
●The charging schedule switch cannot be used while driving.
■When charging schedule setting operations are canceled
When the vehicle is in the following conditions, charging schedule setting
operations are canceled.
●A message is displayed while performing a setting operation
●The power switch is operated before the settings are confirmed
●The vehicle starts off
●A display with a higher priority than that of the charging schedule setting is
shown
■Charging schedule
The “Charge Schedule” screen can be displayed and setting operations can
be performed from the “Vehicle Settings” setting on the multi-information dis-
play. (P. 782)
■“Next Charging Event”
After charging completes, the “Next Charging Event” displayed on the multi-
information display will not change until the charging cable is removed, even
after charging is performed according to the “Next Charging Event” schedule.
■To return to original setting after changing “Next Charging Event” set-
ting
Turning the setting of “Charge Now” on and then off can return the setting of
“Next Charging Event” to its original setting.
4

1872-2. Charging
2
Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■When “Next Charging Event” is changed while charging
● When the charging mode is “Departure”, the current charging is interrupted
or continued depending on the remaining time until the charging is com-
pleted.
● When the charging mode is “Start”, the current charging is interrupted, the
next charging will start at the set time.
■ When the power switch is turned off
It is possible to check the next charge
schedule (“Next Charging Event”) by oper-
ating or of the meter control
switches while the power switch is turned
off and the “Ending” screen*1 ( P. 208) is
displayed.*2
*1: The “Ending” screen may not be dis-
played during charging.
*2: When the power switch is turned off, the “Next Charging Event” confir-
mation screen may be displayed.
WARNING
■ Cautions while performing the setting operation
When performing the setting operation while the hybrid system is operated,
ensure that the vehicle is parked in a place with adequate ventilation. In a
closed area such as a garage, exhaust gases including harmful carbon
monoxide (CO) may collect and enter the vehicle. This may lead to death or
a serious health hazard.
NOTICE
■ While performing the setting operation
When performing the setting operation while the hybrid system is stopped,
be careful that the 12-volt battery will not be discharged.

1882-2. Charging
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Solar charging system
This system generates solar power with the solar panel equipped to
the roof of the vehicle (solar roof).
●The hybrid battery (traction battery) is charged
* while parking.
After the solar power is stored in the solar battery, it is transferred
all at once to the hybrid battery (traction battery) to reduce the sys-
tem electrical consumption and charge the battery efficiently.
●The electrical consumption of the hybrid battery (traction battery) is
reduced during driving.
The electrical consumption of the hybrid battery (traction battery) is
suppressed increasing EV driving distance and fuel economy by
supplementing power consumption for the auxiliary systems using
solar power.
*: The maximum charge amount of the solar charging system is approxi-
mately 90% of the fully charged capacity for the charging from an external
power source.
: If equipped
A system that provides power to the hybrid battery (traction bat-
tery) and auxiliary systems by performing solar charging via the
large solar panel (solar roof) equipped on the vehicle roof.
Even when a parking lot does not have charging equipment and in
the event of a disaster, it is possible to charge
* the hybrid battery
(traction battery) without any special operations as long as sunlight
is available.
*: The charging amount via the solar charging system differs depending on
conditions, such as season and weather. Also, there is a limit on the
amount of charging possible per day. It requires at least approximately 10
days to charge to the maximum possible charging amount via the solar
charging system.
Solar charging system operation

1892-2. Charging
2
Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
12-volt battery
Solar roof
Solar battery (inside console box)
Solar ECU
Hybrid battery (traction battery)
Information related to the solar
charging system can be checked
with (Drive information) on
the multi-information display.
(P. 235, 248)
Displaying information related to the solar charging system
1
2
3
4
5

1902-2. Charging
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Solar charging system
●In the following cases, charging the hybrid battery (traction battery) via the
solar charging system is not performed. Solar power generation stops when
the solar battery becomes fully charged.
• Charging via an external power source
• The power switch is not off
• The “Traction Battery Heater” is operating (P. 154)
• The Remote Air Conditioning System is operating
• When the amount of remaining charge in the hybrid battery (traction bat-
tery) is approximately 90% or more of the fully charged capacity for the
charging from an external power source
●In the following cases, the solar charging system stops solar power genera-
tion and power supply to the hybrid battery (traction battery) and auxiliary
systems.
• The temperature preservation function of the solar charging system oper-
ates
• There is a malfunction in the solar charging system
• When the 12-volt battery terminals are disconnected
●The amount of power generated by the solar roof differs according to the
season, climate, weather conditions, vehicle angle and surrounding condi-
tions.
●If even part of the solar roof is in the shade, there may be an extreme drop
in power generation.
●Please adhere to the following in order to allow full performance of the solar
roof.
• Clean the roof on a routine basis (Especially fallen leaves and bird drop-
pings can lead to a substantial decrease in power generation)
• Remove snow from the roof as soon as possible
• Do not attach any seals or stickers to the roof
It is recommended not to install a roof carrier etc. unless it is necessary
●When the hybrid battery (traction battery) is fully charged, charging the bat-
tery via the solar charging system is not performed. When it is not neces-
sary to perform charging from an external power source, charge the vehicle
as much as possible using the solar charging system during the day and
use the external power source only at night. As a result, the solar charging
system can be used effectively.
●When the vehicle is left in the hot weather, the temperature preservation
function of the solar charging system becomes easy to operate due to high
temperature of the vehicle interior. The solar charging system can be used
effectively by using a sunshade or parking the vehicle facing north, etc.

1912-2. Charging
2
Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Solar battery
When the solar roof is not exposed to sunlight or the vehicle is not driven for a
long period of time, the solar battery may be discharged, negatively affecting
the system.
If storing the vehicle inside of a garage away from the sun or if the vehicle will
not be used for a long period of time, use one of the following methods to
charge the solar battery at least once every 2 to 3 months.
● Start the hybrid system and keep the READY indicator turned on for approx-
imately 60 minutes or more
● Park the vehicle outside of the garage so that the solar roof is in direct sun-
light for approximately 2 hours or more
(In this case, it is not necessary to start the hybrid system)
NOTICE
■ To protect the solar charging system from damage
● Make sure to observe the following precautions.
• Do not modify the solar roof
• Do not condense sunlight onto the solar roof
• Do not place anything on top of the solar roof
• Do not subject the solar roof to strong impacts or apply force with sharp
objects from the inside roof of the vehicle.
● If the solar roof is damaged, do not touch the damaged area and immedi-
ately request repairs from any authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
■ If luggage is loaded on the roof
 P. 371

1922-2. Charging
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
When normal charging cannot be carried
out
Refer to the following table and carry out the appropriate correction
procedure.
When charging does not start, even though the normal proce-
dure is followed, check each of the following items.
If a message is shown on the multi-information display, also refer to
P. 197.
When normal charging cannot be carried out
Likely causeCorrection procedure
The power source indicator on the CCID (Charging Circuit Interrupting
Device) does not illuminate, even though the plug is connected to an
external power source.
Plug is not properly con-
nected to socketCheck that the plug is properly connected to
the socket.
Power is outAfter power is restored, carry out the
charging procedure again.
Remote switch is offIf the remote switch is equipped, turn the
switch on.
Building breaker is tripped
and power is cut off
Check that the breaker is connected and if
there is no malfunction, check if the vehicle
can be charged through another socket.
If charging is possible, the first socket may
have a malfunction. Contact the building or
facility manager, or an electrician.
Short circuit between CCID
(Charging Circuit Interrupting
Device) and plugImmediately stop charging and contact any
authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.