2023 TOYOTA PRIUS PRIME Owners Manual

1372-2. Charging
2
Plug-in hybrid system
driving.
The electrical consumption of
the hybrid battery (traction
battery) is suppressed
increasing EV driving dis-
tance by supplementing
power consumption for the
auxiliary systems using solar
power.Solar roof
12-volt battery
Solar ECU
Hybrid battery (traction bat-
tery)
Information related to the solar
charging system can be
checked on the multi-informa-
tion display and Multimedia Dis-
play. ( P.173)
■Solar charging system
●In the following cases, charging
the hybrid battery (traction battery)
via the solar charging system is
not performed.
• The power switch is not off • The “Battery Heater” is operating
( P.108)
• AC charging has started
• The hybrid battery (traction bat-
tery) is fully charged
• The hybrid battery (traction bat-
tery) is completely discharged
●In the following cases, the solar
charging system stops solar
power generation and power sup-
ply to the hybrid battery (traction
battery) and auxiliary systems.
• The temperature preservation function of the solar charging sys-
tem operates
• There is a malfun ction in the solar
charging system
• When the temperature of the hybrid battery (traction battery) is
approximately 23°F (-5°C) or less
●The amount of power generated
by the solar roof differs according
to the season, climate, weather
conditions, vehicle angle and sur-
rounding conditions.
●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
droppings can lead to a substan-
tial 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 neces-
sary.
●When the hybrid battery (traction
battery) is fully charged, charging
the battery via the solar charging
system is not performed. When it
is not necessary to perform
charging from an external power
source, charge the vehicle as
much as possible using the solar
charging system during the day
Displaying information
related to the solar
charging system
A
B
C
D

1382-2. Charging
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 preser-
vation function of the solar
charging system becomes easy to
operate due to high temperature
of the vehicle interior.
●Applying a glass coating to the
solar roof may change the refrac-
tive index of light and reduce the
amount of power generated.
●Small dots, lines, and stains may
be visible inside the solar roof,
however there is no problem with
the power generation function or
safety.
NOTICE
■To protect the solar charging
system from damage
●Make sure to observe the fol-
lowing 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 immediately request repairs
from your Toyota dealer.
■If luggage is loaded on the
roof
 P.247

1392-2. Charging
2
Plug-in hybrid system
Refer to the following table and carry out the appropriate correction
procedure.
■The error warning indicator on the CCID (Charging Circuit
Interrupting Device) flashes.
When charging cannot be carried out
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.143.
When charging cannot be carried out
Likely causeCorrection procedure
Electrical leakage detection function
or self-diagnostic function operates
and power is cut off
When the voltage is insufficient, the
error warning indicator may flash
when there is noise interference.
Perform a reset and connect to a
proper power source. (P.100)
If charging does not start, immedi-
ately stop charging and contact your
Toyota dealer.

1402-2. Charging
■Charging indicator of the charging port does not illuminate,
even though AC charging connector is connected.
Likely causeCorrection procedure
AC charging connector is not
securely connected to AC charging
inlet
Check the connection status of the
AC charging connector.
When connecting the AC charging
connector, make su re not to touch
the latch release button. Insert the
AC charging connector securely
until you hear a click. The AC
charging connector may not be
connected correctly if the latch
release button is pressed while
inserting.
 After connecting the AC charging
connector, check that the latch
release button is not pressed and
the charging indicator of the
charging port is turned on.
If the charging indicator of the
charging port do es not illuminate,
even though the AC charging con-
nector is securely connected, there
may be a malfunction in the system.
Immediately stop charging and con-
tact your Toyota dealer.
Hybrid battery (traction battery) is
already fully chargedWhen the hybrid battery (traction
battery) is fully charged, charging is
not performed.
The AC charger does not operateContact the facility manager when
there is a problem with AC charger.

1412-2. Charging
2
Plug-in hybrid system
■Charging indicator of the charging port flashes and charging
cannot be carried out.
*: Refer to P.96 for details regarding charging indicator of the charging port illumination and flashing.
Refer to the following table and carry out the appropriate correction
procedure.
■Charging does not start at desired time
Likely causeCorrection procedure
When charging indicator of the
charging port flashes normally
*:
Charging schedule is registered
When you wish to charge according
to the charging schedule, wait until
the set time.
To start charging, set “Charge Now”
to on. ( P.128, 132)
When charging indicator of the
charging port rapidly flashes
*: Mal-
function occurred in an external
power source or the vehicle
When a door is opened while the
power switch is off, a message will
be displayed on th e multi-information
display. Follow the instructions dis-
played by the message on the multi-
information display.
When charging schedule func tion does not operate nor-
mally
Likely causeCorrection procedure
The vehicle calendar and clock are
not set correctly
Check the calendar setting and set it
to the correct date. ( P.166)
Check the clock setting and set it to
the proper time.
*

1422-2. Charging
*: For details regarding setting clock, refer to “MULTIMEDIA OWNER’S
MANUAL”.
■Cannot change charging schedule from smartphone applica-
tion (if equipped)
*
*: In order to use the smartphone application, it is necessary to apply to Toyota Apps. For details about Toyota Apps, refer to
http://www.toyota.com/connectedservices
in the United States and
http://www.toyota.ca/connected
in Canada.
■Charging starts, even though charging schedule is registered
AC charging connector is not con-
nected to vehicleBefore using the charging schedule,
connect the AC charging connector.
AC charging connector was con-
nected after set time
Connect the AC charging connector
before the time set in “Start” or “Start
at set time”.
When the charging mode is set to
“Start-Stop” or “Start and stop at set
times”, the hybrid battery (traction
battery) will charge even if the start
time has passed, if the AC charging
connector is connected before the
stop time.
Likely causeCorrection procedure
Smartphone is outside its coverage
area
Check the signal strength. If the
smartphone is outside its coverage
area, move to a place with a better
signal.
Likely causeCorrection procedure
“Charge Now” is set to on
When charging according to the
charging schedule, set “Charge
Now” to off. ( P.128, 132)
Charging schedule is set to offCheck that charging schedule is not
set to off. ( P.127, 132)
Likely causeCorrection procedure

1432-2. Charging
2
Plug-in hybrid system
When a door is opened with the
power switch off, after charging,
a message is displayed in the
multi-information display.
When this occurs, follow the
instructions displayed on the
screen.
AC charging connector was removed
and reinserted while charging indica-
tor of the charging port was flashing
If the AC charging connector is
removed and reinserted while the
charging indicator is flashing, the
charging schedule is canceled
( P.118).
Temporarily remove the AC charging
connector, and then reconnect it.
Outside temperature is low and
hybrid battery (traction battery)
warming control ( P.109) operated
(Alaska and Canada only)
 When hybrid battery (traction bat-
tery) warming control operates, the
charging schedules are ignored
and charging starts. In order to
protect the hybrid battery (traction
battery), allow charging to con-
tinue.
 After the 12-volt battery is removed
and reconnected, the charging
schedule setting may be disabled
due to the initial setting of the tem-
perature control system for the 12-
volt battery, even when the outside
temperature is not low. In this
case, after driving a few times, the
system initial settings will be com-
pleted and the charging schedule
settings will be enabled when the
outside temperature is not low.
When charging-related message is displayed
Likely causeCorrection procedure

1442-2. Charging
■If “Charging Stopped Due to Pulled Charging Connector” is
shown
*: Electricity is consumed when operating “Battery Heater”. (P.108)
Likely causeCorrection procedure
AC charging connector is removed
while AC charging
When the AC charging connector is
removed while AC charging,
charging stops. If you want to fully
charge the hybrid battery (traction
battery), reconnect the AC charging
connector.After the hybrid battery (traction bat-
tery) is fully charged, the AC
charging connector is removed while
the hybrid battery (traction battery) is
being recharged again because
electricity-consuming functions
* have
been used and the remaining charge
is now reduced.
AC charging connector is not
securely connected
Check the connection status of the
AC charging connector.
 When connecting the AC charging
connector, make su re not to touch
the latch release button. Insert the
AC charging connector securely
until you hear a click. The AC
charging connector may not be
connected correctly if the latch
release button is pressed while
inserting.
 After AC connecting the charging
connector, check that the latch
release button is not pressed and
the charging indicator of the
charging port is turned on.
If charging cannot be carried out,
even though the proper procedures
were followed, have the vehicle
inspected by your Toyota dealer.
Latch release button of AC charging
connector was pressed while AC
chargingWhen the latch release button is
pressed while AC charging, charging
stops. To continue charging, recon-
nect the AC charging connector.