2023 TOYOTA PRIUS PRIME Power

1362-2. Charging
the power consumption inside the
vehicle is improved.
• To continue using “My Room
Mode”, turn off the power of sys-
tems such as the air conditioning
system and audio system to
increase the remaining charge of
the hybrid battery (traction bat-
tery).
*: The power balance status during
“My Room Mode” can be checked
from the remaining charge dis-
play screen for the hybrid battery
(traction battery) displayed on the
multi-informat ion display.
(  P.134)
*: If equipped
This system generates solar
power with the solar panel
equipped to the roof of the vehi-
cle (solar roof).
 The hybrid battery (traction
battery) is charged while park-
ing.
 The electrical consumption of
the hybrid battery (traction
battery) is reduced during
WARNING
■Cautions for using “My Room
Mode”
Make sure to ob serve the follow-
ing precautions.
Failure to do so may result in seri-
ous health problems or even
death.
●Do not leave children, people
who need assistance, or pets
inside the vehicle. The system
may turn off automatically and
the interior temperature may
become high or low, resulting in
heat stroke, dehydration or
hypothermia. Devices such as
the wipers can also be used,
which may lead to mistaken
operation and an accident.
●Check the safety around the
vehicle carefully before use.
Solar charging sys-
tem*
A system that provides
power to the hybrid battery
(traction battery) and auxil-
iary 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 bat-
tery) without any special oper-
ations as long as sunlight is
available.
*: The charging amount via the solar charging system differs
depending on conditions, such
as season and weather.
Solar charging system
operation

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.

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.
*

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

1452-2. Charging
2
Plug-in hybrid system
■If “Charging Complete Limited Due to Battery Temp” is
shown
■If “Charging Stopped Check Charging Source” is shown
Likely causeCorrection procedure
Charging was stopped to protect the
hybrid battery (traction battery) as it
continued to remain hot for a certain
period of time.Allow the hybrid battery (traction bat-
tery) to cool down and perform
charging again if the charging
amount has not reached the desired
amount.
Likely causeCorrection procedure
Problem in power supply from exter-
nal power source
Check the following items.
 The plug is secu rely inserted.
 Extension cord is not used and
electrical outlet is not overloaded.
 The remote switch is not off.
 Connected to a dedicated power
line.
 Power outage has occurred or not.
 The power indicator on the CCID
(Charging Circuit Interrupting
Device) is illuminated.
 The circuit breakers have not
tripped.
If all of the above conditions are met,
the electrical outlet may be malfunc-
tioning. Contact an electrician and
request an inspection.
Furthermore, if the error warning
indicator on the CCID (Charging Cir-
cuit Interrupting Device) is flashing,
there may be electrical leakage.
Contact your Toyota dealer.
If charging cannot be performed,
even though there is no problem with
the power source path, there may be
a malfunction in the system. Have
the vehicle inspected by your Toyota
dealer.

1462-2. Charging
AC charging is stopped by AC char-
ger
Depending on the specifications of
charger, charging may be canceled
by an interruption of power supply.
Charging may be stopped by the fol-
lowing. Refer to charger handling
methods.
 The charging stop button of char-
ger is pressed.
 Charger with off charging schedule
function canceled charging
 Charger that is no t compatible with
the charging schedule function of
the vehicle
Check if it is possi ble to charge with
the AC charging cable equipped with
the vehicle. If charging cannot be
carried out even when using the gen-
uine AC charging cable, contact your
Toyota dealer.
The AC charger is not compatible
with the vehicle
Check if it is possi ble to charge with
the AC charging cable equipped with
the vehicle.
If charging cannot be carried out
even when using the genuine AC
charging cable, contact your Toyota
dealer.
Likely causeCorrection procedure