TOYOTA PRIUS PRIME 2023 Owners Manual

912-1. Plug-in hybrid system
2
Plug-in hybrid system
automatically records the elec-
tricity consumption when being
charged and uses the electricity
consumption for estimating the
EV driving range. Therefore, the
EV driving range displayed
when the hybrid battery (traction
battery) is fully charged may dif-
fer from the previous EV driving
range depending on how the
vehicle was driven.
The EV driving range may
change significantly with each
charging until the electricity con-
sumption based on the recorded
value is stable (for approxi-
mately the first month or two).
However, this does not indicate
a malfunction.
When the air conditioning sys-
tem is turned on, the EV driving
range (with using the air condi-
tioning system) is estimated
based on the past air condition-
ing electricity consumption
amount considering that the
electricity consumption may
become higher.
The distance that EV driving is
possible varies significantly
depending on how the vehicle is
driven, road conditions, the
weather, the outside tempera-
ture, usage conditions of electri-
cal components and the number of occupants.
The distance that EV driving is
possible can be extended if the
following is performed:
■When starting off, depress
the accelerator pedal
smoothly to accelerate
As a guide, accelerate up to
approximately 12mph (20 km/h)
in the first 5 seconds.
Electrical and fuel efficiency can
be improved just by using the
ECO Accelerator Guidance dis-
played on the multi-information
display and taking care to start
off gently. ( P.163)
When the driving mode is set to
Eco drive mode, depressing the
accelerator pedal generates
smooth torque that makes it easier
to operate the accelerator gently.
At the same time, the air condition-
ing control is switched to eco air
conditioning mode ( P.437) to
reduce the strength of the air condi-
tioning operation.
■Maintain sufficient vehicle-
to-vehicle distance and do
not accelerate or decelerate
unnecessarily
Try to maintain a fixed speed
while driving. Driving at a short
vehicle-to-vehicle distance will
result in repeating wasteful
acceleration and deceleration,
which will worsen the electrical
and fuel efficiency.
Tips for extending the EV
driving range

922-1. Plug-in hybrid system
■Release the accelerator
pedal early before stopping
the vehicle, such as at a
traffic light
The regenerative brake will
operate to convert the kinetic
energy of the vehicle into electri-
cal energy, which will charge the
hybrid battery (traction battery).
The regeneration status can be
checked from the Hybrid Sys-
tem Indicator. ( P.158)
When the brake pedal is
depressed lightly during decel-
eration, the regeneration
amount increases, enabling
more electrical energy to be
recovered.
If the brake pedal is depressed too
strongly, the recovered amount
indicator will reach the maximum
level and the upper limit of the
recoverable en ergy will be
exceeded. Therefore, be sure to
operate the brake pedal early.
■Use the air conditioning
system appropriately, and
also utilize the heated steer-
ing wheel (if equipped) and
seat heaters (if equipped)
In EV mode, the vehicle is
cooled and heated by electrical
energy. (Except in extremely
cold temperatures of approxi-
mately 14°F [-10°C] or less.)
Preventing excessive cooling or
heating of the vehicle will reduce
power consumption and
improve electrical efficiency. When eco air conditioning mode
is used, the air conditioning con-
trol is switched automatically to
a lower setting. (
P.437)
The heated steering wheel and
seat heaters are efficient heat-
ing device that directly warm the
body using less electric power.
When used together with the air
conditioning system, a low tem-
perature setting can be used to
improve electrical and fuel effi-
ciency.
■Check the tire pressure
If the tire pressure is lower than
the specified value, it will
worsen the electrical and fuel
efficiency.
A pressure level 7 psi (50 kPa, 0.5
kgf/cm
2 or bar) lower than the spec-
ified value will cause a worsening of
several percentage points.
■When driving on highways,
use the EV/HV mode selec-
tion switch to drive in HV
mode
The power consumption will
increase significantly if the vehi-
cle is driven in EV mode on
highways.
■Do not load unnecessary
objects in the vehicle
Driving with objects weighing
220 lb. (100 kg) in the vehicle
will worsen the electrical and
fuel efficiency by approximately
3%.
Air resistance also greatly

932-1. Plug-in hybrid system
2
Plug-in hybrid system
affects electrical and fuel effi-
ciency. Remove any exterior
accessories such as a roof lug-
gage carrier when they are not
being used.
The running resistance of snow
tires is high and they will worsen
electrical and fuel efficiency.
Replace them with standard
tires as soon as they are no lon-
ger needed.
■Know your vehicle’s electri-
cal and fuel efficiency
If you know your vehicle’s daily
electrical and fuel efficiency, you
will understand the benefits of
Eco drive.
Use the Power Consump-
tion/Fuel Economy, ECO Accel-
erator Guidance/“Eco Score”
and other data displayed on the
multi-information display.
The following indicate that
charging has been carried out
properly.
 The charging indicator of the
charging port turns off
 “Charging Complete” is dis-
played on the multi-informa-
tion display when a door is
opened with the power switch
off ( P.112)
Regardless of the type of power
source or whether the charging schedule function is used,
charging is completed if the
above can be confirmed.
Charging-related messages:

P.143
Display when charging is
completed

942-2. Charging
2-2.Charging
AC charging inlet
AC charging inlet light
Charging indicator (P.96)
AC charging port lid ( P.94)
AC charging port
AC charging cable ( P.97)
■Open
Slightly open the charging port
lid by pressing the rear edge of it (the position shown in the illus-
tration).
Fully open the charging port lid by
hand.
Charging equipment
This vehicle features equipment for connecting to an external
power source.
Charging equipment and names
A
B
C
D
E
F
Opening/closing the
charging port lid

952-2. Charging
2
Plug-in hybrid system
■Close
Move the charging port lid to the
slightly open position and then
press the rear edge (the position
shown in the illustration) to close
it.
■Lid lifter
The charging port lid is not closed if
the lid lifter is pushed in before clos-
ing the charging port lid. In that
case, push again with the door
unlocked and release the lid lifter,
and close the charging port lid
again.
■Charging port lid open/close
detection switch
When the charging port lid is open,
be careful not to touch the charging
port lid open/close detection switch
(position shown in the illustration). If
you accidentally touch the switch,
the vehicle may incorrectly indicate
that the opened/closed status of the
charging port lid, or the charging
connector may not be able to
lock/unlock normally.

962-2. Charging
The illumination/flashing pattern changes to inform the user of the
charging status in the following ways.
*1: The indicator is dimmed when the charging is done
*2: Flashes for a certain period of time, and then turns off.
Charging indicator
Illumination/flashing pat-ternVehicle condition
IlluminatedCharging is in progress*1
“Battery Heater” ( P.108) is operating
Flashes normally*2When charging schedule is registered ( P.123)
and AC charging cable is connected to vehicle
Flashes rapidly*2When charging cannot be carried out due to
malfunction in a power sour ce or the vehicle etc.
(  P.141)

972-2. Charging
2
Plug-in hybrid system
AC charging cable
The function, correct oper-
ating procedure, etc. of the
AC charging cable are
explained.
WARNING
■When using the AC charging
cable and CCID (Charging
Circuit Interrupting Device)
Observe the following precau-
tions.
Failure to do so may cause an
unexpected accident, resulting in
death or serious injury.
●Do not attempt to disassemble
or repair the AC charging cable,
charging connector, plug or
CCID (Charging Circuit Inter-
rupting Device).
If a problem arises with the AC
charging cable or the CCID
(Charging Circuit Interrupting
Device), stop charging immedi-
ately and contact your Toyota
dealer.
●Do not subject the AC charging
cable, charging connector, plug
or CCID (Charging Circuit Inter-
rupting Device) to strong force
or impact.
●Do not apply excessive force to
the AC charging cable by force-
fully folding, twisting, pulling or
dragging the AC charging cable.
●Do not damage the AC charging
cable with sharp objects.
●Do not fold the charging con-
nector or plug or insert foreign
objects into them.
●Do not put the charging connec-
tor and plug into water.
●Do not bring the AC charging
cable to a high-temperature
item such as a heating device.
●Do not apply a load to the AC
charging cable and plug-cord
(such as wrapping the AC
charging cable around the CCID
(Charging Circuit Interrupting
Device) and the charging con-
nector).
●Do not use or leave the AC
charging cable in situations
where a load is applied to the
outlet and the plug (such as
when the CCID (Charging Cir-
cuit Interrupting Device) is
hanging in the air without con-
tacting the ground).
NOTICE
■Precautions when handling
AC charging cable
Make sure to observe the follow-
ing precautions. Failure to
observe these precautions may
result in damage to the AC
charging cable and AC charging
inlet.
●Insert the charging connector
straight into the AC charging
inlet.
●After inserting the charging con-
nector, do not apply excessive
force to or twis t the connector.
Also, do not lean on the connec-
tor or hang any objects from it.
●Do not step on or trip over the
AC charging cable.
●Before removing the charging
connector, make sure that it is
unlocked. ( P.102)
●After removing the AC charging
cable, promptly return it to its
proper location.

982-2. Charging
Charging connector
Latch release button
Plug
NOTICE
●After removing the charging
connector, securely install the
AC charging inlet cap.
■When using the AC charging
cable and related parts
 P.116
■Precautions for low tempera-
tures
In low temperatures, the AC
charging cable and plug-cord may
become hard.
Therefore, make sure to not apply
excessive force when they are
hard. If excessive force is applied
to the hardened AC charging
cable and plug-cord, they may be
damaged.
The names of each part of the AC charging cable
A
B
C

992-2. Charging
2
Plug-in hybrid system
Plug-cord
CCID (Charging Circuit Interrupting Device)
Power indicator (P.99)
Charging indicator ( P.99)
Error warning indicator ( P.99)
The CCID (Charging Circuit
Interrupting Device) has the fol-
lowing safety features.
■Electrical leakage detec-
tion function
If an electrical leakage is
detected during charging, the
power source will be automati-
cally interrupted, thus prevent-
ing fires or electrical shocks
caused by electrical leakage.
If the power source is interrupted,
the error warning indicator flashes.
If the power source is interrupted:
 P.100
■Automatic check function
This is an automatic system
check that is run before
charging begins to check for
problems in the operation of the
electrical leakage detection
function.
If a malfunction is found in the elec-
trical leakage detection function as
a result of the check, the error
warning indicator flashes to inform
the user. ( P.100)
■Temperature detection
function
A temperature detection func-
tion is equipped to the plug.
While charging, if heat is gener-
ated due to looseness on the
outlet side etc., this function
suppresses heat by controlling
the charging current.
■Conditions for supplying
current to the vehicle
The CCID (Charging Circuit
Interrupting Device) is designed
to prevent electrical current from
being supplied to the charging
connector when it is not con-
nected to the vehicle, even if the
plug is inserted into the outlet.
■Indicator operation
3 indicators are used to indicate
the following conditions.
D
E
F
G
H
Safety functions
CCID (Charging Circuit
Interrupting Device) indi-
cators

1002-2. Charging
Power indicator
Illuminates when electricity is flow-ing to the CCID (C
harging Circuit
Interrupting Device).
Charging indicator
Illuminates when charging is in
progress.
Error warning indicator
Flashes when there is an electrical
leakage or when a malfunction
occurs in the CCI D (Charging Cir-
cuit Interrupting Device).
■When a malfunction occurs during charging
The indicators on the CCID (Chargi ng Circuit Interrupting Device)
use a combination of different statuses (not illuminated, illuminated
or flashing) to inform the user of internal malfunctions.
When the error warning indicator is illuminated or flashing, temporarily
remove the plug from the outlet and th en reconnect it to check if the error
indicator turns off.
If the error warning indicator turns off, charging is now possible.
If it does not turn off, perform the correction procedure in the following
chart.
A
B
C
StatusPower indi- catorError warning indicatorCause/Correction procedure
Charging sys-
tem error
Not illumi-natedNot illumi-
nated or illu- minatedAn electrical leakage is
detected and charging is
canceled, or there is a mal-
function in the AC charging
cable.
 Consult your Toyota
dealer
IlluminatedFlashes
Plug tempera-
ture detection
malfunction
FlashesFlashes
There is a malfunction in the
plug temperature detection
part.
Consult your Toyota
dealer