2020 TOYOTA PRIUS PLUG-IN HYBRID battery

1582-2. Charging
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
While parking
For vehicles with a solar charging system, solar charging is performed to
charge the hybrid battery (traction battery) when the necessary conditions
such as parking are met. (P. 188)
After returning home
In order to drive the next time, charge the hybrid battery (traction battery).
Settings the charge schedule allows you to charge the hybrid battery (trac-
tion battery) at the desired time such as late at night or early in the morn-
ing. Furthermore, the charging schedule can be set to automatically
charge the hybrid battery (traction battery) every day or at the same time
on certain days. (P. 176)
Vehicles with a solar charging system:
When the hybrid battery (traction battery) is fully charged, charging the
battery via the solar charging system is not performed. If you are not plan-
ning on driving the vehicle for a few days, refraining from charging the
vehicle until right before you plan on using it will allow the solar charging
system to be used effectively.
*: When using the hybrid battery (traction battery) charge mode while parked,
make sure that no flammable objects are near the vehicle and the vehicle is
parked in a well-ventilated area. (P. 107)
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4

1602-2. Charging
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Things to know before charging
This vehicle has been designed to allow charging from an external
power source using a charging cable for exclusive use with standard
household AC sockets.
However, the vehicle differs greatly from standard household electri-
cal goods in the following ways, and incorrect usage could cause fire
or electric shock, possibly leading to death or serious injury.
●The charging operation is designed to operate at 10A continuously
for the charge duration (up to 3 hours 10 minutes). (P. 153)
●Charging can be conducted outdoors.
To charge properly, follow the procedure after reading the explanation
below. Charging is intended to be carried out by licensed drivers only
who properly understand the charging procedure.
●Do not allow children to use the charging cable without supervision.
Also, keep the charging cable out of reach of infants.
●When charging with a charger, follow the procedures for using each
charger.
●When charging using a public charging facility, check the setting of
the charging schedule function.
• When the charge schedule is registered, temporarily turn off the
function or turn “Charge Now” on. (P. 182, 184)
• When the charge schedule is set to ON, charging will not start
even if the charging cable is connected. Also, charging fee may
occur due to connection of the charging cable.
Make sure to read the following precautions before connecting
the charging cable to the vehicle and charging the hybrid battery
(traction battery).
Charging precautions

1612-2. Charging
2
Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Before charging, always check the following items.
●The parking brake is applied. (P. 386)
●The headlights are switched off or set to AUTO, and lights such as
the emergency flashers and interior lights etc. are switched off.
If these light switches are turned ON, then these features will consume
electricity, and charging time will increase.
●The power switch is off. (P. 373)
Before charging, make sure that each part of the charging cable is in
good condition. (P. 136)
■Safety functions
●The hybrid system will not start while the charging cable is attached to the
vehicle, even if the power switch is operated.
●If the charging cable is connected while the “READY” indicator is illumi-
nated, the hybrid system will stop automatically and driving will not be possi-
ble.
●When the charging cable is connected to the vehicle, the shift position can-
not be changed from P to another position.
■During charging
The followings occur, however, it does not indicate a malfunction.
●The charging starting time may differ depending on the state of the vehicle.
●During charging, the sound of the fan may be heard from the onboard trac-
tion battery charger cooling air intake vents. (P. 164)
●During and after charging, the rear seat and its surrounding area in which
the onboard traction battery charger is installed may get warm.
Confirm the following before charging
Inspecting the charging cable

1622-2. Charging
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Capacity reduction of the hybrid battery (traction battery)
The capacity of the hybrid battery (traction battery) will decline gradually
when the hybrid battery (traction battery) is in use. The rate at which it
declines will differ in accordance with environmental conditions and the way
in which the vehicle is used. Observing the following can help suppress bat-
tery capacity decline.
●Avoid parking the vehicle in areas with a high temperature under direct sun-
light when the hybrid battery (traction battery) is fully charged.
●Avoid accelerating and decelerating frequently and suddenly when EV driv-
ing.
●Avoid frequent driving near the top speed for EV driving. (P. 1 0 4 )
●Leave a low level of charge in the hybrid battery (traction battery) when
leaving the vehicle undriven for a long period of time.
After confirming that EV mode has switched to HV mode, turn the power
switch off.
●Use the charging schedule function as much as possible in order to fully
charge the hybrid battery (traction battery) immediately before starting off.
(P. 176)
Also, if the hybrid battery (traction battery) capacity reduces, the distance that
can be driven in EV mode decreases. However, vehicle performance does
not significantly become worse.
■When the remaining charge of the hybrid battery (traction battery) is low
after charging
In the following situations, the remaining charge of the hybrid battery (traction
battery) after charging completes may be less than normal in order to protect
the system (the EV driving range after the battery is fully charged may be
shorter).
*
●Charging is carried out when the outside temperature is low or high
●Charging is carried out immediately after high-load driving or in extreme
heat
When none of the above situations apply and there is a drastic drop in the
remaining charge of the hybrid battery (traction battery) after charging com-
pletes, have the vehicle inspected by any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.
*: When this occurs, even if the remaining charge display of the hybrid battery
(traction battery) shows that it is fully charged, the remaining charge rapidly
decreases faster than normal.
■When the charging amount sent to the hybrid battery (traction battery)
decreases
When the amount of power supplied by the charger is low or operation of the
“Traction Battery Heater”, etc., reduces the charging power sent to the hybrid
battery (traction battery), the charging amount sent to the hybrid battery (trac-
tion battery) may decrease.

1642-2. Charging
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
NOTICE
■Onboard traction battery charger cooling air intake vents
● Do not block the air intake vents with seat covers or luggage
● If the air intake vents are clogged with dust, clean them with a vacuum
cleaner
● Do not allow water or foreign matter to enter the air intake vents
● Do not spill large amounts of water near the air intake vents
If water is spilled, have the vehicle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer and do not
charge the hybrid battery (traction battery) before the inspection.
The grilles under the rear seats are the
cooling air intake vents for the onboard
traction battery charger installed under
the seats.
Make sure to observe the following pre-
cautions regarding the cooling air intake
vents. Failure to observe these precau-
tions may result in a charging system
malfunction.

165
2
2-2. Charging
Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
How to charge
P. 1 6 1
Prepare the charging cable.
When using the Mode 2 charging cable
Make sure to hold the body of
the plug and insert it firmly into
the socket.
If you have a remote switch, turn it
on.
Check that the power indicator on
the CCID (Charging Circuit Inter-
rupting Device) is illuminated. (If it
is not illuminated, refer to P. 192)
Use a string, etc. to hang the CCID
(Charging Circuit Interrupting
Device) on a hook or equivalent
when a load is applied to the
socket and plug due to the installa-
tion height of the socket.
The CCID (Charging Circuit Inter-
rupting Device) can be hung by
using the hole in the back.
Do not attach the CCID (Charging
Circuit Interrupting Device) to the
wall with screws.
This section explains the procedure for charging the hybrid bat-
tery (traction battery) with the equipped charging cable.
When using a charging station, make sure to check the opera-
tion instructions on the charging station.
When the charge schedule is registered, make sure “Charge Now”
is turned on before charging. ( P. 184)
Confirm the following before charging
When charging
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2

1682-2. Charging
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
If the charging indicator flashes
after inserting the charging con-
nector:
The charge schedule is regis-
tered (P. 176). Carry an elec-
tronic key and press the
charging connector lock switch
to unlock the charging connec-
tor.
After temporarily removing the charging connector, reinsert it within
approximately 5 seconds. (P. 168)
If the error warning indicator on the CCID (Charging Circuit Interrupting
Device) flashes during charging, check P. 130 and follow the correction
procedure.
The charging indicator will turn off when charging is completed.
■During charging
●The surface of the CCID (Charging Circuit Interrupting Device) may become
hot, but this does not indicate a malfunction. (When using Mode 2 charging
cable.)
●Depending on radio wave conditions, interference may be heard on the
radio.
●The current charging condition and the estimated time until charging will
complete can be checked on the multi-information display. (P. 159)
●During charging, the hybrid battery (traction battery) status indicator illumi-
nates and flashes, and changes according to the charging amount.
(P. 123)
■If the charging indicator flashes after connecting the charging cable
The charge schedule (P. 176) is registered and charging cannot be per-
formed. To cancel charging using the charging schedule and start charging,
perform any of the following procedures.
●Turn “Charge Now” on (P. 184)
●While the charging indicator is flashing, remove and reconnect the charging
connector within 5 seconds
■When the charging connector cannot be inserted into the charging inlet
P. 145

1712-2. Charging
2
Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Charging time
 P. 153
■ Safety function
Charging will not start when the charging connector is not locked. If the
charging indicator does not illuminate even when the charging connector is
inserted, remove and reinsert the connector, and then check that the charging
indicator illuminates.
■ When the outside temperature is low or high
The level shown on the remaining charge display ( P. 242) may drop slightly
when the power switch is turned to ON mode, even if charging has been com-
pleted and the hybrid battery (traction battery) is fully charged. However, this
does not indicate a malfunction.
■ Charging time may increase
 P. 154
■ While charging
When the power switch is turned to ON mode and the energy monitor dis-
plays, the charging connector is displayed on the energy monitor and the flow
of electricity during charging is displayed ( P. 233). Also, when the charging
connector is locked, is displayed.
■ If the charging cable cannot be unlocked
 P. 146
■ When removing the charging connector
■ Push lifter
Carry an electronic key and press the
charging connector lock switch and check
that the lock is released, and then pull the
charging connector towards you.
When the charging port lid is open, make
sure not to touch the push lifter. If it is
touched accidentally, the charging port lid
or connector lock may operate.
If they are accidentally operated, carry an
electronic key or unlock the doors, and
then press the charging connector lock
switch to unlock.Push lifter