2022 TOYOTA PRIUS PLUG-IN HYBRID ECU

1682-2. Charging
Prius Plug-in Hybrid_OM_OM47E75E_(EE)QWhen the charging cable remains connected to the vehicle
Even if multiple consecutive charge schedules are registered, the next
charge will not be carried out according to the charging schedule until the
charging cable is removed and reconnected after charging completes. Also,
when the hybrid battery (traction battery) is fully charged, charging according
to the charging schedule will not be carried out.
Q“Climate Prep” (if equipped)
OWhen the air conditioning-linked setting is turned on, the air conditioning
operates until the set departure time. Therefore, the air conditioning will con-
sume electricity and charging may not complete by the set departure time.
OIf the hybrid battery (traction battery) is fully charged, charging will not be
carried out, even if the charge schedule is set. However, if “Climate Prep” is
turned on, the air conditioning will operate only once when it nears the time
set in “Departure”. If this occurs, the air conditioning will consume electricity
and the remaining charge of the hybrid battery (traction battery) when
departing may be decreased.
OWhen the doors are unlocked, the air conditioning system does not operate.
QWhen charging schedules are ignored
When the following operations are performed while the charging schedule is
on standby, charging schedule is temporarily canceled and charging is
started.
OWhen the Remote Air Conditioning System (P. 535) is operated
OWhen turning “Charge Now” on (P. 174)
OWhen an operation that temporarily cancels charging using the charging
schedule is performed (P. 158)
QEffects of outside temperature
When the charging mode is set to “Departure”, charging schedule may be
ignored due to the outside temperature and charging may start.
Q“Traction Battery Cooler” (if equipped) (P. 145)
When charging is carried out using the charging schedule, the hybrid battery
(traction battery) cooling function may operate according to the temperature
of the hybrid battery (traction battery).
OWhen the charging mode is set to “Start”, cooling starts at the set charging
start time.
OWhen the charging mode is set to “Departure”, cooling starts approximately
30 minutes before the charging start time. However, if there is no time to fin-
ish charging by the charging schedule, the hybrid battery (traction battery)
cooling time may be shortened and “Traction Battery Cooler” may not oper-
ate.

1792-2. Charging
2
Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47E75E_(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. 225, 238)
Displaying information related to the solar charging system
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2
3
4
5

1832-2. Charging
2
Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
The error warning indicator on the CCID (Charging Circuit Interrupting
Device) flashes.
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 con-
nect to a proper power source. (P. 120)
If charging does not start, immediately stop
charging and contact any authorized Toyota
retailer or Toyota authorized repairer, or any
reliable repairer.
Charging indicator does not illuminate, even though charging connector
is connected.
The plug is not properly con-
nected to the socketCheck whether the plug is properly con-
nected to the socket.
Charging connector is not
securely connected to
charging inlet
Check the connection status of the charging
connector.
• When connecting the charging connec-
tor, insert the charging connector
securely.
• After connecting the charging connector,
check that the charging indicator is turned
on.
If the charging indicator does not illuminate,
even though the charging connector is
securely connected, there may be a mal-
function in the system. Immediately stop
charging and contact any authorized Toyota
retailer or Toyota authorized repairer, or any
reliable repairer.
Hybrid battery (traction bat-
tery) is already fully chargedWhen the hybrid battery (traction battery) is
fully charged, charging is not performed.
The charger does not oper-
atePlease contact the facility manager when
there is a problem with charger.
Likely causeCorrection procedure

1882-2. Charging
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
If “Charging Stopped Due to Pulled Charging Connector” is shown
Charging connector is not
securely connected
Check the connection status of the charging
connector.
• When connecting the charging connec-
tor, insert the charging connector
securely.
• After connecting the charging connector,
check that the charging indicator is turned
on.
If charging cannot be carried out, even
though the proper procedures were fol-
lowed, have the vehicle inspected by any
authorized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
Charging connector was
unlocked while chargingWhen the charging connector is unlocked
while charging, charging stops. To continue
charging, reconnect the charging connector.
If “Charging Complete Limited Due to Battery Temp” is shown
Charging was stopped to
protect the hybrid battery
(traction battery) as it contin-
ued to remain hot for a cer-
tain period of time.Allow the hybrid battery (traction battery) to
cool down and perform charging again if the
charging amount has not reached the
desired amount.
Likely causeCorrection procedure

1902-2. Charging
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
If “Charging Stopped Check Charging Source” is shown (2)
Charger is not compatible
with vehicleCheck if it is possible to charge with the
charging cable equipped to the vehicle.
If charging cannot be carried out, even
when using the genuine charging cable,
consult any authorized Toyota retailer or
Toyota authorized repairer, or any reliable
repairer.
Charger has stopped
charging
If “Charging Stopped Check Charging Source” is shown (3)
Problem in power supply
from external power source
Check the following items.
• Plug is securely inserted
• Extension cord is not used and socket is
not overloaded
• Connected to a dedicated power line
• Electrical leakage has occurred or not
If there is no problem with any of the above
items, there may be a problem with the
socket of the building. Contact an electrician
to request an inspection.
If charging cannot be carried out, even
though there is no problem with the power
source path, there may be a malfunction in
the system. Have the vehicle inspected by
any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer.
Charger has stopped
charging
Check if it is possible to charge with the
charging cable equipped to the vehicle.
If charging cannot be carried out, even
when using the genuine charging cable,
consult any authorized Toyota retailer or
Toyota authorized repairer, or any reliable
repairer.
Likely causeCorrection procedure

2073. Instrument cluster
3
Instrument cluster
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
Front fog light indicator P. 347
Rear fog light indicator P. 347
Security indicator P. 74, 76
“READY” indicator P. 323
Shift position indicators P. 329
*1, 2Slip indicator light P. 510
*1, 3VSC OFF indicator P. 511
Cruise control indicator P. 412
Dynamic radar cruise control indicator P. 401
Cruise control “SET” indicator P. 401
*1, 3PCS warning light P. 372
*4LTA indicator P. 388
Steering control indicator P. 388
Adaptive High-beam System indicator P. 342
“BSM” indicator (if equipped) P. 423
IndicatorsPages

2734-2. Opening, closing and locking the doors
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
4
Operation of each component
Side doors
XSmart entry & start system
Carry the electronic key to enable this function.
Grip the front door handle to
unlock all the doors.
Make sure to touch the sensor
on the back of the handle.
The doors cannot be unlocked
for 3 seconds after the doors are
locked.
Touch the lock sensor (the
indentation on the surface of
the front door handle) to lock
the doors.
Check that the door is securely locked.
XWireless remote control
Locks all the doors
Check that the door is securely
locked.
Press and hold to close the side
windows.
*
Unlocks all the doors
Press and hold to open the side
windows.
*
*
: These settings must be customized at any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
The vehicle can be locked and unlocked using the entry func-
tion, wireless remote control or door lock switches.
Unlocking and locking the doors from the outside
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2
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2

2744-2. Opening, closing and locking the doors
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
QOperation signals
The emergency flashers flash to indicate that the doors have been locked/
unlocked. (Locked: Once; Unlocked: Twice)
QSecurity feature
If a door is not opened within approximately 30 seconds after the vehicle is
unlocked, the security feature automatically locks the vehicle again.
QWhen the door cannot be locked by the lock sensor on the surface of the
door handle
QDoor lock buzzer
If an attempt to lock the doors is made when a door is not fully closed, a
buzzer sounds continuously for 5 seconds. Fully close the door to stop the
buzzer, and lock the vehicle once more.
QSetting the alarm (if equipped)
Locking the doors will set the alarm system. (P. 76)
QIf the smart entry & start system or the wireless remote control does not
operate properly
OUse the mechanical key to lock and unlock the doors. (P. 693)
OReplace the key battery with a new one if it is depleted. (P. 631) When the door cannot be locked even if
the lock sensor on the surface of the door
handle is touched by a finger, touch the
lock sensor with the palm.
When gloves are being worn, remove the
gloves.