2023 TOYOTA PRIUS PRIME ECU

691-3. Emergency assistance
1
For safety and security
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701-4. Theft deterrent system
1-4.Theft deterrent system
The indicator light flashes after
the power switch has been
turned to off to indicate that the
system is operating.
The indicator light stops flashing
after the power switch has been
turned to ACC or ON to indicate
that the system has been can-
celed.
■System maintenance
The vehicle has a maintenance-free
type immobilizer system.
■Conditions that may cause the
system to malfunction
●If the grip portion of the key is in
contact with a metallic object
●If the key is in close proximity to or
touching a key to the security sys-
tem (key with a built-in transpon-
der chip) of another vehicle
Immobilizer system
The vehicle’s keys have
built-in transponder chips
that prevent the hybrid sys-
tem from starting if a key
has not been previously
registered in the vehicle’s
on-board computer.
Never leave the keys inside
the vehicle when you leave
the vehicle.
This system is designed to
help prevent vehicle theft but
does not guarantee absolute
security against all vehicle
thefts.
Operating the system
NOTICE
■To ensure the system oper-
ates correctly
Do not modify or remove the sys-
tem. If modified or removed, the
proper operation of the system
cannot be guaranteed.

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

1012-2. Charging
2
Plug-in hybrid system
For safety, inspect the AC
charging cable on a routine
basis.
Plug tempera-
ture increase
detection
FlashesNot illumi-nated
An increase in the tempera-
ture of the plug is detected
due to an improper connec-
tion between the outlet and
plug.
 Check that the plug is
securely connected to
the outlet. While the
power indicator is
flashing, charging is
performed with limited
current.
AC charging
cable life span
notice
IlluminatedFlashes
The number of charges
using the AC charging cable
is nearing the end of its
usable life span.
Consult your Toyota
dealer
AC charging
cable life spanIlluminatedIlluminated
The number of charges
using the AC charging cable
has exceeded its usable
number of charges.
Consult your Toyota
dealer
StatusPower indi-
catorError warning indicatorCause/Correction procedure
Inspecting and maintain-
ing the AC charging cable
WARNING
■Routine inspection
Check the following points regu-
larly.
Failure to do so may cause an
unexpected accident, resulting in
death or serious injury.
●The AC charging cable, plug,
charging connector, CCID
(Charging Circuit Interrupting
Device) etc. have not been
damaged.
●The outlet has not been dam-
aged.
●The plug can be securely
inserted into the outlet.
●The plug does not get extremely
hot during use.
●The tip of the plug has not been
deformed.

1042-2. Charging
be unlocked if power supply is
interrupted due to a power out-
age, etc., after the AC charging
connector is automatically
locked.
*2: The AC charging connector can be unlocked by similar opera-
tions to that of “Auto Lock”
(Default setting).
*3: When the end time of the charging schedule “Start-Stop”
or “Start and stop at set times”
setting is reached, the AC
charging connector is unlocked
even if it is not fully charged.
■AC charging connector lock
function
●If the AC charging connector is
locked/unlocked repeatedly, it
may not work temporary due to
protect the system by AC charging
system. In this case, wait for a
while before co nnecting the AC
charging connector to AC
charging inlet again.
●The AC charging connector lock
function does not guarantee that
theft of the AC charging cable will
be prevented, and is not neces-
sarily effective for all mischiefs.
■Security function for unlocking
If the AC charging connector is not
removed within approximately 30
seconds after the vehicle is
unlocked, the security function auto-
matically locks the connector again.
■When the AC charging connec-
tor cannot be inserted into the
AC charging inlet
Check that the connector lock pin is
not lowered.
If the connector lock pin is
extended, the connector lock is
operating. Unlock the doors using
the smart key system or wireless remote control and unlock the AC
charging connector lock and check
that the connector
lock pin is not
lowered.
■If the AC charging connector
cannot be unlocked
The AC charging connector can be
unlocked by operating the emer-
gency release lever.
1 Open the back door. ( P.193,
194)
2 Remove the cover inside the lug-
gage compartment as shown in
the illustration.
3 Move the emergency release
lever in the direction shown in
the illustration.
*
The charging connector is unlocked
and can be removed.
*: Move the emergency release
lever only in the direction shown in
the illustration. Even if a click
sound is heard after beginning
operation, do not stop pulling the
emergency release lever until it
cannot be moved. If the emer-
gency release lever is moved in
any other direction, it may be
damaged.

1182-2. Charging
4Remove the charging con-
nector cap and secure it to
the cable.
5 Insert the charging connector
into the AC charging inlet.
Align the guide position on the bot-
tom of the charging connector, and
push the charging connector
straight into the AC charging inlet
as far as possible.
Once a click sound is heard, check
that the charging connector is
securely locked.
When the charging connector is
inserted straight as far as possible,
it will automatically lock. ( P.102)
6 Confirm that the charging
indicator of the charging port
is illuminated.
Charging will not start if the charging indicator does not illumi-
nate when the charging connector
is inserted. (
P.96)
If the charging indicator is flashing,
the charging schedule is registered.
(  P.123)
If the error warning indicator on the
CCID (Charging Circu it Interrupting
Device) flashes during charging,
check P.118 and follow the correc-
tion procedure.
The charging indicator will turn off
when charging is completed.
The charging indica tor will also turn
off when charging is stopped for
some reason before completion. In
this case, refer to P.139.
■When connecting the AC
charging connector
If the door is opened or the power
switch is turned to ON with the AC
charging connecto r connected, the
charging cable indicator turns on to
inform that the AC charging connec-
tor is connected.
■If the charging indicator of the
charging port flashes after con-
necting the AC charging cable
The charging schedule ( P.123) is

1202-2. Charging
2Touch “Vehicle customize” on
the sub menu.
3 Touch “Charging”.
4 Touch “Charging current”.
5 Touch “8A”, and touch “OK”.
WARNING
■When charging
Observe the following precau-
tions.
Failure to do so may cause an
unexpected accident, resulting in
death or serious injury.
●Connect to a power source suit-
able for charging. ( P.106)
●Check that the AC charging
cable, plug and outlet are free of
foreign matter.
●Before charging, check that the
AC charging inlet is not
deformed, damaged or cor-
roded, and check that the inlet
is free of foreign matter such as
dirt, snow and ice.
If there is dirt or dust in these
areas, remove completely
before inserting the charging
connector.
●Only use outlets where the plug
can be securely inserted.
●Do not bundle or wind the AC
charging cable while charging,
as doing so may result in over-
heating.
●Do not touch the terminals of
the charging connector and AC
charging inlet with a sharp metal
objects (needles etc.) or hands,
or short them with foreign
objects.
●When charging outdoors, make
sure to connect to a weather-
proof outlet for outdoor use.
Ensure the weatherproof outlet
cover closes co mpletely. If the
weatherproof outlet cover can-
not be closed, install a weather-
proof outlet cover that will close.
●In order to stop charging at the
charging station, follow the
instructions of the charger.
●If any heat, smoke, odors, noise
or other abnormalities are
noticed during charging, stop
charging immediately.
●Do not insert the plug if the out-
let is submerged in water or
snow.
●When charging while it is raining
or snowing, do not connect or
disconnect the plug if your
hands are wet. Also, do not get
the plug or outlet wet.
●Do not charge the vehicle
during a lightning storm.
●Prevent the AC charging cable
from being caught in the door or
back door.
●Do not let the wheels on the AC
charging cable, plug, charging
connector and CCID (Charging
Circuit Interrupting Device).
●Firmly insert the plug into the
outlet.
●Do not use an extension cord
and converting adaptor.
●Close the hood before using the
charging system. The cooling
fan may start operating sud-
denly. Touching or getting close
to rotating parts such as the fan
may cause your hands or
clothes (especially a necktie or
scarf) to become caught and
result in a serious injury.

1252-2. Charging
2
Plug-in hybrid system
time*
*
: For details regarding setting clock, refer to “MULTIMEDIA OWNER’S
MANUAL”.
●The calendar is set to the correct
date ( P.166)
●Check that the power switch is
turned off
●After registering the charging
schedule, connect the AC
charging connector
The charging start time is deter-
mined based on the charging
schedule at the time that the AC
charging connector was connected.
●Connect the AC charging connec-
tor before the start time
When the charging mode is set to
“Start” or “Start at set time”, if you
connect the AC charging connector
after the set start time, the next
charging schedule will be refer-
enced.
When the charging mode is set to
“Start-Stop” or “Start and stop at set
times”, if you connect the AC
charging connector after the start
time, charging will start immediately
and charging will be performed until
the stop time.
●After connecting the AC charging
connector, check that the
charging indicator of the charging
port flashes ( P.96)
●Do not use an outlet that has a
power cut off function (including a
charging schedule function)
Use an outlet that constantly sup-
plies electricity. For outlets where
the power is cut off due to a
charging schedule function, etc.,
charging may not be carried out
according to plan if the power is cut
off during the set time.
■When the AC charging connec-
tor remains connected to the
vehicle
●When the charging mode is set to
“Start” or “Start at set time”, even
if multiple consecutive charging
schedules are registered, the next
charge will not be carried out
according to the charging sched-
ule until the AC charging connec-
tor is removed and reconnected
after charging completes. Also,
when the hybrid battery (traction
battery) is fully charged, charging
according to the charging sched-
ule will not be carried out.
●If the charging stop time is
reached before the hybrid battery
(traction battery) is fully charged
and the charging mode is set to
“Start-Stop” or “Start and stop at
set times”, the nearest charging
schedule after the stop time is
updated as the next charging
schedule, and charging is
repeated until the battery is fully
charged.
■Smartphone-linked operation (if
equipped)
After applying to Toyota Apps, it is
possible to use the smartphone
application to change charging
schedule settings.
For details about Toyota Apps, refer
to http://www.toyota.com/
connectedservices in the United
States and
http://www.toyota.ca/connected
in
Canada.
■When 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.
●When turning “My Room Mode”
on ( P.134)
●When turning “Charge Now” on
( P.128, 132)