2023 TOYOTA BZ4X ECU

681-4. Theft deterrent system
Owners Manual_USA_M42C01_en
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 goes off 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 EV system
from starting if a key has
not been previously regis-
tered 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.

691-4. Theft deterrent system
Owners Manual_USA_M42C01_en
1
For safety and security
■Items to check before lock-
ing the vehicle
To prevent unexpected trigger-
ing of the alarm and vehicle
theft, make sure of the following:
 Nobody is in the vehicle.
 The side windows are closed
before the alarm is set.
 No valuables or other per-
sonal items are left in the
vehicle.
■Setting
Close the doors and hood, and
lock all the doors. The system
will be set automatically after 30
seconds.
The security indicator changes from
being on to flashing when the sys-
tem is set.
The alarm can also be set using the
mechanical key.
If all doors are closed with hood
open, alarm system can be set.
■Canceling or stopping
Do one of the following to deac-
tivate or stop the alarm:
 Unlock the doors.
 Turn the power switch to ACC
or O N, or s tart the E V s ys tem .
(The alarm will be deactivated
or stopped after a few sec-
onds.)
■System maintenance
The vehicle has a maintenance-free
type alarm system.
■Triggering of the alarm
The alarm may be triggered in the
following situations:
(Stopping the alarm deactivates the
alarm system.)
If a door is unl ocked using the
mechanical key while the alarm is
set, a warning will sound intermit-
tently for approxi mately 10 seconds.
If the alarm is not canceled or
stopped during this time, the warn-
ing pattern changes and the warning
sounds for a certain period of time.
Alarm
The alarm uses light and
sound to give an alert when
an intrusion is detected.
The alarm is triggered in the
following situations when
the alarm is set:
 A locked door is unlocked
or opened in any way other
than using the entry func-
tion or wireless remote con-
trol or mechanical key. (The
doors will lock again auto-
matically.)
 The hood is opened.
Setting/canceling/stop-
ping the alarm system

882-2. Charging
Owners Manual_USA_M42C01_en
WARNING
●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 twist 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. 9 3 )
●After removing the AC charging
cable, promptly return it to its
proper location.
●After removing the charging
connector, securely install the
AC charging inlet cap.
■When using the AC charging
cable and related parts
 P. 1 0 5
■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.

912-2. Charging
Owners Manual_USA_M42C01_en
2
Electric Vehicle system
If it does not turn off, perform t he correction procedure in the following
chart.
StatusPower indica- torError warning indicatorDetails/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
Plug tempera-
ture increase
detection
FlashesNot illumi-
nated
An increase in the tem-
perature of the plug is
detected due to an
improper connection
between the outlet and
plug.
 Check that the plug is
securely connected to
the outlet
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
span
IlluminatedIlluminated
The number of charges
using the AC charging
cable has exceeded its
usable number of charges.
Consult your Toyota
dealer

922-2. Charging
Owners Manual_USA_M42C01_en
For safety, inspect the AC
charging cable on a routine
basis.
Inspecting 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.
●The plug is not dirtied by dust,
etc.
Remove the plug from the outlet
before inspecting it. If any abnor-
malities are found in the AC
charging cable as a result of the
inspection, immediately stop use
and consult your Toyota dealer.
■Maintaining the AC charging
cable
When the AC charging cable is
dirty, first remove the dirt with a
hard, wringed cloth, and then
wipe the cable with a dry cloth.
However, never wash it with
water. If the AC charging cable is
washed with water, fire or electric
shock may occur du ring charging,
possibly resulting in death or seri-
ous injury.
■When not using the AC
charging cable for a long time
Remove the plug fr om the outlet.
Dust could accumulate on the
plug or in the outlet, possibly
causing overheating which could
lead to a fire.
Also, keep the cable in a place
free from moisture.

952-2. Charging
Owners Manual_USA_M42C01_en
2
Electric Vehicle system
■AC charging connector lock
function
If the AC charging connector is
locked/unlocked repeatedly, it may
not work temporarily due to protect
the system by AC charging system.
In this case, wait for a while before
connecting the AC charging connec-
tor 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 necessarily
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 secur ity function auto-
matically locks the connector again.
■When the AC charging connec-
tor cannot be inserted into the
AC charging inlet
If the connector lock pin is
extended, the connector lock is
operating.
Unlock the doors using the smart
key system or wireless remote con-
trol and unlock the AC charging con-
nector lock and check that the
connector lock pin is not extended.
■If the AC charging connector
cannot be unlocked
The AC charging connector can be
unlocked by operating the emer-
gency release wire.
1 Open the hood. ( P.462)
2 Pull the emergency release wire.
The AC charging connector is unlocked and can be removed.
3
After unlocking the AC charging
connector, fix the handle of the
emergency release wire to the
attachment.
This method is a temporary correc-
tion procedure for emergency use
only. If the problem persists, have
the vehicle inspected by your Toyota
dealer immediately.
Do not operate the emergency
release wire when the charging con-
nector can be unlocked in the nor-
mal procedure.

1072-2. Charging
Owners Manual_USA_M42C01_en
2
Electric Vehicle system
5 Remove the charging con-
nector cap and secure it to
the cable.
6 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. 9 3 )
7 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.133)
If the charging indicator is flashing,
the charging schedule is registered.
(  P.107)
If the error warning indicator on the
CCID (Charging Cir cuit Interrupting
Device) flashes during charging,
check P.90 and follow the correc-
tion procedure.
The charging indicator will turn off
when charging is completed.
The charging indicator will also turn
off when charging is interrupted. In
this case, refer to P.133
■When connecting the AC
charging connector
If the door is opene d or the power
switch is turned to ON with the AC
charging connector connected, the
charging cable indicator turns on to
notify that the AC charging connec-
tor is connected.
■If the charging i ndicator of the
charging port flashes after con-
necting the AC charging cable
The charging schedule ( P. 1 1 8 ) i s
registered and charging cannot be
performed. To cancel charging using

1092-2. Charging
Owners Manual_USA_M42C01_en
2
Electric Vehicle system
1 Press or of the meter
control switches to select .
2 Press or of the meter
control switches to select “Vehi-
cle Settings”, and then press and
hold .
3 Press or of the meter
control switches to select
“Charging Settings”, and then
press .
The “Charging Sett ings” screen will
be displayed.
4 Press or of the meter
control switches to select
“Charging Limit”, and then press
.
The “Charging Limit” screen will be
displayed.
5 Select “Full”, “90%”, “80%”,
“70%”, “60%” or “50%” and then
press .
●Setting operations on multimedia
1 Select .
2 Select “Vehicle customize”.
3 Select “Charging”.
4 Select “Charging limit”.
5 Select “Full”, “90%”, “80%”,
“70%”, “60%” or “50%”.
If the setting is changed during DC
charging, charging may stop due to
the operation of the DC charger
timer and the traction battery cannot
be fully charged.
■Protection function of AC
charging inlet overheating
By installing a temp erature sensor
to the AC charging inlet, prevents
parts from melting when the tem-
perature rises due to foreign matter
entering the charging connector. When a certain temperature
increase is detected, charging is
stopped immediately.
After this, when the power switch is
off, a message will be displayed on
the multi-information display
(
 P.140)
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. 9 6 )
●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.
●Do not get the te rminals of the
AC charging inlet wet.
●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 for-
eign objects.