2023 TOYOTA BZ4X battery

1834-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en
4
Before driving
WARNING
●If the power back door system is
turned off while the back door is
operating automatically, the
automatic operation is stopped.
The back door then has to be
operated manually. Take extra
care when on an incline, as the
back door may open or close
unexpectedly.
●If the operating conditions of the
power back door are no longer
met, a buzzer may sound and
the back door may stop opening
or closing. The back door then
has to be operated manually.
Take extra care when on an
incline, as the back door may
open or close abruptly.
●On an incline, t he back door
may suddenly shut after it
opens. Make sure the back door
is fully open and secure.
●In the following situations, the
power back door may detect an
abnormality and automatic
operation may be stopped. In
this case, the back door has to
be operated manually. Take
extra care when on an incline,
as the back door may open or
close abruptly.
• When the back door contacts an obstacle
• When the 12-volt battery volt- age suddenly drops, such as
when the power switch is turned
to ON or the EV system is
started during automatic opera-
tion
●If a bicycle carrier or similar
heavy object is attached to the
back door, the power back door
may not operate, causing itself
to malfunction, or the back door
may suddenly shut again after
being opened, causing some-
one’s hands, arms, head or
neck to be caught and injured.
When installing an accessory
part to the back door, using a
genuine Toyota part is recom-
mended.
■Jam protection function
Observe the following precau-
tions.
Failure to do so may cause death
or serious injury.
●Never use any part of your body
to intentionally activate the jam
protection function.
●The jam protection function may
not work if something gets
caught just before the back door
fully closes. Be careful not to
catch fingers or anything else.
●The jam protection function may
not work depending on the
shape of the object that is
caught. Be careful not to catch
fingers or anything else.
■Hands Free Power Back Door
(if equipped)
Observe the following precautions
when operating the Hands Free
Power Back Door.
Failure to do so may cause death
or serious injury.
●Check the safety of the sur-
rounding area to make sure
there are no obs tacles or any-
thing that could cause any of
your belongings to get caught.

1884-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en
●When an exterior alarm sounds
once for 5 seconds
●When an interior alarm pings con-
tinuously
■Battery-saving function
The battery-saving function will be
activated in order to prevent the
electronic key battery and the 12-
volt battery from being discharged
while the vehicle is not in operation
for a long time.
●In the following situations, the
smart key system may take some
time to unlock the doors.
• The electronic key has been left in
an area of approximately 11.5 ft.
(3.5 m) of the outside of the vehi-
cle for 2 minutes or longer.
• The smart key system has not been used for 5 days or longer.
●If the smart key system has not
been used for 14 days or longer,
the doors canno t be unlocked at
any doors except the driver’s door.
In this case, take hold of the
driver’s door handle, or use the
wireless remote control or the mechanical key, to unlock the
doors.
■Turning an electronic key to
battery-saving mode
●When battery-saving mode is set,
battery depletion is minimized by
stopping the electronic key from
receiving radio waves.
Press twice while pressing
and holding .
Confirm that the ele ctronic key indi-
cator flashes 4 times.
While the battery-saving mode is
set, the smart key system cannot be
used. To cancel the function, press
any of the electronic key buttons.
●Electronic keys that will not be
used for long periods of time can
be set to the battery-saving mode
in advance.
■Conditions affecting operation
The smart key system uses weak
radio waves. In the following situa-
tions, the communication between
the electronic key and the vehicle
may be affected, preventing the
smart key system, wireless remote
control and immobilizer system from
operating properly.
●When the electronic key battery is
depleted
●Near a TV tower, electric power
plant, gas station, radio station,
large display, airpo rt or other facil-
ity that generates strong radio
waves or electrical noise
●When the electronic key is in con-
SituationCorrection pro-
cedure
An attempt was
made to lock the
vehicle while a
door was open.Close all of the
doors and lock
the doors again.
SituationCorrection pro-cedure
The power
switch was
turned to ACC
while the driver’s
door was open
(or the driver’s
door was opened
while the power
switch was in
ACC).
Turn the power
switch to OFF
and close the
driver’s door.

1894-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en
4
Before driving
tact with, or is covered by the fol-
lowing metallic objects
• Cards to which al uminum foil is
attached
• Cigarette boxes that have alumi- num foil inside
• Metallic wallets or bags
• Coins
• Hand warmers made of metal
• Media such as CDs and DVDs
●When another wireless key (that
emits radio waves) is being used
nearby
●When carrying the electronic key
together with the following devices
that emit radio waves
• Portable radio, cellular phone, cordless phone or other wireless
communication devices
• Another electronic key or a wire- less key that emits radio waves
• Personal computers or personal
digital assistants (PDAs)
• Digital audio players
• Portable game systems
●If window tint with a metallic con-
tent or metallic objects are
attached to the rear window
●When the electronic key is placed
near a battery charger or elec-
tronic devices
●When the vehicle is parked in a
pay parking spot where radio
waves are emitted.
■Note for the entry function
●Even when the electronic key is
within the effective range (detec-
tion areas), the system may not
operate properly in the following
cases:
• The electronic key is too close to the window or outside door han-
dle, near the ground, or in a high
place when the doors are locked
or unlocked.
• The electronic key is on the instru- ment panel, luggage cover or
floor, or in the door pockets or
glove box when the EV system is
started or power switch modes are
changed.
●Do not leave the electronic key on
top of the instrument panel or near
the door pockets when exiting the
vehicle. Depending on the radio
wave reception conditions, it may
be detected by the antenna out-
side the cabin and the door will
become lockable from the outside,
possibly trapping the electronic
key inside the vehicle.
●As long as the electronic key is
within the effective range, the
doors may be locked or unlocked
by anyone. However, only the
doors detecting the electronic key
can be used to lo ck or unlock the
vehicle.
●Even if the electro nic key is not
inside the vehicle, it may be possi-
ble to start the EV system if the
electronic key is near the window.
●The doors may unlock if a large
amount of water splashes on the
door handle, such as in the rain or
in a car wash when the electronic
key is within the effective range.
(The doors will au tomatically be
locked after approximately 60 sec-
onds if the doors are not opened
and closed.)
●If the wireless remote control is
used to lock the doors when the
electronic key is near the vehicle,
there is a possib ility that the door
may not be unlocked by the entry
function. (Use the wireless remote
control to unlock the doors.)
●Touching the door lock sensor
while wearing gloves may delay or
prevent lock operation. Remove
the gloves and touch the lock sen-
sor again.
●When the lock operation is per-
formed using the lock sensor, rec-
ognition signals will be shown up
to two consecutive times. After
this, no recognition signals will be
given.
●If the door handle becomes wet
while the electronic key is within
the effective range, the door may

1904-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_enlock and unlock repeatedly. In that
case, follow the fo
llowing correc-
tion procedures to wash the vehi-
cle:
• Place the electronic key in a loca- tion 6 ft. (2 m) or more away from
the vehicle. (Take care to ensure
that the key is not stolen.)
• Set the electronic key to battery-
saving mode to disable the smart
key system. ( P.188)
●If the electronic key is inside the
vehicle and a door handle
becomes wet during a car wash, a
message may be shown on the
multi-informatio n display and a
buzzer will sound outside the vehi-
cle. To turn off the alarm, lock all
the doors.
●The lock sensor may not work
properly if it com es into contact
with ice, snow, mud, etc. Clean
the lock sensor and attempt to
operate it again.
●A sudden approach to the effec-
tive range or door handle may pre-
vent the doors from being
unlocked. In this case, return the
door handle to the original position
and check that the doors unlock
before pulling the door handle
again.
●If there is another electronic key in
the detection area, it may take
slightly longer to unlock the doors
after the door handle is gripped.
■When the vehicle is not driven
for extended periods
●To prevent theft of the vehicle, do
not leave the electronic key within
6 ft. (2 m) of the vehicle.
●The smart key system can be
deactivated in advance. ( P.569)
●Battery-saving mode can reduce
the power consumption of elec-
tronic keys. ( P.188)
■To operate the system properly
Make sure to carry the electronic
key when operating the system. Do
not get the electronic key too close to the vehicle when operating the
system from the out
side of the vehi-
cle.
Depending on the position and hold-
ing condition of the electronic key,
the key may not be detected cor-
rectly and the system may not oper-
ate properly. (The alarm may go off
accidentally, or the door lock pre-
vention may not operate.)
■If the smart key system does
not operate properly
●If the doors cannot be locked or
unlocked, perform the following.
• Bring the electronic key close to the door handle and perform a
lock or unlock operation.
• Use the wireless remote control.
If the doors cannot be locked or
unlocked by perform the above, use
the mechanical key. ( P.539)
However, if the mechanical key is
used while the alarm system is set,
the warning will sound. ( P. 6 9 )
●If the EV system cannot be
started, refer to P.540
■Customization
Settings (e.g. smart key system)
can be changed.
(Customizable features: P.569)
If the smart key system has been
deactivated in a customized setting,
refer to the explanations for the fol-
lowing operations.
●Locking and unlocking the doors:
Use the wireless remote control or
mechanical key. ( P.167, 539)
●Starting the EV system and
changing power switch modes:
P. 5 4 0
●Stopping the EV system: P. 2 3 3

2144-5. Opening, closing the windows
Owners Manual_USA_M42C01_en
This function can be used to
prevent children from acciden-
tally opening or closing a pas-
senger window.
Press the switch.
The indicator will come on and
the passenger windows will be locked.
The passenger windows can still be
opened and closed using the
driver’s switch even if the lock
switch is on.
■The window lock switch can be
operated when
The power switch is in ON.
■When the 12-volt battery is dis-
connected
The window lock switch is disabled.
If necessary, press the window lock
switch after reconnecting the 12-volt
battery.
WARNING
●When exiting the vehicle, turn
the power switch to OFF, carry
the key and exit the vehicle
along with the child. There may
be accidental operation, due to
mischief, etc., that may possibly
lead to an accident.
■Jam protection function
●Never use any part of your body
to intentionally a ctivate the jam
protection function.
●The jam protection function may
not work if something gets
jammed just before the side
window is fully closed. Be care-
ful not to get any part of your
body jammed in the side win-
dow.
■Catch protection function
●Never use any part of your body
or clothing to intentionally acti-
vate the catch p rotection func-
tion.
●The catch protection function
may not work if something gets
caught just before the side win-
dow is fully opened. Be careful
not to get any part of your body
or clothing caught in the side
window.
Preventing accidental
operation (window lock
switch)

2245-1. Before driving
Owners Manual_USA_M42C01_en
When the following unusual
NOTICE
■When driving the vehicle
●Do not depress t he accelerator
and brake pedals at the same
time during drivin g, as this may
restrain the EV system output.
●Do not use the accelerator
pedal or depress the accelera-
tor and brake pedals at the
same time to hold the vehicle on
a hill.
■Avoiding damage to vehicle
parts
●Do not turn the steering wheel
fully in either direction and hold
it there for an extended period
of time.
Doing so may damage the
power steering motor.
●When driving over bumps in the
road, drive as slowly as possible
to avoid damagi ng the wheels,
underside of the vehicle, etc.
■If you get a flat tire while driv-
ing
A flat or damaged tire may cause
the following situations. Hold the
steering wheel firmly and gradu-
ally depress the brake pedal to
slow down the vehicle.
●It may be difficult to control your
vehicle.
●The vehicle will make abnormal
sounds or vibrations.
●The vehicle will lean abnor-
mally.
Information on what to do in case
of a flat tire ( P.527)
■When encountering flooded
roads
Do not drive on a road that has
flooded after heavy rain, etc.
Doing so may cause the following
serious damage to the vehicle:
●Short in electrical components
●Traction battery caused by
water immersion
In the event that you drive on a
flooded road and the vehicle is
flooded, be sure to have your Toy-
ota dealer check the following:
●Brake function
●Changes in quantity and quality
of transmission fluid, etc.
●Lubricant condition for the bear-
ings and suspension joints
(where possible), and the func-
tion of all joints, bearings, etc.
●Components connected to the
traction battery.
If the shift control system is dam-
aged by flooding, it may not be
possible to shift the shift position
to P, or from P to other positions.
In this case, contact your Toyota
dealer.
■When parking the vehicle
Always set the parking brake, and
shift the shift position to P. Failure
to do so may cause the vehicle to
move or the vehicle may acceler-
ate suddenly if t he accelerator
pedal is accidentally depressed.
■When involved in a minor
accident
Damage to the traction battery or
battery peripheral components
could cause malfunctions. Even if
it is a minor accident, have the
vehicle inspected by your Toyota
dealer.
Sudden start restraint
control (Drive-Start Con-
trol [DSC])

2325-2. Driving procedures
Owners Manual_USA_M42C01_enshown on the multi-information
display, read the message and fol-
low the instructions.
●If the door is unlocked with the
mechanical key, the EV system
cannot be started using the smart
key system. Refer to P.540 to start
the EV system. However, if the
electronic key is carried inside the
vehicle and the do
ors are locked
(  P.170), the EV system can be
started.
■When the ambient temperature
is low, such as during winter
driving conditions
●When starting the EV system, the
flashing time of the “READY” indi-
cator may be long. Leave the
vehicle as it is until the “READY”
indicator is steady on, as steady
means the vehicle is able to move.
●When the traction battery is
extremely cold (below approxi-
mately -22°F [-30°C]) under the
influence of the outside tempera-
ture, it may not be possible to start
the EV system. In this case, try to
start the EV system again after the
temperature of the traction battery
increases due to the outside tem-
perature increase, etc.
■Sounds and vibrations specific
to an battery electric vehicle
 P. 7 4
■If the 12-volt battery is dis-
charged
The EV system cannot be started
using the smart key system. Refer
to P.541 to restart the EV system.
■Electronic key battery depletion
 P. 1 6 2
■Conditions affecting operation
 P. 1 8 8
■Note for the entry function
 P. 1 8 9
■If there is a malfunction in the
smart key system
If “Smart Key System Malfunction”
is displayed on the multi-information
display, the system may be malfunc-
tioning. Have the vehicle inspected
by your Toyota dealer immediately.
■If the “READY” indicator does
not come on
In the event that the “READY” indi-
cator does not come on even after
performing the proper procedures
for starting the vehicle, contact your
Toyota dealer immediately.
■If the EV system is malfunction-
ing
 P. 8 0
■Electronic key battery
 P.497
■Operation of the power switch
●If the switch is not pressed shortly
and firmly, the power switch mode
may not change or the EV system
may not start.
●If attempting to restart the EV sys-
tem immediately after turning the
power switch to OFF, the EV sys-
tem may not start in some cases.
After turning the power switch to
OFF, please wait a few seconds
before restarti ng the EV system.
■Customization
If the smart key system has been
deactivated in a customized setting,
refer to P.540.
WARNING
■When starting the EV system
Always start the EV system while
sitting in the driver’s seat. Do not
depress the accelerator pedal
while starting the EV system
under any circumstances.
Doing so may cause an accident
resulting in death o r serious injury.

2345-2. Driving procedures
Owners Manual_USA_M42C01_en
Modes can be changed by
pressing the power switch with
the brake pedal released. (The
mode changes each time the
switch is pressed.)
WARNING
■Stopping the EV system in an
emergency
●If you want to stop the EV sys-
tem in an emergency while driv-
ing the vehicle, press and hold
the power switch for more than
2 seconds, or press it briefly 3
times or more in succession.
( P.505)
However, do not touch the
power switch while driving
except in an emergency. Turn-
ing the EV system off while driv-
ing will not cause a loss of
steering or braking control.
However, power assist for the
steering wheel may be lost mak-
ing it difficult to steer smoothly
before stopping the vehicle
depending on the remaining
charge in the 12-volt battery or
usage conditions. In this situa-
tion, you should pull over and
stop the vehicle as soon as it is
safe to do so.
●If the power switch is operated
while the vehicle is running, a
warning message will be shown
on the multi-info rmation display
and a buzzer sounds.
●When restarting the EV system
after an emergency shutdown,
press the power switch shortly
and firmly.
■When parking
Exhaust gases include harmful
carbon monoxide (CO), which is
colorless and odorless. Observe
the following precautions.
Failure to do so may cause
exhaust gases to enter the vehicle
and may lead to an accident
caused by light-headedness, or
may lead to death or a serious
health hazard.
●If the vehicle is in a poorly venti-
lated area or a closed area,
such as a garage, stop the EV
system.
●Do not leave the vehicle with
the EV system operating for a
long time. If such a situation
cannot be avoided, park the
vehicle in an open space and
ensure that exhaust fumes do
not enter the vehicle interior.
●Do not leave the EV system
operating in an area with snow
build-up, or where it is snowing.
If snowbanks build up around
the vehicle while the EV system
is operating, exhaust gases
may collect and enter the vehi-
cle.
Changing power switch
modes