
1724-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en
Back door
The back door can be 
locked/unlocked and 
opened/closed by the fol-
lowing procedures.
WARNING
Observe the following precau-
tions.
Failure to do so may result in 
death or serious injury.
■Before driving
●Make sure that the back door is 
fully closed. 
If the back door is not fully 
closed, it may  open unexpect-
edly while driving and hit near-
by objects or luggage in the lug-
gage compartment may be 
thrown out, causing an acci-
dent.
●Do not allow child ren to play in 
the luggage compartment.
If a child is accidentally locked 
in the luggage compartment, 
they could get heat exhaustion 
or other injuries.
●Do not allow a child to open or 
close the back door.
Doing so may cause the back 
door to operate unexpectedly, 
or cause the child’s hands, 
head, or neck to be caught by 
the closing back door.
■Important points while driving
●Keep the back door closed 
while driving.
If the back door is left open, it 
may hit near-by objects or lug-
gage in the luggage compart-
ment may be  thrown out, 
causing an accident.
●Never let anyone sit in the lug-
gage compartment. 
In the event of sudden braking, 
sudden swerving or a collision, 
they are susceptible to death or 
serious injury.
■Back door handles
Do not hang any  object to the 
back door handles.
If any object is hung, the back 
door may suddenly shut, causing 
parts of the body to be caught, 
resulting in death o r serious injury.
■Operating the back door
Observe the following precau-
tions. 
Failure to do so may cause parts 
of the body to be caught, resulting 
in death or serious injury.
●Remove any heavy loads, such 
as snow and ice, from the back 
door before opening it. Failure 
to do so may cause the back 
door to suddenly shut again 
after it is opened.
●When opening or closing the 
back door, thoroughly check to 
make sure the surrounding area 
is safe.
●If anyone is in the vicinity, make 
sure they are safe and let them 
know that the back door is 
about to open or close.
●Use caution when opening or 
closing the back door in windy 
weather as it may move 
abruptly in strong wind. 

1734-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en
4
Before driving
■Using the entry function (if 
equipped)
Carry the electronic key to 
enable this function.
WARNING
●Vehicles without power back 
door: The back door may sud-
denly shut if it is not opened 
fully. It is more difficult to open 
or close the ba ck door on an 
incline than on a level surface, 
so beware of the back door 
unexpectedly opening or closing 
by itself. Make sure that the 
back door is fully open and 
secure before using the luggage 
compartment.
●Vehicles with power back door: 
The back door may suddenly 
shut if it is not opened fully, 
while on a steep incline. Make 
sure that the back door is 
secured before using the lug-
gage compartment.
●When closing the back door, 
take extra care to prevent your 
fingers, etc., from being caught.
●Vehicles without power back 
door: When closing the back 
door, make sure to press it 
lightly on its outer surface. If the 
back door handle is used to fully 
close the back door, it may 
result in hands or arms being 
caught.
●Vehicles without power back 
door: Do not pull on the back 
door damper stay ( P.175) to 
close the back d oor, and do not 
hang on the back door damper 
stay.
Doing so may cause hands to 
be caught or the back door 
damper stay to break, causing 
an accident.
●Vehicles with power back door: 
Do not pull on the back door 
spindle ( P.184) to close the 
back door, and do not hang on 
the back door spindle.
Doing so may cause hands to 
be caught or the back door spin-
dle to break, causing an acci-
dent.
●Vehicles without power back 
door: If a bicycle carrier or simi-
lar heavy object is attached to 
the back door, it may suddenly 
shut again after being opened, 
causing someone’s hands, 
head or neck to be caught and 
injured. When installing an 
accessory part to the back door, 
using a genuine Toyota part is 
recommended.
Unlocking and locking the 
back door from the out-
side 

1754-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en
4
Before driving
2 Loose the screw and move the 
cover.
3 Move the lever.
4 When installing, reverse the 
steps listed.
■Open door warning buzzer
 P. 1 7 0
■Using the wireless remote 
control
Press and hold the switch.
The power back door automatically 
opens/closes.
Pressing the switch while the power 
back door is opening/closing stops 
NOTICE
■Back door damper stays
The back door is equipped with 
damper stays that hold the back 
door in place.
Observe the following precau-
tions. 
Failure to do so may cause dam-
age to the back door damper stay, 
resulting in malfunction.
●Do not attach  any foreign 
objects, such as stickers, plastic 
sheets, or adhesives to the 
damper stay rod.
●Do not touch the damper stay 
rod with gloves or other fabric 
items.
●Do not attach any accessories 
other than genuine Toyota parts 
to the back door.
●Do not place your hand on the 
damper stay or apply lateral 
forces to it.
Opening/closing the back 
door (vehicles with power 
back door) 

1824-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en2
Loose the screw and move the 
cover.
3 Move the lever.
4 When installing, reverse the 
steps listed.
■Customization
Some functions can be customized. 
(Customizable features:  P.570)
WARNING
■Back door closer
●In the event that  the back door 
is left slightly open, the back 
door closer will automatically 
close it to the fu lly closed posi-
tion. It takes several seconds 
before the back door closer 
begins to operate. Be careful 
not to catch fingers or anything 
else in the back door, as this 
may cause bone fractures or 
other serious injuries.
●Use caution when using the 
back door closer as it still oper-
ates when the power back door 
system is canceled.
■Power back door
Observe the following precautions 
when operating the 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.
●If anyone is in the vicinity, make 
sure they are safe and let them 
know that the back door is 
about to open or close. 

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. 

1844-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en
WARNING
●When putting your foot near the 
lower center part of the rear 
bumper and moving it from the 
rear bumper, be  careful not to 
touch the exhaust pipes until 
they have cooled down suffi-
ciently, as touching hot exhaust 
pipes can cause burns.
●Do not leave the electronic key 
within the eff ective range 
(detection area) of the luggage 
compartment.
NOTICE
■Back door spindles
The back door is equipped with 
spindles that hold the back door in 
place.
Observe the following precau-
tions. 
Failure to do so may cause dam-
age to the back door spindle, 
resulting in malfunction.
●Do not attach any foreign 
objects, such as stickers, plastic 
sheets, or adhesives to the 
spindle rod.
●Do not touch the  spindle rod 
with gloves or other fabric items.
●Do not attach any accessories 
other than genuine Toyota parts 
to the back door.
●Do not place your hand on the 
spindle or apply lateral forces to 
it.
■To prevent back door closer 
malfunction
Do not apply excessive force to 
the back door while the back door 
closer is operating. Applying 
excessive force may cause the 
back door closer t o malfunction.
■To prevent damage to the 
power back door
●Make sure that there is no ice 
between the back door and 
frame that would prevent move-
ment of the back door. Operat-
ing the power back door when 
excessive load is present on the 
back door may cause a mal-
function.
●Do not apply excessive force to 
the back door while the power 
back door is operating.
●Take care not to damage the 
sensors (installed on the right 
and left edges of the power 
back door) with a knife or other 
sharp object. If the sensor is 
disconnected, the power back 
door will not close automatically.
■Close & lock function
When closing the power back 
door using the close & lock func-
tion, a different b uzzer than the 
normal one will so und before the 
operation begins.
To check that the operation has 
started correctly,  check that a dif-
ferent buzzer than the normal one 
has sounded.
Additionally, when the power back 
door is fully closed and locked, 
operation signals will indicate that 
all of the doors have been locked.
Before leaving the vehicle, make 
sure that the operation signals 
have operated and  that all of the 
doors are locked. 
![TOYOTA BZ4X 2023  Owners Manual 1874-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en
4
Before driving
■Antenna location Antennas outside the cabin 
(driver’s side/front passenger’s 
side [if equipped])
An TOYOTA BZ4X 2023  Owners Manual 1874-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en
4
Before driving
■Antenna location Antennas outside the cabin 
(driver’s side/front passenger’s 
side [if equipped])
An](/manual-img/14/59242/w960_59242-186.png)
1874-2. Opening, closing and locking the doors
Owners Manual_USA_M42C01_en
4
Before driving
■Antenna location Antennas outside the cabin 
(driver’s side/front passenger’s 
side [if equipped])
Antennas outside the cabin 
(rear) (if equipped)
Antennas inside the cabin
Antenna inside the luggage com- partment
Antenna outside the luggage 
compartment
■Effective range 
(areas within 
which the electronic key is 
detected)
When locking or unlocking the 
doors
The system can be operated when 
the electronic key is within about 2.3 
ft. (0.7 m) of the driver’s door han-
dle, front passenger’s door handle 
(if equipped), rear door handles (if 
equipped) and back door opener 
switch (if equipped). (Only the doors 
detecting the key can be operated.)
When starting the EV system or 
changing power switch modes
The system can be operated when 
the electronic key i s inside the vehi-
cle.
■If an alarm sounds or a warning 
message is displayed
An alarm sounds and warning mes-
sage displays shown on the multi-
information display are used to pro-
tect against unexpected accidents 
or theft of the vehicl e resulting from 
erroneous operation. When a warn-
ing message is displayed, take 
appropriate measures based on the 
displayed message.
When only an alarm sounds, cir-
cumstances and correction proce-
dures are as follows.
Smar t key system
The following operations 
can be performed simply by 
carrying the electronic key 
on your person, for example 
in your pocket. The driver 
should always carry the 
electronic key.
 Locks and unlocks the 
doors
* ( P.167)
 Locks and unlocks the back 
door
* ( P.173)
 Starts the EV system 
( P.231) 

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