remote control TOYOTA BZ4X 2023 Service Manual

4116-1. Using the air conditioning system and defogger
Owners Manual_USA_M42C01_en
6
Interior features
■Electronic key battery depletion
 P. 1 6 2
■When the electronic key bat-
tery is fully depleted
 P. 4 9 7
■Customization
Setting (e.g. Operation using “A/C”
on the wireless remote control) can
be changed. (Customizable fea-
tures: P.575)*: If equipped
WARNING
■Precautions for the Remote
Air Conditioning System
●Do not use the system if people
are in the vehicle.
Even when the system is in use,
the internal temperature may
still reach a high or low level
due to features such as the
automatic shut-off. Children and
pets left inside the vehicle may
suffer heatstroke dehydration or
hypothermia, or could result in
death or serious injury.
●Depending on the surrounding
environment, signals from the
wireless switch may transmit
further than expected. Pay
appropriate attention to the
vehicle’s surroundings and use
the switch only when necessary.
●Do not operate “A/C” if the hood
is open. The air conditioning
may operate unintentionally and
objects may be drawn into the
electrical cooling fan.
NOTICE
■To prevent the traction bat-
tery from being discharged
through incorrect operation
Use “A/C” only when necessary.
Heated steering
wheel*/seat heat-
ers*/seat ventila-
tors*/radiant heater*
 Heated steering wheel
Warms up the grip of the
steering wheel
 Seat heaters
Warm up the seat upholstery
 Seat ventilators
Maintain good airflow on the
seat upholstery by sucking air
into the seats
 Radiant heaters
Warm up the feet of the front
seats
WARNING
■To prevent minor burn inju-
ries
Care should be taken if anyone in
the following categories comes in
contact with the steering wheel or
seats when the heater is on:
●Babies, small children, the
elderly, the sick and the physi-
cally challenged
●Persons with sensitive skin
●Persons who are fatigued
●Persons who have taken alco-
hol or drugs that induce sleep
(sleeping drugs, cold remedies,
etc.)

4376-4. Using the other interior features
Owners Manual_USA_M42C01_en
6
Interior features
Fold down the armrest for use.
The coat hooks are provided
with the rear assist grips.
NOTICE
• A heating pad
• CDs, DVDs or other media
• A metal accessory
• A case or cover made of metal
●Electric wave type wireless
remote controls are being used
nearby
●The electronic key is not inside
the vehicle
●2 or more portable devices are
placed on the charging tray at
the same time
If charging is abnormal or the
operation indicator light contin-
ues to flash for any other reason,
the wireless charger may be mal-
functioning. Contact your Toyota
dealer.
■To prevent malfunctions and
data corruptions
●When charging, bringing a
credit, or other magnetic card,
or magnetic storage media
close to the charge area may
clear any stored data due to
magnetic influence. Also, do not
bring a wristwatch or other pre-
cision instrument close to the
charge area since doing so may
cause it to malfunction.
●Do not charge with a non-con-
tact IC card such as a transpor-
tation system IC card inserted
between the charging side of a
portable device and the charge
area. The IC chip may become
extremely hot and damage the
portable device or IC card. Be
especially careful not to charge
a portable device inside a case
or cover with a non-contact IC
card attached.
●Do not leave portable devices
inside the vehicle. The inside of
the vehicle can become hot in
extreme heat, which could
cause a malfunction.
■If the smartphone OS has
been updated
If the smartphone OS has been
updated to a newer version, its
charging specifications may have
changed significantly.
For details, check the information
on the manufacturer’s website.
■To prevent 12-volt battery dis-
charge
Do not use the wireless charger
for a long period of time when the
EV system is stopped.
Armrest
NOTICE
■To prevent damage to the
armrest
Do not apply too much load on the
armrest.
Coat hooks

4406-4. Using the other interior features
Owners Manual_USA_M42C01_en
Garage door operation indi-
cators
HomeLink
® logo
Appears while HomeLink® is oper-
ating.
When the HomeLink
® button is
pressed, the logo disappears even
while the HomeLink
® is operating.
Setting icon
Press the menu button to change
the setting.
Menu buttons
HomeLink
® buttons
■Codes stored in the Home-
Link® memory
●The registered codes are not
erased even if the 12-volt battery
cable is disconnected.
●If learning failed when registering
a different code to a HomeLink®
button that already has a code
registered to it, the already regis-
tered code will not be erased.
■Certification
 P. 6 2 4
■Before programming Home-
Link
®
 During programming, it is pos-
sible that garage doors,
gates, or other devices may
operate. For this reason,
make sure that people and
objects are clear of the
garage door or other devices
to prevent injury or other
potential harm.
 It is recommended that a new
battery be placed in the
remote control transmitter for
successful programming.
 Garage door opener motors
manufactured after 1995 may
be equipped with rolling code
protection. If this is the case,
you may need a stepladder or
other sturdy, safe device to
WARNING
■When programming a garage
door or other remote control
device
The garage door o r other device
may operate, so ensure people
and objects are out of danger to
prevent potential harm.
■Conforming to federal safety
standards
Do not use the HomeLink
® com-
patible transce iver with any
garage door opener or device that
lacks safety stop and reverse fea-
tures as required by federal safety
standards.
This includes any garage door
that cannot detect an interfering
object. A door or device without
these features increases the risk
of death or serious injury.
■When operating or program-
ming HomeLink®
Never allow a child to operate or
play with the HomeLink® buttons.
Programming HomeLink®

4416-4. Using the other interior features
Owners Manual_USA_M42C01_en
6
Interior features
reach the “Learn” or “Smart”
button on the garage door
opener motor.
■Programming HomeLink®
Steps 2 through 4 must be per-
formed within 60 seconds, oth-
erwise the HomeLink
® indicator
light will stop flashing and pro-
gramming will not be success-
fully completed.
1 Vehicles with Digital Rear-
view Mirror: Press the Home-
Link
® button or menu button
When the HomeLink® button is
pressed:
Homelink
® Training Tutorial will be
displayed to assist you program-
ming the HomeLink
®.
When Homelink
® Training Tutorial
is displayed, follow the instructions
displayed.
When the menu button is pressed:
Press the menu button and
select the “Set Up >”. Homelink
®
Training Tutorial will be displayed to
assist you programming the Home-
Link
®.
When Homelink
® Training Tutorial
is displayed, follow the instructions
displayed.
2 Press and release the Home-
Link
® button you want to pro-
gram and check that the
HomeLink
® indicator light
flashes (orange).
3 Point the remote control
transmitter for the device at
the rear view mirror, 1 to 3 in. (25 to 75 mm) from the
HomeLink
® buttons.
Keep the HomeLink® indicator light
in view while programming.
4 Program a device.
Programming a device other
than an entry gate (for U.S.A.
owners)
Press and hold the remote con-
trol transmitter button until the
HomeLink
® indicator light
changes from slowly flashing
orange to rapidly flashing green
(rolling code) or continuously lit
green (fixed code), then release
the button.
Programming an entry gate
(for U.S.A. owners)/Program-
ming a device in the Cana-
dian market
Press and release the remote

4697-3. Do-it-yourself maintenance
Owners Manual_USA_M42C01_en
7
Maintenance and care
and that there are no loose con-
nections, cracks, or loose
clamps. Terminals
Hold-down clamp
■Checking 12-volt battery
fluid
Check that the level is between
the “UPPER LEVEL” and
“LOWER LEVEL” lines.
“UPPER LEVEL” line
“LOWER LEVEL” line
If the fluid level is at or below the
“LOWER LEVEL” line, add distilled
water.
■Adding distilled water
1 Remove the vent plug.
2 Add distilled water.
If the “UPPER LEVEL” cannot be
seen, check the fluid level by look- ing directly at the cell.
3
Put the vent plug back on
and close it securely.
■Before recharging
When recharging, the 12-volt bat-
tery produces hydrogen gas which
is flammable and explosive. There-
fore, observe the following precau-
tions before recharging:
●If recharging with the 12-volt bat-
tery installed on the vehicle, be
sure to disconnect the ground
cable.
●Make sure the power switch on
the charger is off when connecting
and disconnecting the charger
cables to the 12-volt battery.
■After recharging/reconnecting
the 12-volt battery
●The EV system may not start. Fol-
low the procedure below to initial-
ize the system.
1 Shift the shift position to P.
2 Open and close any of the doors.
3 Restart the EV system.
●Unlocking the doors using the
Smart key system may not be
possible immediately after recon-
necting the 12-volt battery. If this
happens, use the wireless remote
control or the mechanical key to
lock/unlock the doors.
●Start the EV system with the
power switch in ACC. The EV sys-
tem may not start with the power
switch turned off. However, the EV
system will operate normally from

4987-3. Do-it-yourself maintenance
Owners Manual_USA_M42C01_enminal facing up.
4
When installing the key cover
and mechanical key, install
by conducting step 2 and
step 1 with the directions
reversed.
WARNING
■Battery precautions
Observe the following precau-
tions.
Failure to do so m ay result in
death or serious injury.
●Do not swallow the battery.
Doing so may cause chemical
burns.
●A coin battery o r button battery
is used in the electronic key. If a
battery is swallowed, it may
cause severe chemical burns in
as little as 2 hours and may
result in death or serious injury.
●Keep away new and removed
batteries from children.
●If the cover cannot be firmly
closed, stop using the electronic
key and stow the key in the
place where children cannot
reach, and then contact your
Toyota dealer.
●If you accidentally swallow a
battery or put a battery into a
part of your b ody, get emer-
gency medical attention imme-
diately.
■To prevent battery explosion
or leakage of flammable liq-
uid or gas
●Replace the battery with a new
battery of the same type. If a
wrong type of battery is used, it
may explode.
●Do not expose batteries to
extremely low pr essure due to
high altitude or extremely high
temperatures.
●Do not burn, bre ak or cut a bat-
tery.
NOTICE
■When replacing the battery
Use a flathead screwdriver of
appropriate size. Applying exces-
sive force may deform or damage
the cover.
■For normal operation after
replacing the battery
Observe the following precautions
to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery
to rust.
●Do not touch or move any other
component inside the remote
control.
●Do not bend either of the battery
terminals.

5398-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
■When the electronic key does
not work properly
●Make sure that the smart key sys-
tem has not been deactivated in
the customization setting. If it is
off, turn the function on.
(Customizable features: P.569)
●Check if battery-saving mode is
set. If it is set, cancel the function.
( P.188)
Use the mechanical key
( P.164) in order to perform the
following operations.
If you lose your keys
New genuine keys can be
made by your Toyota dealer
using the other key and the
key number stamped on
your key number plate.
Keep the plate in a safe
place such as your wallet,
not in the vehicle.
NOTICE
■When an electronic key is lost
If the electronic key remains lost,
the risk of vehicle theft increases
significantly. Visit your Toyota
dealer immediately with all
remaining electronic keys that
were provided wit h your vehicle.
If the electronic key
does not operate prop-
erly
If communication between
the electronic key and vehi-
cle is interrupted ( P.188)
or the electronic key cannot
be used because the battery
is depleted, the smart key
system and wireless remote
control cannot be used. In
such cases, the doors can
be opened and the EV sys-
tem can be started by fol-
lowing the procedure below.
NOTICE
■In case of a smart key system
malfunction, o r other key
related problems
Take your vehicle with all the elec-
tronic keys provided with your
vehicle to your Toyota dealer.
Locking and unlocking
the doors

5699-2. Customization
Owners Manual_USA_M42C01_en
9
Vehicle specifications
■Door lock ( P.167, 539)
■Smart key system and wireless remote control ( P.164, 187)
■Smart key system ( P.187)
FunctionDefault settingCustomized
setting
Unlocking using a mechani-
cal key
Driver’s door unlocked in
first step, all doors
unlocked in
second step
All doors
unlocked in first step
––O
Automatic door locking func-
tion
Shift position linked door
locking opera- tionOff
O–OSpeed linked door locking operation
Automatic door unlocking
function
Shift position linked door unlocking operationOff
O–ODriver’s door linked door unlocking operation
FunctionDefault settingCustomized setting
Operation signal (emer-
gency flashers)OnOffO–O
Operation buzzer volume5OffO–O1 to 7
Time elapsed before the
automatic door lock function
is activated if a door is not
opened after being unlocked
60 seconds
Off
O–O30 seconds
120 seconds
Open door reminder buzzerOnOff––O
FunctionDefault settingCustomized setting
Smart key systemOnOff––O
Smart door unlockingDriver’s doorAll the doorsO–O

5709-2. Customization
Owners Manual_USA_M42C01_en
*: This setting can be changed when the smart door unlocking setting is set
to Driver’s door.
■Wireless remote control ( P.164)
*: If equipped
■Power back door* ( P.175)
Number of consecutive door
lock operations2 timesAs many as
desired––O
Time elapsed before unlock-
ing all the door when gripping
and holding the driver’s door
handle
*
2 seconds
Off
––O1.5 seconds
2.5 seconds
FunctionDefault settingCustomized setting
Wireless remote controlOnOff––O
Unlocking operation
Driver’s door unlocked in
first step, all doors
unlocked in
second step
All doors
unlocked in first step
O–O
Theft deterrent panic modeOnOff––O
Locking operation when door
openedOnOffO–O
The function that activates
the switch of the wire-
less remote control when
locking the door
* ( P.175)
On (Unlocking
all the door)
Off
––OOn (Unlocking back door only)
FunctionDefault settingCustomized setting
Power back door opening
position51 to 4–O–
Power back door operationOnOff–O–
FunctionDefault settingCustomized setting

5719-2. Customization
Owners Manual_USA_M42C01_en
9
Vehicle specifications
*: If equipped
■Power windows ( P.212)
■Power switch ( P.234)
■Lights ( P.248)
*: Except for Canada
Buzzer volumeLevel 3Level 1–O–Level 2
Operation buzzerOffOn––O
Hands Free Power Back
Door (kick sensor)
*OnOff–OO
Kick in buzzer (kick sensor)*OnOff––O
Hands Free Power Back
Door (kick sensor) when the
power switch is OFF
*OnOff––O
FunctionDefault settingCustomized
setting
Key linked operation (open)OffOn––O
Key linked operation (close)OffOn––O
Wireless remote control
linked operation (open)OffOn––O
Wireless remote control
linked operation signal
(buzzer)
OnOff––O
FunctionCustomized setting
ACC modeON/OFFO–O
FunctionDefault settingCustomized setting
Daytime Running LightsOnOff*O–O
Light reminder buzzerOnOff––O
FunctionDefault settingCustomized setting