2022 TOYOTA BZ4X change key battery

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1-4. Theft deterrent system
alarm system.)
●The doors are unlocked using the mechanical key.
●A person inside the vehicle opens a door or hood, or unlocks the vehicle
using an inside lock button.
●The 12-volt battery is disconnected.
( P.547)
■Alarm-operated door lock
In the following cases, depending on the situation, the door may automatically lock to prevent improper entry into the
vehicle:
●When a person remaining in the vehi-
cle unlocks the door and the alarm is activated.
●While the alarm is activated, a person remaining in the vehicle unlocks the door.
●When recharging or replacing the 12-volt battery.
■The intrusion sensor and tilt
sensor detection
 The intrusion sensor detects
intruders or movement in the
vehicle.
 The tilt sensor detects changes
in vehicle inclination, such as
when the vehicle is towed away.
This system is designed to deter
and prevent vehicle theft but does
not guarantee absolute security
against all intrusions.
■Setting the intrusion sensor
and tilt sensor
The intrusion sensor and tilt sensor
will be set automatically when the
alarm is set. ( P. 7 7 )
■Canceling the intrusion sensor
and tilt sensor
If you are leaving pets or other
moving things inside the vehicle,
make sure to disable the intrusion
sensor and tilt sensor before setting
the alarm, as they will respond to
movement inside the vehicle.
1 Turn the power switch off.
NOTICE
■To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper operation of the system cannot be
guaranteed.
Intrusion sensor (if
equipped) and tilt sensor (if
equipped)

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4-2. Opening, closing and locking the doors
Before driving
■Conditions affecting the operation
of the smart entry & start system or wireless remote control
 P. 2 0 4
■If the smart entry & start system or
the wireless remote control does not operate properly
●Use the mechanical key to lock and unlock the doors. ( P.542)
●Replace the key battery with a new one if it is depleted. ( P.499)
■If the 12-volt battery is discharged
The doors cannot be locked and
unlocked using the smart entry & start system or wireless remote control. Lock or unlock the doors using the mechani-
cal key. ( P.542)
■Rear seat reminder function
●In order to remind you not to forget
luggage, etc., on the rear seat, when the power switch is turned off after any of the following conditions is met,
a buzzer will sound and a message will be displayed on the multi-informa-tion display for approximately 6 sec-
onds. • The EV system is started within 10 minutes after opening and closing a
rear door. • A rear door has been opened and closed after the EV system was
started.
However, if a rear door is opened and then closed within approximately 2 sec-
onds, the rear seat reminder function may not operate.
●The rear seat reminder function deter-mines that luggage, etc., has been placed on a rear seat based on open-
ing and closing of a rear door. There- fore, depending on the situation, the rear seat reminder function may not
operate and you may still forget lug- gage, etc., on the rear seat, or it may operate unnecessarily.
●The rear seat reminder function can be enabled/disabled. ( P.561)
■Customization
Settings (e.g. unlocking function using a key) can be changed. (Customizable features: P.564)
WARNING
■To prevent an accident
Observe the following precautions while driving the vehicle.
Failure to do so may result in a door opening and an occupant falling out, resulting in death or serious injury.
●Ensure that all doors are properly closed and locked.
●Do not pull the inside handle of the doors while driving.Be especially careful for the front
doors, as the doors may be opened even if the inside lock buttons are in locked position.
●Set the rear door child-protector locks when children are seated in
the rear seats.
■When opening or closing a door
Check the surroundings of the vehicle such as whether the vehicle is on an incline, whether there is enough
space for a door to open and whether a strong wind is blowing. When open-ing or closing the door, hold the door
handle tightly to prepare for any unpredictable movement.
■When using the wireless remote control and operating the power windows
Operate the power window after checking to make sure that there is no possibility of any passenger having
any of their body parts caught in the window. Also, do not allow children to operate the wireless remote control. It
is possible for children and other pas- sengers to get caught in the power window.

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4-2. Opening, closing and locking the doors
Before driving
and immobilizer system from operating
properly. (Ways of coping: P.542)
●When the electronic key battery is
depleted
●Near a TV tower, electric power plant,
gas station, radio station, large dis- play, airport or other facility that gen-erates strong radio waves or electrical
noise
●When carrying a portable radio, cellu-
lar phone, cordless phone or other wireless communication device
●When the electronic key is in contact with, or is covered by the following metallic objects
• Cards to which aluminum foil is attached• Cigarette boxes that have aluminum
foil inside • Metallic wallets or bags• Coins
• Hand warmers made of metal • Media such as CDs and DVDs
●When other wireless keys (that emit radio waves) are being used nearby
●When carrying the electronic key together with the following devices that emit radio waves
• Another vehicle’s electronic key or a wireless key that emits radio waves• Personal computers or personal digi-
tal assistants (PDAs) • Digital audio players• Portable game systems
●If window tint with a metallic content or metallic objects are attached to the
rear window
●When the electronic key is placed
near a battery charger or electronic 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 (detection areas),
the system may not operate properly in the following cases:
• The electronic key is too close to the
window or outside door handle, 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 room, 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 recep- tion conditions, it may be detected by the antenna outside the cabin and the
door will become lockable from the outside, possibly trapping the elec-tronic key inside the vehicle.
●As long as the electronic key is within the effective range, the doors may be
locked or unlocked by anyone. How- ever, only the doors detecting the electronic key can be used to unlock
the vehicle.
●Even if the electronic key is not inside
the vehicle, it may be possible 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
automatically be locked after approxi- mately 30 seconds if the doors are not opened and closed.)
●When the lock operation is performed using the lock sensor, recognition sig-
nals will be shown up to two consecu- tive times. After this, no recognition signals will be given.
●If the wireless remote control is used to lock the doors when the electronic
key is near the vehicle, there is a pos- sibility 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

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4-2. Opening, closing and locking the doors
lock operation. Remove the gloves
and touch the lock sensor again.
●If the door handle becomes wet while
the electronic key is within the effec- tive range, the door may lock and unlock repeatedly. In that case, follow
the following correction procedures to wash the vehicle:• P l ac e t h e e l ec t ro n ic ke y i n a l oc at i o n 2
m (6 ft.) or more away from the vehi- cle. (Take care to ensure that the key is not stolen.)
• Set the electronic key to battery-sav- ing mode to disable the smart entry & start system. ( P.204)
●If the electronic key is inside the vehi- cle and a door handle becomes wet
during a car wash, a message may be shown on the multi-information dis-play and a buzzer will sound outside
the vehicle. To turn off the alarm, lock all the doors.
●The lock sensor may not work prop-erly if it comes into contact with ice, snow, mud, etc. Clean the lock sensor
and attempt to operate it again.
●A sudden approach to the effective
range or door handle may prevent 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 lon-
ger 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 2 m (6
ft.) of the vehicle.
●The smart entry & start system can be
deactivated in advance.
●Setting the electronic key to battery-
saving mode helps to reduce key bat- tery depletion. ( P.204)
■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 vehi-
cle when operating the system from the outside of the vehicle.
Depending on the position and holding
condition of the electronic key, the key may not be detected correctly and the system may not operate properly. (The
alarm may go off accidentally, or the door lock prevention may not operate.)
■If the smart entry & start 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.542)
However, if the mechanical key is used
while the alarm system is set, the warn-
ing will sound. ( P.77)
●If the EV system cannot be started,
refer to P.543
■Customization
Settings (e.g. smart entry & start sys- tem) can be changed.
(Customizable features:P.565)
If the smart entry & start system has been deactivated by a customized set-
ting, refer to the explanations for the fol- lowing operations.
●Locking and unlocking the doors:Use the wireless remote control or mechanical key. ( P.185, 542)
●Starting the EV system and changing power switch modes: P. 5 4 3
●Stopping the EV system:P. 2 4 5

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5-2. Driving procedures
mechanical key, the EV system can-
not be started using the smart entry & start system. However, if the elec-tronic key is carried inside the vehicle
and the doors are locked ( P.188), 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” indicator 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 approximately -30°C [-22°F]) under the influence of the out-
side temperature, it may not be possi- ble 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 temperature increase, etc.
■Sounds and vibrations specific to
an battery electric vehicle
 P. 8 4
■If the 12-volt battery is discharged
The EV system cannot be started using
the smart entry & start system. Refer to P.544 to restart the EV system.
■Electronic key battery depletion
 P. 1 8 2
■Conditions affecting operation
 P. 2 0 4
■Note for the entry function
 P. 2 0 5
■Steering lock function (if equipped)
●After turning the power switch off and opening and closing the doors, the steering wheel will be locked due to
the steering lock function. Operating the power switch again automatically cancels the steering lock.
●When the steering lock cannot be released, “Push Power Switch while
Turning the Steering Wheel in Either
Direction” will be displayed on the multi-information display.Check that the shift position is in P.
Press the power switch shortly and firmly while turning the steering wheel left and right.
●To prevent the steering lock motor from overheating, operation of the
motor may be suspended if the EV system is turned on and off repeatedly in a short period of time. In this case,
refrain from operating the EV system. After about 10 seconds, the steering lock motor will resume functioning.
■If the “READY” indicator does not
come on
In the event that the “READY” indicator does not come on even after performing
the proper procedures for starting the vehicle, contact any authorized Toyota retailer or Toyota authorized repairer, or
any reliable repairer immediately.
■If the EV system is malfunctioning
 P. 9 0
■Electronic key battery
 P. 4 9 9
■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 system immediately after turning the power switch off, the EV system may not
start in some cases. After turning the power switch off, please wait a few seconds before restarting the EV sys-
tem.

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5-4. Using the driving support systems
Cameras and sensors are used to
detect parked vehicles, making it
easier to identify parking spaces.
Front camera
NOTICE
●While using Remote control func- tion, if the home button or power
button of the smartphone is pressed and the screen is locked, Remote control function will be sus-
pended. Assist can be resumed if the Remote Park app is reopened within 3 minutes. If 3 minutes or
more elapse, assist will be can- celed.
●Do not use the Remote Park app with devices other than those which operation has been confirmed by
the maker. Otherwise the system may not operate correctly.
●When the ambient temperature is low, it may take time for the system to start, due to 12-volt battery
charging.
●If the 12-volt battery voltage drops,
assistance will be canceled.
●When using Remote control func-
tion on a slope, the vehicle speed will be slower and the distance that the vehicle will approach objects
will become longer than when on a level road surface.
●If a system temporary failure occurs, after the vehicle is stopped by the electronic parking brake or
the shift position being changed to P, the power switch may turn off and the system may be canceled.
In this case, have the vehicle inspected by any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
●If a system malfunction occurs,
assistance may be temporarily sus- pended. If the system returns to normal, operation can be resumed.
Follow the content on the smart- phone screen to resume operation.
●Remote control function cannot be started if the EV system has been started using an aftermarket remote
starter.
●After Remote control function com-
pletes, the parking brake will be engaged as per regulations. As the parking brake may freeze and not
be able to be released, avoid using Remote control function in extremely cold areas. Also, if the
parking brake freezes, it may make a noise when it is released. How-ever, this does not indicate a mal-
function.
●Do not use the remote function with
an electronic key that has a depleted battery.
●The remote function cannot be started while the vehicle charging connector is connected. If support
is accidentally started, it may end abnormally.
Type of Advanced Park cam-
eras and sensors

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6-1. Using the air conditioning system and defogger
normal air conditioning operation. Also,
the outside of the windshield may fog up due to the outside temperature, humidity or air conditioning set temperature.
■Security feature
Any unlocked doors will be automatically locked when the system is operating. The emergency flashers flash to indicate
that the doors have been locked.
■Conditions affecting operation
 P. 2 0 4
■While the Remote Air Conditioning System is operating
●Depending on the operating condition of the Remote Air Conditioning Sys-
tem, the electric fan may spin and an operating noise may be heard.However, this does not indicate a mal-
function.
●The Remote Air Conditioning System
may stop operating temporarily if other features that use electricity (for example, the seat heater, lights, wind-
shield wipers) are in operation or if the charge level of the 12-volt battery becomes low.
●The headlights, windshield wiper, meter, etc. will not operate.
●The intrusion sensor will automatically be canceled.
■Electronic key battery depletion
 P. 1 8 2
■When the electronic key battery is fully depleted
 P. 4 9 9
■Customization
Setting (e.g. Operation using “A/C” on the wireless remote control) can be changed. (Customizable features:
 P.572)
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. Chil-
dren and pets left inside the vehicle may suffer heatstroke dehydration or hypothermia, or could result in
death or serious injury.
●Depending on the surrounding envi-
ronment, signals from the wireless switch may transmit further than expected. Pay appropriate attention
to the vehicle’s surroundings and use the switch only when neces-sary.
●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 battery
from being discharged through incorrect operation
Use “A/C” only when necessary.

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6-4. Using the other interior features
Fold down the armrest for use.
NOTICE
• A case or cover attached with an uneven or tilted surface, so that the
charging side is not flat
• Thick decorations
• Accessories, such as finger rings, straps, etc.
●When the portable device is in con-tact with, or is covered by any of the
following metallic objects:
• A card that has metal on it, such as
aluminum foil, etc.
• A pack of cigarettes that includes
aluminum foil
• A wallet or bag that is made of
metal
•Coins
• 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 opera- tion indicator light continues to flash
for any other reason, the wireless charger may be malfunctioning. Con-tact any authorized Toyota retailer or
Toyota authorized repairer, or any reli- able repairer.
■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 preci-sion instrument close to the charge
area since doing so may cause it to malfunction.
●Do not charge with a non-contact IC card such as a transportation sys-tem 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 malfunc- tion.
■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 sys- tem is stopped.
Armrest