2023 TOYOTA BZ4X key battery

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Owners Manual_USA_M42C01_en
Pictorial indexSearch by illustration
For safety
and securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Electric Vehicle
systemReading charging-related information
(Main topics: Electric Vehicle system, charging methods)
Vehicle status
information and
indicatorsReading driving-related information
(Main topics: Meters, multi-information display)
Before driving
Opening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats)
Driving
Operations and advice which are necessary for driving
(Main topics: Starting Elect ric Vehicle system, driving
support systems)
Interior featuresUsage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance
and careCaring for your vehicle and maintenance
procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arisesWhat to do in case of malfunction and emergency
(Main topics: 12-volt battery discharge, flat tire)
Vehicle
specificationsVehicle specifications, customizable features
(Main topics: Fluids, tire inflation pressure)
For ownersReporting safety defects for U.S. owners, and seat
belt, SRS airbag and headlight aim instructions for
Canadian owners
IndexSearch by symptom
Search alphabetically

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Owners Manual_USA_M42C01_enTABLE OF CONTENTS
For your information...................
7
Reading this manual ................ 12
How to search .......................... 13
Pictorial index .......................... 14
1-1. For safe use Before driving ................... 26
For safe driving ................ 27
Seat belts ......................... 29
SRS airbags ..................... 34
Front passenger occupant classification system ...... 44
1-2. Child safety Riding with children .......... 49
Child restraint systems..... 50
1-3. Emergency assistance Safety Connect ................ 64
1-4. Theft deterrent system Immobilizer system .......... 68
Alarm................................ 69
2-1. Electric vehicle system Electric Vehicle system fea-tures ............................... 72
Electric Vehicle system pre- cautions .......................... 76
Battery Electric Vehicle driv- ing tips ............................ 81
Driving range.................... 832-2. Charging
Charging equipment ......... 85
AC charging cable ............ 87
Locking and unlocking AC charging connector ......... 93
Power sources that can be used................................ 96
Charging methods ............ 98
Charging tips ................. 100
Things to know before charging....................... 102
How to use AC charging 105
How to use DC charging 113
Using the charging schedule function ........................ 118
Using My Room Mode ... 129
When charging cannot be carried out ................... 133
3-1. Instrument cluster Warning lights and indicators.................................... 148
Gauges and meters ....... 152
Multi-information display 155
4-1. Key information Keys .............................. 162
Digital key ...................... 165
1For safety and security
2Electric Vehicle system
3
Vehicle status
information and
indicators
4Before driving

5TABLE OF CONTENTS
Owners Manual_USA_M42C01_en
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7-1. Maintenance and care Cleaning and protecting the vehicle exterior ............ 448
Cleaning and protecting the vehicle interior ............. 451
7-2. Maintenance Maintenance requirements.................................... 455
General maintenance.... 456
Emission inspection and maintenance (I/M) programs.................................... 459
7-3. Do-it-yourself maintenance Do-it-yourself service precau-tions............................. 460
Hood ............................. 462
Positioning a floor jack .. 464
Motor compartment ....... 465
Tires .............................. 472
Replacing the tire .......... 485
Tire inflation pressure.... 491
Wheels ......... .................493
Air conditioning filter ...... 494
Electronic key battery.... 497
Checking and replacing fuses .................................... 499
Headlight aim ................ 501
Light bulbs..................... 5028-1. Essential information
Emergency flashers....... 504
If your vehicle has to be stopped in an emergency.................................... 505
If the vehicle is submerged or water on the road is rising.................................... 506
8-2. Steps to take in an emer- gency
If your vehicle needs to be towed ........................... 507
If you think something is wrong........................... 511
If a warning light turns on or a warning buzzer sounds 513
If a warning message is dis- played .......................... 522
If you have a flat tire ...... 527
If the EV system will not start
.................................... 537
If you lose your keys...... 539
If the electronic key does not operate properly .......... 539
If the 12-volt battery is dis- charged ....................... 541
If your vehicle overheats 545
If the vehicle becomes stuck .................................... 547
7Maintenance and care8When trouble arises

1122-2. Charging
Owners Manual_USA_M42C01_en
4Close the AC charging inlet
cap and close the charging
port lid.
5 Remove the plug from the
outlet when the charging
equipment will not be used
for a prolonged period of
time.
Hold the body of the plug when
removing.
Make sure to put the cable away
immediately afte r disconnecting.
(  P. 1 1 2 )
When leaving the plug inserted,
inspect the plug and connector
once a month to check if dirt or dust
has accumulated.
■When the outside temperature
is low or high
The level shown on the SOC (State
of Charge) gauge ( P.152) may
drop slightly when the power switch
is turned to ON, e ven if charging
has been completed and the trac-
tion battery is fully charged. How- ever, this does not indicate a
malfunction.
■When removing the charging
connector
Press the latch release button,
check that the lever raises up, and
then pull the charging connector
towards you.
If the lever does not raise up even
after the latch release button is
pressed, the charging connector is
locked. If this occurs, unlock the
doors using the smart key system or
wireless remote control to unlock
the charging connector. ( P.167)
■If the charging connector can-
not be unlocked
 P. 9 5
WARNING
■After charging
Remove the plug if it will not be
used for a long time.
Dirt and dust may accumulate
plug or outlet, which could cause
a malfunction or fire, possibly
leading to death or serious injury.
NOTICE
■After charging
●Store the AC charging cable out
of reach from infants and chil-
dren.

1624-1. Key information
Owners Manual_USA_M42C01_en
4-1.Key information
The following keys are provided
with the vehicle.Electronic keys
• Operating the smart key system ( P.187)
• Operating the wireless remote control function ( P.164)
• Operating the Remote Air Condi- tioning System ( P.409)
Mechanical keys
Key number plate
■When riding in an aircraft
When bringing an electronic key
onto an aircraft, make sure you do
not press any buttons on the elec-
tronic key while inside the aircraft
cabin. If you are carrying an elec-
tronic key in your bag, etc., ensure
that the buttons are not likely to be
pressed accidentally. Pressing a
button may cause the electronic key
to emit radio waves that could inter-
fere with the oper ation of the air-
craft.
■Electronic key battery depletion
●The standard battery life is 1 to 2
years.
●If the battery becomes low, an
alarm will sound in the cabin and a message will be disp
layed on the
multi-information display when the
EV system stops.
●To reduce key battery depletion
when the electronic key is to not
be used for long periods of time,
set the electronic key to the bat-
tery-saving mode. ( P.188)
●As the electronic key always
receives radio waves, the battery
will become depleted even if the
electronic key is not used. The fol-
lowing symptoms indicate that the
electronic key battery may be
depleted. Replace the battery
when necessary.
• The smart key system or the wire- less remote contro l does not oper-
ate.
• The detection area becomes smaller.
• The LED indicator on the key sur-
face does not turn on.
You can replace the battery by your-
self ( P.497). However, as there is
a danger that the electronic key may
be damaged, it is recommended
that replacement is carried out by
your Toyota dealer.
●To avoid serious deterioration, do
not leave the electronic key within
3 ft. (1 m) of the following electri-
cal appliances that produce a
magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Table lamps
• Induction cookers
●If the electronic key is near the
vehicle for longer than necessary,
even if the smart key system is not
operated, the key battery may
become depleted faster than nor-
mal.
■If a message regarding the state
of the electronic key or power
switch mode, e tc. is shown
To prevent trapping the electronic
Keys
Key types

1634-1. Key information
Owners Manual_USA_M42C01_en
4
Before driving
key inside the vehicle, leaving the
vehicle carrying the electronic key
on your person without turning the
power switch to O FF or other pas-
sengers from unintentionally taking
the key out of the vehicle, etc., a
message that prompts the user to
confirm the state of the electronic
key or power switch mode may be
shown on the multi -information dis-
play. In those cases, follow the
instructions on the display immedi-
ately.
■If “Key Battery Low Replace
Key Battery” is displayed on
the multi-information display
The electronic key has a low battery.
Replace the electronic key battery.
(  P.497)
■Replacing the battery
 P. 4 9 7
■Confirmation of the registered
key number
The number of keys already regis-
tered to the vehicle can be con-
firmed. Ask your Toyota dealer for
details.
■If “A New Key has been Regis-
tered Contact Your Dealer for
Details” is displayed on the
multi-information display
This message will be displayed
each time the driver’s door is
opened when the doors are
unlocked from the outside for
approximately 10 days after a new
electronic key has been registered.
If this message is displayed but you
have not had a new electronic key
registered, ask your Toyota dealer to
check if an unknow n electronic key
(other than those in your posses-
sion) has been registered.
NOTICE
■To prevent key damage
●Do not drop the keys, subject
them to strong shocks, or bend
them.
●Do not expose the keys to high
temperatures for long periods of
time.
●Do not get the keys wet or wash
them in an ultrasonic washer,
etc.
●Do not attach m etallic or mag-
netic materials to the keys or
place the keys close to such
materials.
●Do not disassemble the keys.
●Do not attach a s ticker or any-
thing else to the surface of the
electronic key.
●Do not place the keys near
objects that produce magnetic
fields, such as TVs, audio sys-
tems and induction cookers.
●Do not place the keys near
medical electrical equipment
such as low-frequency therapy
equipment or microwave ther-
apy equipment, and do not
receive medical attention with
the keys on your person.
■Carrying the electronic key
on your person
Carry the electronic key 3.9 in.
(10 cm) or more away from elec-
tric appliances that are turned on.
Radio waves emitte d from electric
appliances within 3.9 in. (10 cm)
of the electronic key may interfere
with the key, causing the key to
not function properly.

1644-1. Key information
Owners Manual_USA_M42C01_en
The electronic keys are
equipped with the following
wireless remote control:Locks all the doors ( P.167)
Unlocks all the doors
( P.167)
Opens the side windows
*1
( P.167)
Opens and closes the power
back door
*2 (  P.175)
Operates Remote Air Condi-
tioning System ( P.409)
Sounds the alarm ( P.164)
*1: These settings must be custom-
ized at your Toyota dealer.
*2: If equipped
■Theft deterrent panic mode
When is pressed for longer
than about 1 second, an alarm will
sound intermittently and the vehicle
lights will flash to deter any person
from trying to break into or damage
your vehicle.
To stop the alarm, press any button
on the electronic key.
■Conditions affecting operation
 P.188
To take out the mechanical key,
slide the release lever and
take the key out.
The mechanical key can only be
inserted in one direction, as the key
only has grooves on one side. If the
key cannot be inserted in a lock cyl-
inder, turn it over a nd re-attempt to
insert it.
After using the mechanical key,
store it in the electronic key. Carry
the mechanical k ey together with
the electronic key. If the electronic
key battery is depleted or the entry
function does not operate properly,
you will need the mechanical key.
(  P.539)
NOTICE
■In case of a smart key system
malfunction or other key-
related problems
 P. 5 3 9
■When an electronic key is lost
 P. 5 3 9
Wireless remote control
Using the mechanical key

1664-1. Key information
Owners Manual_USA_M42C01_en
key of the vehicle if traveling
to a location with unreliable
communications.
 If the smartphone battery is
depleted, the smartphone
cannot be used as Digital Key.
If the battery level is low, be
sure to charge the smart-
phone prior to going out.
 The Digital Key system is
related to the Smart key sys-
tem. If the Smart key system
has been deactivated in the
vehicle customization setting,
the Digital Key will also be
disabled.
 Depending on the radio wave
environment, the Digital Key
may not be able to be used.
P. 1 8 8
 When transferring vehicle
ownership, make sure to
delete the Digital Keys.
 If the vehicle is not operated
for 14 days or more, the Digi-
tal Key will not connect auto-
matically. Therefore, it may
take some time before the
system operates after a door
handle is touched.
 A part of the services may be
stopped for a certain period of
time due to server mainte-
nance. However, registered
Digital Keys can be used
during the maintenance.
 A smartphone with the Digital
Key App enabled will be able to lock and unlock the doors,
start the EV system and per-
form any other operations as
same as the electronic key of
the vehicle. Be especially
careful not to lose the smart-
phone or allow it to be stolen.
If the smartphone is lost or
stolen, contact your Toyota
dealer immediately.
 When taking your vehicle to a
Toyota dealer for an inspec-
tion or repairs, make sure to
bring an electronic key.