2023 TOYOTA BZ4X heater

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.)

4126-1. Using the air conditioning system and defogger
Owners Manual_USA_M42C01_en
Turns the heated steering wheel
on/off
Each time the switch is pressed,
the operation condition changes as
follows.
AUTO (lit)  Hi (2 segments lit) 
Lo (1 segment lit)  Off
The AUTO indicator and/or level
indicator illuminates during
operation.
■The heated steering wheel can
be used when
The power swit ch is in ON.
■Front
Turns the seat heaters on/off
Each time the switch is pressed,
the operation condition changes as
follows.
AUTO (lit)  Hi (3 segments lit) 
Mid (2 segments lit)  Lo (1 seg-
ment lit)  Off
The AUTO indicator and/or level
indicator illuminates during
operation.
■Rear (outboard rear seats)
Each time the switch is pressed,
the operation condition changes
as follows.
Hi (3 segments lit)  Mid (2
segments lit)  Lo (1 segment
lit)  Off
When not in use, put the switch
in the neutral position. The indi-
cator will turn off.
NOTICE
■To prevent damage to the
seat heaters and seat ventila-
tors
Do not put heavy objects that
have an uneven surface on the
seat and do not stick sharp
objects (needles, nails, etc.) into
the seat.
■To prevent 12-volt battery dis-
charge
Do not use the functions when the
EV system is off.
Heated steering wheel
Seat heaters

4136-1. Using the air conditioning system and defogger
Owners Manual_USA_M42C01_en
6
Interior features
■The seat heaters can be used
when
The power swit ch is in ON.
Turns the seat ventilators on/off
Each time the switch is pressed,
the operation condition changes as
follows.
AUTO (lit)  Hi (3 segments lit) 
Mid (2 segments lit)  Lo (1 seg-
ment lit)  Off
The AUTO indicator and/or level
indicator illuminates during
operation.
■The seat ventilators can be
used when
The power switch is in ON.
■Air conditioning system-linked
control mode
When the seat ventilator fan speed
level is Hi, the seat ventilator fan
speed becomes higher according to
the fan speed of the air conditioning
system.
Front passenger’s side radi-
ant heater
Driver’s side radiant heater
Turns the radiant heater on/off
Each time the switch is pressed,
the operation condition changes as
WARNING
■To prevent causes of over-
heating and minor burn inju-
ries
Observe the following precautions
when using a seat heater
●Do not cover the seat with a
blanket or cushion when using
the seat heater.
●Do not use seat heater more
than necessary.
Seat ventilators (front
seats)
Radiant heaters

4146-1. Using the air conditioning system and defogger
Owners Manual_USA_M42C01_enfollows.
Hi (3 segments lit) 
Mid (2 seg-
ments lit)  Lo (1 segment lit) 
Off
The level indicator illuminates
during operation.
■The radiant heater can be used
when
The power swit ch is in ON.
●The power may be turned off auto-
matically be continually touching
the heater section. In that case,
turn the radiant heater switch on
again.
●It may take some time for the
heater temperature to rise.
WARNING
■To prevent causes of over-
heating and minor burn inju-
ries
Observe the following precautions
when using a radiant heater
●Do not use radia nt heater more
than necessary.
●Do not let blank ets, cushions,
luggage, etc., to touch the radi-
ant heater. Do not use.
■Use while driving
Do not touch the radiant heater or
hold your hand or foot over it by
releasing a hand from the handle
or a foot from the pedal.
Doing so may cause the driver to
mishandle the vehicle and cause
an accident, resulting in death or
serious injury.
NOTICE
■To prevent damage to the
radiant heater
Do not pierce with uneven objects
or sharp objects such as wires or
needles.

4527-1. Maintenance and care
Owners Manual_USA_M42C01_enage to the IR prote
ctive coating,
observe the following:
●If the windows are dirty, gently
wipe them with a cloth soaked in
water or lukewarm water as soon
as possible.
●If the windows are very dirty, do
not open and close them repeat-
edly.
WARNING
■Water in the vehicle
●Do not splash or spill liquid in
the vehicle.
Doing so may cause the electri-
cal components, etc., to mal-
function or catch fire.
●Do not get any of the SRS com-
ponents or wiring in the vehicle
interior wet.
(  P.35)
An electrical malfunction may
cause the airbags to deploy or
not function properly, resulting
in death or serious injury.
●Vehicles with wireless charger:
Do not let the wireless charger
(  P.430) get wet. Failure to do
so may cause the charger to
become hot and cause burns or
could cause electric shock
resulting in death or serious
injury.
■Cleaning the interior (espe-
cially instrument panel)
Do not use a polis h wax or polish
cleaner. The instrument panel
may reflect off the windshield,
obstructing the dr iver’s view and
leading to an accident, resulting in
death or serious injury.
NOTICE
■Cleaning detergents
●Do not use the following types
of detergent, as they may dis-
color the vehicle interior or
cause streaks or damage to
painted surfaces:
• Non-seat portions: Organic sub- stances such as benzene or
gasoline, alkaline or acidic solu-
tions, dye, and bleach
• Seats: Alkaline or acidic solu- tions, such as th inner, benzene,
and alcohol
●Do not use a polish wax or pol-
ish cleaner. The instrument
panel’s or other interior part’s
painted surface may be dam-
aged.
■Water on the floor
Do not wash the v ehicle floor with
water.
Vehicle systems such as the
audio system may be damaged if
water comes into contact with
electrical components such as the
audio system above or under the
floor of the vehicle. Water may
also cause the body to rust.
■When cleaning the inside of
the windshield
Do not allow glass cleaner to con-
tact the lens. Also, do not touch
the lens. ( P.259)
■Cleaning the inside of the rear
window
●Do not use a gla ss cleaner to
clean the rear window, as this
may cause damage to the rear
window defogger heater wires.
Use a cloth dampened with
lukewarm water to gently wipe
the window clean. Wipe the win-
dow in strokes running parallel
to the heater wires.

4537-1. Maintenance and care
Owners Manual_USA_M42C01_en
7
Maintenance and care
 Remove dirt using a water
dampened soft cloth or syn-
thetic chamois.
 Wipe the surface with a dry
soft cloth to remove any
remaining moisture.
■Cleaning the areas with satin-
finish metal accents
The metal areas use a layer of real
metal for the surface. It is necessary
to clean them regularly. If dirty areas
are left uncleaned for long periods
of time, they may be difficult to
clean.
 Remove dirt and dust using a
vacuum cleaner.
 Wipe off any excess dirt and
dust with a soft cloth damp-
ened with diluted detergent.
Use a diluted water solution of
approximately 5% neutral wool
detergent.
Wring out any excess water
from the cloth and thoroughly wipe off all remaining traces
of detergent.
 Wipe the surface with a dry,
soft cloth to remove any
remaining moisture. Allow the
leather to dry in a shaded and
ventilated area.
■Caring for leather areas
Toyota recommends cleaning the
interior of the vehicle at least twice a
year to maintain t he quality of the
vehicle’s interior.
 Remove dirt and dust using a
vacuum cleaner.
 Wipe it off with a soft cloth
dampened with neutral deter-
gent diluted to approximately
1%.
NOTICE
●Be careful not to scratch or
damage the heater wires.
■Cleaning the fr ont side win-
dows
Do not use any compound or
abrasive product (e.g., glass
cleaner, detergent, wax) to clean
the windows. It may damage the
coating.
Cleaning the areas with
satin-finish metal accents
Cleaning the leather areas
NOTICE
■Preventing damage to leather
surfaces
Observe the following precautions
to avoid damage to and deteriora-
tion of leather surfaces:
●Remove any dust or dirt from
leather surfaces immediately.
●Do not expose the vehicle to
direct sunlight for extended peri-
ods of time. Park the vehicle in
the shade, especially during
summer.
●Do not place items made of
vinyl, plastic, or containing wax
on the upholstery, as they may
stick to the leather surface if the
vehicle interior heats up signifi-
cantly.
Cleaning the synthetic
leather areas

4547-1. Maintenance and care
Owners Manual_USA_M42C01_en
Wring out any excess water
from the cloth and thoroughly
wipe off remaining traces of
detergent and water.
 To remove dust from the fab-
ric, use a vacuum cleaner or
adhesive tape.
However, please remove the dust
near the passenger airbag orna-
ment by hand.
Use a cloth dampened with
water to gently wipe the fabric
clean.
Do not use detergents to clean
the fabric.
 Vehicles with radiant heaters:
Do not hard scrub on the fab-
ric portion of the radiant heat-
ers (→P.413).
Cleaning fabric portions

4567-2. Maintenance
Owners Manual_USA_M42C01_en
warranty coverage.
The use of Toyota Repair Manuals
is recommended.
For details about warranty cover-
age, refer to the separate “Owner’s
Warranty Information Booklet” or
“Owner’s Manual Supplement”.
General maintenance
Listed below are the general
maintenance items that
should be performed at the
intervals specified in the
“Owner’s Warranty Informa-
tion Booklet” or “Owner’s
Manual Supplement/Sched-
uled Maintenance Guide”. It
is recommended that any
problem you notice should
be brought to the attention
of your Toyota dealer or
qualified service shop for
advice.
WARNING
■If the EV system is running
Turn the EV system off and
ensure that there is adequate
ventilation before performing
maintenance checks.
Motor compartment
ItemsCheck points
Brake fluid
Is the brake fluid at
the correct level?
(  P.468)
Power control
unit/heater
coolant
Is the power con-
trol unit/heater
coolant at the cor-
rect level?
( P.465, 467)
12-volt batteryCheck the connec-
tions. ( P.468)