2023 TOYOTA BZ4X battery

832-1. Electric vehicle system
Owners Manual_USA_M42C01_en
2
Electric Vehicle system
Improper tire inflation pressure
can cause poor electricity con-
sumption.
Also, as snow tires can cause
large amounts of friction, their
use on dry roads will lead to
poor electricity consumption.
Use tires that are appropriate for
the season.
Carrying heavy luggage will lead
to poor electricity consumption.
Avoid carrying unnecessary lug-
gage. A value for which a sufficient
level of driving performance can
be provided is estimated based
on the remaining charge of the
traction battery, the state of the
traction battery, the outside tem-
perature, etc., and is displayed
on the multi-information display.
(
P.152)
When the outside temperature
is low, the traction battery output
may be decreased, causing the
possible driving distance to be
shorter. However, this is not a
malfunction. Charge the trac-
tion battery earlier than usual.
Possible driving distance varies
significantly depending on how
the vehicle is driven, road condi-
tions, the weather, the outside
temperature, usage conditions
of electrical components and the
Luggage
Driving range
The driving range dis-
played on the multi-informa-
tion display, etc., shows the
reference distance that driv-
ing is possible, and the
actual distance that can be
driven may differ from that
displayed.
Displayed value
Tips for extending the
driving range

872-2. Charging
Owners Manual_USA_M42C01_en
2
Electric Vehicle system
*1: The indicator is dimmed when the charging is done
*2: Flashes for a certain period of time, and then turns off.
Illumina-
tion/flashi ng pat- tern
Vehicle condition
Illumi-
nated
 Charging is in prog-
ress
*1
Battery heater ( P.99)
is operating
Flashes
nor-
mally
*2
When charging sched-
ule is registered
(  P.118) and AC
charging cable is con-
nected to vehicle
Flashes
rapidly
*2
When charging cannot
be carried out due to
malfunction in a power
source or the vehicle,
etc. ( P.135)
AC charging cable
The function, correct oper-
ating procedure, etc., of the
AC charging cable are
explained.
WARNING
■When using the AC charging
cable and CCID (Charging
Circuit Interrupting Device)
Observe the following precau-
tions.
Failure to do so may cause an
unexpected accident, resulting in
death or serious injury.
●Do not attempt to disassemble
or repair the AC charging cable,
charging connector, plug or
CCID (Charging Circuit Inter-
rupting Device). If a problem
arises with the AC charging
cable or the CCID (Charging
Circuit Interruptin g Device), stop
charging immediately and con-
tact your Toyota dealer.
●Do not subject the AC charging
cable, charging connector, plug
or CCID (Charging Circuit Inter-
rupting Device) to strong force
or impact.
●Do not apply excessive force to
the AC charging cable by force-
fully folding, twisting, pulling or
dragging the AC charging cable.
●Do not damage the AC charging
cable with sharp objects.
●Do not fold the charging con-
nector or plug or insert foreign
objects into them.
●Do not put the charging connec-
tor and plug into water.

982-2. Charging
Owners Manual_USA_M42C01_en
■AC charging (P.105)
This is a charging method used
when charging from an AC out-
let with the AC charging cable or
charging that uses AC charger.
By setting charging schedule, it is
also possible to charge at the
desired date and time. ( P. 1 1 8 )
■DC charging ( P.113)
This is a charging method that
uses a DC charger that com-
plies with SAE J 1772. The trac-
tion battery can be charged in a
shorter time than AC charging.
SAE is an abbreviation for an
industrial standard issued by the
Society of Automotive Engi-
neers.
This vehicle is equipped with
several functions that are linked
with charging.
■My Room Mode ( P.129)
When the charging cable is con-
nected to the vehicle, electrical
components such as the air con-
ditioning system and audio sys-
WARNING
●Do not connect to a power strip.
●Use of a block heater for
charging is prohibited.
●Make sure to connect the
charging connector and AC
charging inlet directly. Do not
connect a converting adaptor or
extension cord between the
charging connector and AC
charging inlet.
Charging methods
The following methods can
be used to charge the trac-
tion battery.
Types of charging meth-
ods
Charging-linked functions

992-2. Charging
Owners Manual_USA_M42C01_en
2
Electric Vehicle system
tem can be used by the power
supply from an external power
source
*.
*: Depending on the situation, elec-
tricity of the traction battery may
be consumed.
■Traction battery heater
When the outside temperature
is low and the charging cable is
connected to the vehicle, this
function automatically warms
the traction battery until it
reaches or exceeds a certain
temperature.
 The operation of this function
is stopped automatically when
the charging cable is discon-
nected or if the charging cable
is left connected to the vehicle
for approximately 3 days.
 When the charging schedule
is used ( P.118), this func-
tion will operate according to
the schedule settings.
■Traction battery warming
control
This control operates after the
charging cable remains con-
nected to the vehicle for approx-
imately 3 days and the traction
battery heater automatically
stops. It automatically insulates
the traction battery in extremely
low temperatures.
 This control stops 31 days
after the charging cable is
connected, even if it is still
connected to the vehicle. 
When this control operates,
charging schedule settings
are ignored and charging
starts immediately.
■Traction battery cooler
When the traction battery is hot
and the AC charging cable is
connected to the vehicle, this
function cools the traction bat-
tery to protect it.
The function may operate when
continuously driving at high
speeds such as driving on high-
ways or freeways, or during DC
charging.
■Using My Room Mode during
DC charging
 P.130
■Traction battery heater
●Traction battery heater may oper-
ate when charging is not being
performed.
●When Traction battery heater is
operating, the charging indicator
will illuminate.
●When Traction battery heater is
operating during charging, the
charging may take longer than
normal.
●The remaining charge of the trac-
tion battery declines when the
traction battery hea ter operates, it
might be necessary to recharge
the traction battery again in order
to supplement the remaining
charge.
■Traction battery cooler
●For AC charging: Traction battery
cooler settings can be changed on
the multi-information display.
(  P.100)
●The AC charging indicator will illu-

1002-2. Charging
Owners Manual_USA_M42C01_enminate when the tr
action battery
cooler is on standby or operating.
●When the charge level of the trac-
tion battery is low, the traction bat-
tery cooler may n ot operate, even
if the temperature of the traction
battery is high.
●When the following conditions are
met while the trac tion battery
cooler is operating, the cooling
operation will stop.
• The hood is opened
• The power switch is turned to ACC or ON.
• The shift position is changed to any position other than P
• The Remote Air Conditioning Sys- tem is operated ( P.409)
• The remaining charge of the trac-
tion battery drops below a certain
amount
●The traction battery cooler oper-
ates using power s upplied by the
traction battery and an external
power source.
• While the traction battery cooler is
operating, the charge of the trac-
tion battery will increase and
decrease within a certain range,
and will not increase as during AC
charging.
• When the traction battery cooler operates, charger will recognize it
as the battery being charged. If
this function ope rates while a
charger which charges a charging
fee is connected to the vehicle,
AC charging fees will apply.
■Changing of the traction battery
cooler setting
Setting can be changed on the
multi-information display.
Use the meter control switches
(  P.156) and select “Vehicle Set-
tings”, “Charging Se ttings”, “Battery
Cooler”, and change the setting.
When selecting to off, the traction
battery output may be restricted
depending on the driving situation.
To enable the use of battery
electric vehicle, we recommend
systematically charging the
vehicle.
■Before leaving home
In order to use the battery elec-
tric vehicle, charge the traction
battery at home before leaving.
■On the way to the destina-
tion or at the destination
When the remaining charge of
the traction battery gets low,
recharge the battery at the near-
est charging station.
Charging tips
This section explains meth-
ods for using the charging
function for this vehicle and
checking information
related to charging.
Systematically charging

1012-2. Charging
Owners Manual_USA_M42C01_en
2
Electric Vehicle system
Information related to charging
is displayed and can be checked
on the multi-information display.
■While charging
When any door is opened during
charging with the power switch
off, the current charging condi-
tion and approximate time
remaining until charging is com-
plete are displayed for a certain
period of time.
The actual charging time may
differ depending on conditions
such as the remaining capacity
of the traction battery, outside
temperature, and specifications
of the AC/DC charger.
The time until charging com-
pleted may not be displayed if
the charging current to the trac-
tion battery becomes smaller
and the charging time becomes
longer.
■After charging is complete
When any door is opened with
the power switch off after
charging is complete, a mes-
sage detailing the results of the
charging is displayed for a while.
Also, a message is displayed if
an operation that stops charging
is performed or a situation
where charging cannot be per-
formed occurs.
When a message is displayed,
follow the instructions displayed
on the screen. ( P.140)Checking information
related to charging

1032-2. Charging
Owners Manual_USA_M42C01_en
2
Electric Vehicle system
Before charging, always check
the following items.
 The parking brake is applied.
( P.243)
 The power switch is turned to
OFF. ( P.231)
 Lights such as the headlights,
emergency flashers and inte-
rior lights, etc. are turned off.
If these light switches are turned
on, then these features will con-
sume electricity, and charging time
will increase.
Before charging, make sure that
each part of the AC charging
cable is in good condition.
( P.92)
■During charging
●The charging starting time may
differ depending on the state of
the vehicle, but this does not indi-
cate a malfunction.
●During charging, sounds may be
heard from near the traction bat-
tery in accordance with the opera-
tion of the air conditioning system
or “Battery Cooler” ( P.99).
●During and after charging, the motor compartment and its sur-
rounding area in which the
onboard traction battery charger is
installed may get warm.
●The surface of the CCID
(Charging Circuit Interrupting
Device) may become hot, but this
does not indicate a malfunction.
●Depending on radio wave condi-
tions, interference may be heard
on the radio.
■When charging using a public
charging facility
●When charging using a public
charging facility, check the setting
of the charging schedule function.
• When the charging schedule is registered, temporarily turn off the
function or turn “ Charge Now” on.
(  P. 1 1 9 )
• When the charging schedule is set to on, charging will not start even
if the AC charging cable is con-
nected. Also, charging fee may
occur due to connection of the AC
charging cable.
■Capacity reduction of the trac-
tion battery
The capacity of the traction battery
will decline gradually when the trac-
tion battery is in use. The rate at
which it declines will differ in accor-
dance with environmental conditions
and the way in which the vehicle is
used. Observing the following can
help suppress the decline in the
traction battery capacity.
●Avoid parking the vehicle in high
temperature areas, under direct
sunlight when the traction battery
is fully charged.
●Avoid accelerating and decelerat-
ing frequently and suddenly.
●Avoid frequent d riving at high
speed.
●Use the charging schedule func-
tion as much as possible in order
to fully charged the traction bat-
tery before starting off. ( P. 1 1 8 )
NOTICE
●When charging with a charger,
follow the procedures for using
each charger.
Confirm the following
before charging
Inspecting the AC
charging cable

1042-2. Charging
Owners Manual_USA_M42C01_en
●Avoid frequent DC charging
Also, if the capacit y of the traction
battery capacity reduces, the dis-
tance that can be driven decreases.
However, vehicle performance does
not significantly become worse.
■When the remaining charge of
the traction battery is low after
charging
In the following situations, the
remaining charge of the traction bat-
tery after charging completes may
be less than normal in order to pro-
tect the traction bat tery (the driving
range after the battery is fully
charged may be shorter).
*
●Charging is perf ormed when the
outside temperature is low or high
●Charging is perf ormed immedi-
ately after high-l oad driving or in
extreme heat
In any other situati on, if the remain-
ing charge of the traction battery is
significantly lower than normal after
charging completes, have the vehi-
cle inspected by your Toyota dealer.
*: When this occurs, even if the remaining charge display of the
traction battery shows that it is
fully charged, the remaining
charge rapidly decreases faster
than normal.
■When the charging amount sent
to the traction battery
decreases
When the amount of power supplied
by the charger is low or operation of
the battery heater, etc., reduces the
charging power sent to the traction
battery, the charging amount sent to
the traction battery may decrease.
■Certification
This device complies with Part 15 of
the FCC Rules. Operation is subject
to the following two conditions:
(1) this device may not cause harm- ful interference, and (2) this device
must accept any interference
received, including interference that
may cause undesired operation.
■Charging time may increase
In the following situ ations, charging
time may become longer than nor-
mal:
●In very hot or very cold tempera-
tures.
●When the traction battery
becomes hot, such as immedi-
ately after high-load driving.
●The vehicle is consuming a lot of
electricity, for e xample, when the
headlights are on, etc.
●When using “My Room Mode”.
(  P.129)
●There is a power outage during
charging.
●There is an interruption in the
electrical supply.
●There is a drop in the voltage of
external power source.
●The charge in the 12-volt battery
is low, for example due to the
vehicle being left unused for a
long period of time.
●When the upper limit of charging
current is changed in the charging
current setting of the vehicle
( P.108)
●When the battery heater operates.
( P. 9 9 )
●When the “Battery Cooler” is oper-
ated before charging. ( P. 9 9 )
●When the plug generates heat
due to a loose outlet connection,
etc.
●When adjusting the power supply
with the charger.
●When frequently and repeatedly
using DC charging.
●When selecting “DC charging
power” setting other than “MAX”.
●When the temperature of
charging-related parts is high.