762-1. Electric vehicle system
Owners Manual_USA_M42C01_enThe illustration is an example fo
r explanation and may differ from the actual
item.
Warning label
High voltage cables (orange)
ESU: Electricity Supply Unit (built in onboard traction battery
charger/DC-DC converter)
Service plug
AC charging inlet
Electric Vehicle system precautions
Be careful of the high voltage components (nominal voltage
at 355.2 V), such as the traction battery, electricity supply
unit, orange colored high voltage cables, and electric motor,
as well as high temperature components such as the cooling
radiator, which are provided on the battery electric vehicle.
For the high voltage components, warning labels are pro-
vided on them. Read them when they need to be handled.
System components
772-1. Electric vehicle system
Owners Manual_USA_M42C01_en
2
Electric Vehicle system
DC charging inlet
Traction battery
Electric motor (traction motor)/Inverter (front/rear
*)
Air conditioning compressor
*: AWD models only
■Electromagnetic waves
●High-voltage parts and cables on
the battery electric vehicles incor-
porate electro-magnetic shield-
ing, and the refore emit
approximately the same amount
of electromagnetic waves as con-
ventional gasoli ne-powered vehi-
cles or home electronic
appliances.
●Your vehicle may cause sound
interference in so me third party-
produced radio parts.
■Traction battery (Lithium-ion
battery)
The traction batte ry has a limited
service life.
The traction battery capacity (the
ability to store ene rgy) reduces with
time and use in the same way as
other rechargeable batteries. The
extent at which capacity reduces
changes drastically depending on
the environment (outside tempera-
ture, etc.) and us age conditions,
such as how the vehicle is driven
and how the traction battery is
charged.
This is a natural characteristic of
lithium-ion batteries, and is not a
malfunction. Also, even though the
driving range decreases when the
traction battery capacity reduces,
vehicle performance does not sig-
nificantly become worse. In order to
reduce the possibility of the capacity
reducing, follow the directions listed
on P.103, “Capacity reduction of the
traction battery”.
■Starting the EV system in an
extremely cold environment
When the traction battery is
extremely cold (below approxi-
mately -22°F [-30°C]) due to the
temperature outside of the vehicle, it
may not be possible to start the EV
system. In this case, try to start the
EV system again after the tempera-
ture of the traction battery increases
due to the outside temperature
increasing, etc.
WARNING
■High-voltage precautions
The vehicle has high voltage DC
and AC systems as well as a 12-
volt system.
DC and AC high voltage systems
are very dangerous and can
cause severe burns and electric
shock that may result in death or
serious injury.
●Never touch, disassemble,
remove, or replace the high volt-
age parts, cables (orange) or
their connectors.
●The EV system will become hot
after starting as the system
uses high voltage. Be careful of
both the high voltage and the
high temperature, and always
obey the warning labels
attached to the vehicle.
802-1. Electric vehicle system
Owners Manual_USA_M42C01_en
When a certain level of impact is
detected by the impact sensors,
the emergency shut off system turns off the EV system and
blocks the high voltage current.
If the emergency shut off system
activates, your vehicle will not
restart. To restart the EV sys-
tem, contact your Toyota dealer.
A message is automatically dis-
played when a malfunction
occurs in the EV system or an
improper operation is attempted.
If a warning message is shown
on the multi-information display,
read the message and follow the
instructions. (
P.140, 522)
■If a warning light comes on, a
warning message is displayed,
or the 12-volt battery is discon-
nected
The EV system may not start.
In that case, try to start the system
again. If the “READY” indicator does
not come on, contact your Toyota
dealer.
■When the traction battery is
completely discharged
When the EV system cannot be
started due to the traction battery
being completely discharged, restart
the system after AC charging or DC
charging. When charging, it is rec-
WARNING
■Caution while driving
●Pay special attention to the area
around the vehicle. Because
there is no engine noise, pedes-
trians, people riding bicycles or
other people and vehicles in the
area may not be aware of the
vehicle starting off or approach-
ing them, so take extra care
while driving. Therefore, take
extra care while driving even if
the Acoustic Vehicle Alerting
System is active.
●If the vehicle under floor area
receives strong shock or impact
while driving, stop the vehicle in
a safe place and check around
the bottom of the vehicle. If
there is damage to the traction
battery or liquid leakage, it may
lead to a vehicle fire, etc. Do not
touch the vehicle and immedi-
ately contact your Toyota dealer.
Even if no damage can be seen
under the floor, the traction bat-
tery may be damaged. If the
vehicle received an impact
under the floor, have the traction
battery inspected at a Toyota
dealer.
■Modifications
Do not make modifications that
lower the height of the vehicle.
The traction battery in the under
floor area may come into contact
with the ground when the height
of vehicle is lowered. If the trac-
tion battery is damaged, a vehicle
fire may occur, possibly resulting
in death or serious injury.
Emergency shut off sys-
tem
Warning message
822-1. Electric vehicle system
Owners Manual_USA_M42C01_en
battery cannot be charged. Also,
when using the air conditioning
system, etc., the traction battery
electricity is consumed.
(P.237)
Repeated acceleration and
deceleration due to traffic con-
gestion, long waits at traffic
lights, and driving on steep
inclines will lead to poor electric-
ity consumption. In order to
avoid those situations as much
as possible, check traffic reports
before leaving. If the vehicle is
driven in traffic congestion, gen-
tly release the brake pedal to
allow the vehicle to move for-
ward slightly, avoid overuse of
the accelerator pedal. Doing so
can help minimize unnecessary
electricity consumption.
Make sure to operate the brakes
gently and a timely manner. A
greater amount of electrical
energy can be regenerated
when slowing down.
Control and maintain the vehicle
at a constant speed. Before
stopping at a toll booth or simi-
lar, allow plenty of time to release the accelerator and gen-
tly apply the brakes. A greater
amount of electrical energy can
be regenerated when slowing
down.
Use the air conditioning only
when necessary. Doing so
can help reduce excessive
electricity consumption.
In summer: When the ambient tem-
perature is high, use the recircu-
lated air mode. Doing so will help to
reduce the burden on the air condi-
tioning system and reduce electric-
ity consumption as well.
In winter: Exce ssive or unneces-
sary heating should be avoided.
Also, electricity consumption can
be improved by avoiding overuse of
the heater.
When using the Remote Air
Conditioning System
( P.409) while the AC
charging cable is connected
to the vehicle, electricity con-
sumption immediately after
starting off will be reduced
because air conditioning is
operated mainly using elec-
tricity from an external power
source.
Make sure to check the tire infla-
tion pressure frequently.
Delays
When braking
Highway (or freeways)
driving
Air conditioning
Checking tire inflation
pressure
842-1. Electric vehicle system
Owners Manual_USA_M42C01_en
number of occupants.
Possible driving distance could
be extended if the followings are
performed:
Maintain a safe distance from
the vehicle in front and avoid
unnecessary acceleration and
deceleration
Accelerate and decelerate the
vehicle as smoothly as possi-
ble
Drive at moderate speeds as
much as possible and main-
tain a constant speed
Set the air conditioning sys-
tem to a moderate tempera-
ture and avoid using the
heating and cooling functions
excessively.
Use tires of the specified size
and maintain the specified tire
pressure
Do not add unnecessary
weight to the vehicle
The followings indicate that
charging has been carried out
properly.
The AC charging indicator
turns off
“Charging complete” is dis-
played on the multi-informa-
tion display when a door is
opened while the power switch is off. (
P.101)
Regardless of the type of power
source or whether the charging
schedule function is used,
charging is completed if the
above can be confirmed.
Charging-related messages:
P.140
Display when charging is
completed
852-2. Charging
Owners Manual_USA_M42C01_en
2
Electric Vehicle system
2-2.Charging
AC charging inlet
Charging indicator ( P.86) and Charging inlet light
DC charging inlet
Charging port lid ( P.85)
AC charging cable ( P. 8 7 )
Charging port
■Open
Slightly open the charging port
lid by pressing the rear edge of it
(the position shown in the illus-
tration)
Fully open the charging port lid by hand.
Charging equipment
Charging equipment and names
Opening/closing the
charging port lid
862-2. Charging
Owners Manual_USA_M42C01_en
■Close
Move the charging port lid to the
slightly open position and then
press the rear edge (the position
shown in the illustration) to close
it.
■Lid lifter
●The charging lid is not closed if
the lifter is pushing in before clos-
ing the charging lid. In that case,
while unlocking the door, push
again and release the lid lifter, and
close the charging lid again.
■Charging port lid open/close
detection switch
When the charging port lid is open,
do not touch the charging port lid
open/close detection switch (Posi-
tion shown in the figure).
If you touch it by mistake, the vehi-
cle may incorrectly display the
opened/closed status of the
charging port lid, or the charging
connector may not be able to
lock/unlock normally.
The illumination/flashing pattern
changes to inform the user of
the charging status in the follow-
ing ways.
Charging indicator
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.