Toyota Prius Prime (2021 year). Manual in english - part 2

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2-1. Plug-in hybrid system

Plug-in hybrid system features

The  illustration  is  an  example  for  explanation  and  may  differ  from  the
actual item.

Gasoline engine
Electric motor (traction motor)

The plug-in hybrid system is a system excellent in both econom-
ical efficiency of electric vehicles and practicality of hybrid vehi-
cles.

●

EV  driving  can  be  performed  using  electricity  charged  from  an
external power source.

*

●

If the amount of electricity remaining in the hybrid battery (traction
battery)  becomes  low,  the  vehicle  is  automatically  controlled  in
such a way that it can be driven as a hybrid vehicle through the
joint use of the gasoline engine.

*

: The  EV  driving  range  will  vary  in  accordance  with  conditions  such  as

vehicle  speed,  the  amount  of  charge  remaining  in  the  hybrid  battery
(traction battery) and the usage of the air conditioning system. The gaso-
line engine may also be used simultaneously in accordance with driving
conditions.

1
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2-1. Plug-in hybrid system

2

Plug-

in hybrid system

The plug-in hybrid system operates in the following modes.

The multi-information display can be used to check which mode the plug-in
hybrid system is currently being driven in. (



P. 220)

EV mode
When  a  sufficient  amount  of  electricity  is  remaining  after
charging

*

1

,  EV  driving  is  performed  using  electricity  stored  in  the

hybrid battery (traction battery).

*

2

When in EV mode, the EV drive mode indicator illuminates.

*

1

: The amount of remaining charge can be checked on the multi-informa-

tion display etc. (



P. 231)

*

2

: Depending on the situation, EV driving may be canceled and both gaso-

line engine and electric motor are used. (



P. 95)

Plug-in hybrid system operation mode

1

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2-1. Plug-in hybrid system

EV auto mode (



P. 90)

When a sufficient amount of electricity for EV driving is remaining in
the  hybrid  battery  (traction  battery)  after  charging

*

,  the  operation

mode can be switched to EV auto mode.
Switching to EV auto mode make powerful driving possible by using
both  the  gasoline  engine  and  electric  motor  in  a  driving  condition
that requires large driving force, such as when passing a vehicle on
a highway or driving on a steep slope.

When in EV auto mode, the EV auto mode indicator illuminates.

*

: The amount of remaining charge can be checked on the multi-informa-

tion display etc. (



P. 231)

HV mode
When  in  HV  mode,  the  vehicle  is  driven  using  both  the  gasoline
engine and electric motor (traction motor). (



P. 92)

●

If electricity needed for EV driving in EV mode or EV auto mode
is  not  remaining,  the  operation  mode  will  be  automatically
switched to HV mode.

●

The operation mode can be switched to HV mode at any timing
by  operating  the  switch  to  keep  electricity  for  EV  driving  etc.

*

(



P. 90). Switching to HV mode when driving on a highway or

when driving uphill is recommended in order to conserve battery
power.

When in HV mode, the EV drive mode indicator and EV auto mode indi-
cator turn off.

*

: The EV driving range may reduce even after switching to HV mode.

2

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2-1. Plug-in hybrid system

2

Plug-

in hybrid system

Hybrid battery (traction battery) charge mode (



P. 91)

Electricity generated in the gasoline engine can be charged in the
hybrid  battery  (traction  battery)  by  switching  to  the  hybrid  battery
(traction battery) charge mode when electricity needed for EV driv-
ing is not remaining.

*

●

The system may not be able to switch to the hybrid battery (trac-
tion battery) charge mode due to the state of the plug-in hybrid
system. (



P. 91)

●

Charging time differs depending on the driving state of the vehi-
cle when driving in hybrid battery (traction battery) charge mode.

When  in  the  hybrid  battery  (traction  battery)  charge  mode,  the  hybrid
battery charge mode indicator illuminates.

*

: When  in  the  hybrid  battery  (traction  battery)  charge  mode,  the  hybrid

battery can be charged while driving. However, the gasoline engine runs
to charge the battery and fuel consumption becomes higher compared
with driving in HV mode.

4

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2-1. Plug-in hybrid system

The plug-in hybrid system operation modes can be switched using the
switches.

If there is not enough charge remaining in the hybrid battery (traction bat-
tery) to allow EV driving, EV/EV auto mode will not be selectable. 
The hybrid battery (traction battery) charge mode cannot be selected if the
hybrid battery (traction battery) is almost completely charged.

■

Switching the plug-in hybrid system operation modes

Press the EV/HV mode selection switch or EV auto mode switch to
change modes as the following table shows.

When in EV mode, the EV drive mode indicator illuminates.
When in EV auto mode, the EV auto mode indicator illuminates.
When in HV mode, the EV drive mode indicator and EV auto mode indi-
cator turn off.

*

: If there is not enough charge remaining in the hybrid battery (traction bat-

tery) to allow EV driving, EV/EV auto mode will not be selectable.

Plug-in hybrid system operation mode selection switches



EV/HV mode selection switch



EV auto mode switch

Current mode

Switch operated

EV mode

HV mode

EV auto mode

EV auto mode

HV mode

EV mode

HV mode

EV mode

*

EV auto mode

*

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2-1. Plug-in hybrid system

2

Plug-

in hybrid system

■

Switching to the hybrid battery (traction battery) charge mode

Press and hold the switch.

Take  your  hand  off  the  switch
once  the  hybrid  battery  charge
mode indicator starts to blink.
The hybrid battery charge mode
indicator  illuminates  when  the
switch to hybrid battery (traction
battery)  charge  mode  is  com-
plete.
When the hybrid battery (traction battery) is fully charged

*

, the hybrid

battery (traction battery) charge mode is automatically canceled and the
operation mode will be switched to HV mode.
The  hybrid  battery  (traction  battery)  charge  mode  will  be  canceled  by
pressing EV/HV mode selection switch or EV auto mode switch.

*

: The  maximum  charge  amount  in  the  hybrid  battery  (traction  battery)

charge mode is approximately 80% of the fully charged capacity for the
charging from an external power source.

■

If the plug-in hybrid system operation mode cannot be changed

In the following situations, the plug-in hybrid system operation mode cannot
be changed even if the EV/HV mode selection switch or EV auto mode switch
is pressed. (In this case, the warning message is displayed on the multi-infor-
mation display when the switch is pressed.)

●

When  electricity  needed  for  EV  driving  is  not  remaining  (when  in  EV/EV
auto mode)

●

When the traction battery is almost completely charged (hybrid battery [trac-
tion battery] charge mode)

■

When switching from EV mode to another mode using the switch

When the power switch is turned off, operation mode switching is canceled
and the system returns to EV mode the next time the vehicle is started.

■

Hybrid battery (traction battery) charge mode

●

The following may occur to protect the system, etc.
• Cannot switch to hybrid battery (traction battery) charge mode or cannot

cancel it

• Gasoline engine does not start or stops even after switching to hybrid bat-

tery (traction battery) charge mode

●

If a load to the system is large, such as when the power consumption of the
air conditioning system is large or when the temperature of the engine cool-
ant is high, it may take longer time than usual to charge using the hybrid bat-
tery  (traction  battery)  charge  mode,  or  charging  to  the  hybrid  battery
(traction battery) may not be performed.

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2-1. Plug-in hybrid system

■

When in EV/EV auto mode

In  EV/EV  auto  mode,  EV  driving  (driving  using  only  the  electric
motor)

*

 is possible. However, depending on the situation, EV driv-

ing may be canceled and both gasoline engine and electric motor
are  used  (



P.  95). Also,  if  a  little  electricity  is  remaining  in  the

hybrid battery (traction battery), HV mode is automatically selected.
To drive in EV/EV auto mode long, observe the followings.

●

Avoid sudden acceleration and sudden deceleration, and be sure
to drive smoothly.
If you repeatedly accelerate, the hybrid battery (traction battery)
charge will deplete quickly. Also, EV driving may be canceled by
rapid acceleration or vehicle speed.

●

Restrain your speed as much as possible. The distance that can
be driven in EV/EV auto mode will reduce considerably at high
speeds.

*

: The EV driving range can be checked  using the multi-information dis-

play etc. (



P. 214, 230, 237, 254)

■

When in HV mode

The  vehicle  can  be  used  in  the  same  way  as  a  standard  hybrid
vehicle.
In HV mode, controls are primarily carried out as follows in accor-
dance with the driving conditions.

●

The gasoline engine stops

*

 when the vehicle is stopped.

●

During start off, the electric motor (traction motor) drives the vehi-
cle.

●

During  normal  driving,  the  gasoline  engine  and  electric  motor
(traction  motor)  are  controlled  effectively,  and  the  vehicle  is
driven  with  optimum  fuel  efficiency. Also,  when  necessary,  the
electric motor (traction motor) operates as an electrical generator
to charge the hybrid battery (traction battery).

●

When  the  accelerator  pedal  is  depressed  heavily,  drive  force
from  both  the  gasoline  engine  and  the  electric  motor  (traction
motor) is used to accelerate.

*

: When  the  hybrid  battery  (traction  battery)  requires  charging  or  the

engine  is  warming  up,  etc.,  the  gasoline  engine  will  not  automatically
stop. (



P. 95)

Control when driving in each mode

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2-1. Plug-in hybrid system

2

Plug-

in hybrid system

■

When braking (regenerative braking)

The electric motor (traction motor) charges the hybrid battery (trac-
tion battery).
The EV driving range can be extended by actively using this regen-
erative braking to store electricity in the hybrid battery (traction bat-
tery).
Moreover, as fuel consumption is also reduced when in HV mode,
the regenerative braking system can be used effectively.

In  order  to  make  EV/EV  auto
mode available, charge the hybrid
battery  (traction  battery)  from  an
external  power  source  before
using the vehicle.

Even if charging the hybrid battery
(traction  battery)  has  not  been
completed,  the  vehicle  can  be
driven.  However,  if  there  is  not
enough charge remaining, it is pos-
sible  that  the  vehicle  cannot  be
driven  in  EV/EV  auto  mode  or  the
EV  driving  range  will  become
shorter.

When  driving  with  the  gasoline  engine  stopped,  a  sound,  which
changes in accordance with the driving speed, will be played in order
to warn people nearby of the vehicle’s approach. The sound will stop
when the vehicle speed exceeds approximately 22 mph (35 km/h).

Charging (



P. 110)

Vehicle proximity notification system

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2-1. Plug-in hybrid system

■

Regenerative braking

In the following situations, kinetic energy is converted to electric energy and
deceleration force can be obtained in conjunction with the recharging of the
hybrid battery (traction battery).

●

The accelerator pedal is released while driving with the shift position in D or
B.

●

The brake pedal is depressed while driving with the shift position in D or B.

■

EV driving range

●

The EV driving range is displayed on the multi-information display etc. 
(



P. 214, 230, 237, 254)

●

The EV driving range changes in accordance with the charge status of the
hybrid battery (traction battery), the speed of the vehicle, etc.

●

Even if there is enough charge remaining in the hybrid battery (traction bat-
tery),  EV  driving  may  be  canceled  and  both  gasoline  engine  and  electric
motor are used depending on the situation. (



P. 95)

■

After EV mode has switched to HV mode due to low hybrid battery (trac-
tion battery) charge

If the hybrid battery (traction battery) is regenerated by driving continuously
down a long slope, the EV driving range etc. will be displayed on the multi-
information display and EV mode will be automatically switched to.
If  EV  mode  is  not  switched  to  even  though  EV  driving  range  is  being  dis-
played, EV mode can be switched to by pressing the EV/HV mode selection
switch.

■

Refilling fuel

Plug-in hybrid vehicles can be driven using electricity charged from an exter-
nal power source. However, as the gasoline engine is used depending on the
situation even if in EV mode, and the gasoline engine is provided on board as
a power source for driving in HV mode, it is needed to refueling the vehicle.
Check  the  fuel  amount  and  refill  immediately  when  the  fuel  level  becomes
low. (



P. 371)

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2-1. Plug-in hybrid system

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Plug-

in hybrid system

■

Gasoline engine operation in EV/EV auto mode

Even if there is a sufficient amount of electricity remaining in the hybrid bat-
tery (traction battery) and EV driving range (



P. 214, 230, 237, 254) is being

displayed on the multi-information display etc., EV driving (driving using only
the  electric  motor)  may  be  canceled  and  both  gasoline  engine  and  electric
motor  are  used  depending  on  the  situation  (EV  driving  will  be  returned  to
automatically after EV driving becomes possible again). 
EV driving may be canceled automatically in the following circumstances:

●

When vehicle speed is more than approximately 84 mph (135 km/h).

●

When power is needed temporarily, for example when the accelerator pedal
is depressed firmly or when accelerating suddenly.

*

●

When the temperature of the hybrid system is high. 
The vehicle has been left in the sun, driven on a hill, driven at high speeds,
etc.

●

When the temperature of the hybrid system is low.

●

When  the  heater  is  switched  on  when  the  outside  temperature  is  below
about 14°F (-10°C).

●

When the windshield defogger switch is pressed. (



P. 515, 527)

●

When the system determines that the gasoline engine needs to be started.

The  gasoline  engine  may  also  operate  in  circumstances  other  than  those
listed above, depending on conditions.

*

: When traveling in the EV auto mode only

■

Conditions in which the gasoline engine may not stop

The gasoline engine starts and stops automatically. However, it may not stop
automatically in the following conditions

*

:

●

During gasoline engine warm-up

●

During hybrid battery (traction battery) charging

●

When the temperature of the hybrid battery (traction battery) is high or low

●

When the windshield defogger switch is pressed. (



P. 515, 527)

*

: Depending  on  the  circumstances,  the  gasoline  engine  may  also  not  stop

automatically in situations other than those above.

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2-1. Plug-in hybrid system

■

If the vehicle is not used for a long time

●

The 12-volt battery may discharge. In this event, charge the 12-volt battery. 
(



P. 607)

In  order  to  prevent  the  hybrid  battery  (traction  battery)  from  becoming
extremely  low  in  charge,  charge  the  hybrid  battery  (traction  battery)  from
external power source or start the hybrid system at least once every 2 or 3
months,  and  turn  the  power  switch  off  after  the  gasoline  engine  has
stopped automatically. (If the gasoline engine does not start up even after
approximately 10 seconds have passed since the “READY” indicator came
on, the power switch can be turned to off without any further action.)

●

When  the  vehicle  is  left  with  the  charging  cable  connected,  the  electricity
consumption amount of the 12-volt battery increases due to controls, such
as the system checking, operating. When the charging cable is not needed,
immediately remove it from the vehicle.

■

Sounds and vibrations specific to a hybrid vehicle

There may be no engine sound or vibration even though the vehicle is able to
move with the “READY” indicator is illuminated. For safety, apply the parking
brake and make sure to shift the shift position to P when parked.
The  following  sounds  or  vibrations  may  occur  when  the  hybrid  system  is
operating and are not a malfunction.

●

Motor sounds may be heard from the engine compartment.

●

Sounds  may  be  heard  from  the  hybrid  battery  (traction  battery)  when  the
hybrid system starts or stops.

●

Relay operating sounds such as a snap or soft clank will be emitted from the
hybrid battery (traction battery), behind the rear seats, when the hybrid sys-
tem is started or stopped.

●

Sounds from the hybrid system may be heard when the back door is open.

●

Sounds  may  be  heard  from  the  transmission  when  the  gasoline  engine
starts or stops, when driving at low speeds, or during idling.

●

Engine sounds may be heard when accelerating sharply.

●

Sounds may be heard due to regenerative braking when the brake pedal is
depressed or as the accelerator pedal is released.

●

Vibration may be felt when the gasoline engine starts or stops.

●

Cooling fan sounds may be heard from the air intake vents. (



P. 99)

■

Vehicle proximity notification system

In the following cases, the vehicle proximity notification system may be diffi-
cult for surrounding people to hear.

●

In very noisy areas

●

In the wind or the rain

Also, as the vehicle proximity notification system is installed on the front of
the vehicle, it may be more difficult to hear from the rear of the vehicle com-
pared to the front.

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Plug-

in hybrid system

■

When  “Proximity  Notification  System  Malfunction  Visit Your  Dealer”  is
displayed on the multi-information display

The  vehicle  proximity  notification  system  may  be  malfunctioning.  Have  the
vehicle inspected by your Toyota dealer immediately.

■

Maintenance, repair, recycling, and disposal

Contact your Toyota dealer regarding maintenance, repair, recycling and dis-
posal. Do not dispose of the vehicle yourself.

WARNING

■

When using the hybrid battery (traction battery) charge mode

Observe  the  following  precautions  when  using  the  hybrid  battery  (traction
battery) charge mode while parking.
Failure to do so may lead to death or serious health hazard, as the gasoline
engine operates when in the hybrid battery (traction battery) charge mode.

●

Do not stop the vehicle near flammable materials.

●

Do not use the hybrid battery (traction battery) charge mode in a closed
area  where  ventilation  is  insufficient,  such  as  in  a  garage  or  area  with
snow buildup.

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2-1. Plug-in hybrid system

Plug-in hybrid system precautions

The  illustration  is  an  example  for  explanation  and  may  differ  from  the
actual item.

Take care when handling the hybrid system, as it contains a high
voltage  system  (about  600V  at  maximum)  as  well  as  parts  that
become  extremely  hot  when  the  hybrid  system  is  operating.
Obey the caution labels attached to the vehicle.

Caution label
Charging inlet
Service plug
Air conditioning compressor
Power  control  unit  and  DC/DC
converter

Electric motor (traction motor)
High voltage cables (orange)
Onboard traction battery char-
ger
Hybrid  battery  (traction  bat-
tery)

1
2
3
4
5

6
7
8

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2-1. Plug-in hybrid system

2

Plug-

in hybrid system

There are air intake vents on both
sides of the rear seatback for the
purpose of cooling the hybrid bat-
tery (traction battery). If the vents
are  blocked,  charging/discharg-
ing  of  the  hybrid  battery  (traction
battery) may become limited.

When a certain level of impact is detected by the impact sensor, the
emergency  shut  off  system  blocks  off  the  high  voltage  current  and
stops the fuel pump to minimize the risk of electrocution and fuel leak-
age. If the emergency shut off system activates, your vehicle will not
restart. To restart the hybrid system, contact your Toyota dealer.

A  message  is  automatically  displayed  when  a  malfunction  occurs  in
the hybrid 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.

Hybrid battery (traction battery) air vents

Emergency shut off system

Hybrid warning message

100

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2-1. Plug-in hybrid system

■

If a warning light comes on, a warning message is displayed or the 12-
volt battery is disconnected

The hybrid 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.

■

Running out of fuel

When the vehicle has run out of fuel and the hybrid system cannot be started,
refuel  the  vehicle  with  at  least  enough  gasoline  to  make  the  low  fuel  level
warning  light  (



P.  676)  go  off.  If  there  is  only  a  small  amount  of  fuel,  the

hybrid system may not be able to start. (The standard amount of fuel is about
2.0 gal. [7.5 L, 1.7 Imp.gal.], when the vehicle is on a level surface. This value
may vary when the vehicle is on a slope. Add extra fuel when the vehicle is
inclined.)

■

Electromagnetic waves

●

High  voltage  parts  and  cables  on  the  hybrid  vehicles  incorporate  electro-
magnetic shielding, and therefore emit approximately the same amount of
electromagnetic waves as conventional gasoline powered vehicles or home
electronic appliances.

●

Your  vehicle  may  cause  sound  interference  in  some  third  party-produced
radio parts.

■

Effect of magnetic forces

If objects that generate strong magnetic forces, such as large speakers, are
placed  inside  the  luggage  compartment  or  installed  nearby,  the  generated
magnetic forces may negatively affect the hybrid system.

■

Hybrid battery (traction battery) (lithium-ion battery)

The hybrid battery (traction battery) has a limited service life.
The  hybrid  battery  (traction  battery)  capacity  (the  ability  to  hold  a  charge)
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 (ambient temperature, etc.) and usage conditions, such as how
the vehicle is driven and how the hybrid battery (traction battery) is charged.
This is a natural characteristic of lithium-ion batteries, and is not a malfunc-
tion. Also, even though the distance that can be driven in EV mode decreases
when  the  hybrid  battery  (traction  battery)  capacity  reduces,  vehicle  perfor-
mance does not significantly become worse.
In order to reduce the possibility of the capacity reducing, follow the directions
listed on P. 143, “Capacity reduction of the hybrid battery (traction battery)”.

■

Starting the hybrid system in an extremely cold environment

When the hybrid battery (traction battery) is extremely cold (below approxi-
mately -22



F [-30



C]) under the influence of the outside temperature, it may

not be possible to start the hybrid system. In this case, try to start the hybrid
system again after the temperature of the hybrid battery increases due to the
outside temperature increase etc.

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2

Plug-

in hybrid system

WARNING

■

High voltage precautions

The vehicle has high voltage DC and AC systems as well as a 12-volt sys-
tem.  DC  and AC  high  voltage  is  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  voltage  parts,
cables or their connectors.

●

The hybrid 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 caution labels attached to the vehicle.

●

Never  try  to  open  the  service  plug
access  hole  located  in  the  luggage
compartment. The service plug is used
only when the vehicle is serviced and is
subject to high voltage.

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WARNING

■

Road accident cautions

Observe  the  following  precautions  to  reduce  the  risk  of  death  or  serious
injury:

●

Pull your vehicle off the road, apply the parking brake, shift the shift posi-
tion to P, and turn the hybrid system off.

●

Do not touch the high voltage parts, cables and connectors.

●

If  electric  wires  are  exposed  inside  or  outside  your  vehicle,  an  electric
shock may occur. Never touch exposed electric wires.

●

Do not touch the battery if liquid is leaking from or adhering to it.
If  electrolyte  (carbonic-based  organic  electrolyte)  from  the  hybrid battery
(traction battery) comes into contact with the eyes or skin, it could cause
blindness or skin wounds. In the unlikely event that it comes into contact
with the eyes or skin, wash it off immediately with a large amount of water,
and seek immediate medical attention.

●

If  electrolyte  is  leaking  from  the  hybrid  battery  (traction  battery),  do  not
approach the vehicle.
Even in the unlikely event that the hybrid battery (traction battery) is dam-
aged, the internal construction of the battery will prevent a large amount of
electrolyte  from  leaking  out.  However,  any  electrolyte  that  does  leak  out
will give off a vapor. This vapor is an irritant to skin and eyes and could
cause acute poisoning if inhaled.

●

Do not bring burning or high-temperature items close to the electrolyte.
The electrolyte may ignite and cause a fire.

●

If a fire occurs in the hybrid vehicle, leave the vehicle as soon as possible.
Never use a fire extinguisher that is not meant for electric fires. Using even
a small amount of water may be dangerous.

●

If  your  vehicle  needs  to  be  towed,  do  so  with  front  wheels  raised.  If  the
wheels connected to the electric motor (traction motor) are on the ground
when  towing,  the  motor  may  continue  to  generate  electricity.  This  may
cause a fire. (



P. 667)

●

Carefully inspect the ground under the vehicle. If you find that liquid has
leaked onto the ground, the fuel system may have been damaged. Leave
the vehicle as soon as possible.

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2-1. Plug-in hybrid system

2

Plug-

in hybrid system

WARNING

■

Hybrid battery (traction battery)

●

Your vehicle contains a sealed lithium-ion battery.

●

Never resell, hand over or modify the hybrid battery. To prevent accidents,
hybrid batteries that have been removed from a disposed vehicle are col-
lected through Toyota dealer. Do not dispose of the battery yourself.
Unless the battery is properly collected, the following may occur, resulting
in death or serious injury:
• The hybrid battery may be illegally disposed of or dumped, and it is haz-

ardous to the environment or someone may touch a high voltage part,
resulting in an electric shock.

• The hybrid battery is intended to be used exclusively with your hybrid

vehicle. If the hybrid battery is used outside of your vehicle or modified
in any way, accidents such as electric shock, heat generation,  smoke
generation, an explosion and electrolyte leakage may occur. 
When reselling or handing over your vehicle, the possibility of an acci-
dent  is  extremely  high  because  the  person  receiving  the  vehicle  may
not be aware of these dangers.

●

If  your  vehicle  is  disposed  of  without  the  hybrid  battery  having  been
removed, there is a danger of serious electric shock if high voltage parts,
cables  and  their  connectors  are  touched.  In  the  event  that  your  vehicle
must be disposed of, the hybrid battery must be disposed of by your Toy-
ota dealer or a qualified service shop. If the hybrid battery is not disposed
of properly, it may cause electric shock that can result in death or serious
injury.

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NOTICE

■

Hybrid battery (traction battery) air vents

●

Make sure not to block the air intake vent with anything, such as a seat
cover, plastic cover, or luggage. If the vents are blocked, the charging/dis-
charging of the hybrid battery (traction battery) may become limited.

●

When dust etc. has accumulated in the air intake vent, clean it with a vac-
uum cleaner to prevent the vent from clogging.

●

Do not wet or allow foreign substances to enter the air vents as this may
cause a short circuit and damage the hybrid battery (traction battery).

●

Do  not carry large amounts of  water such  as water  cooler  bottles in  the
vehicle. If water spills onto the hybrid battery (traction battery), the battery
may be damaged. Have the vehicle inspected by your Toyota dealer.

●

A filter is installed to the air intake vent. When the filter remains noticeably
dirty even after cleaning the air intake vent, filter cleaning or replacement
is recommended. When cleaning the filter, refer to P. 582.

■

Notice about fuel

●

For plug-in hybrid vehicles, fuel may remain in the tank for a long time and
undergo  changes  in  quality  depending  on  the  how  the  vehicle  is  used.
Refuel at least 5.3 gal. (20 L, 4.4 Imp.gal.) of fuel every 12 months (refuel
a total of at least 5.3 gal. [20 L, 4.4 Imp.gal.] over a 12-month period), as
this may affect components of the fuel system or the gasoline engine.

●

If the vehicle has not been refueled for a certain amount of time and it is
possible that the quality of the fuel remaining in the tank has changed, “No
new fuel has been added recently. Please refuel” is displayed on the multi-
information  display  when  the  power  switch  is  turned  to  ON  mode.  If  the
message is displayed, refuel the vehicle immediately.

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2

Plug-

in hybrid system

Plug-in hybrid vehicle driving tips

◆

Using EV mode and HV mode effectively

Primarily using EV mode when driving in cities and using HV mode
when driving on highways (or freeways) can help conserve fuel and
electricity. (



P. 90)

◆

Using Eco drive mode

When using Eco drive mode, the torque corresponding to the accel-
erator pedal depression amount can be generated more smoothly
than it is in normal conditions. In addition, the operation of the air
conditioning system (heating/cooling) will be minimized, improving
fuel and electricity economy. (



P. 430)

◆

Use of Hybrid System Indicator

Eco-friendly driving is possible by keeping the Hybrid System Indi-
cator within Eco area. (



P. 225)

◆

Shift position operation

Shift the shift position to D when stopped at a traffic light, or driving
in heavy traffic etc. Shift the shift position to P when parking. When
using the N, there is no positive effect on fuel consumption. In the
N,  the  gasoline  engine  operates  but  electricity  cannot  be  gener-
ated. Also, when using the air conditioning system, etc., the hybrid
battery (traction battery) power is consumed.

For economical and ecological driving, pay attention to the fol-
lowing points:

106

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◆

Accelerator pedal/brake pedal operation

●

Drive  your  vehicle  smoothly.  Avoid  abrupt  acceleration  and
deceleration.  Gradual  acceleration  and  deceleration  will  make
more effective use of the electric motor (traction motor) without
having to use gasoline engine power.

●

Avoid  repeated  acceleration.  Repeated  acceleration  consumes
hybrid battery (traction battery) power, resulting in poor fuel con-
sumption.  Battery  power  can  be  restored  by  driving  with  the
accelerator pedal slightly released.

◆

When braking

Make  sure  to  operate  the  brakes  gently  and  a  timely  manner. A
greater amount of electrical energy can be regenerated when slow-
ing down.

◆

Delays

Repeated  acceleration  and  deceleration,  as  well  as  long  waits  at
traffic  lights,  will  lead  to  high  fuel  and  electricity  consumption.
Check traffic reports before leaving and avoid delays as much as
possible.  When  driving  in  a  traffic  jam,  gently  release  the  brake
pedal  to  allow  the  vehicle  to  move  forward  slightly  while  avoiding
overuse of the accelerator pedal. Doing so can help control exces-
sive electricity and fuel consumption.

◆

Highway driving

●

Control  and  maintain  the  vehicle  at  a  constant  speed.  Before
stopping at a toll booth or similar, allow plenty of time to release
the accelerator and gently apply the brakes. A greater amount of
electrical energy can be regenerated when slowing down.

●

Electricity consumption will increase significantly when driving at
high speeds in EV mode. If there will be a long distance to the
next external charging point after leaving a freeway, it is recom-
mended to drive in HV mode while on the freeway and change to
EV mode after leaving the freeway.

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2

Plug-

in hybrid system

◆

Air conditioning

●

Turn the “A/C” switch (

*

1

 • 

*

2

) off when it is

not needed. Doing so can help reduce excessive electricity and
fuel consumption.
In summer: When the ambient temperature is high, use the recir-
culated air mode. Doing so will help to reduce the burden on the
air conditioning system and reduce electricity and fuel consump-
tion as well.
In  winter: Avoid  excessive  and  unnecessary  use  of  the  heater.
Usage of the heated steering wheel (if equipped) and seat heat-
ers is effective. (



P. 539) 

●

Using the Remote Air Conditioning System (



P. 535) while the

charging cable is connected to the vehicle can reduce electricity
consumption immediately after starting off by operating air condi-
tioning mainly using electricity from an external power source.

●

When setting the charging schedule, selecting the start time set-
ting mode and setting “Climate Prep” to “On” can reduce electric-
ity  consumption  immediately  after  starting  off  by  operating  air
conditioning before charging is completed. (



P. 157)

*

1

: Vehicles with 7-inch display

*

2

: Vehicles with 11.6-inch display

◆

Checking tire inflation pressure

Make sure to check the tire inflation pressure frequently. If there is
improper tire inflation pressure in the tires, the EV driving range will
become  shorter,  and  fuel  consumption  when  in  HV  mode  will
increase.
Also, as snow tires can cause large amounts of friction, their use on
dry roads can lead to increased fuel and electricity consumption.

◆

Luggage

Carrying heavy luggage will lead to poor fuel economy. Avoid carry-
ing unnecessary luggage. Installing a large roof rack will also cause
poor fuel economy.

◆

Warming up before driving

Since  the  gasoline  engine  starts  up  and  cuts  out  automatically,
warming up is not necessary.

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EV driving range

The  value  displayed  on  the  multi-information  display  etc.  (



P.  214,

230, 237, 254) is estimated from the following information.

●

The  amount  of  hybrid  battery  (traction  battery)  charge  currently
remaining

●

The  electricity  consumption  (the  estimated  distance  that  can  be
driven  in  EV  mode  per  unit  of  electrical  energy)  based  on  the
recorded value

●

Past air conditioning system electricity consumption amount

The  electricity  consumption  varies  depending  on  how  the  vehicle  is
driven. The vehicle automatically records the electricity consumption
when being charged and uses the electricity consumption for estimat-
ing the  EV driving range. Therefore, the EV  driving range displayed
when  the  hybrid  battery  (traction  battery)  is  fully  charged  may  differ
from the previous EV driving range depending on how the vehicle was
driven.
The  EV  driving  range  may  change  significantly  with  each  charging
until the electricity consumption based on the recorded value is stable
(for approximately the first month or two). However, this does not indi-
cate a malfunction.
When the air conditioning system is turned on, the EV driving range
(with using the air conditioning system) is estimated based on the past
air  conditioning  electricity  consumption  amount  considering  that  the
electricity consumption may become higher.

The EV driving range displayed on the multi-information display
etc. shows the reference distance that EV driving (driving using
only the electric motor) is possible, and the actual distance that
can be driven may differ from that displayed.

Even if the EV driving range is displayed, EV driving may be can-
celed and both gasoline engine and electric motor are used depend-
ing on the situation. (



P. 95)

Displayed value

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2

Plug-

in hybrid system

The  distance  that  can  be  driven  in  EV  mode  varies  significantly
depending on how the vehicle is driven, road conditions, the weather,
the  outside  temperature,  usage  conditions  of  electrical  components
and the number of occupants.
The distance that can be driven in EV mode can be extended if the fol-
lowing is performed:

●

Maintain a safe distance from the vehicle in front and avoid unnec-
essary acceleration and deceleration

●

Accelerate and decelerate the vehicle as smoothly as possible

●

Drive at moderate speeds as much as possible and maintain a con-
stant speed

●

Set the air conditioning to a moderate temperature and turn the “A/C”

switch (

*

1

 • 

*

2

) off when it is not needed

●

Use tires of the specified size and maintain the specified tire pres-
sure

●

Use the EV/HV mode selection switch to drive in HV mode when
driving on a highway
Electricity consumption will increase substantially when driving on a
highway in EV mode.

●

Do not add unnecessary weight to the vehicle

*

1

: Vehicles with 7-inch display

*

2

: Vehicles with 11.6-inch display

The following indicate that charging has been carried out properly.

●

The charging indicator turns off

●

The Hybrid battery (traction battery) status indicators illuminate for
approximately 15 seconds. (



P. 112)

●

“Charging  Complete”  is  displayed  on  the  multi-information  display
when starting off (



P. 140)

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. 185

Tips for extending the EV driving range

Display when charging is completed

110

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

Charging equipment

*

: If equipped

This  vehicle  features  equipment  for  connecting  to  an  external
power source.

Charging equipment and names

Charging inlet
Charging inlet light
Charging port lid 
(



P. 111, 122)

Charging indicator (



P. 114)

Charging 

connector 

lock

switch

*

 (



P. 125)

Hybrid  battery  (traction  bat-
tery) status indicator (



P. 112)

Charging cable (



P. 115)

Charging port

1
2
3

4
5

6

7
8

PRIUS PRIME_OM_OM47D71U_(U)

111

2-2. Charging

2

Plug-

in hybrid system

■

Opening the charging port lid

Vehicles  without  smart  lid  &
connector locking system:
Press  the  rear  edge  of  the
charging  port  lid  (the  position
shown in the illustration).

Push  and  take  your  hand  away
to slightly open the charging port
lid.  Then  open  the  lid  fully  by
hand.

Vehicles  with  smart  lid  &  con-
nector locking system: 
Press  the  rear  edge  of  the
charging  port  lid  (the  position
shown  in  the  illustration)  with
the doors unlocked.

Push  and  take  your  hand  away
to slightly open the charging port
lid.  Then  open  the  lid  fully  by
hand.
While the doors are locked, only the charging port lid can be unlocked
by carrying an electronic key and pressing the charging port lid. 
(



P. 122)

Opening and closing the charging port lid

112

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2-2. Charging

■

Closing the charging port lid

Close the charging port lid and
press  the  rear  edge  of  the
charging  port  lid  (the  position
shown in the illustration).

Vehicles  with  smart  lid  &  con-
nector locking system:

• When  the  doors  are  locked

with  the  smart  key  system,
wireless  remote  control  or
door lock switch, the charging
port lid is also locked. 
(



P. 281, 283)

• If  the  charging  port  lid  is

closed with the doors locked,
the charging port lid locks.

When  the  charging  cable  is  con-
nected  to  the  charging  inlet,  the
user  is  informed  of  the  charging
status  of  the  hybrid  battery  (trac-
tion  battery)  by  the  statuses  of  3
indicators  (turned  off,  illuminated
or flashing).

■

During charging

Hybrid battery (traction battery) status indicator

Charging status of the 

hybrid battery 

(traction battery)

Hybrid battery (traction battery) status indicator

About less than half

Flashes

Not illuminated Not illuminated

About more than half

Illuminated

Flashes

Not illuminated

Full

Illuminated

Illuminated

Flashes

1

2

3

PRIUS PRIME_OM_OM47D71U_(U)

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2-2. Charging

2

Plug-

in hybrid system

■

Except during charging

The  hybrid  battery  (traction  battery)  status  indicators  illuminate

*

1

while the charging port lid is open and any of the followings are per-
formed.

●

When an electronic key is carried near the effective range

*

2, 3

 

(



P. 293)

●

When the doors are unlocked

*

1

: The indicators illuminate for a maximum of approximately 15 seconds.

*

2

: Excluding the effective range of the charging port lid.

*

3

: Vehicles with smart lid & connector locking system only

■

When the hybrid battery (traction battery) is fully charged

When the charging cable is connected, all 3 hybrid battery (traction battery)
status indicators illuminate to inform the user that the hybrid battery (traction
battery) is fully charged.

*

*

: If the push lifter (



P. 152) is pushed in, the hybrid battery (traction battery)

status indicators may flash.

Charging status of the 

hybrid battery 

(traction battery)

Hybrid battery (traction battery) status indicator

About less than half

Illuminated

Not illuminated Not illuminated

About more than half

Illuminated

Illuminated

Not illuminated

Full

Illuminated

Illuminated

Illuminated

1

2

3

114

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

The  illumination/flashing  pattern
changes to inform the user of the
charging  status  in  the  following
ways.

*

: Turns off after flashing for a certain period of time.

■

Charging indicator

When a system malfunction occurs while charging or using the Remote Air
Conditioning  System,  the  charging  indicator  rapidly  flashes  for  a  certain
period of time, and then turns off.
If this occurs, the next time the hybrid system is started, a message is dis-
played on the multi-information display. When a message is displayed, follow
the instructions displayed on the screen.

Charging indicator

Illumination/flashing 

pattern

Vehicle condition

Illuminated

• Charging is in progress
• Charging is possible
• “Traction Battery Heater” (



P. 135) is operating

• “Traction Battery Cooler” (



P. 136) is operating

Flashing 
(normally)

*

When charge schedule is registered (



P. 157) and

charging cable is connected to vehicle

Rapidly flashing

*

When  charging  cannot  be  carried  out  due  to  mal-
function in a power source or the vehicle etc. 
(



P. 182)

Not illuminated

• Charging  connector  is  not  inserted  into  charging

inlet

• When  the  charging  schedule  (



P.  157)  is  on

standby

• When charging is completed

115

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2-2. Charging

2

Plug-

in hybrid system

Charging cable

The  function,  correct  operating,  etc.  of  the  charging  cable  are
written.

The names of each part of the charging cable

Charging connector
Latch release button
Plug
Plug-cord
CCID  (Charging  Circuit  Inter-
rupting Device)

Power indicator (



P. 117)

Charging indicator (



P. 117)

Error warning indicator 
(



P. 117)

1
2
3
4
5

6
7
8

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2-2. Charging

The  CCID  (Charging  Circuit  Interrupting  Device)  has  the  following
safety features.

■

Electrical leakage detection function

If  an  electrical  leakage  is  detected  during  charging,  the  power
source  will  be  automatically  interrupted,  thus  preventing  fires  or
electrical shocks caused by electrical leakage.

If the power source is interrupted, the error warning indicator flashes.
If the power source is interrupted: 



P. 118

■

Automatic check function

This  is  an  automatic  system  check  that  is  run  before  charging
begins to check for problems in the operation of the electrical leak-
age detection function.

If a malfunction is found in the electrical leakage detection function as a
result  of  the  check,  the  error  warning  indicator  flashes  to  inform  the
user. (



P. 118)

■

Temperature detection function

A  temperature  detection  function  is  equipped  to  the  plug.  While
charging, if heat is generated due to looseness on the outlet side
etc., this function suppresses heat by controlling the charging cur-
rent.

■

Conditions for supplying current to the vehicle

The CCID (Charging Circuit Interrupting Device) is designed to pre-
vent electrical current from being supplied to the charging connec-
tor  when  it  is  not  connected  to  the  vehicle,  even  if  the  plug  is
inserted into the outlet.

Safety functions

PRIUS PRIME_OM_OM47D71U_(U)

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2-2. Charging

2

Plug-

in hybrid system

■

Indicator operation

3 indicators are used to indicate the following conditions.

Power indicator

Illuminates  when  electricity  is
flowing  to  the  CCID  (Charging
Circuit Interrupting Device).

Charging indicator

Illuminates  when  charging  is  in
progress.

Error warning indicator

Flashes when there is an electri-
cal leakage or when a malfunc-
tion  occurs  in  the  CCID
(Charging  Circuit  Interrupting
Device).

CCID (Charging Circuit Interrupting Device) indicators

1

2

3

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PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

■

When a malfunction occurs during charging

The indicators on the CCID (Charging Circuit Interrupting Device)
use a combination of different statuses (not illuminated, illuminated
or flashing) to inform the user of internal malfunctions.

When the error warning indicator is illuminated or flashing, temporarily
remove  the  plug  from  the  outlet  and  then  reconnect  it  to  check  if  the
error indicator turns off.
If the error warning indicator turns off, charging is now possible.
If it does not turn off, perform the correction procedure in the following
chart.

*

1

: When this occurs, charging is carried out without a limited charging current.

*

2

: When this occurs, charging is carried out with a limited charging current.

Status

Power 

indicator

Error 

warning 

indicator

Cause/Correction procedure

Charging 

system error

Not 

illuminated

Not 

illuminated 

or 

illuminated

An 

electrical 

leakage 

is

detected  and  charging  is  can-
celed, or there is a malfunction
in the charging cable.



Consult your Toyota dealer

Illuminated

Flashes

Plug 

temperature 

detection 

malfunction

Flashes

Flashes

There  is  a  malfunction  in  the
plug  temperature  detection
part.

*

1



Consult your Toyota dealer

Plug 

temperature 

increase 

detection

Flashes

Not 

illuminated

An increase in the temperature
of the plug is detected due to an
improper  connection  between
the outlet and plug.

*

2



Check  that  the  plug  is
securely  connected  to  the
outlet.

Charging 

cable life 

span notice

Illuminated

Flashes

The  number  of  charges  using
the  charging  cable  is  nearing
the end of its usable life span.



Consult your Toyota dealer

Charging 

cable life 

span

Illuminated

Illuminated

The  number  of  charges  using
the 

charging 

cable 

has

exceeded  its  usable  number  of
charges.



Consult your Toyota dealer

PRIUS PRIME_OM_OM47D71U_(U)

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2-2. Charging

2

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in hybrid system

WARNING

■

When using the charging cable and CCID (Charging Circuit Interrupt-
ing Device)

Observe the following precautions.
Failure to do so may cause an unexpected accident, resulting in death or
serious injury.

●

Do not attempt to disassemble or repair the charging cable, charging con-
nector, plug or CCID (Charging Circuit Interrupting Device).
If a problem arises with the charging cable or the CCID (Charging Circuit
Interrupting  Device), stop charging immediately and contact your Toyota
dealer.

●

Do  not  subject  the  charging  cable,  charging  connector,  plug  or  CCID
(Charging Circuit Interrupting Device) to strong force or impact.

●

Do  not  apply  excessive  force  to  the  charging  cable  by  forcefully  folding,
twisting, pulling or dragging the charging cable.

●

Do not damage the charging cable with sharp objects.

●

Do  not  fold  the  charging  connector  or  plug  or  insert  foreign  objects  into
them.

●

Do not put the charging connector and plug into water.

●

Do not bring the charging cable to a high-temperature item such as a heat-
ing device.

●

Do not apply a load to the charging cable and plug-cord (such as wrapping
the charging cable around the CCID (Charging Circuit Interrupting Device)
and the charging connector).

●

Do  not  use  or  leave  the  charging  cable  in  situations  where  a  load  is
applied to the outlet and the plug (such as when the CCID (Charging Cir-
cuit  Interrupting  Device)  is  hanging  in  the  air  without  contacting  the
ground).

NOTICE

■

When use the charging cable and related parts



P. 155

■

Precautions for low temperatures

In low temperatures, the charging cable and plug-cord may become hard.
Therefore, make sure to not apply excessive force when they are hard. If
excessive  force  is  applied  to  the  hardened  charging  cable  and  plug-cord,
they may be damaged.

120

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2-2. Charging

For safety, inspect the charging cable on a routine basis.

Inspecting and maintaining the charging cable

WARNING

■

Routine inspection

Check the following points regularly.
Failure to do so may cause an unexpected accident, resulting in death or
serious injury.

●

The  charging  cable,  plug,  charging  connector,  CCID  (Charging  Circuit
Interrupting Device) etc. have not been damaged

●

The outlet has not been damaged

●

The plug can be securely inserted into the outlet

●

The plug does not get extremely hot during use

●

The tip of the plug has not been deformed

●

The plug is not dirtied by dust etc.

Remove  the plug from  the outlet before  inspecting it. If  any abnormalities
are found in the charging cable as a result of the inspection, immediately
stop use and consult your Toyota dealer.

■

Maintaining the charging cable

When the charging cable is dirty, first remove the dirt with a hard, wringed
cloth, and then wipe the cable with a dry cloth. 
However,  never  wash  it  with  water.  If  the  charging  cable  is  washed  with
water, fire or electric shock may occur during charging, possibly resulting in
death or serious injury.

■

When not using the charging cable for a long time

Remove the plug from the outlet. Dust could accumulate on the plug or in
the outlet, possibly causing overheating which could lead to a fire.
Also, keep the cable in a place free from moisture.

121

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2-2. Charging

2

Plug-

in hybrid system

Smart lid & connector locking system



Smart lid system
Operating the charging port lid carrying the electronic key on your
person, for  example  in your  pocket, can unlock only  the charging
port lid with the doors of the vehicle locked.
Charging connector locking system
Operating  the  charging  connector  lock  switch  carrying  the  elec-
tronic key on your person, for example in your pocket, can lock and
unlock the charging connector.

It  can  be  used  to  prevent  the  charging  cable  removed  or  stolen  while
charging.

■

Antenna location



P. 292

■

Effective range (areas within which the electronic key is detected)



P. 293



: If equipped

When carrying the electronic key on your person, for example in
your pocket, only the charging port lid can be unlocked, and the
charging connector can be locked or unlocked with the doors of
the vehicle locked.

Smart lid & connector locking system operation

1

2

122

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2-2. Charging

■

Unlocking the charging port lid

Pressing  the  rear  edge  of  the
charging  port  lid  (the  position
shown  in  the  illustration)  carry-
ing  the  electronic  key  on  your
person,  for  example  in  your
pocket, can unlock the charging
port lid.

Push  and  take  your  hand  away
to slightly open the charging port
lid.

■

Locking the charging port lid

Close  the  charging  port  lid
and  press  the  rear  edge  of
the  charging  port  lid  (the
position shown in the illustra-
tion).

Using the smart lid system

1

PRIUS PRIME_OM_OM47D71U_(U)

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2-2. Charging

2

Plug-

in hybrid system

Locking the doors using the smart key system or wireless remote
control. (



P. 281, 282)

The charging port lid will be locked.
If the charging port lid is closed with the doors locked, the charging port
lid locks.

■

Charging port lid

●

If the rear edge of the charging port lid (the position shown in the illustra-
tions on P. 111 and 122) is pressed when the doors are locked and you are
not  carrying  the  electronic  key,  the  charging  port  lid  opens  slightly,  but
remains locked. Carry an electronic key or unlock the doors, and then press
the charging port lid twice to open it.

●

If the charging port lid is opened and closed repeatedly, the charging port lid
lock may not operate in order to protect the system. In this case, press the
charging port lid twice after a while.

■

If the smart key system has been deactivated in a customized setting

The smart lid & connector locking system will also be deactivated. If the smart
key system has been deactivated in a customized setting, the charging port
lid can be locked and unlocked by performing the following procedures.

●

Locking the charging port lid

Close the charging port lid. (



P. 112)

Locking the doors using the wireless remote control or door lock switch. 
(



P. 282, 283)

The charging port lid can be locked if the steps   and   are performed in
reverse.

●

Unlocking the charging port lid

Unlocking  the  doors  using  the  wireless  remote  control  or  door  lock
switch. (



P. 282, 283)

Open the charging port lid. (



P. 111)

2

1

2

1

2

1

2

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PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

■

If the charging port lid does not open

If the charging port lid does not open when using the normal procedure, it can
be opened in an emergency by performing the following steps.

Open the back door. (



P. 287)

Prepare the wheel nut wrench. (



P. 630)

Insert a wheel nut wrench as shown in the illustration.

Press the center of the rear edge of the charging port lid to open it. 
(



P. 111)

This  unlocking  method  is  a  temporary  correction  procedure  for  emergency
use only. If the problem persists, have the vehicle inspected by your Toyota
dealer immediately.

Pull  the  knob  and  remove  the  cover
shown in the illustration.

Insert  the  end  of  the  wheel  nut
wrench along the cutout of the cover
installation area.
Temporarily  place  the  L-shaped  part
of the wheel nut wrench where it con-
tacts the deck board.
(Place the wheel nut wrench so that it
is perpendicular to the work hole.)

From the condition in step  , insert the
wheel  nut  wrench  upwards  into  the
vehicle.
Pressing  the  emergency  release  lever
inside  the  work  hole  will  unlock  the
charging port lid.

1

2

3

4

1

2

5

4

6

PRIUS PRIME_OM_OM47D71U_(U)

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2-2. Charging

2

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in hybrid system

■

Locking and unlocking the charging connector

Carry  the  electronic  key  on  your  person,  for  example  in  your
pocket.

Insert the charging connector
into the charging inlet. 
(



P. 147)

Press the charging connector
lock switch.

The  charging  connector  is
locked  and  unlocked  each  time
the switch is pressed.

Using the charging connector locking system

1

2

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2-2. Charging

■

Changing the charging connector lock settings

The method for locking and unlocking the charging connector can
be  changed  as  follows  in  the  “Vehicle  Settings”  settings  on  the
multi-information display.

Refer to P. 246 for details on how to change the settings.

*

1

: Carrying the electronic key and unlocking the doors is not necessary.

*

2

: The charging connector can be locked and unlocked by similar operations

to that of “Manual Lock”.

*

3

: The charging connector will be unlocked if power supply is interrupted due

to a power outage etc. after the charging connector is automatically locked.

Setting

Operation description

“Manual Lock” 

(Default setting)

The charging connector  is locked and  unlocked by
pressing  the  charging  connector  lock  switch  when
carrying  the  electronic  key  or  after  unlocking  the
doors.

“Auto Lock”

The  charging  connector  is  automatically  locked
when the charging connector is connected.

*

1, 2

“Auto Lock & Auto 

Unlock”

The  charging  connector  is  automatically  locked
when  the  charging  connector  is  connected  and
automatically  unlocked  when  charging  is  com-
pleted.

*

1, 2, 3

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2

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■

Charging connector locking system

●

If  the  charging  connector  lock  switch  is  operated  repeatedly,  the  charging
connector locking system may not work to protect the system. In this case,
wait for a while before operating the switch again.

●

The charging connector locking system does not guarantee to prevent theft
of the charging cable, and is not necessarily effective for all the situations.

■

When the charging connector cannot be inserted into the charging inlet

■

If the smart key system has been deactivated in a customized setting

●

The  smart  lid  &  connector  locking  system  will  also  be  deactivated.  If  the
smart  key  system  has  been  deactivated  in  a  customized  setting,  the
charging connector can be locked and unlocked by performing the following
procedure.

Unlock the doors using the wireless remote control or door lock switch.
(



P. 282, 283)

Insert the charging connector into the charging inlet (only when locking
the charging connector).
Press the charging connector lock switch.
The charging connector will lock or unlock.

●

When the charging connector lock setting (



P. 126) is set to “Auto Lock”,

the  above  procedures  are  only  necessary  when  unlocking.  When  set  to
“Auto Lock & Auto Unlock”, the connector lock function operates, even if the
smart key system is deactivated.

Check  that  the  connector  lock  pin  is  not
lowered.
If  the  connector  lock  pin  is  lowered,  the
connector  lock  is  operating.  Carry  an
electronic  key  or  unlock  the  doors,  and
then  press  the  charging  connector  lock
switch  to  unlock  the  connector  lock  and
check  that  the  connector  lock  pin  is  not
lowered.

Connector lock pin

1

2

3

128

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

■

If the charging cable cannot be unlocked

If the charging connector cannot be unlocked by pressing the charging con-
nector  lock  switch  even  after  carrying  an  electronic  key  or  unlocking  the
doors, the charging connector can be unlocked by operating the emergency
release lever.

Approximately 2.0 in. (50 mm)
Approximately 0.9 in. (20 mm)
Open the back door. (



P. 287)

Pull the knob and remove the cover as
shown in the illustration.

Insert a hand from the lower side of the
vehicle  obliquely  upward,  and  hook  a
finger to the emergency release lever.

Move  the  emergency  release  lever  in
the direction shown in the illustration.

*

The charging connector is unlocked and
can be removed.

*

: Make  sure  to  move  in  the  direction

shown in the illustration. Applying force
in  other  directions  may  damage  the
emergency release lever.

1

2

1

2

3

4

PRIUS PRIME_OM_OM47D71U_(U)

129

2-2. Charging

2

Plug-

in hybrid system

Reinstall the cover to the its original position.

This method is a temporary correction procedure for emergency use only. If
the problem persists, have the vehicle inspected by your Toyota dealer imme-
diately.
Do  not  operate  the  emergency  release  lever  when  the  charging  connector
can be unlocked in the normal procedure.

■

When recharging or replacing the 12-volt battery



P. 718

WARNING

■

When connecting the charging connector to the charging inlet

5

●

Do  not  insert  hand  into  the  connector
lock portion.
A hand may be caught in the connector
lock pin, resulting in an injury.

●

Be careful not to touch the charging port
lid lock portion.
When the connector lock operates, the
charging port lid lock will also operate.
The charging port lid lock pin may hit a
hand, resulting in an injury.

Connector lock pin

Charging port 
lid lock pin

130

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

NOTICE

■

When locking the charging connector

Observe the following precautions. Failure to do so may cause a malfunc-
tion in the charging connector locking system.

●

Check that the charging connector is compatible with this vehicle
A  charging  connector  of  the  different  type  or  a  charging  connector  with
damaged or deformed insertion part may not be locked.

●

Do  not  operate  the  charging  connector  lock  switch  before  the  charging
connector is connected

●

Operate  the  charging  connector  lock  switch  after  firmly  inserting  the
charging connector into the charging inlet

●

Do not apply excessive force to the charging connector when the charging
connector is locked
When removing the charging connector, make sure to unlock the charging
connector.

131

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

2

Plug-

in hybrid system

Power sources that can be used

●

Connect to an AC 120 V outlet (NEMA 5-15R) with a Ground-Fault
Circuit-Interrupter (GFCI) and a circuit breaker. Use of a 15A indi-
vidual circuit is strongly recommended to ensure charging cable will
operate properly. 

●

When charging outdoors, make sure to connect to a weatherproof
outlet that is certified for outdoor use.
Checking Ground-Fault Circuit-Interrupter (GFCI) operation before
its use is recommended.

NEMA 5-15R outlet

The  illustration  is  an  example
shown  for  demonstration  pur-
poses,  and  may  differ  from  the
actual configuration.

An  external  power  source  that  fulfills  the  following  criteria  is
necessary  for  charging  this  vehicle.  Confirm  this  before
charging.

WARNING

■

Warnings for electrical faults

Make  sure  to  observe  the  precautions  in  this  Owner’s  Manual  when
charging the vehicle.
Failure  to  use  a  power  source  that  fulfills  the  requirements,  or  failure  to
observe  regulations  while  charging  could  lead  to  an  accident,  possibly
resulting in death or serious injury.

Power sources

Outlets that can be connected

132

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

■

The charging environment

For safe charging, the following charging equipment and settings are recom-
mended.

●

Weatherproof outlet
When  charging  outdoors,  connect  the  plug  to  a  weatherproof  outlet,  and
ensure that the plug remains waterproof while the plug is connected.

●

Dedicated circuit
• To reduce the risk of fire, connect only to an at least 15A branch circuit

with  an  over-current  protection  in  accordance with  the  National  Electric
Code, ANSI/NFPA 70.

• To reduce the risk of electric shock when working with the plug, connect

to a outlet with a Ground-Fault Circuit-Interrupter (GFCI) or that has an
Earth Leakage Circuit Breaker installed.

■

When your circuit breaker trips during charging

The upper limit of the charging current can be changed in the “Vehicle Set-
tings” settings on the multi-information display.

Press 

 or 

 of the meter control switches to select 

 (“Vehicle

Settings”) in the 

 screen, and then press 

.

Press 

 or 

 of the meter control switches to select “Charge Settings”,

and then press 

.

The “Charge Settings” screen will display.

Press 

 or 

 of the meter control switches to select “Charge Current”,

and then press 

.

The “Charge Current” screen will display.

Press 

  or 

  of  the  meter  control  switches  to  select  “8A”,  and  then

press 

.

The maximum charging current during charging will be restricted to 8A.

*

If the breaker still trips while charging, even after changing the upper limit of
the charging current, check if the connected power source meets the speci-
fied charging conditions. (



P. 131)

*

: Restricting the charging current will lengthen the charging time.

1

2

3

4

PRIUS PRIME_OM_OM47D71U_(U)

133

2-2. Charging

2

Plug-

in hybrid system

WARNING

■

Power sources precautions

Observe the following precautions.
If you do not follow them, fire, electrical shock or damage may occur, possi-
bly resulting in death or serious injury.

●

Connect to an AC 120 V outlet (NEMA 5-15R) with a Ground-Fault Circuit-
Interrupter (GFCI) and supplied by a circuit breaker per your local code.
Use of a 15A individual circuit is strongly recommended.

●

Use of a block heater for charging is prohibited.

●

Make sure to connect the charging connector and charging inlet directly.
Do  not  connect  a  converting  adaptor  or  extension  cord  between  the
charging connector and charging inlet.

●

Do not connect the charging cable to a
multi-outlet adaptor, multi-plugs, or con-
version plug.

●

Connecting  the  charging  cable  to  an
extension cord is strictly prohibited. The
extension cord may overheat and does
not contain a Ground-Fault Circuit-Inter-
rupter (GFCI). 
The  leakage  detection  function  of  the
CCID  (Charging  Circuit  Interrupting
Device) may not operate correctly.

●

Do not connect to a power strip.

ITO12P109

ITO12P110

134

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

Charging methods

◆

Charging from an external power source (



P. 146)

This is a charging method used when charging from an AC outlet
(120 V) with the charging cable equipped to the vehicle or charging
at a public charging station.

The charging start time (or departure time) and day can be set to carry
out charging using the charging schedule at the desired date and time.
(



P. 157)

◆

Using the hybrid battery (traction battery) charge mode 
(



P. 89)

The plug-in hybrid system can be switched to hybrid battery (trac-
tion battery) charge mode to charge the hybrid battery (traction bat-
tery) using electricity generated by gasoline engine operation.

The  maximum  charge  amount  in  the  hybrid  battery  (traction  battery)
charge mode is approximately 80% of the fully charged capacity for the
charging from an external power source.

The time required to charge the hybrid battery (traction battery) differs
according to the charging voltage and charging current.

*

1

: This  is  the  maximum  value.  Furthermore,  the  upper  limit  of  the  charging

current can be changed in the “Vehicle Settings” settings. (



P. 132)

*

2

: The time required for charging to complete depends on conditions such as

the  remaining  charge  of  the  hybrid  battery  (traction  battery),  the  outside
temperature and specifications of a charger (charging station).

The following methods can be used to charge the hybrid battery
(traction battery).

Estimated charging time

Connected power 

source

Charging station

Home power source

Charging voltage

AC 240 V

AC 120 V

Charging current

*

1

16A

12A

Estimated charging 

time

*

2

Approximately 2 hours

Approximately 5 hours 

10 minutes

PRIUS PRIME_OM_OM47D71U_(U)

135

2-2. Charging

2

Plug-

in hybrid system

■

Charging time may increase

In the following situations, charging time may become longer than normal:

●

In very hot or very cold temperatures.

●

The  vehicle  is  consuming  a  lot  of  electricity,  for  example,  when  the  head
light switch is on etc.

●

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.

●

The maximum charging current is set to 8A through the “Vehicle Settings”
settings. (



P. 132)

●

When the “Traction Battery Heater” operates.

●

When the “Traction Battery Cooler” is operated before charging. (



P. 136)

●

When the plug generates heat due to a loose outlet connection etc.

■

Using a DC Charger

DC Chargers cannot be used with this vehicle.

This  vehicle  is  equipped  with  several  functions  that  are  linked  with
charging.

■

“Traction Battery Heater”

When the outside temperature is low and the charging cable is con-
nected to the vehicle, this function automatically warms the hybrid
battery (traction battery) until it reaches or exceeds a certain tem-
perature.

●

When the charging cable is removed from the vehicle or remains
connected  to  the  vehicle  for  approximately  3  days,  the  system
automatically stops.

●

When the charging schedule is used (



P. 157), this function will

operate according to the charging schedule.

Charging-linked functions

136

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

■

Hybrid battery (traction battery) warming control (Alaska and
Canada only)

This control operates after the charging cable remains connected to
the vehicle for 3 days and “Traction Battery Heater” automatically
stops. It automatically insulates the hybrid battery (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.

■

“Traction Battery Cooler”

When the hybrid battery (traction battery) is hot, this function pro-
tects  it  by  using  the  vehicle  air  conditioning  to  cool  it  before
charging is carried out.
When  the  hybrid  battery  (trac-
tion  battery)  is  above  a  certain
temperature  and  the  power
switch  is  turned  off,  a  check
screen  is  displayed  on  the
multi-information  display  that
indicates whether “Traction Bat-
tery Cooler” is implemented.

When “No” is selected, the hybrid battery (traction battery) cooling sys-
tem does not operate.

PRIUS PRIME_OM_OM47D71U_(U)

137

2-2. Charging

2

Plug-

in hybrid system

■

“Traction Battery Heater”

●

“Traction  Battery  Heater”  may  operate  when  charging  is  not  being  per-
formed.

●

When  “Traction  Battery  Heater”  is  operating,  the  charging  indicator  illumi-
nates.

●

When “Traction Battery Heater” is operating during charging, the charging
time may be longer than normal.

●

If the outside temperature becomes high while “Traction Battery Heater” is
operating,  charging  may  complete  earlier  than  the  “Departure”  time  set.
(



P. 157)

●

“Traction Battery Heater” can be turned on and off in the “Vehicle Settings”
settings on the multi-information display. (



P. 753)

●

“Traction Battery Heater” may operate even when the hybrid battery (trac-
tion battery) is fully charged depending on the temperature of the hybrid bat-
tery (traction battery).
• The remaining charge of the hybrid battery (traction battery) decreases

when  “Traction  Battery  Heater”  operates.  The  charging  operation  may
start again to charge the hybrid battery (traction battery).

• “Charging  Stopped  Due  to  Pulled  Charging  Connector”  may  be  shown

when the charging connector is removed while recharging. (



P. 185)

138

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

■

“Traction Battery Cooler”

●

When  the  hybrid  battery  (traction  battery)  is  above  a  certain  temperature
and the power switch is turned off, a check screen is displayed on the multi-
information display that indicates whether “Traction Battery Cooler” is imple-
mented. Approximately 5 minutes after selecting “Yes” on this screen, sys-
tem operation becomes possible.

●

When charging starts, “Traction Battery Cooler” only operates if the hybrid
battery (traction battery) temperature is hot.

●

The  charging  indicator  is  illuminated  while  “Traction  Battery  Cooler”  is  on
standby or operating.

●

“Traction  Battery  Cooler”  is  implemented  for  a  maximum  of  approximately
30 minutes. However, when the “Departure” time is set (



P. 157) and there

is not sufficient time between the current time and the time that charging will
complete, “Traction Battery Cooler” operation time may become shorter.

●

When  there  is  a  small  amount  of  remaining  charge  in  the  hybrid  battery
(traction battery), even if the hybrid battery (traction battery) is hot, “Traction
Battery Cooler” may not be implemented.

●

When the following operations are performed while “Traction Battery Cooler”
is operating, the hybrid battery (traction battery) cooling operation stops.
• A door is opened
• The hood is opened
• The power switch is turned to any mode other than off
• The shift position is changed to any position other than P
• The Remote Air Conditioning System is operated (



P. 535)

• “Charge Now” is implemented (



P. 158)

• The amount of remaining charge in the hybrid battery (traction battery) is

below a certain amount

●

When  the  power  switch  is  turned  off,  a  check  screen  is  displayed  on  the
multi-information display that indicates whether “Traction Battery Cooler” is
implemented. This check screen can be turned on and off in the “Meter Cus-
tomize” settings on the multi-information display (



P. 248). However, when

the check screen is set to “Off”, “Traction Battery Cooler” is no longer oper-
ates.

●

“Traction Battery Cooler” uses the power of the hybrid battery (traction bat-
tery) and external power source.
• While “Traction Battery Cooler” is operating, the amount of the remaining

charge of the hybrid battery (traction battery) increases and decreases in
a certain range, and does not increase as in normal charging.

• The operation of “Traction Battery Cooler” is recognized as charging by a

charger. The charger that calculates the fee according to charging time
causes a charging fee.

139

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

2

Plug-

in hybrid system

Charging tips

To  enable  the  use  of  EV  mode,  we  recommend  systematically
charging the vehicle.

Before leaving home

In  order  to  use  EV  mode,  charge
the hybrid battery (traction battery)
at home before leaving.
The charging schedule function 
(



P.  157)  can  be  used  to  set  the

system  to  automatically  fully
charge  the  hybrid  battery  (traction
battery) before your desired depar-
ture time. It is also possible to set
the  air  conditioning  to  make  the
interior  in  a  comfortable  state
before your desired departure time.

At your destination

Use  a  public  charging  station  to
charge  the  hybrid  battery  (traction
battery).
If there are no charging facilities at
your destination, the hybrid battery
(traction  battery)  can  be  charged
using  the  hybrid  battery  (traction
battery) charge mode. (



P. 89)

*

After returning home

In order to drive the next time, charge the hybrid battery (traction battery).
Settings the charge schedule allows you to charge the hybrid battery (trac-
tion battery) at the desired time such as late at night or early in the morn-
ing.  Furthermore,  the  charging  schedule  can  be  set  to  automatically
charge the hybrid battery (traction battery) every day or at the same time
on certain days. (



P. 157)

*

: When using the hybrid battery (traction battery) charge mode while parked,

make sure that no flammable objects are near the vehicle and the vehicle
is parked in a well-ventilated area. (



P. 97)

This  section  explains  methods  for  using  the  charging  function
for this vehicle and checking information related to charging.

Systematically charging

1

2

3

140

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

■

Searching charging stations (vehicles with 11.6-inch display)

After applying to Entune App Suite, it is possible to use the smartphone appli-
cation to search the nearby charging stations.
For details about Entune App Suite, refer to http://www.toyota.com/entune/.

Information related to charging can be displayed and checked on the
multi-information display or 11.6-inch display (if equipped).

Refer to P. 267 for details on the screen display for the 11.6-inch display (if
equipped).

■

While charging

When  any  door  is  opened
during  charging,  the  current
charging condition and remain-
ing  time  until  charging  is  com-
plete can be checked.

■

After charging is complete

After  charging  is  complete,  the
first time that the hybrid system
is  started,  a  message  detailing
the  results  of  the  charging  is
displayed.  Also,  a  message  is
displayed  if  an  operation  that
stops  charging  is  performed  or
a situation where charging can-
not be performed occurs.

When a message is displayed, follow the instructions displayed on the
screen. (



P. 185)

■

Combination meter display during charging

If approximately 100 seconds elapse after the power switch is turned to ON
mode during charging, the power switch will automatically turn off and the dis-
play will disappear.

Checking information related to charging

141

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

2

Plug-

in hybrid system

Things to know before charging

This  vehicle  has  been  designed  to  allow  charging  from  an  external
power source using a charging cable for exclusive use with standard
household AC outlets.
However, the vehicle differs greatly from standard household electri-
cal goods in the following ways, and incorrect usage could cause fire
or electric shock, possibly leading to death or serious injury.

●

The charging operation is designed to operate at 12A continuously
for the charge duration (up to 5 hours 10 minutes). (



P. 134)

●

Charging can be conducted outdoors.

To charge properly, follow the procedure after reading the explanation
below. Charging is intended to be carried out by licensed drivers only
who properly understand the charging procedure.

●

Do not allow children to use the charging cable without supervision.
Also, keep the charging cable out of reach of infants.

●

When charging with a charger, follow the procedures for using each
charger.

●

When charging using a public charging facility, check the setting of
the charging schedule function.

• When the charge schedule is registered, temporarily turn off the

function or turn “Charge Now” on. (



P. 164, 166, 174, 175)

• When  the  charge  schedule  is  set  to  ON,  charging  will  not  start

even if the charging cable is connected. Also, charging fee may
occur due to connection of the charging cable.

Make sure to read the following precautions before connecting
the charging cable to the vehicle and charging the hybrid battery
(traction battery).

Charging precautions

142

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2-2. Charging

Before charging, always check the following items.

●

The parking brake is applied. (



P. 352)

●

The headlights are switched off or set to AUTO, and lights such as
the emergency flashers and interior lights etc. are switched off.

If  these  light  switches  are  turned  ON,  then  these  features  will  consume
electricity, and charging time will increase.

●

The power switch is off. (



P. 338)

Before charging, make sure that each part of the charging cable is in
good condition. (



P. 120)

■

Safety functions

●

The hybrid system will not start while the charging cable is attached to the
vehicle, even if the power switch is operated.

●

If  the  charging  cable  is  connected  while  the  “READY”  indicator  is  illumi-
nated, the hybrid system will stop automatically and driving will not be possi-
ble.

●

When the charging cable is connected to the vehicle, the shift position can-
not be changed from P to another position.

■

During charging

The followings occur, however, it does not indicate a malfunction. 

●

The charging starting time may differ depending on the state of the vehicle.

●

During charging, the sound of the fan may be heard from the onboard trac-
tion battery charger cooling air intake vents. (



P. 145)

●

During and after charging, the rear seat and its surrounding area in which
the onboard traction battery charger is installed may get warm.

Confirm the following before charging

Inspecting the charging cable

PRIUS PRIME_OM_OM47D71U_(U)

143

2-2. Charging

2

Plug-

in hybrid system

■

Capacity reduction of the hybrid battery (traction battery)

The  capacity  of  the  hybrid  battery  (traction  battery)  will  decline  gradually
when  the  hybrid  battery  (traction  battery)  is  in  use.  The  rate  at  which  it
declines will differ in accordance with environmental conditions and the way
in which the vehicle is used. Observing the following can help suppress bat-
tery capacity decline.

●

Avoid parking the vehicle in areas with a high temperature under direct sun-
light when the hybrid battery (traction battery) is fully charged.

●

Avoid accelerating and decelerating frequently and suddenly when EV driv-
ing.

●

Avoid frequent driving near the top speed for EV driving. (



P. 95)

●

Leave  a  low  level  of  charge  in  the  hybrid  battery  (traction  battery)  when
leaving the vehicle undriven for a long period of time.
After  confirming  that  EV  mode  has  switched  to  HV  mode,  turn  the  power
switch off.

●

Use the charging schedule function as much as possible in order to fully
charge  the  hybrid  battery  (traction  battery)  immediately  before  starting
off. (



P. 157)

Also, if the hybrid battery (traction battery) capacity reduces, the distance that
can  be  driven  in  EV  mode  decreases.  However,  vehicle  performance  does
not significantly become worse.

■

When the remaining charge of the hybrid battery (traction battery) is low
after charging

In the following situations, the remaining charge of the hybrid battery (traction
battery) after charging completes may be less than normal in order to protect
the  system  (the  EV  driving  range  after  the  battery  is  fully  charged  may  be
shorter).

*

●

Charging is carried out when the outside temperature is low or high

●

Charging  is  carried  out  immediately  after  high-load  driving  or  in  extreme
heat

When none of the above situations apply and there is a drastic drop in the
remaining charge of the hybrid battery (traction battery) after charging com-
pletes, have the vehicle inspected by your Toyota dealer.

*

: When this occurs, even if the remaining charge display of the hybrid battery

(traction battery) shows that it is fully charged, the remaining charge rapidly
decreases faster than normal.

■

When the charging amount sent to the hybrid battery (traction battery)
decreases

When the amount of power supplied by the charger is low or operation of the
“Traction Battery Heater”, etc., reduces the charging power sent to the hybrid
battery (traction battery), the charging amount sent to the hybrid battery (trac-
tion battery) may decrease.

144

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

■

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 harmful interference, and 
(2) this device must accept any interference received, including interference

that may cause undesired operation.

WARNING

■

Caution when charging

People with implantable cardiac  pacemakers or cardiac resynchronization
therapy-pacemakers  should  not  carry  out  the  charging  procedure.  Ask
someone else to do it.

●

Do not approach the charger and charging cable while charging.
Charging procedure may affect the operation of such devices.

●

Do not remain in the vehicle during charging.
Charging procedure may affect the operation of such devices.

●

Do not enter the vehicle even to take something out of the luggage com-
partment.
Charging procedure may affect the operation of such devices.

■

When the charging cable is connected to the vehicle

Do not operate the shift lever.
In the unlikely event that the charging cable has been damaged, the shift
position may change from P to another position and the vehicle could move,
possibly leading to an accident.

NOTICE

■

Precautions when handling charging cable

Make  sure  to  observe  the  following  precautions.  Failure  to  observe  these
precautions may result in damage to the charging cable and charging inlet.

●

Insert the charging connector straight into the charging inlet.

●

After inserting the charging connector, do not apply excessive force to or
twist the connector. Also, do not lean on the connector or hang any objects
from it.

●

Do not step on or trip over the charging cable.

●

Vehicles with smart lid & connector locking system: Before removing the
charging connector, make sure that it is unlocked. (



P. 152)

●

After removing the charging cable, promptly return it to its proper location.

●

After removing the charging connector, securely install the charging inlet
cap.

PRIUS PRIME_OM_OM47D71U_(U)

145

2-2. Charging

2

Plug-

in hybrid system

NOTICE

■

Onboard traction battery charger cooling air intake vents

●

Do not block the air intake vents with seat covers or luggage

●

If  the  air  intake  vents  are  clogged  with  dust,  clean  them  with  a  vacuum
cleaner

●

Do not allow water or foreign matter to enter the air intake vents

●

Do not spill large amounts of water near the air intake vents
If water is spilled, have the vehicle inspected by your Toyota dealer and do
not charge the hybrid battery (traction battery) before the inspection.

The  grilles  under  the  rear  seats  are  the
cooling  air  intake  vents  for  the  onboard
traction  battery  charger  installed  under
the seats. 
Make  sure  to  observe  the  following  pre-
cautions regarding the cooling  air intake
vents.  Failure  to  observe  these  precau-
tions  may  result  in  a  charging  system
malfunction.

146

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

How to charge



P. 142

Prepare the charging cable.
Insert  the  charging  cable  into
the outlet of the external power
source.

Make sure to hold the body of the
plug and insert it firmly into the out-
let.
Check  that  the  power  indicator  on
the  CCID  (Charging  Circuit  Inter-
rupting Device) is illuminated. (If it
is not illuminated, refer to P. 180)
In order to reduce the load on the
outlet and plug, when inserting the
plug, use a string, etc. to hang the
CCID (Charging Circuit Interrupting
Device) on a hook or equivalent.

Open  the  charging  port  lid.
(



P. 111)

The  charging  inlet  light  will  illumi-
nate.

This section explains the procedure for charging the hybrid bat-
tery (traction battery) with the equipped charging cable.
When using a charging station, make sure to check the opera-
tion instructions on the charging station.

When the charge schedule is registered, make sure “Charge Now”
is turned on before charging. (



P. 166, 175)

Confirm the following before charging

When charging

1

2

Charging inlet light

3

PRIUS PRIME_OM_OM47D71U_(U)

147

2-2. Charging

2

Plug-

in hybrid system

Remove  the  charging  inlet  cap
and  secure  it  as  shown  in  the
illustration.

Remove  the  protective  cap  of
the  charging  connector  and
secure it to the cable.

Insert  the  charging  connector
into the charging inlet.

Align the guide position on the bot-
tom of the charging connector, and
push  the  charging  connector
straight  into  the  charging  inlet  as
far as possible.
Once  a  “click”  sound  is  heard,
check  that  the  charging  connector
is securely locked.

4

5

6

148

PRIUS PRIME_OM_OM47D71U_(U)

2-2. Charging

Confirm  that  the  charging  indi-
cator is illuminated.

Charging  will  not  start  if  the
charging  indicator  does  not  illumi-
nate  when  the  charging  connector
is inserted. (



P. 181)

If the charging indicator is flashing,
the  charge  schedule  is  registered.
(



P. 149)

If  the  error  warning  indicator  on  the  CCID  (Charging  Circuit  Interrupting
Device)  flashes  during  charging,  check  P.  118  and  follow  the  correction
procedure.

Vehicles  with  smart  lid  &  con-
nector locking system: 
When  you  wish  to  lock  the
charging  connector,  carry  an
electronic  key  and  press  the
charging connector lock switch.

The  charging  connector  will  be
locked by the smart lid & connector
locking  system. After  the  charging
connector  is  locked,  the  charging
connector  cannot  be  unlocked  by
pressing  the  charging  connector
lock  switch  if  the  electronic  key  is
not  in  detection  area  of  charging
port lid. (



P. 293)

The charging indicator will turn off when charging is completed.

7

8

PRIUS PRIME_OM_OM47D71U_(U)

149

2-2. Charging

2

Plug-

in hybrid system

■

During charging

●

The surface of the CCID (Charging Circuit Interrupting Device) may become
hot, but this does not indicate a malfunction.

●

Depending  on  radio  wave  conditions,  interference  may  be  heard  on  the
radio.

●

The  current  charging  condition  and  the  estimated  time  until  charging  will
complete can be checked on the multi-information display or 11.6-inch dis-
play (if equipped). (



P. 140, 273)

●

During charging, the hybrid battery (traction battery) status indicator illumi-
nates and flashes, and changes according to the charging amount. 
(



P. 112)

■

If the charging indicator flashes after connecting the charging cable

The  charge  schedule  (



P.  157)  is  registered  and  charging  cannot  be  per-

formed. To cancel charging using the charging schedule and start charging,
perform any of the following procedures.

●

Turn “Charge Now” on (



P. 166, 175)

●

While the charging indicator is flashing, remove and reconnect the charging
connector within 5 seconds

■

When the charging connector cannot be inserted into the charging inlet
(vehicles with smart lid & connector locking system)



P. 127