Page 101 of 784

PRIUS PRIME_OM_OM47A88U_(U)
1012-1. Plug-in hybrid system
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 cond itions 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 v ehicle 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 increa se 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. 104)
● “Charging Complete” is displayed on the multi-information display
when starting off ( →P. 130)
Regardless of the type of power source or whether the charging timer
function is used, charging is completed if the above can be confirmed.
Charging-related messages: →P. 175
Tips for extending the EV driving range
Display when charging is completed
Page 102 of 784
102
PRIUS PRIME_OM_OM47A88U_(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. 103, 114)
Charging indicator ( →P. 106)
Charging connector lock
switch
* ( → P. 117) Hybrid battery (traction bat-
tery) status indicator
(
→ P. 104)
Charging cable ( →P. 107)
Charging port
1
2
3
4
5
6
7
8
Page 104 of 784
104
PRIUS PRIME_OM_OM47A88U_(U)
2-2. Charging
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
Small amountFlashesNot illuminatedNot illuminated
Medium amountIlluminatedFlashesNot illuminated
Large amountIlluminatedIlluminatedFlashes
123
Page 105 of 784

PRIUS PRIME_OM_OM47A88U_(U)
1052-2. 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. 279)
● 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 (tract ion 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. 142) 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
Small amountIlluminatedNot illuminatedNot illuminated
Medium amountIlluminatedIlluminatedNot illuminated
Large amountIlluminatedIlluminatedIlluminated
123
Page 106 of 784

106
PRIUS PRIME_OM_OM47A88U_(U)
2-2. Charging
The illumination/flashing pattern
changes to inform the user of the
charging status in the following
ways.
*1: Flashes for approximately 15 seconds.
*2: Flashes for approximately 10 seconds.
■Charging indicator
When a system malfunction occurs while charging or using the Remote Air
Conditioning System, the charging indicator rapidly flashes for approximately
10 seconds, 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
patternVehicle condition
Illuminated
• Charging is in progress
• Charging is possible
• “Traction Battery Heater” ( →P. 126) is operating
• “Traction Battery Cooler” ( →P. 127) is operating
Flashing
(normally)
*1When charge schedule is registered ( →P. 147) and
charging cable is connected to vehicle
Rapidly flashing*2When charging cannot be carried out due to mal-
function in a power source or the vehicle etc.
( →P. 171)
Not illuminated
• Charging connector is not inserted into charging
inlet
• When the charging timer ( →P. 147) is on standby
• When charging is completed
Page 125 of 784

125
PRIUS PRIME_OM_OM47A88U_(U)
2-2. Charging
2
Plug-in hybrid system
Charging methods
◆Charging from an external power source (→P. 136)
This is a charging method used when charging from an AC outlet
(120 V) with the charging cable equ ipped 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 timer at the desired date and time. (→P. 147)
◆Using the hybrid battery (tra ction battery) charge mode
(→ P. 81)
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 generat ed 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 hybr id 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. 123)
*2: The time required for charging to complete depends on conditions such as
the remaining charge of the hybrid battery (traction battery) and the outside
temperature.
The following methods can be used to charge the hybrid battery
(traction battery).
Estimated charging time
Connected power sourceCharging stationHome power source
Charging voltageAC 240 VAC 120 V
Charging current*116A12A
Estimated charging
time
*2Approximately 2 hoursApproximately 5 hours 10 minutes
Page 126 of 784

126
PRIUS PRIME_OM_OM47A88U_(U)
2-2. Charging
■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 el ectricity, 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. 123)
● When the “Traction Battery Heater” operates.
● When the “Traction Battery Cooler” is operated before charging. ( →P. 127)
■ Using a DC Charger
DC Chargers cannot be used with this vehicle.
This vehicle is equipped with seve ral 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 functi on 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 timer is used ( →P. 147), this function will
operate according to the timer settings.
Charging-linked functions
Page 127 of 784

PRIUS PRIME_OM_OM47A88U_(U)
1272-2. Charging
2
Plug-in hybrid system
■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 th e hybrid battery (traction battery)
in extremely low temperatures.
● This control stops 31 days after the charging cable is connected,
even if it is still co nnected to the vehicle.
● When this control operates, timer charging settings are ignored
and charging starts immediately.
■“Traction Battery Cooler”
When the hybrid battery (traction ba ttery) is hot, this function pro-
tects it by using the vehicle ai r 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.
■ “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. 147)
● “Traction Battery Heater” can be turned on and off in the “Vehicle Settings”
settings on the multi-information display. ( →P. 732)