engine TOYOTA PRIUS PLUG-IN HYBRID 2020 Owner's Manual

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2-1. Plug-in hybrid system
Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
EV driving range
The value displayed on the multi-information display etc. (P. 225,
241, 248, 265) 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. 104)
Displayed value

1522-2. Charging
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Charging methods
◆Charging from an external power source (P. 165)
This is a charging method used when charging from an AC socket
(220 V-240 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. 176)
◆Using the hybrid battery (traction battery) charge mode
(P. 9 9 )
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.
◆Solar charging system (if equipped) (P. 188)
In certain conditions, when the vehicle is parked, the hybrid battery
(traction battery) can be charged by using electricity generated by
the solar panel equipped to the roof of the vehicle.
The maximum charge amount of the solar charging system is approxi-
mately 90% of the fully charged capacity for the charging from an exter-
nal power source. (This does not mean the battery can be fully charged
in one day.)
The following methods can be used to charge the hybrid battery
(traction battery).

2153. Instrument cluster
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Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
Warning lights inform the driver of malfunctions in any of the vehicle’s
systems.
Warning lights
Warning lightsPages
*1Brake system warning light (Red) P. 714
*1Brake system warning light (Yellow) P. 714
*1Charging system warning light P. 714
*1Low engine oil pressure warning light P. 715
*1Malfunction indicator lamp P. 715
*1SRS warning light P. 715
*1ABS warning light P. 715
*1Electric power steering system warning light
(Red/yellow) P. 715
*1, 2PCS warning light P. 716
LTA indicator (Orange) P. 716
*1Slip indicator light P. 716
*1High coolant temperature warning light P. 716
*1, 3PKSB OFF indicator (if equipped) P. 717
Open door warning light P. 717

2213. Instrument cluster
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Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
WARNING
■If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning light not
come on when you start the hybrid system, this could mean that these sys-
tems are not available to help protect you in an accident, which could result
in death or serious injury. Have the vehicle inspected by any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer imme-
diately if this occurs.
NOTICE
■ To prevent damage to the engine and its components
The engine may be overheating if the high coolant temperature warning
light comes on or flashes. In this case, immediately stop the vehicle in a
safe place, and check the engine after it has cooled completely. ( P. 761)

2333. Instrument cluster
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Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
◆Energy monitor
The energy monitor can be used to check the vehicle drive status,
hybrid system operation status and energy regeneration status.
While charging from the external power source, the flow of electrical
energy while charging is displayed.
On vehicles with solar charging system, the approximate power genera-
tion level is also displayed.
When energy is flowing, an arrow appears and a bright point of light
moves to show the direction of the flow of energy. When energy is
not flowing, the bright point of light is not displayed.
●The arrows from the image of the engine to that of the electric
motor (traction motor) or tires are displayed in red.
●The arrow indicating energy consumption is displayed in yellow,
and the arrow indicating energy regeneration or charging is dis-
played in green. Also, the color around the image of the hybrid
battery (traction battery) is changed.
As an example, all arrows are shown in the illustration, but the actual
contents of the display will differ.

2343. Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Except when charging
Gasoline engine
Electric motor
(traction motor)
Air conditioning system oper-
ation
*1
Hybrid battery
(traction battery)
Tire
Bright point of light showing the flow of energy
(Display example)
●When the hybrid battery (traction battery) is being charged, the
bright point of light moves towards .
●During driving, the bright point of light moves from or (or
both depending on the situation) towards .
*2
●When the air conditioning compressor is operating, a bright point
of light moves from to .
●During driving, the image of the tires rotates.
*1: It is displayed while the air conditioning system is operating.
*2: The display may differ depending on the driving status.
■
While charging
Hybrid battery (traction bat-
tery)
Charging connector
(Display example)
When the hybrid battery (traction battery) is being charged, a bright
point of light moves from to .
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2363. Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
◆Hybrid System Indicator
The display changes according to accelerator pedal operation and
displays the current driving status and energy regeneration status.
The display contents of the Hybrid System Indicator are different in EV
mode and HV mode.
The Hybrid System Indicator can be displayed on the sub-screen of the
main display (P. 227) and the head-up display (if equipped)
(P. 265).
■
How to read the display
In EV mode
Charge area
Shows that energy is being recovered via the regenerative charging.
EV driving area
Shows that the vehicle is driven using only the electric motor (traction
motor).
Gasoline engine running area
Shows that the gasoline engine is used as auxiliary power.
Eco area
Shows that the vehicle is being driven in an Eco-friendly manner.
Changed within the “ECO Accelerator Guidance” range. (P. 239)
*1
Head-up display
(if equipped) Sub-screen Multi-information
display
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2373. Instrument cluster
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Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
EV indicator*1, 2
The EV indicator comes on when the vehicle is driven using only the
electric motor (traction motor) or the gasoline engine is stopped.
Hybrid battery (traction battery) status
P. 2 4 2
Eco score
P. 2 4 0
EV driving range
P. 2 6 5
●By keeping the indicator within Eco area, more Eco-friendly driv-
ing can be achieved.
●Charge area indicates regeneration
*3 status. Regenerated
energy will be used to charge the hybrid battery (traction battery).
*1: Not displayed on the sub-screen or head-up display.
*2: The EV indicator function can be turned off in the “Meter Customize”
settings. (P. 260)
*3: When used in this manual, “regeneration” refers to the conversion of
energy created by the movement of the vehicle into electrical energy.
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2383. Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
In HV mode
Charge area
Shows that energy is being recovered via the regenerative charging.
Eco area
Shows that the vehicle is being driven in an Eco-friendly manner.
Changed within the “ECO Accelerator Guidance” range. (P. 239)
*1
Power area
Shows that an Eco-friendly driving range is being exceeded (during full
power driving etc.)
Hybrid Eco area*2
Shows that gasoline engine power is not being used very often.
The gasoline engine will automatically stop and restart under various
conditions.
EV indicator*1, 3
The EV indicator comes on when the vehicle is driven using only the
electric motor (traction motor) or the gasoline engine is stopped.
Hybrid battery (traction battery) status
P. 2 4 2
Head-up display
(if equipped) Sub-screen Multi-information
display
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2423. Instrument cluster
Prius Plug-in Hybrid_OM_OM47D72E_(EE)
■Display of the remaining hybrid battery (traction battery)
●The current amount of the remaining hybrid battery (traction battery) is dis-
played in the Hybrid System Indicator or the sub-screen on the main display.
(P. 227)
• The remaining battery for EV driving in EV mode is displayed in green,
and the remaining battery used in HV mode is displayed in blue.
• The amount of the remaining battery displayed decrease as the vehicle is
driven and increase when the hybrid battery (traction battery) is charged,
electrical energy is regenerated using the regenerative braking (P. 103)
or electricity is generated by the gasoline engine.
• If the remaining battery is not displayed in green, HV mode is automati-
cally selected and EV mode cannot be used. To enable EV driving,
charge the hybrid battery (traction battery). (P. 121)
●The amount of the hybrid battery (traction battery) in HV mode is automati-
cally controlled by the hybrid system. The amount of remaining hybrid battery
(traction battery) in HV mode may not reach the top line
* even if electrical
energy is regenerated using the regenerative braking (P. 103) or electricity
is generated by the gasoline engine. However, this does not indicate a mal-
function. Also, even if the display of the remaining hybrid battery (traction
battery) exceeds the top line, the display is shown in blue until the vehicle
returns to EV mode.
*: The position of the boundary line between EV mode and HV mode on the
display of the remaining hybrid battery (traction battery).
●Depending on the charging situation, when the display of the remaining
hybrid battery (traction battery) is shown during charging, charging continues
even after the display of the remaining hybrid battery (traction battery) shows
a fully charged state. However, this does not indicate a malfunction. Please
wait until charging is finished.The hybrid battery (traction battery)
is fully charged
The hybrid battery (traction battery)
for EV mode is not remaining
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