2018 TOYOTA PRIUS charging

791-3. Hybrid system
PRIUS_OM_OM47B89U_(U)
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For safety and security
◆When stopped/during start off
The gasoline engine stops
* when the vehicle is stopped. During
start off, the electric motor (traction motor) drives the vehicle. At
slow speeds or when traveling down a gentle slope, the engine is
stopped
* and the electric motor (traction motor) is used.
When shift position is in N, the hybrid battery (traction battery) is not
being charged.
*: When the hybrid battery (traction battery) requires charging or the engine is warming up, etc., the gasoline engine will not automatically stop.
(→P. 80)
◆During normal driving
The gasoline engine is predomin antly used. The electric motor
(traction motor) charges the hybrid battery (traction battery) as nec-
essary.
◆When accelerating sharply
When the accelerator pedal is depressed heavily, the power of the
hybrid battery (traction battery) is added to that of the gasoline
engine via the electric motor (traction motor).
◆When braking (regenerative braking)
The wheels operate the electric motor (traction motor) as a power
generator, and the hybrid battery (traction battery) is charged.
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 vehi cle’s approach. The sound will stop
when the vehicle speed exceeds approximately 15 mph (25 km/h).
Vehicle proximity notification system

801-3. Hybrid system
PRIUS_OM_OM47B89U_(U)
■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.
■ Hybrid System Indicator
■ 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 heater is switched on
*: Depending on the circumstances, the gasoline engine may also not stop
automatically in situations other than those above.
■ Charging the hybrid battery (traction battery)
As the gasoline engine charges the hybrid battery (traction battery), the bat-
tery does not need to be charged from an outside source. However, if the
vehicle is left parked for a long time the hybrid battery (traction battery) will
slowly discharge. For this reason, be sure to drive the vehicle at least once
every few months for at least 30 minutes or 10 miles (16 km). If the hybrid
battery (traction battery) becomes fully discharged and you are unable to start
the hybrid system, contact your Toyota dealer.
■ Charging the 12-volt battery
→P. 731
■ After the 12-volt battery has dischar ged or when the terminal has been
removed and installed during exchange, etc.
The gasoline engine may not stop even if the vehicle is being driven by the
hybrid battery (traction battery). If this continues for a few days, contact your
Toyota dealer. Hybrid System Indicator represents the
hybrid system power output and regener-
ative charging. ( →P. 119)

PRIUS_OM_OM47B89U_(U)
1012. Instrument cluster
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Instrument cluster
Warning lights inform the driver of malfunctions in any of the vehicle’s
systems.
Warning lights
Warning lightsPages
*1Brake system warning light (U.S.A.) P. 673
*1Brake system warning light (Canada)
(Red)P. 673
*1Brake system warning light
(Yellow)P. 673
*1Charging system warning light
P. 673
*1Low engine oil pressure warning lightP. 673
*1Malfunction indicator lamp (U.S.A.) P. 673
*1Malfunction indicator lamp (Canada) P. 673
*1SRS warning lightP. 674
*1ABS warning light (U.S.A.) P. 674
*1ABS warning light (Canada)P. 674
*1Electric power steering system warning light
(Red/yellow)P. 674
*1,2PCS warning light (if equipped)
P. 674
*1Slip indicator light P. 674
*1High coolant temperature warning lightP. 675

118
PRIUS_OM_OM47B89U_(U)
2. Instrument cluster
■Hybrid battery (tract ion battery) status
● The display changes in 8 levels according to the remaining charge amount
of the hybrid battery (traction battery).
● The hybrid battery (traction battery) status is also displayed on the following
screen, but the contents of the display are the same.
• Sub-screen of the main display ( →P. 112)
• Hybrid System Indicator ( →P. 11 9 )
• Head-up display (if equipped) ( →P. 146)
● The charge amount of the hybrid battery (traction battery) is automatically
controlled by the hybrid system. For this reason, even if electricity is recov-
ered via the regenerative braking, or electricity is generated via the gasoline
engine, the displayed hybrid battery (traction battery) charge amount may
not reach the highest level (level 8). However, this does not indicate a mal-
function.
■ Remaining charge amount warning of hybrid battery (traction battery)
●The buzzer sounds intermittently when the hybrid battery (traction battery)
remains without charging while the shift position is in N, or the remaining
charge amount drops below a certain level.
If the remaining charge amount drops further, the buzzer sounds continu-
ously.
● When a warning message is shown on the multi-information display and the
buzzer sounds, follow the instructions displayed on the screen to perform
troubleshooting.Low
High
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PRIUS_OM_OM47B89U_(U)
1192. Instrument cluster
2
Instrument cluster
◆Hybrid System Indicator
The display changes according to accelerator pedal operation and
displays the current driving status and energy regeneration status.
The Hybrid System Indicator can be displayed on the sub-screen of the
main display (→P. 112) and the head-up display (if equipped)
( →P. 146).
■
How to read the display
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.
Power area
Shows that an Eco-friendly driving range is being exceeded (during full
power driving etc.)
Hybrid Eco area*1
Shows that gasoline engine power is not being used very often.
The gasoline engine will automatically stop and restart under various
conditions.
Head-up display (if equipped)
Sub-screen
Multi-information
display
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PRIUS_OM_OM47B89U_(U)
1552. Instrument cluster
2
Instrument cluster
These images are examples only, and may vary slightly from actual
conditions.
When the vehicle is charging
the hybrid battery (traction bat-
tery)
When there is no energy flow
Hybrid battery (traction battery)
status
Audio system screen
Low Full

PRIUS_OM_OM47B89U_(U)
1592. Instrument cluster
2
Instrument cluster
■Display the power consumption of the air conditionerDisplay “Energy Monitor” screen.
Select on the upper right screen.
When you select the “ ×”, and close the screen.
■Function summary
The energy monitor can be used to check the vehicle drive status,
hybrid system operation status and energy regeneration status.
■Flow of energy and display details
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 are not displayed.
● The display when the engine is operating is in blue while the
engine is being warmed up and yellow afterwards.
● The arrow from the engine to the motor and tires is 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 hybr id battery (traction battery)
changes color accordingly.
● There is an icon , , on the lower side of the
screen. The screen switches to each point of view when you
select it.
● When you select , this screen is displayed in the lower half of
the screen, it will be displaye d together with the navigation
screen.
● These images are examples only, and may vary slightly from
actual conditions.
How to read the energy monitor
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2

PRIUS_OM_OM47B89U_(U)
1612. Instrument cluster
2
Instrument cluster
*: When the air conditioning compressor is not operating, an arrow does notappear and the bright point of light are not displayed.
When the vehicle is charging the hybrid battery (traction battery)
Air Conditioning System use*Hybrid battery (traction battery) sta-
tus
Low Full