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821-2. Hybrid system
PRIUS +_OM_OM47B24E_(EE)
◆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. 83)
◆During normal driving
The gasoline engine is predominantly 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.
■Regenerative braking
In the following situations, kinetic ener gy 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.
Page 83 of 509

831-2. Hybrid system
1
PRIUS +_OM_OM47B24E_(EE)
For safety and security
■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
■ 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 t he 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 16 km (10 miles). If the hybrid
battery (traction battery) becomes fully discharged and you are unable to start
the hybrid system, contact any author ized Toyota dealer or repairer, or
another duly qualified and equipped professional.
■ Charging the 12-volt battery
→ P. 455
■ 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 any
authorized Toyota dealer or repair er, or another duly qualified and equipped
professional. Hybrid System Indicator represents the
hybrid system power output and regener-
ative charging. ( →P. 118)
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1001-3. Theft deterrent system
PRIUS +_OM_OM47B24E_(EE)■
Alarm-operated door lock
In the following cases, depending on the situation, the door may automatically
lock to prevent improper entry into the vehicle:
●When a person remaining in the vehicle unlocks the door and the alarm is
activated.
● While the alarm is activated, a person remaining in the vehicle unlocks the
door.
● When recharging or replacing the 12-volt battery.
■ Customization
The alarm can be set to deactivate when the mechanical key is used to
unlock. (Customizable features: →P. 477)
NOTICE
■ To ensure the system operates correctly
Do not modify or remove the system. If modified or removed, the proper
operation of the system cannot be guaranteed.
Page 107 of 509

1072. Instrument cluster
2
Instrument cluster
PRIUS +_OM_OM47B24E_(EE)
Warning lights inform the driver of malfunctions in any of the vehicle’s
systems.
Warning lights
*1
(Red)
Brake system warning
light (→P. 387)*1, 2
(If equipped)
PCS warning light
(→ P. 389)
*1
(Yellow)
Brake system warning
light ( →P. 387)*1Slip indicator light
(→ P. 389)
*1Charging system
warning light ( →P. 387)*1High coolant
temperature warning
light ( →P. 391)
*1
(If equipped)
Low engine oil pressure
warning light ( →P. 388)*1
(If equipped)
Parking lock system
warning light ( →P. 389)
*1
(If equipped)
Hybrid system warning
light ( →P. 388)
(If equipped)
Parking lock
system warning
message
(→ P. 390)
*1Malfunction indicator
lamp ( →P. 388)
(If equipped)
Hybrid battery indicator
light ( →P. 390)
*1SRS warning light
(→ P. 388)*1
(If equipped)
LED headlight warning
light ( →P. 390)
*1ABS warning light
(→ P. 388)*1Automatic headlight
leveling system warning
light ( →P. 391)
*1Electric power steering
system warning light
(→ P. 388)*1
(Flashes)
(If equipped)
P position request
indicator light ( →P. 390)
Page 116 of 509
1162. Instrument cluster
PRIUS +_OM_OM47B24E_(EE)
Hybrid System Indicator displays the hybrid system power output and
regenerative charging and provides Eco-friendly driving assistance in
accordance with the driving conditions and the acceleration.
■Names and meaning of each iconsEco Driving Indicator Light
(vehicles without multi-infor-
mation display)
Turns on when the vehicle is
driven in Eco-friendly.
Hybrid System Indicator
→P. 11 8
EV indicator
The EV indicator comes on
when the vehicle is driven using
only the electric motor (traction
motor) or the gasoline engine is
stopped.
Hybrid System Indicator
1
2
3
Page 122 of 509
1222. Instrument cluster
PRIUS +_OM_OM47B24E_(EE)
Items displayed can be switched by pressing or of the meter
control switches to select and pressing or .
■Energy monitor
The current vehicle hybrid system condition is displayed. (→P. 123)
■Hybrid System Indicator
The hybrid system power output and regenerative charging condi-
tions are displayed. ( →P. 1 1 6 )
■Eco score/Hybrid System Indicator
The eco-driving total count is displayed. ( →P. 125)
■Fuel consumption and instantaneous fuel consumption per
minute
The fuel consumption and instantaneous fuel consumption per
minute is displayed. ( →P. 125)
■Distance to empty/Average vehicle speed after hybrid system
started/Average fuel consumption after hybrid system started
The possible driving range estimated from the remaining fuel
amount, average vehicle speed after the hybrid system is started,
and average fuel consumption are displayed. ( →P. 126)
■OFF display
The OFF display is displayed.
Drive information
Page 124 of 509
1242. Instrument cluster
PRIUS +_OM_OM47B24E_(EE)
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
Energy monitor
Low Full
Page 135 of 509
1352. Instrument cluster
2
Instrument cluster
PRIUS +_OM_OM47B24E_(EE)
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
LowFull
Audio system screen