charging TOYOTA PRIUS 2023 Owners Manual

801-4. Hybrid system
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◆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. 81)
◆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.
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 25 km/h (16 mph).
Vehicle proximity notification system

811-4. Hybrid system
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For safety and security
■Regenerative braking
● In the following situations, kinetic energy is converted to electric energy and
deceleration force can be obtained in c onjunction 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 driv ing with the shift position in D or
B.
● Vehicles with GPF system: While the GPF system (P. 440) is operating to
regenerate the exhaust gas filter, the hybrid battery (traction battery) may
not be recharged.
■ 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 16 km (10 miles). If the hybrid
battery (traction battery) becomes fully discharged and you are unable to start
the hybrid system, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
■ Charging the 12-volt battery
 P. 641
Hybrid System Indicator represents the
hybrid system power output and regener-
ative charging. ( P. 132)

851-4. Hybrid system
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For safety and security
There is an air intake vent under
the right side of the rear seat for
the purpose of cooling the hybrid
battery (traction battery). If the
vent is blocked, charging/dis-
charging of the hybrid battery
(traction battery) may become lim-
ited.
When a certain level of impact is detected by the impact sensor, the
emergency shut off system blocks the high voltage current and stops
the fuel pump to minimize the risk of electrocution and fuel leakage. If
the emergency shut off system activates, your vehicle will not restart.
To restart the hybrid system, contact any authorized Toyota retailer or
Toyota authorized repairer, or any reliable repairer.
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 intake vent
Emergency shut off system
Hybrid warning message

901-4. Hybrid system
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NOTICE
■Hybrid battery (traction battery) air intake vent
● Make sure not to block the air intake vent with anything, such as a seat
cover, plastic cover, or luggage. If the vent is 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 get water or foreign materials in the air intake vent 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 any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer.
● There is a filter 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. For information regarding filter cleaning or
replacement, refer to P. 545.
● If “Maintenance Required for Traction Battery Cooling Parts See Owner's
Manual” is shown on the multi-information display, the air intake vent and
filter may be clogged. Refer to P. 545 for information on how to clean the
air intake vent.

951-5. Theft deterrent system
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For safety and security
■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
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.

1112. Instrument cluster
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Instrument cluster
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Warning lights inform the driver of malfunctions in any of the vehicle’s
systems.
Warning lights
Warning lightsPages
*1Brake system warning light (Red) P. 580
*1Brake system warning light (Yellow) P. 580
*1Charging system warning light P. 580
*1Low engine oil pressure warning light P. 581
*1Malfunction indicator lamp P. 581
*1SRS warning light P. 581
*1ABS warning light P. 581
*1Electric power steering system warning light
(Red/yellow) P. 581
*1, 2PCS warning light (if equipped) P. 582
LTA indicator (Orange) (if equipped) P. 582
*1Slip indicator light P. 582
*1High coolant temperature warning light P. 583
*1, 3PKSB OFF indicator (if equipped) P. 583
Open door warning light P. 583

1312. Instrument cluster
2
Instrument cluster
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■Hybrid battery (traction 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. 125)
• Hybrid System Indicator (P. 132)
• Head-up display (if equipped) (P. 161)
●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
1
2

1322. Instrument cluster
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◆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. 125) and the head-up display (if equipped)
(P. 161).
■
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
1
2
3
4

1682. Instrument cluster
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■Hybrid battery (traction battery) status
■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 continuously.
●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. The display changes in 8 levels according
to the remaining charge amount of the
hybrid battery (traction battery).
Low
High
1
2

2414-1. Before driving
4
Driving
PRIUS_OM_OM47F32E_(EE)■
Transmission information
To maintain engine braking efficiency and charging system perfor-
mance when using engine braking, do not use the transmission in
D. Shift the shift position to B.
■If the engine overheats
Towing a loaded trailer up a long, steep incline in temperatures
exceeding 30C (85F) may result in the engine overheating. If the
engine coolant temperature gauge indicates that the engine is over-
heating, turn the air conditioning off immediately, leave the road and
stop the vehicle in a safe place. (P. 645)
■When parking the vehicle
Always place wheel chocks under the wheels of both the vehicle
and trailer. Firmly set the parking brake and shift the shift position to
P.