2022 TOYOTA PRIUS PLUG-IN HYBRID traction control

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Prius Plug-in Hybrid_OM_OM47E75E_(EE)
WARNING
QGeneral precautions while driving
Driving under the influence: Never drive your vehicle when unde r the influ-
ence of alcohol or drugs that have impaired your ability to ope rate your vehi-
cle. Alcohol and certain drugs delay reaction time, impair judgment and
reduce coordination, which could lead to an accident that could result in
death or serious injury.
Defensive driving: Always drive defensively. Anticipate mistake s that other
drivers or pedestrians might m ake and be ready to avoid accidents.
Driver distraction: Always give your full attention to driving. Anything that
distracts the driver, such as adjusting controls, talking on a cellular phone or
reading can result in a collision with resulting death or serio us injury to you,
your occupants or others.
Q General precaution regarding children’s safety
Never leave children unattended in the vehicle, and never allow children to
have or use the key.
Children may be able to start the vehicle or shift the vehicle into neutral.
There is also a danger that children may injure themselves by p laying with
the windows, or other features of the vehicle. In addition, hea t build-up or
extremely cold temperatures insi de the vehicle can be fatal to children.

842-1. Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
Plug-in hybrid system features
The illustration is an example for explanation and may differ from the
actual item.
Gasoline engine
Electric motor (traction motor)
The plug-in hybrid system is a system excellent in both econom-
ical efficiency of electric vehicles and practicality of hybrid vehi-
cles.
O EV driving can be performed using electricity charged from an
external power source.*
O If the amount of electricity remaining in the hybrid battery (traction
battery) becomes low, the vehicle is automatically controlled i n
such a way that it can be driven as a hybrid vehicle through th e
joint use of the gasoline engine.
*: The EV driving range will vary in accordance with conditions s uch as
vehicle speed, the amount of charge remaining in the hybrid bat tery
(traction battery) and the usage of the air conditioning system . The gaso-
line engine may also be used simultaneously in accordance with driving
conditions.
1
2

912-1. Plug-in hybrid system
2
Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47E75E_(EE)Q
When in EV mode
In EV mode, EV driving (driving using only the electric motor)
* is
possible. However, depending on the situation, EV driving may be
canceled and both gasoline engine and electric motor are used
(P. 94). Also, if a little electricity is remaining in the hybrid battery
(traction battery), HV mode is automatically selected. To drive in EV
mode long, observe the followings.
OAvoid sudden acceleration and sudden deceleration, and be sure
to drive smoothly.
If you repeatedly accelerate, the hybrid battery (traction battery)
charge will deplete quickly. Also, EV driving may be canceled by
rapid acceleration or vehicle speed.
ORestrain your speed as much as possible. The distance that can
be driven in EV mode will reduce considerably at high speeds.
*: The EV driving range can be checked using the multi-information dis-
play etc. (P. 215, 231, 238, 255)
Q
When in EV City mode
In EV City mode, EV driving (driving using only the electric motor) is
possible.
*1
OMotor output is limited at the same level unless the accelerator
pedal is fully depressed.
When it is necessary to accelerate the vehicle, depress the
accelerator pedal completely or cancel EV City mode as needed.
OIn the following situations, EV City mode is automatically can-
celed.
*2
• When driving in EV driving is not possible. (P. 9 4 )
• When Dynamic radar cruise control with full-speed range is
activated.
• When the accelerator pedal is fully depressed.
*1: The EV driving range can be checked using the multi-information dis-
play etc. (P. 215, 231, 238, 255)
*2: Depending on the circumstances, EV City mode may also be canceled
in situations other than those above.
Control when driving in each mode

922-1. Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47E75E_(EE)Q
When in HV mode
The vehicle can be used in the same way as a standard hybrid
vehicle.
In HV mode, controls are primarily carried out as follows in accor-
dance with the driving conditions.
OThe gasoline engine stops
* when the vehicle is stopped.
ODuring start off, the electric motor (traction motor) drives the vehi-
cle.
ODuring normal driving, the gasoline engine and electric motor
(traction motor) are controlled effectively, and the vehicle is
driven with optimum fuel efficiency. Also, when necessary, the
electric motor (traction motor) operates as an electrical generator
to charge the hybrid battery (traction battery).
OWhen the accelerator pedal is depressed heavily, drive force
from both the gasoline engine and the electric motor (traction
motor) is used to accelerate.
*: When the hybrid battery (traction battery) requires charging or the
engine is warming up, etc., the gasoline engine will not automatically
stop. (P. 95)
Q
When braking (regenerative braking)
The electric motor (traction motor) charges the hybrid battery (trac-
tion battery).
The EV driving range can be extended by actively using this regen-
erative braking to store electricity in the hybrid battery (traction bat-
tery).
Moreover, as fuel consumption is also reduced when in HV mode,
the regenerative braking system can be used effectively.

952-1. Plug-in hybrid system
2
Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47E75E_(EE)QConditions 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
*:
ODuring gasoline engine warm-up
ODuring hybrid battery (traction battery) charging
OWhen the temperature of the hybrid battery (traction battery) is high or low
OWhen the windshield defogger switch is pressed. (P. 527)
*: Depending on the circumstances, the gasoline engine may also not stop
automatically in situations other than those above.
QIf the vehicle is not used for a long time
OThe 12-volt battery may discharge. In this event, charge the 12-volt battery.
(P. 594)
In order to prevent the hybrid battery (traction battery) from becoming
extremely low in charge, charge the hybrid battery (traction battery) from
external power source or start the hybrid system at least once every 2 or 3
months, and turn the power switch off after the gasoline engine has
stopped automatically. (If the gasoline engine does not start up even after
approximately 10 seconds have passed since the “READY” indicator came
on, the power switch can be turned to off without any further action.)
OWhen the vehicle is left with the charging cable connected, the electricity
consumption amount of the 12-volt battery increases due to controls, such
as the system checking, operating. When the charging cable is not needed,
immediately remove it from the vehicle.
OFor vehicles with solar charging system, please refer to P. 181.

982-1. Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
Plug-in hybrid system precautions
The illustration is an example for explanation and may differ from the
actual item.
Take care when handling the hybrid system, as it contains a high
voltage system (about 600V at maximum) as well as parts that
become extremely hot when the hybrid system is operating.
Obey the caution labels attached to the vehicle.
Caution label
Charging inlet
Service plug
Air conditioning compressor
Power control unit and DC/DC
converterElectric motor (traction motor)
High voltage cables (orange)
Onboard traction battery char-
ger
Hybrid battery (traction bat-
tery)1
2
3
4
5
6
7
8
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1062-1. Plug-in hybrid system
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
XAccelerator pedal/brake pedal operation
ODrive your vehicle smoothly. Avoid abrupt acceleration and
deceleration. Gradual acceleration and deceleration will make
more effective use of the electric motor (traction motor) without
having to use gasoline engine power.
OAvoid repeated acceleration. Repeated acceleration consumes
hybrid battery (traction battery) power, resulting in poor fuel con-
sumption. Battery power can be restored by driving with the
accelerator pedal slightly released.
XWhen braking
Make sure to operate the brakes gently and a timely manner. A
greater amount of electrical energy can be regenerated when slow-
ing down.
XDelays
Repeated acceleration and deceleration, as well as long waits at
traffic lights, will lead to high fuel and electricity consumption.
Check traffic reports before leaving and avoid delays as much as
possible. When driving in a traffic jam, gently release the brake
pedal to allow the vehicle to move forward slightly while avoiding
overuse of the accelerator pedal. Doing so can help control exces-
sive electricity and fuel consumption.
XHighway driving
OControl and maintain the vehicle at a constant speed. Before
stopping at a toll booth or similar, allow plenty of time to release
the accelerator and gently apply the brakes. A greater amount of
electrical energy can be regenerated when slowing down.
OElectricity consumption will increase significantly when driving at
high speeds in EV mode. If there will be a long distance to the
next external charging point after leaving a freeway, it is recom-
mended to drive in HV mode while on the freeway and change to
EV mode after leaving the freeway.

2313. Instrument cluster
3
Instrument cluster
Prius Plug-in Hybrid_OM_OM47E75E_(EE)Q
Information display of EV driving
One of the following 2 information in the items of “HV System Indi-
cator” in “Meter Customize” settings can be selected to display in
the left upper corner of the Hybrid System Indicator. (P. 250)
“EV Energy”
The percentage of the remain-
ing hybrid battery (traction bat-
tery) that can be used for EV
driving is displayed.
Becomes 100% when the hybrid
battery (traction battery) is fully
charged.
“EV Distance”
The approximate distance that
can be driven using only the
electric motor (traction motor).
(P. 109)
When the air conditioning sys-
tem is operating, the icon dis-
play changes to and the
driving range with the air condi-
tioning system on is displayed.
QWhen operation of each function stops
OThe Hybrid System Indicator stops operating in the following situations.
• The “READY” indicator is not illuminated.
• The shift position is not D or B.
OThe Eco score and “ECO Accelerator Guidance” stop operating in the fol-
lowing situations.
• The Hybrid System Indicator is not operating.
• Dynamic radar cruise control with full-speed range is being used.
• The speed limiter system is being used and the vehicle speed is approxi-
mately the limit speed or higher.