2022 TOYOTA PRIUS PLUG-IN HYBRID stop start

5015-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
QWhen the operation is suspended
When assist control starts, the vehicle proceeds in a
direction opposite to the guidance.
Follow the guidance provided by the system
to proceed forward.
The maximum number of movements for multi-turn
maneuvering is reached during assist control, or the
target parking spot cannot be reached due to the
control being used on a road with steep grade.
Follow the assist control guidance and use
the system in a wide space that does not have
a steep grade.
MessageSituation/Handling method
MessageSituation/Handling method
The driver holds the
steering wheel during
assist control.Stop the vehicle and
rest your hands on the
steering wheel without
applying any force.
Then press the S-IPA
switch to restart assist
control.
The vehicle speed
exceeds 7 km/h
(4 mph) during assist
control.
The S-IPA switch is
pressed while assist
control is temporarily
stopped and the
steering wheel is
firmly held.Rest your hands on the
steering wheel without
applying any force.
Then stop the vehicle to
restart assist control.
The S-IPA switch is
pressed while assist
control is temporarily
stopped and the vehi-
cle is moving.

5025-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
Assist control is tem-
porarily stopped
(able to be restarted)Stop the vehicle and
rest your hands on the
steering wheel without
applying any force.
Then press the S-IPA
switch to restart assist
control.
The vehicle moved
too close to an obsta-
cle in front of the
vehicle.Press the S-IPA switch
after changing the shift
position to R to restart
assist control.
The vehicle moved
too close to an obsta-
cle to the rear of the
vehicle.Press the S-IPA switch
after changing the shift
position to D to restart
assist control.
MessageSituation/Handling method

5095-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
Driving assist systems
XECB (Electronically Controlled Brake System)
The electronically controlled system generates braking force corre-
sponding to the brake operation
XABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly,
or if the brakes are applied while driving on a slippery road surface
XBrake assist
Generates an increased level of braking force after the brake pedal
is depressed when the system detects a panic stop situation
XVSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or
turning on slippery road surfaces.
XVSC+ (Vehicle Stability Control+)
Provides cooperative control of the ABS, TRC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery
road surfaces by controlling steering performance.
XTRC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from
spinning when starting the vehicle or accelerating on slippery roads
XHill-start assist control
Helps to reduce the backward movement of the vehicle when start-
ing on an uphill
To keep driving safety and performance, the following systems
operate automatically in response to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heavily when operating the vehi-
cle.

5125-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)QOperating conditions of hill-start assist control
When the following four conditions are met, the hill-start assist control will
operate:
OThe shift position is in a position other than P or N (when starting off forward/
backward on an upward incline)
OThe vehicle is stopped
OThe accelerator pedal is not depressed
OThe parking brake is not engaged
QAutomatic system cancelation of hill-start assist control
The hill-start assist control will turn off in any of the following situations:
OShift the shift position to P or N
OThe accelerator pedal is depressed
OThe parking brake is engaged
ONo more than 2 seconds have elapsed after the brake pedal is released.
QSounds and vibrations caused by the ABS, brake assist, VSC, TRC and
hill-start assist control systems
OA sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the hybrid system is started or just after the
vehicle begins to move. This sound does not indicate that a malfunction has
occurred in any of these systems.
OAny of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.
QECB operating sound
ECB operating sound may be heard in the following cases, but it does not
indicate that a malfunction has occurred.
OOperating sound heard from the engine compartment when the brake pedal
is operated.
OMotor sound of the brake system heard from the front part of the vehicle
when the driver’s door is opened.
OOperating sound heard from the engine compartment when one or two min-
utes passed after the stop of the hybrid system.
QEPS operation sound
When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.

5145-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
WARNING
QThe ABS does not operate effectively when
O The limits of tire gripping performance have been exceeded (such as
excessively worn tires on a snow covered road).
O The vehicle hydroplanes while driving at high speed on wet or slick roads.
Q Stopping distance when the ABS is operating may exceed that of nor-
mal conditions
The ABS is not designed to shorten the vehicle’s stopping dista nce. Always
maintain a safe distance from the vehicle in front of you, espe cially in the
following situations:
O When driving on dirt, gravel or snow-covered roads
O When driving with tire chains
O When driving over bumps in the road
O When driving over roads with potholes or uneven surfaces
Q TRC/VSC may not operate effectively when
Directional control and power may not be achievable while drivi ng on slip-
pery road surfaces, even if the TRC/VSC system is operating. Dr ive the
vehicle carefully in conditions where stability and power may b e lost.
Q Hill-start assist control does not operate effectively when
O Do not overly rely on hill-start assist control. Hill-start assist control may
not operate effectively on steep inclines and roads covered wit h ice.
O Unlike the parking brake, hill-start assist control is not intended to hold the
vehicle stationary for an extended period of time. Do not attem pt to use
hill-start assist control to hold the vehicle on an incline, as doing so may
lead to an accident.
Q When the TRC/ABS/VSC is activated
The slip indicator light flashes. Always drive carefully. Reckl ess driving may
cause an accident. Exercise particular care when the indicator light flashes.

5296-1. Using the air conditioning system and defogger
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
6
Interior features
QHeating
O In HV mode, the gasoline engine may operate in order to extract heat from
the engine coolant via the heater.
O In EV mode, heating is done by a heat pump system.
• When the outside temperature is low or it is snowing, compared to con-
ventional vehicles, heating may be less effective and warm air may not
come out.
• If frost has formed on the outside heat exchanger, the heating perfor-
mance will decline. The frost can be removed from the outside h eat
exchanger by operating the Remote Air Conditioning System befor e driv-
ing ( P. 535). When frosted over, the heating operation of the Remote
Air Conditioning System starts after defrosting.
• When is turned on, the heating is controlled optimally. There fore,
the set heating performance may not be achieved even if the fan speed
setting is increased.
O In the following situations the gasoline engine may operate in order to
extract heat from the engine coolant via the heater even in EV mode.
• The outside temperature is approx imately -10°C (14°F) or low
• is operating
Q Using automatic mode
Fan speed is adjusted automatically according to the temperatur e setting and
the ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow
immediately after is pressed.
• When the outside heat exchanger is
frosted over, fan speed declines and it
may become harder to heat the inte-
rior. However, it is not a malfunction.
In this situation, the air temperature
from the outlets may not change even
though the set temperature is raised.Outside heat exchanger

5376-1. Using the air conditioning system and defogger
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
6
Interior features
QWhen using the Remote Air Conditioning System
A charging message will be displayed on the multi-information display. Differ-
ent messages will be displayed depending on when the Remote Air Condi-
tioning System was started (after charging or during charging).
QWhile the Remote Air Conditioning System is operating
ODepending on the operating condition of the Remote Air Conditioning Sys-
tem, the electric fan may spin and an operating noise may be heard.
However, this does not indicate a malfunction.
OThe Remote Air Conditioning System may stop operating temporarily if
other features that use electricity (for example, the seat heater, lights, wind-
shield wipers) are in operation or if the charge level of the 12-volt battery
becomes low.
OThe headlights, windshield wiper, combination meter, etc. will not operate
while the Remote Air Conditioning System is operating.
QElectronic key battery depletion
P. 270
QWhen the electronic key battery is fully depleted
P. 631
QCustomization
Setting (e.g. Operation using “A/C” on the wireless remote control) can be
changed. (Customizable features: P. 724)

558
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
6-4. Using the other interior features
QUsing the wireless charger
Press the power supply
switch of the wireless char-
ger.
Switches on and off with each
press of the power supply
switch.
When turned on, the operation
indicator light (green) comes on.
Even with the hybrid system off,
the on/off state of the power
supply switch is memorized.
Place the charging side of
the portable device down.
When charging, the operation
indicator light (orange) comes
on.
If charging is not occurring, try
placing the portable device as
close to the center of the
charging area as possible.
When charging is complete, the operation indicator light (green ) comes
on.
O Recharging function
• When charging is complete and after a fixed time in the charge
suspension state, charging restarts.
• When the portable device is moved, charging is stopped for a
moment and then it restarts.
1
2