stop start TOYOTA PRIUS PLUG-IN HYBRID 2022 Workshop Manual

4825-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
When a beep sounds once
and the stop display ( P. 477)
is shown on the display, stop
the vehicle.
When the shift position is changed to R, a high-pitched beep is
emitted and assist control will start.
O When the steering wheel auto operation starts, the steering
wheel auto operation display ( P. 477) and assistance level
indicator ( P. 477) will be shown in the display area.
O To stop assist control, press the S-IPA switch.
Assume an ordinary posture for backing up, rest your hands
lightly on the steering wheel without applying any force, direc tly
confirm the safety of the area to the rear and around the vehic le,
confirm that there are no obstacles in the parking space, and
slowly back up while adjusting your speed by depressing the
brake pedal.
O When backing up too quickly, a sharp beeping sound is emit-
ted and assist control is stopped. ( P. 5 0 1 )
O When the vehicle cannot be cleanly entered within the target
parking spot on the first try and multi-turn maneuvering is nec -
essary, proceed to step .
When multi-turn maneuvering is not necessary, proceed to
step .
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4
5
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12

4875-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
QUsing the exit parallel parking assist mode to depart
With the shift position in P, press the S-IPA switch and check that
the display on the multi-information display switches to “Exit Par-
allel Parking”.
Operate the turn signal lever ( P. 335) to select whether you
would like to depart to the left or right.
If there are any obstacles in the direction the vehicle is depa rting in, the
system determines that it is not possible to depart, and assist control is
stopped.
When the shift position is changed to R (or D) according to the
advice display on the screen ( P. 477), a high-pitched beep is
emitted and assist control will start.
Step and onward is for cases in which the advice display shows “Shift
to [R]” after operating the turn signal lever to select a depar ture direc-
tion.
O When the steering wheel auto operation starts, the steering
wheel auto operation display ( P. 477) and assistance level
indicator ( P. 477) will be shown in the display area.
O To stop assist control, press the S-IPA switch.
Assume an ordinary posture for backing up, rest your hands
lightly on the steering wheel without applying any force, direc tly
confirm the safety of the area to the rear and around the vehic le
and slowly back up while adjusting your speed by depressing the
brake pedal.
O When backing up too quickly, a sharp beeping sound is emit-
ted and assist control is stopped. ( P. 5 0 1 )
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4
4

4915-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
QFunction summary
Stop so that the center of the target parking spot appears near ly
perpendicular to the vehicle. If the space is detectable, the f orward
guidance function can be used. Furthermore, depending on the
parking space and other conditions, multi-turn maneuvering assi st
control is also provided if necessary.
Stop so that the center of the
target parking spot appears
nearly perpendicular to the
vehicle. Then press the S-
IPA switch 2 times to select
back-in parking assist mode.
Steering wheel auto opera-
tion starts when the vehicle
begins to move.
A sound is issued and a dis-
play is shown to notify you
when the vehicle reaches the
position to start backing up
from.
If the detected parking space or
road width (distance to the side
of the road across from the park-
ing space) is narrow, or if there
are obstacles in front of the vehi-
cle, guidance will not be issued.
Parking is complete
This completes the assist mode.
Depending on the condition of the parking space, guidance to st arting
points for moving forward and backing up, as well as the steeri ng wheel
auto operation, are repeated any time multi-turn maneuvering is neces-
sary following step from the time the vehicle begins backing u p until
parking completes.
How to park next to other vehicles (back-in parking assist mode )
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2
3
4
3

4935-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
Assume an ordinary driving
posture, rest your hands
lightly on the steering wheel
without applying any force,
directly confirm the safety of
the area to the front and
around the vehicle and
slowly proceed forward while
adjusting your speed by
depressing the brake pedal.
When this is done, a high-
pitched beep is emitted and
an indicator on the meter illu-
minates at the same time,
after which assist control will
start.
O When the steering wheel auto operation starts, the steering
wheel auto operation display ( P. 477) and assistance level
indicator ( P. 477) will be shown in the display area.
O To stop assist control, press the S-IPA switch.
O When the vehicle speed is too high, a sharp beeping sound is
emitted and assist control is stopped. ( P. 501)
O If the space turns out to be too narrow after assist control
starts, a sharp beeping sound is emitted and assist control is
stopped.
When a beep sounds once
and the stop display ( P. 477)
is shown on the display, stop
the vehicle.
Change the shift position to R.
2
3
4

4985-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
When the Simple Intelligent Parking Assist System cannot be oper-
ated, or when operation is stopped, canceled, etc., the one of the fol-
lowing message is displayed on the multi-information display. Take
appropriate action according to the display.
QWhen it is not possible to operate
Multi-information display messages
MessageSituation/Handling method
The system may be malfunctioning.
Turn the power switch off and then start the
hybrid system.
Have the vehicle inspected by any authorized
Toyota retailer or Toyota authorized repairer,
or any reliable repairer if the message is dis-
played again.
There may be a system failure.
Power steering equipment is temporarily overheat-
ing.
Turn the power switch off, wait for a little
while, and then start the hybrid system again.
The hybrid system is not operating.
Start the hybrid system.
Ice, snow, dirt, etc., has adhered to the sensor.
Remove any ice, snow, dirt, etc.
The sensor is frozen.
Once the sensor thaws, the system will return
to normal.
The 12-volt battery has been removed and rein-
stalled.
Drive the vehicle straight ahead for 5 seconds
or more at a speed of approximately 35 km/h
(22 mph) or higher.
The S-IPA switch is operated when the vehicle
speed exceeds 30 km/h (19 mph).
Operate the switch when the vehicle speed is
approximately 30 km/h (19 mph) or less.

4995-5. Using the driving support systems
Prius Plug-in Hybrid_OM_OM47E75E_(EE)
5
Driving
Assist control is started while the steering wheel is
held.
Rest your hands on the steering wheel with-
out applying any force. Assist control will
start.
The vehicle is moved and assist control is started
while the steering wheel is held.
Stop the vehicle and follow the guidance pro-
vided by the system to start assist control.
The S-IPA switch is operated when there is not
enough space to the front and rear of the vehicle
when departing from a parallel parking spot.
The vehicle cannot depart using assist con-
trol as there is not enough space to the front
and rear of the vehicle. Confirm the safety of
your surroundings before departing.
The S-IPA switch is operated in an area where there
are no obstacles to the front of the vehicle, or there
are obstacles to the sides and the vehicle cannot
depart from the parallel parking spot.
Assist control cannot be used for departure,
as there are obstacles to the sides of the vehi-
cle or departure can easily be performed man-
ually. Confirm the safety of your surroundings
before departing.
The S-IPA switch is operated in an area with no
parking spaces, or operated in an area where the
road width for parking is narrow.
Assist control cannot be used, as there is no
parking space. Proceed to a parking space
which width is approximately 2.6 m (8.5 ft.) or
larger.
Assist control cannot be used, as the road
width is narrow. Proceed to a parking space
where the road width is approximately 4.5 m
(15 ft.) or larger.
MessageSituation/Handling method

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.