steering TOYOTA PRIUS 2023 Repair Manual

4204-5. Using the driving support systems
PRIUS_OM_OM47F32E_(EE)
When a beep sounds once
and the stop display ( P. 409)
is shown on the display, stop
the vehicle.
Change the shift position to D.
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 departure cannot be accomplished on the first try and
multi-turn maneuvering is necessary, proceed to step .
● When multi-turn maneuvering is not necessary, proceed to
step ( P. 422).
When a beep sounds once
and the stop display ( P. 409)
is shown on the display, stop
the vehicle.
Change the shift position to R.
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4214-5. Using the driving support systems
4
Driving
PRIUS_OM_OM47F32E_(EE)
Assume an ordinary posture for backing up, rest your hands
lightly on the steering wheel without applying any force, directly
confirm the safety of the area to the rear and around the vehicle
and slowly back up while adjusting your speed by depressing the
brake pedal.
Depending on the condition of the parking space, steps to may
need to be repeated.
When a beep sounds once
and the stop display ( P. 409)
is shown on the display, stop
the vehicle.
Change the shift position to D.
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.
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4224-5. Using the driving support systems
PRIUS_OM_OM47F32E_(EE)
When the vehicle has nearly
reached the take-off point, a
high-pitched beep is emitted
and assist control finishes.
From there, grasp the steer-
ing wheel and proceed for-
ward.
■ Exit parallel parking assist mode
● During assist control, if the driver determines that they are at a position
where take-off is possible and operates the steering wheel, assist control is
stopped at that position.
● Assist control cannot be used if there are no parked vehicles ahead, or if the
gap between the front of your vehicle and the vehicle parked ahead is too
large.
● When using the exit parallel parking assist mode, the assist mode may not
be able to operate depending on the surrounding environment.
14
NOTICE
● The detection range of the sensors (P. 386) is limited. Directly confirm
the safety of your surroundings, and if there is a possibility of a contact
accident, stop the vehicle by depressing the brake pedal.
● It may not be possible to detect objects that are low to the ground. Directly
confirm the safety of your surroundings and, if it seems the vehicle may
make contact with an obstacle, stop the vehicle by depressing the brake
pedal.
● When departing for a position from which you can take off, directly confirm
the safety of your surroundings.

4234-5. Using the driving support systems
4
Driving
PRIUS_OM_OM47F32E_(EE)
■Function summary
Stop so that the center of the target parking spot appears nearly
perpendicular to the vehicle. If the space is detectable, the forward
guidance function can be used. Furthermore, depending on the
parking space and other conditions, multi-turn maneuvering assist
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 starting
points for moving forward and backing up, as well as the steering wheel
auto operation, are repeated any time multi-turn maneuvering is neces-
sary following step from the time the vehicle begins backing up until
parking completes.
How to park next to other vehicles (back-in parking assist mode)
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4244-5. Using the driving support systems
PRIUS_OM_OM47F32E_(EE)
■Parking
Stop so that the center of the
target parking spot appears
nearly perpendicular to vehi-
cle. Then press the S-IPA
switch 2 times and check that
the display on the multi-infor-
mation display switches to
“Back-in Parking”.
● Visually check the area in
the direction of the arrow
indicating the direction of
the steering wheel auto
operation and the target
parking spot on the dis-
play.
● The mode switches each
time the S-IPA switch is
pressed. ( P. 408)
● When the shift position is not in D or B, the screen will not
switch to the “Back-in Parking” display.
● When the vehicle speed has been detected, the screen
switches to the “Parallel Parking” display. To switch the screen
to the “Back-in Parking” display, stop the vehicle completely
and press the S-IPA switch again.
● The turn signal lever (P. 259) can be operated to select
whether you would like to park to the left or right.
● The system cannot be used when the parking space is narrow
or there is not a sufficient enough area for assist control to
operate. Please refer to the information shown on the multi-
information display to use a different parking space.
1 m
(3.3 ft.)
1

4254-5. Using the driving support systems
4
Driving
PRIUS_OM_OM47F32E_(EE)
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.
● When the steering wheel auto operation starts, the steering
wheel auto operation display ( P. 409) and assistance level
indicator ( P. 409) will be shown in the display area.
● To stop assist control, press the S-IPA switch.
● When the vehicle speed is too high, a sharp beeping sound is
emitted and assist control is stopped. ( P. 410)
● 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. 409)
is shown on the display, stop
the vehicle.
Change the shift position to R.
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4264-5. Using the driving support systems
PRIUS_OM_OM47F32E_(EE)
Assume an ordinary posture for backing up, rest your hands
lightly on the steering wheel without applying any force, directly
confirm the safety of the area to the rear and around the vehicle,
confirm that there are no obstacles in the parking space, and
slowly back up while adjusting your speed by depressing the
brake pedal.
● 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 . ( P. 427)
When a beep sounds once
and the stop display ( P. 409)
is shown on the display, stop
the vehicle.
Change the shift position to D.
When you would like to end assist control at your current position,
change the shift position to P.
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 a beep sounds once
and the stop display ( P. 409)
is shown on the display, stop
the vehicle.
Change the shift position to R.
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4274-5. Using the driving support systems
4
Driving
PRIUS_OM_OM47F32E_(EE)
Assume an ordinary posture for backing up, rest your hands
lightly on the steering wheel without applying any force, directly
confirm the safety of the area to the rear and around the vehicle
slowly back up while adjusting your speed by depressing the
brake pedal.
Depending on the condition of the parking space, steps to may
need to be repeated.
When the vehicle is almost entirely within the target parking spot,
a high-pitched beep is emitted and the stop display is shown on
the display (P. 409), stop the vehicle.
This completes the back-in parking assist mode.
●For safety, the buzzer sounds slightly before the vehicle is
completely entered within the target parking spot. Further-
more, at that point, system operation will also finish. Firmly
hold the steering wheel and slowly back up while adjusting
your speed by depressing the brake pedal to reach the desired
parking spot.
●Be sure to back up while checking the area to the front and
rear of the vehicle directly and by using the mirrors.
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4304-5. Using the driving support systems
PRIUS_OM_OM47F32E_(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.
■When 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.

4314-5. Using the driving support systems
4
Driving
PRIUS_OM_OM47F32E_(EE)
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