2021 TOYOTA PRIUS park assist

PRIUS_OM_OM47E09U_(U)
3894-5. Using the driving support systems
4
Driving
■Switching using the S-APGS switch
Press the switch
This allows you to switch func-
tions and cancel or restart assist
modes.
While the power switch is on, the vehicle speed is approximately
19 mph (30 km/h) or less, each time the S-APGS switch is pressed
the function switc hes as follows.
The selected function is indicated on the operation display are a of the
multi-information display. ( P. 390)
*: The back-in parking assist mode can be switched to when its op erating
conditions are met ( P. 408). When the operating conditions are not met,
it switches to off.
Switching assist mode
When the S-APGS switch is
pressed with the shift position
not in PWhen the S-APGS switch is
pressed with the shift position
in P
Back-in parking assist mode*
Parallel parking assist mode
Off
Exit parallel parking
assist mode Off

390
PRIUS_OM_OM47E09U_(U)
4-5. Using the driving support systems
The guidance screen is displayed on the multi-information display.
Assistance level indicator
Displays a gauge indicating the
level until the vehicle’s stopping
position/the position at which assist
control ends.
Stop display
When illuminated, depress the
brake pedal and stop the vehicle at
once.
Operation display area
Displays the operating condition of the Simple Advanced Parking Guid-
ance System.
Advice display
Follow the instructions on the display and perform any indicate d opera-
tions. As an example, the illustration shows the display indica ting it is nec-
essary to depress the brake pedal in order to control the vehicle speed and
to confirm the safety of your surroundings.
S-APGS switch icon
Displayed when the assist mode can be changed and the system ca n be
turned off or on using the S-APGS switch.
Steering wheel auto operation display
Displays when the steering wheel auto operation is being perfor med.
Intuitive parking assist display/door position (open/close) display
P. 363
■S-APGS indicator inside the meter (P. 111 )
This indicator illuminates when the steering wheel auto operation is being
performed by the Simple Advanced Parking Guidance System. After control
ends, the indicator blinks for a short period of time and then turns off.
■ Intuitive parking assist pop-up display
While the Simple Advanced Parking Guidance System is operating, if the
intuitive parking assist detects an obstacle, the intuitive parking assist display
automatically pops up on the guidance screen ( P. 363), regardless of
whether the intuitive parking assist is on or off. (P. 362)
Guidance screen
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PRIUS_OM_OM47E09U_(U)
3914-5. Using the driving support systems
4
Driving
Assist mode will be can celed or stopped in the following cases.
■Assist control is canceled when
●The system temperature pres ervation function operates
● There is a system malfunction
● System determined that the parki ng environment is not suitable
for assist to continue
When assist control is canceled, firmly grasp the steering wheel,
depress the brake pedal and stop the vehicle.
Start again from the beginning, as the system will already be c an-
celed. When continuing to park manually, operate the steering
wheel as you normally would.
■Assist control is stopped when
● The steering wheel is operated
● The vehicle speed exceeds 4 mph (7 km/h) during assist control
● The Parking Support Brake function operates
When assist control is stopped, it can be resumed by following the
guidance shown on the screen.
■ If the vehicle speed is about to exceed the speed limit during assist con-
trol
Canceling or stopping assist mode
A buzzer sounds and the message indi-
cating there is possibility that the vehicle
speed may exceed the speed limit.
When the message is displayed, immedi-
ately depress the brake pedal to deceler-
ate. If the vehicle continues to accelerate,
assist control will be canceled when the
vehicle speed exceeds a certain speed.
( P. 413)

392
PRIUS_OM_OM47E09U_(U)
4-5. Using the driving support systems
■Function summary
If a parking space can be detected, you will be guided forward until
you reach the assist control star ting position, and then the parallel
parking assist mode can be us ed. Furthermore, depending on the
parking space and other conditions, multi-turn maneuvering assi st
control is also prov ided if necessary.
Continue moving forward
with the vehicle parallel to
the curb or road, and stop so
that the center of the target
parking spot appears nearly
perpendicular to the vehicle.
Then press the S-APGS
switch 1 time to select the
parallel parking assist mode.
Travel straight ahead paral-
lel with the road or curb so
that the parking space is
detected.
A sound is issued and a display is shown to notify you when the
vehicle reaches a position wher e assist control can be used to
begin backing up from, and then when the shift position is
changed according to guidance provided by the system, steering
wheel auto oper ation begins.
If the detected parking space or road width (distance to the si de of the
road across from the parking space) is narrow, or if there are obstacles
in front of the vehicle, guidance will not be issued.
Parking is complete
This completes the assist mode. Depending on the condition of t he
parking space, guidance to starting points for moving forward and back-
ing up, as well as the steering wheel auto operation, are repea ted any
time multi-turn maneuvering is necessary following step from the
time the vehicle begins backing up until parking completes.
How to parallel park (paral lel parking assist mode)
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PRIUS_OM_OM47E09U_(U)
3954-5. Using the driving support systems
4
Driving
When a beep sounds once
and the stop display ( P. 3 9 0 )
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.
● When the steering wheel auto operation starts, the steering
wheel auto operation display ( P. 390) and assistance level
indicator ( P. 390) will be shown in the display area.
● To stop assist control, press the S-APGS 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 t o the rear and around the vehic le,
confirm that there are no obsta cles in the parking space, and
slowly back up while adjusting your speed by depressing the
brake pedal.
● When backing up too quickly, a sharp beeping sound is emit-
ted and assist cont rol is stopped. (P. 391)
● 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 .3
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12

PRIUS_OM_OM47E09U_(U)
3974-5. Using the driving support systems
4
Driving
When the vehicle is almost entire ly within the target parking spot,
a high-pitched beep is emitted and the stop display is shown on
the display, stop the vehicle.
This completes the para llel parking assist mode.
● After stopping, feel free to maneuver the vehicle to reach the
desired parking spot.
● Be sure to back up while checking the area to the front and
rear of the vehicle direct ly and by using the mirrors.
■Parallel parking assist mode operating conditions
●In order to operate the parallel parking assist mode correctly, drive slowly (at
a speed at which the vehicle can be quickly stopped) parallel t o the road (or
shoulder) while maintaining a distance of approximately 3.3 ft. (1 m) to any
parked vehicles.
● The function cannot be used when the vehicle speed is approxima tely
19 mph (30 km/h) or higher.
● The front side sensors and rear side sensors are used to detect parked
vehicles and determine the parking spot. Therefore, when detection is not
possible ( P. 419), guidance is not issued.
● If there are no parked vehicles, the parking spot cannot be det ermined.
Therefore, the parallel parking assist mode cannot be operated.
● If unable to detect the environment surrounding the parking spa ce, the par-
allel parking assist mode may not be able to operate.
● Guidance will continue until the vehicle speed meets or exceeds approxi-
mately 19 mph (30 km/h) or the function is turned off using the S -APGS
switch.
■ Timing for pressing the S-APGS switch
In the following cases, the assist mode may also operate during the steps
taken to park using the parallel parking assist mode. However, in these
cases, conduct parking procedures according to the information on the multi-
information display.
● In step the S-APGS switch is pressed after already passing ove r the tar-
get parking spot.
If the vehicle is not stopped in step , pressing the S-APGS swi tch 1 time
while the vehicle is in motion allows you to select “Parallel P arking” and
proceed directly to step .
● The vehicle is moved up to the position in step without the S- APGS
switch being pressed. Then the S-APGS switch is pressed after having
changed the shift position to R.
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398
PRIUS_OM_OM47E09U_(U)
4-5. Using the driving support systems
NOTICE
●If the road surface has any dips or inclines, the target parking spot cannot
be correctly set. Therefore, the vehicle may be parked at an an gle or may
deviate from the parking spot. In these cases, do not use the parallel park-
ing assist mode.
● When there is a wall or other obstacle on the inner side of the parking
space, or when another parked vehicle extends into the road fro m its park-
ing spot, the target parking spot may be set in a position that juts out
slightly into the road.
● Depending on the surrounding environment, such as other parked vehi-
cles, the vehicle may be parked at an angle or may deviate from the park-
ing spot. Manually adjust vehicle alignment as necessary.
● The system provides assistance to guide the vehicle based on po sition of
adjacent vehicles, even if there are obstacles, bumps, drops or curb
stones in the parking space.
If it seems the vehicle may make contact, stop the vehicle by d epressing
the brake pedal, and then press the S-APGS switch to turn off t he system.
● It may not be possible to detect objects that are low to the gr ound. 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 the other parked vehicle is nar-
row or parked extremely close to the
curb, assist control will also guide the
vehicle to a position close to the curb.
If it seems the vehicle may make con-
tact with the curb or any other obsta-
cles, or if it seems the tire position will
deviate from the intended parking spot,
stop the vehicle by depressing the
brake pedal, and then press the
S-APGS switch to turn off the system.

PRIUS_OM_OM47E09U_(U)
3994-5. Using the driving support systems
4
Driving
■Function summary
When departing from a parallel parking position, select the dir ection
you would like to depart in, and steering wheel operation assis t con-
trol will be provided to guide the vehicle to a position from w hich
you can take off.
With the shift position in P,
press the S-APGS switch,
select exit parallel parking
assist mode, and then oper-
ate the turn signal lever to
select the desired departure
direction.
Steering wheel auto opera-
tion starts when the shift
position is changed accord-
ing to guidance provided by
the system.
A sound is issued and a display is shown to notify you when the
vehicle reaches a position fr om which you can take off.
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 from the time the steering wheel auto operation begins in step
up until the vehicle reaches a position from which it can take off.
How to depart from a parallel parking position (exit parallel park-
ing assist mode)
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