Page 465 of 808
PRIUS PRIME_OM_OM47E74U_(U)
4655-5. Using the driving support systems
5
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. 466)
*: The back-in parking assist mode can be switched to when its op erating
conditions are met ( P. 484). When the operating conditions are not met,
it switches to off.
Switching assist mode
IO55PH104
When the S-APGS switch is
pressed with the shift position
not in PWhen 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
Page 466 of 808

466
PRIUS PRIME_OM_OM47E74U_(U)
5-5. 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. 442
■S-APGS indicator inside the meter (P. 205)
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. 442), regardless of
whether the intuitive parking assist is on or off. (P. 441)
Guidance screen
1
2
3
4
5
6
7
Page 467 of 808

PRIUS PRIME_OM_OM47E74U_(U)
4675-5. Using the driving support systems
5
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. 489)
Page 468 of 808

468
PRIUS PRIME_OM_OM47E74U_(U)
5-5. 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)
1
2
3
4
3
Page 469 of 808
PRIUS PRIME_OM_OM47E74U_(U)
4695-5. Using the driving support systems
5
Driving
■Parking
Stop so that the center of the target parking spot appears near ly
perpendicular to vehicle. Then press the S-APGS switch 1 time
and check that the display on the multi-information display
switches to “Parallel Parking”.
● The mode switches each time the S-APGS switch is pressed.
( P. 465)
● When the vehicle speed is approximately 19 mph (30 km/h) or
higher, pressing the S-APGS switch will not cause the screen
to switch to the “Paral lel Parking” display.
1
Page 470 of 808
470
PRIUS PRIME_OM_OM47E74U_(U)
5-5. Using the driving support systems
Travel straight ahead paral-
lel with the road (or curb),
and maintain a gap of
approximately 3.3 ft. (1 m)
from any parked vehicles.
●Proceed slowly.
● The system will begin
searching for a parking
space.
● While searching for a
space, the turn signal lever
( P. 345) can be operated
to select a parking space
on the left or right.
● When stopping the func-
tion, press the S-APGS
switch once to turn the
function off.
● When a parking space is
detected, the screen will
change.2
3.3 ft.
(1 m)
Page 471 of 808

PRIUS PRIME_OM_OM47E74U_(U)
4715-5. Using the driving support systems
5
Driving
When a beep sounds once
and the stop display ( P. 4 6 6 )
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. 466) and assistance level
indicator ( P. 466) 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. 489)
● 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
4
5
6
12
Page 472 of 808
472
PRIUS PRIME_OM_OM47E74U_(U)
5-5. Using the driving support systems
When a beep sounds once
and the stop display ( P. 4 6 6 )
is shown on the display, stop
the vehicle.
Change the shift position to D.
Assume an ordinary driving postu re, 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. 466) is
shown on the display, stop the vehicle.
Change the shift position to R.
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 adjust ing your speed by depressing the
brake pedal.
Depending on the condition of the parking space, steps to may
need to be repeated.
6
7
8
9
10
11
611