
448
PRIUS PRIME_OM_OM47D13U_(U)
5-5. Using the driving support systems
●Influence from other sonic waves
• An ultrasonic wave source is nearby, such as the horn or parki ng assist
system of another vehicle, a vehicle detector, a motorcycle eng ine or the
air brake of a large vehicle
• Electronic components (such as a backlit license plate (especially fluo- rescent types), fog lights, a fender pole or a wireless antenna ) are
installed near the sensors
● Changes in the vehicle
• The vehicle is tilted a large amount
• The height of the vehicle has drastically changed due to the c arried load
(the nose tilts up or down)
• The direction of the sensor has deviated due to a collision or other impact
■ Intelligent Clearance Sonar function while the Simple Advanced Parking
Guidance System is operating
P. 453
■ When removing and instal ling the 12-volt battery
The system needs to be initialized.
The system can be initialized by driving the vehicle straight a head for 5 sec-
onds or more at a speed of approximately 22 mph (35 km/h) or hi gher.
■ When “ICS Unavailable” is displ ayed on the multi-information display
and the ICS OFF indicator flashes
● Ice, snow, dirt, etc., may have adhered to the sensor. If this occurs, remove
the ice, snow, dirt, etc., from the sensor to return the system to normal.
Also, a warning message may be displayed at low temperatures du e to ice
forming on the sensor, and the sensor may not detect obstacles. Once the
ice melts, the system will return to normal.
● If this message is shown even after removing dirt from the sensor, or shown
when the sensor was not dirty to begin with, have the vehicle i nspected at
your Toyota dealer.
● System initialization may not have been performed after removal and instal-
lation of the 12-volt battery. Perform system initialization.
■ When “ICS Malfunction Visit Yo ur Dealer” is displayed on the mu lti-infor-
mation display, the ICS OFF indi cator flashes and the buzzer sounds
The system may not be operating properly. Have the vehicle inspected at
your Toyota dealer.

451
PRIUS PRIME_OM_OM47D13U_(U)
5-5. Using the driving support systems
5
Driving
S-APGS (Simple Adva nced Parking Guidance
System)
■Function summary
The Simple Advanced Parking Guidance System automatically
operates the steering wheel to provide support when backing int o
an area near a target parking spot, and when departing from a p ar-
allel parking spot. (Changing the shift position and speed adju st-
ment when moving forward or backing up are not performed
automatically.)
● The Simple Advanced Parking Guidance System does not park
the vehicle automatically. It is a system that provides support
when pulling out of a perpendicular or parallel parking spot.
● The Simple Advanced Parking Guidance System provides steer-
ing wheel operation assistance to guide the vehicle toward the
selected intended parking spot. The selected intended parking
spot may not always be reach able, depending on road and vehi-
cle conditions at the time of parking, and the distance to the
intended parking spot.
■Linking with the Intelligen t Clearance Sonar function
While the Simple Advanced Parking Guidance System is operating,
if the system detects an obstacl e that could result in a collision, the
emergency brakes operate, regardless of whether the Intelligent
Clearance Sonar function is on or off. ( P. 453)
: If equipped
Simple Advanced Parking Guidance System
WARNING
●When backing up or proceeding forward, be sure to directly conf irm the
safety of the area to the front or rear, and the area around the vehicle, and
slowly back up or proceed forward while adjusting the vehicle s peed by
depressing the brake pedal.
● If it seems the vehicle may make contact with a pedestrian, ano ther vehi-
cle or any other obstacles, stop the vehicle by depressing the brake pedal,
and then press the S-APGS switch ( P. 454) to turn the system off.

452
PRIUS PRIME_OM_OM47D13U_(U)
5-5. Using the driving support systems
Chart of Simple Advanced Parking Guidance System assist
modes and functions
Assist modeType of
parkingFunction summarySee page
Parallel parking
assist modeParallel park-
ing
Guidance is provided to
detect the intended
parking spot and reach a
position to begin back-
ing up from. Assistance
is provided from when
the vehicle begins back-
ing up until it reaches
the intended parking
spot.
P. 457
Exit parallel park-
ing assist modeExit parallel
parking
Assistance starts after
the vehicle has been
parallel parked. Assis-
tance is provided to
guide the vehicle from
the parking space to a
position from which it
can take off.
P. 464
Back-in parking
assist mode
(with forward guid-
ance function)
Back-in park-
ing
Assistance starts after
stopping the vehicle in
front of the intended
parking spot, and is pro-
vided for backing into a
parking space, including
guidance to reach a
position to begin back-
ing up from.
P. 469

PRIUS PRIME_OM_OM47D13U_(U)
4535-5. Using the driving support systems
5
Driving
■Intelligent Clearance Sonar function while the Simple Advanced Parking
Guidance System is operating
While the Simple Advanced Parking Guidance System is operating, if the sys-
tem detects an obstacle that could result in a collision, hybri d system output
restriction control and brake control of the Intelligent Cleara nce Sonar func-
tion are operated, regardless of whether the Intelligent Clearance Sonar func-
tion is on or off. ( P. 440)
● After the Intelligent Clearance Sonar function operates, operat ion of the
Simple Advanced Parking Guidance System is temporarily stopped, and
operation of the Intelligent Clearance Sonar function is indica ted on the
multi-information display. ( P. 444)
● When operation of the Simple Advanced Parking Guidance System i s
stopped 3 times by operation of the Intelligent Clearance Sonar function, the
Simple Advanced Parking Guidance System is canceled.
● Once the Simple Advanced Parking Guidance System becomes availa ble
after the Intelligent Clearance Sonar function is operated, a m essage
prompting you to shift is displayed on the multi-information di splay. Opera-
tion of the Simple Advanced Parking Guidance System can be resu med by
shifting according to the prompt on the multi-information display and press-
ing the S-APGS switch ( P. 454) again.
■ Shifting while the Simple Advanced Parking Guidance System is operat-
ing
If the system determines that the drivers intends to move forward or in
reverse, assistance continues even if the drivers shifted before being
prompted to do so by the system. However, because driver operat ion differs
from the guidance provided by the system, the number of turning maneuvers
may increase.
■ Customization
Settings (e.g. Obstacle detection range) can be changed.
(Customizable features: P. 739)

454
PRIUS PRIME_OM_OM47D13U_(U)
5-5. Using the driving support systems
■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. 455).
*: The back-in parking assist mode can be switched to when its op erating
conditions are met ( P. 473). 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

PRIUS PRIME_OM_OM47D13U_(U)
4555-5. Using the driving support systems
5
Driving
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. 430
■S-APGS indicator inside the meter (P. 200)
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. 430), regardless of
whether the intuitive parking assist is on or off. (P. 429)
Guidance screen
1
2
3
4
5
6
7

456
PRIUS PRIME_OM_OM47D13U_(U)
5-5. Using the driving support systems
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 Intelligent Clearance Sonar 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. 478)

PRIUS PRIME_OM_OM47D13U_(U)
4575-5. Using the driving support systems
5
Driving
■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