2021 TOYOTA PRIUS stop start

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)
1
2
3
4
3

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
4
5
6
12

400
PRIUS_OM_OM47E09U_(U)
4-5. Using the driving support systems
■Using the exit parallel par king assist mode to depart
With the shift position in P, press the S-APGS switch and check
that the display on the multi-information display switches to “ Exit
Parallel Parking”.
Operate the turn signal lever ( P. 261) to select whether you
would like to depart t o the left or right.
If there are any obstacles in the direction the vehicle is departing 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. 390), 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.
● 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 to the rear and around the vehic le
and slowly back up while adjust ing 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)
1
2
3
4
4

404
PRIUS_OM_OM47E09U_(U)
4-5. Using the driving support systems
■Function 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 prov ided if necessary.
Stop so that the center of the
target parking spot appears
nearly perpendicular to the
vehicle. Then press the
S-APGS 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 up until
parking completes.
How to park next to other vehicl es (back-in parking assist mode )
1
2
3
4
3

406
PRIUS_OM_OM47E09U_(U)
4-5. Using the driving support systems
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. 390) and assistance level
indicator ( P. 390) will be shown in the display area.
● To stop assist control, press the S-APGS switch.
● When the vehicle speed is too high, a sharp beeping sound is
emitted and assist c ontrol is stopped. (P. 391)
● 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. 3 9 0 )
is shown on the display, stop
the vehicle.
Change the shift position to R.2
3
4

410
PRIUS_OM_OM47E09U_(U)
4-5. Using the driving support systems
When the Simple Advanced Park ing Guidance System cannot be
operated, or when operation is stopped, canceled, etc., the one of the
following message is displayed on the multi-information display . Take
appropriate action acc ording 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 your Toyota
dealer if the message is displayed 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 22 mph
(35 km/h) or higher.
The S-APGS switch is operated when the vehicle
speed exceeds 19 mph (30 km/h).
Operate the switch when the vehicle speed is
approximately 19 mph (30 km/h) or less.
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.

PRIUS_OM_OM47E09U_(U)
4114-5. Using the driving support systems
4
Driving
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-APGS 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 depa rt 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-APGS 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 can-
not 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-APGS 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 8.5 ft. (2.6 m) or
larger.
 Assist control cannot be used, as the road
width is narrow. Proceed to a parking space
where the road width is approximately 15 ft.
(4.5 m) or larger.
The S-APGS switch is operated at a space that is
too narrow for the vehicle to park in.
Assist control cannot be used, as there is no
parking space. Proceed to a parking space
that is approximately 8.5 ft. (2.6 m) or larger.
MessageSituation/Handling method