Toyota Prius Prime (2022 year). Manual in english — page 30
481
5-5. Using the driving support systems
5
Drivin
■
Parking
Stop so that the center of the
target parking spot appears
nearly perpendicular to vehi-
cle. Then press the S-APGS
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-APGS switch is
pressed. (
●
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-APGS switch again.
●
The turn signal lever (
P. 345) 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.
3.3 ft.
(1 m)
1
482
5-5. 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. 466) and assistance level
indicator (
P. 466) 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 control is stopped. (
●
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. 466) is
shown on the display, stop the
vehicle.
Change the shift position to R.
2
3
4
483
5-5. Using the driving support systems
5
Drivin
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
. (
When a beep sounds once and
the stop display (
P. 466) 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 (
is shown on the display, stop
the vehicle.
Change the shift position to R.
5
6
12
6
7
8
9
10
484
5-5. Using the driving support systems
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. 466), 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.
■
Back-in parking assist mode operating conditions
●
In order to operate the function correctly, drive slowly (at a speed at which
the vehicle can be quickly stopped).
●
In order to operate the function correctly, drive slowly (at a speed at which
the vehicle can be quickly stopped). Come to a full stop so that the center of
the parking space is nearly perpendicular to the vehicle, and then operate
the S-APGS switch.
●
The function cannot be used when the vehicle speed is approximately
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. 495), guidance is not issued.
●
If there are no parked vehicles, the parking spot cannot be determined.
Therefore, the back-in parking assist mode cannot be operated.
●
If unable to detect the environment surrounding the parking space, the
back-in parking assist mode may not be able to operate.
11
6
11
12
485
5-5. Using the driving support systems
5
D
■
Tips for using the back-in parking assist mode
●
Depending on the condition of the park-
ing space, if there is not enough space
in front of the vehicle required to perform
the parking operation, the target parking
spot may not be reachable.
Intended parking spot
Wall
●
Leave a gap of approximately 3.3 ft. (1
m) from any parked vehicles and
approach the target parking spot. If the
gap between your vehicle and any
parked vehicles is too large, the front
side sensors and rear side sensors may
not be able to detect the parked vehi-
cles.
●
Stop so that the center of the target
parking spot is perpendicular to the vehi-
cle. Furthermore, only push the S-APGS
switch when the vehicle is at a complete
stop.
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 angle or may
deviate from the parking spot. In these cases, do not use the back-in park-
ing assist mode.
●
When parking in a narrow space, the vehicle will come close to adjacent
vehicles. If it seems the vehicle may make contact, 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.
●
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.
1
2
3.3 ft.
(1 m)
486
5-5. Using the driving support systems
When the Simple Advanced Parking 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 according to the display.
■
When it is not possible to operate
Multi-information display messages
Message
Situation/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.
487
5-5. Using the driving support systems
5
Drivin
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 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-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.
Message
Situation/Handling method
488
5-5. Using the driving support systems
■
When the operation is canceled
The S-APGS switch is operated in an area where
there are obstacles to the front, and the vehicle can-
not move forward to the starting point for backing
up.
Assist control cannot be used, as there are
obstacles in front of the vehicle. Use parking
spaces that have no obstacles in front of
them.
Message
Situation/Handling method
Message
Situation/Handling method
While assist control is operating, the driver changes
the shift position to P or operates the S-APGS
switch.
The vehicle speed exceeds 19 mph (30 km/h) when
searching for a parallel parking assist mode space.
Assist control is started in an area with narrow park-
ing spaces.
The shift position is changed without having used
the turn signal lever to select a departure direction
when using the exit parallel parking assist mode.
Follow the guidance provided by the system.
When assist control starts, the vehicle proceeds in a
direction opposite to the guidance.
Follow the guidance provided by the system
to proceed forward.
489
5-5. Using the driving support systems
5
Drivin
■
When the operation is suspended
The maximum number of movements for multi-turn
maneuvering is reached during assist control, or the
target parking spot cannot be reached due to the
control being used on a road with steep grade.
Follow the assist control guidance and use
the system in a wide space that does not have
a steep grade.
Message
Situation/Handling method
Message
Situation/Handling method
The driver holds the
steering wheel during
assist control.
Stop the vehicle and
rest your hands on the
steering wheel without
applying
any
force.
Then press the S-APGS
switch to restart assist
control.
The vehicle speed
exceeds
4
mph
(7 km/h) during assist
control.
The S-APGS switch
is
pressed
while
assist control is tem-
porarily stopped and
the steering wheel is
firmly held.
Rest your hands on the
steering wheel without
applying
any
force.
Then stop the vehicle to
restart assist control.
The S-APGS switch
is
pressed
while
assist control is tem-
porarily stopped and
the vehicle is moving.
Assist control is tem-
porarily
stopped
(able to be restarted)
Stop the vehicle and
rest your hands on the
steering wheel without
applying
any
force.
Then press the S-APGS
switch to restart assist
control.
490
5-5. Using the driving support systems
The vehicle moved
too close to an obsta-
cle in front of the
vehicle.
Press
the
S-APGS
switch after changing
the shift position to R to
restart assist control.
The vehicle moved
too close to an obsta-
cle to the rear of the
vehicle.
Press
the
S-APGS
switch after changing
the shift position to D to
restart assist control.
Message
Situation/Handling method
491
5-5. Using the driving support systems
5
Drivin
■
Sensors
Detect the vehicle to help determine the parking spot.
Front side sensors
Rear side sensors
Precautions during use
1
2
●
The sensor detection range when using
back-in parking assist mode
Intended parking spot
●
The sensor detection range when using
parallel parking assist mode
Intended parking spot
1
1
492
5-5. Using the driving support systems
●
When there is a parked vehicle behind the target parking spot, it may not be
detected due to the distance. Also, depending on the shape of the vehicle
and other conditions, the detectable range may shorten or detection may
not be possible.
●
The Simple Advanced Parking Guidance System may not operate if grating,
diamond plates or similar materials are detected on the surface of the park-
ing space.
●
Objects other than parked vehicles, such
as poles and walls, may not be detected.
Also, even if these objects can be
detected, the target parking spot may
deviate.
Poles
Wall
●
Also, the target parking spot may devi-
ate when a pedestrian, etc. is detected.
Pedestrian
1
2
1
493
5-5. Using the driving support systems
5
D
WARNING
●
Do not rely solely upon the Simple Advanced Parking Guidance System.
As with unequipped vehicles, move forward and back up carefully while
directly confirming the safety of your surroundings and the area to the rear
of the vehicle.
●
Do not back up while viewing the multi-information display. Backing up
while only viewing the monitor screen may cause a collision or lead to an
accident, as the image displayed on the monitor screen may differ from
actual conditions. Make sure to visually check the surrounding areas and
the area to the rear of the vehicle with and without the mirror while backing
up.
●
Drive slowly while adjusting your speed by depressing the brake pedal
when backing up or moving forward.
●
If it seems the vehicle may make contact with a pedestrian, another vehi-
cle or any other obstacles, stop the vehicle by depressing the brake pedal,
and then press the S-APGS switch to turn off the system.
●
Use the system in a parking lot with a flat surface.
●
Observe the following precautions, as the steering wheel automatically
turns during use.
• There is risk of a necktie, scarf, your arm, etc. being caught on the
steering wheel. Please do not allow your upper body to be close to the
steering wheel. Also, do not allow children close to the steering wheel.
• There is a possibility of injury when the steering wheel turns if you have
long fingernails.
• In case of emergency, stop the vehicle by depressing the brake pedal,
and then press the S-APGS switch to turn off the system.
●
Always confirm that there is appropriate space before attempting to park
the vehicle and operate the system.
494
5-5. Using the driving support systems
WARNING
●
Do not use the system in the following situations, as the system may be
unable to correctly assist you in reaching the target parking spot and may
lead to an unexpected accident.
• In an area that is not a parking lot
• A parking lot that is not paved and has no parking space lines, such as
a sand or gravel parking lot
• A parking lot that has a slope or undulations in the road
• A frozen, snow-covered or slippery road
• The asphalt is melting due to hot weather
• There is an obstacle between the vehicle and the target parking spot
• Using tire chains
●
Do not use tire other than that provided by the manufacturer. The system
may not operate properly. When replacing tires, contact your Toyota
dealer.
●
The system may not be able position the vehicle in the set location in the
following situations.
• The tires are extremely worn or the tire pressure is low
• The vehicle is carrying very heavy load
• The vehicle is tilted due to having luggage, etc. located on one side of
the vehicle
• There are road heaters installed in the parking lot to prevent the road
surface from freezing.
In any other situations when the set position and vehicle position greatly
differ, have the vehicle inspected by your Toyota dealer.
●
Make sure to observe the following precautions regarding the exit parallel
parking assist mode.
Exit parallel parking assist mode is a function used when departing from a
parallel parking spot. However, this function may not be usable if obsta-
cles or people are detected in front of the vehicle. Only use this function
when departing from a parallel parking spot. In the event that the steering
control operates, either turn the system off using the S-APGS switch or
operate the steering wheel to stop the control.
●
If exit parallel parking assist mode is mistakenly used in the following situ-
ations, the vehicle may make contact with an obstacle.
The departure function is operated in a direction where an obstacle is
present, but the obstacle is not detected by the side sensors (situations
such as when the vehicle is directly beside a pole).
495
5-5. Using the driving support systems
5
D
WARNING
●
Observe the following precautions, as the sensors may stop functioning
properly which may lead to an accident.
• Do not subject the sensor to strong shocks by hitting it, etc. The sen-
sors may not function properly.
• When using a high-pressure washer to wash the vehicle, do not spray
water directly on the sensors. Equipment may not function properly if
subjected to an impact from strong water pressure. If the vehicle
bumper strikes something, equipment may not operate properly due to
a sensor malfunction. Have the vehicle inspected at your Toyota dealer.
●
In the following situations, the sensors may not operate normally and may
lead to an accident. Drive carefully.
• Obstacles cannot be detected in the side areas until a scan of the side
areas is completed. (
• Even after the scan of the side areas is completed, obstacles such as
other vehicles, people or animals that approach from the sides cannot
be detected.
• The sensor is frozen (if it thaws, the system returns to normal).
A warning message may display at particularly low temperatures due to
the sensor freezing and it may not detect parked vehicles.
• The sensor is blocked by someone’s hand.
• The vehicle is tilted a large amount.
• The temperature is extremely hot or cold.
• The vehicle is driven on undulating roads, slopes, gravel roads, in areas
with tall grass, etc.
• An ultrasonic wave source is nearby, such as the horn or sensors of
another vehicle, a motorcycle engine or the air brake of a large vehicle.
• Heavy rain or a water strikes the vehicle.
• The angle of the sensor may be deviated when assist control starts
even if there is a parked vehicle in the target parking spot. Have the
vehicle inspected at your Toyota dealer.
• Do not install any accessories within the sensor detection range.
496
5-5. Using the driving support systems
Driving assist systems
◆
ECB (Electronically Controlled Brake System)
The electronically controlled system generates braking force corre-
sponding to the brake operation
◆
ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly,
or if the brakes are applied while driving on a slippery road surface
◆
Brake assist
Generates an increased level of braking force after the brake pedal
is depressed when the system detects a panic stop situation
◆
VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or
turning on slippery road surfaces.
◆
Enhanced VSC (Enhanced Vehicle Stability Control)
Provides cooperative control of the ABS, TRAC, VSC and EPS.
Helps to maintain directional stability when swerving on slippery
road surfaces by controlling steering performance.
◆
TRAC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from
spinning when starting the vehicle or accelerating on slippery roads
To keep driving safety and performance, the following systems
operate automatically in response to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heavily when operating the vehi-
cle.
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