Get Using the driving support systems -> S-APGS (Simple Advanced Parking Guidance System) Guide for Toyota Prius 4 Door Fourth Generation (2016-2022)

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4-5. Using the driving support systems

S-APGS (Simple Advanced Parking Guidance



System)

Simple Advanced Parking Guidance System

■ Function summary

The Simple Advanced Parking Guidance System automatically

operates the steering wheel to provide support when backing into

an area near a target parking spot, and when departing from a par-

allel parking spot. (Changing the shift position and speed adjust-

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 reachable, depending on road and vehi-

cle conditions at the time of parking, and the distance to the

intended parking spot.

■ Linking with the Parking Support Brake function

While the Simple Advanced Parking Guidance System is operating,

if the system detects an obstacle that could result in a collision, the

emergency brakes operate, regardless of whether the Parking Sup-

port Brake function is on or off. (P. 376)

WARNING

●When backing up or proceeding forward, be sure to directly confirm 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 speed by

depressing the brake pedal.

●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 (P. 377) to turn the system off.

: If equipped

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Chart of Simple Advanced Parking Guidance System assist

modes and functions

Type of

parking

Assist mode

Function summary

See page

Guidance is provided to

detect the intended

parking spot and reach a

position to begin back-

Parallel parking

assist mode

Parallel park- ing up from. Assistance

P. 380

ing

is provided from when

the vehicle begins back-

ing up until it reaches

the intended parking

spot.

Assistance starts after

the vehicle has been

parallel parked. Assis-

4

Exit parallel parking Exit parallel tance is provided to

P. 387

assist mode

parking

guide the vehicle from

the parking space to a

position from which it

can take off.

Assistance starts after

stopping the vehicle in

front of the intended

parking spot, and is pro-

vided for backing into a

parking space, including

Back-in parking

assist mode

(with forward guid-

ance function)

Back-in park-

ing

P. 392

guidance to reach

a

position to begin back-

ing up from.

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■Parking Support Brake 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, hybrid system output

restriction control and brake control of the Parking Support Brake function are

operated, regardless of whether the Parking Support Brake function is on or

off. (P. 363)

●After the Parking Support Brake function operates, operation of the Simple

Advanced Parking Guidance System is temporarily stopped, and operation

of the Parking Support Brake function is indicated on the multi-information

display. (P. 367)

●When operation of the Simple Advanced Parking Guidance System is

stopped 3 times by operation of the Parking Support Brake function, the

Simple Advanced Parking Guidance System is canceled.

●Once the Simple Advanced Parking Guidance System becomes available

after the Parking Support Brake function is operated, a message prompting

you to shift is displayed on the multi-information display. Operation of the

Simple Advanced Parking Guidance System can be resumed by shifting

according to the prompt on the multi-information display and pressing the

S-APGS switch (P. 377) 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 operation 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 fea-

tures: P. 678)

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Switching assist mode

■ 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 switches as follows.

The selected function is indicated on the operation display area of the

multi-information display. (P. 378)

4

 When the S-APGS switch is  When the S-APGS switch is

pressed with the shift position

not in P

pressed with the shift position

in P

Parallel parking assist mode

Back-in parking assist mode*

Off

Exit parallel parking

assist mode

Off

*: The back-in parking assist mode can be switched to when its operating

conditions are met (P. 396). When the operating conditions are not met,

it switches to off.

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Guidance screen

The guidance screen is displayed on the multi-information display.

1

Assistance level indicator

Displays a gauge indicating the

level until the vehicle’s stopping

position/the position at which assist

control ends.

2

Stop display

When illuminated, depress the

brake pedal and stop the vehicle at

once.

3

4

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 indicated opera-

tions. As an example, the illustration shows the display indicating it is nec-

essary to depress the brake pedal in order to control the vehicle speed and

to confirm the safety of your surroundings.

5

S-APGS switch icon

Displayed when the assist mode can be changed and the system can be

turned off or on using the S-APGS switch.

6

7

Steering wheel auto operation display

Displays when the steering wheel auto operation is being performed.

Intuitive parking assist display/door position (open/close) display

P. 351

■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. 351), regardless of

whether the intuitive parking assist is on or off. (P. 350)

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Canceling or stopping assist mode

Assist mode will be canceled or stopped in the following cases.

■ Assist control is canceled when

● The system temperature preservation function operates

● There is a system malfunction

● System determined that the parking 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 can-

celed. When continuing to park manually, operate the steering

wheel as you normally would.

■ Assist control is stopped when

4

● 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

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. 401)

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How to parallel park (parallel parking assist mode)

■ Function summary

If a parking space can be detected, you will be guided forward until

you reach the assist control starting position, and then the parallel

parking assist mode can be used. Furthermore, depending on the

parking space and other conditions, multi-turn maneuvering assist

control is also provided if necessary.

1

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.

2

3

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 where 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 operation begins.

If the detected parking space or road width (distance to the side 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.

4

Parking is complete

This completes the assist mode. Depending on the condition of the

parking space, guidance to starting points for moving forward and back-

ing up, as well as the steering wheel auto operation, are repeated any

3

time multi-turn maneuvering is necessary following step

time the vehicle begins backing up until parking completes.

from the

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■ Parking

1

Stop so that the center of the target parking spot appears nearly

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. 377)

● 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 “Parallel Parking” display.

4

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2

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.

3.3 ft.

(1 m)

● While searching for

a

space, the turn signal lever

(P. 257) 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.

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3

When a beep sounds once

and the stop display (P. 378)

is shown on the display, stop

the vehicle.

4

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. 378) and assistance level

indicator (P. 378) will be shown in the display area.

● To stop assist control, press the S-APGS switch.

4

5

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 backing up too quickly, a sharp beeping sound is emit-

ted and assist control is stopped. (P. 379)

● When the vehicle cannot be cleanly entered within the target

parking spot on the first try and multi-turn maneuvering is nec-

6

essary, proceed to step

.

When multi-turn maneuvering is not necessary, proceed to

12

step

.

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6

When a beep sounds once

and the stop display (P. 378)

is shown on the display, stop

the vehicle.

7

8

Change the shift position to D.

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.

9

When a beep sounds once and the stop display (P. 378) is

shown on the display, stop the vehicle.

10

11

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, directly

confirm the safety of the area to the rear and around the vehicle

and slowly back up while adjusting your speed by depressing the

brake pedal.

6

11

Depending on the condition of the parking space, steps

need to be repeated.

to

may

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12

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, stop the vehicle.

This completes the parallel 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 directly 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 to 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 approximately

19 mph (30 km/h) or higher.

4

●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. 407), guidance is not issued.

●If there are no parked vehicles, the parking spot cannot be determined.

Therefore, the parallel parking assist mode cannot be operated.

●If unable to detect the environment surrounding the parking space, 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.

1

●In step

the S-APGS switch is pressed after already passing over the tar-

get parking spot.

1

If the vehicle is not stopped in step , pressing the S-APGS switch 1 time

while the vehicle is in motion allows you to select “Parallel Parking” and

2

proceed directly to step

.

3

●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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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 parallel park-

ing assist mode.

●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.

●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 from 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 position 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 depressing

the brake pedal, and then press the S-APGS switch to turn off the system.

●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.

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4-5. Using the driving support systems

How to depart from a parallel parking position (exit parallel park-

ing assist mode)

■ Function summary

When departing from a parallel parking position, select the direction

you would like to depart in, and steering wheel operation assist con-

trol will be provided to guide the vehicle to a position from which

you can take off.

1

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.

4

2

3

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 from which you can take off.

Depending on the condition of the parking space, guidance to starting

points for moving forward and backing up, as well as the steering 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.

2

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4-5. Using the driving support systems

■ Using the exit parallel parking assist mode to depart

1

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”.

2

Operate the turn signal lever (P. 257) to select whether you

would like to depart to 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.

3

When the shift position is changed to R (or D) according to the

advice display on the screen (P. 378), a high-pitched beep is

emitted and assist control will start.

4

Step

and onward is for cases in which the advice display shows “Shift

to [R]” after operating the turn signal lever to select a departure direc-

tion.

● When the steering wheel auto operation starts, the steering

wheel auto operation display (P. 378) and assistance level

indicator (P. 378) will be shown in the display area.

● To stop assist control, press the S-APGS switch.

4

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

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 control is stopped. (P. 379)

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5

When a beep sounds once

and the stop display (P. 378)

is shown on the display, stop

the vehicle.

6

7

Change the shift position to D.

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.

4

● When departure cannot be accomplished on the first try and

8

multi-turn maneuvering is necessary, proceed to step

.

● When multi-turn maneuvering is not necessary, proceed to

14

step

(P. 391).

8

When a beep sounds once

and the stop display (P. 378)

is shown on the display, stop

the vehicle.

9

Change the shift position to R.

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10

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

and slowly back up while adjusting your speed by depressing the

brake pedal.

5

10

Depending on the condition of the parking space, steps

need to be repeated.

to

may

11

When a beep sounds once

and the stop display (P. 378)

is shown on the display, stop

the vehicle.

12

13

Change the shift position to D.

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.

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14

When the vehicle has nearly

reached the take-off point, a

high-pitched beep is emitted

and assist control finishes.

From there, grasp the steer-

ing wheel and proceed for-

ward.

■Exit parallel parking assist mode

●During assist control, if the driver determines that they are at a position

where take-off is possible and operates the steering wheel, assist control is

stopped at that position.

4

●Assist control cannot be used if there are no parked vehicles ahead, or if the

gap between the front of your vehicle and the vehicle parked ahead is too

large.

●When using the exit parallel parking assist mode, the assist mode may not

be able to operate depending on the surrounding environment.

NOTICE

●The detection range of the sensors (P. 354) is limited. Directly confirm

the safety of your surroundings, and if there is a possibility of a contact

accident, 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.

●When departing for a position from which you can take off, directly confirm

the safety of your surroundings.

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How to park next to other vehicles (back-in parking assist mode)

■ Function summary

Stop so that the center of the target parking spot appears nearly

perpendicular to the vehicle. If the space is detectable, the forward

guidance function can be used. Furthermore, depending on the

parking space and other conditions, multi-turn maneuvering assist

control is also provided if necessary.

1

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.

2

3

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.

4

Parking is complete

This completes the assist mode.

Depending on the condition of the parking space, guidance to starting

points for moving forward and backing up, as well as the steering wheel

auto operation, are repeated any time multi-turn maneuvering is neces-

3

sary following step

parking completes.

from the time the vehicle begins backing up until

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■ Parking

1

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.

3.3 ft.

(1 m)

4

● The mode switches each

time the S-APGS switch is

pressed. (P. 377)

● 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. 257) 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.

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2

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. 378) and assistance level

indicator (P. 378) 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. (P. 379)

● If the space turns out to be too narrow after assist control

starts, a sharp beeping sound is emitted and assist control is

stopped.

3

When a beep sounds once

and the stop display (P. 378)

is shown on the display, stop

the vehicle.

4

Change the shift position to R.

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5

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-

6

essary, proceed to step

.

● When multi-turn maneuvering is not necessary, proceed to

12

step . (P. 396)

6

When a beep sounds once

and the stop display (P. 378)

is shown on the display, stop

the vehicle.

4

7

8

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.

9

When a beep sounds once

and the stop display (P. 378)

is shown on the display, stop

the vehicle.

10

Change the shift position to R.

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11

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.

6

11

Depending on the condition of the parking space, steps

need to be repeated.

to

may

12

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. 378), 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. 407), 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.

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4-5. Using the driving support systems

●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.

1

Intended parking spot

Wall

2

■Tips for using the back-in parking assist mode

●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.

3.3 ft.

(1 m)

4

●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.

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4-5. Using the driving support systems

Multi-information display messages

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

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.

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4-5. Using the driving support systems

Situation/Handling method

Message

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.

4

 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.

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4-5. Using the driving support systems

Message Situation/Handling method

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.

■ When the operation is canceled

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.

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401

4-5. Using the driving support systems

Situation/Handling method

Message

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.

■ When the operation is canceled

Message

Situation/Handling method

The driver holds the

steering wheel during  Stop the vehicle and

assist control.

rest your hands on the

steering wheel without

applying any force.

Then press the S-APGS

switch to restart assist

control.

4

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.

 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.

Assist control is tem-

porarily

stopped

(able to be restarted)

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4-5. Using the driving support systems

Message Situation/Handling method

The vehicle moved  Press the

S-APGS

too close to an obsta-

cle in front of the

vehicle.

switch after changing

the shift position to R to

restart assist control.

The vehicle moved  Press

the

S-APGS

too close to an obsta-

cle to the rear of the

vehicle.

switch after changing

the shift position to D to

restart assist control.

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4-5. Using the driving support systems

Precautions during use

■ Sensors

Detect the vehicle to help determine the parking spot.

1

Front side sensors

Rear side sensors

2

●The sensor detection range when using

back-in parking assist mode

4

1

Intended parking spot

●The sensor detection range when using

parallel parking assist mode

1

Intended parking spot

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4-5. 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.

●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.

1

Poles

2

Wall

●Also, the target parking spot may devi-

ate when a pedestrian, etc. is detected.

1

Pedestrian

●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.

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4-5. Using the driving support systems

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.

4

●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 an 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.

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4-5. 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 or compact spare tire (if equipped)

●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).

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4-5. Using the driving support systems

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. (P. 356)

• 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.

4

• 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.

PRIUS_OM_OM47D44U_(U)

Using the driving support systems -> S-APGS (Simple Advanced Parking Guidance System) for Your Toyota Prius 4 Door Fourth Generation (2016-2022)

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