Toyota Prius Prime (2021 year). Manual in english - part 8

 

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Toyota Prius Prime (2021 year). Manual in english - part 8

 

 

470

PRIUS PRIME_OM_OM47D71U_(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 switches as follows.

The selected function is indicated on the operation display area of the
multi-information display. (

P. 471)

*

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

conditions are met (

P. 489). 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 P

When  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

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PRIUS PRIME_OM_OM47D71U_(U)

471

5-5. Using the driving support systems

5

Drivin

g

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  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.

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.

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. 446

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.  446),  regardless  of

whether the intuitive parking assist is on or off. (

P. 445)

Guidance screen

1

2

3

4

5

6

7

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472

PRIUS PRIME_OM_OM47D71U_(U)

5-5. Using the driving support systems

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

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. 494)

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PRIUS PRIME_OM_OM47D71U_(U)

473

5-5. Using the driving support systems

5

Drivin

g

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.

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  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.

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
time  multi-turn  maneuvering  is  necessary  following  step 

  from  the

time the vehicle begins backing up until parking completes.

How to parallel park (parallel parking assist mode)

1

2

3

4

3

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474

PRIUS PRIME_OM_OM47D71U_(U)

5-5. Using the driving support systems

Parking

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. 470)

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.

1

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PRIUS PRIME_OM_OM47D71U_(U)

475

5-5. Using the driving support systems

5

Drivin

g

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. 351) 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)

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476

PRIUS PRIME_OM_OM47D71U_(U)

5-5. Using the driving support systems

When  a  beep  sounds  once
and the stop display (

P. 471)

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.  471) and assistance level

indicator (

P. 471) 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, 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. 494)

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

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PRIUS PRIME_OM_OM47D71U_(U)

477

5-5. Using the driving support systems

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When  a  beep  sounds  once
and the stop display (

P. 471)

is  shown  on  the  display,  stop
the vehicle.

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.
When  a  beep  sounds  once  and  the  stop  display  (

P.  471)  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, 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.

Depending  on the condition of  the  parking space,  steps 

 to 

 may

need to be repeated.

6

7

8

9

10

11

6

11

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478

PRIUS PRIME_OM_OM47D71U_(U)

5-5. Using the driving support systems

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.

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. 500), 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.

In step   the S-APGS switch is pressed after already passing over the tar-
get parking spot.
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
proceed directly to step  .

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.

12

1

1

2

3

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PRIUS PRIME_OM_OM47D71U_(U)

479

5-5. Using the driving support systems

5

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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  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.

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.

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480

PRIUS PRIME_OM_OM47D71U_(U)

5-5. Using the driving support systems

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.

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.
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.

How to depart from a parallel parking position (exit parallel park-
ing assist mode)

1

2

3

2

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PRIUS PRIME_OM_OM47D71U_(U)

481

5-5. Using the driving support systems

5

Drivin

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Using the exit parallel parking 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.  351)  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.

When the shift position is changed to R (or D) according to the
advice display on the screen (

P. 471), 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 departure direc-
tion.

When  the  steering  wheel  auto  operation  starts,  the  steering
wheel auto operation display (

P. 471)  and assistance level

indicator (

P. 471) 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, 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. 494)

1

2

3

4

4

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482

PRIUS PRIME_OM_OM47D71U_(U)

5-5. Using the driving support systems

When a beep sounds once and
the  stop  display  (

P.  471)  is

shown on the display, stop the
vehicle.

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.

When  departure cannot be accomplished  on  the  first try and
multi-turn maneuvering is necessary, proceed to step 

.

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

 (

P. 484).

5

6

7

8

14

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PRIUS PRIME_OM_OM47D71U_(U)

483

5-5. Using the driving support systems

5

Drivin

g

When a beep sounds once and
the  stop  display  (

P.  471)  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, 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.

Depending on the condition of the parking space, steps 

 to 

 may

need to be repeated.

When a beep sounds once and
the  stop  display  (

P.  471)  is

shown on the display, stop the
vehicle.

Change the shift position to D.

8

9

10

5

10

11

12

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484

PRIUS PRIME_OM_OM47D71U_(U)

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 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.

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.

13

14

NOTICE

The detection range of the sensors (

P. 449) 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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PRIUS PRIME_OM_OM47D71U_(U)

485

5-5. Using the driving support systems

5

Drivin

g

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.

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 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 following step   from the time the vehicle begins backing up until
parking completes.

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

1

2

3

4

3

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486

PRIUS PRIME_OM_OM47D71U_(U)

5-5. Using the driving support systems

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. (

P. 470)

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.  351)  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

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PRIUS PRIME_OM_OM47D71U_(U)

487

5-5. Using the driving support systems

5

Drivin

g

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. 471)  and assistance level

indicator (

P. 471) 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. 494)

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.  471)  is

shown on the display, stop the
vehicle.

Change the shift position to R.

2

3

4

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PRIUS PRIME_OM_OM47D71U_(U)

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,
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 

. (

P. 489)

When a beep sounds once and
the  stop  display  (

P.  471)  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 (

P. 471)

is  shown  on  the  display,  stop
the vehicle.

Change the shift position to R.

5

6

12

6

7

8

9

10

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PRIUS PRIME_OM_OM47D71U_(U)

489

5-5. Using the driving support systems

5

Drivin

g

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. 471), 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. 500), 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

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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)

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5-5. Using the driving support systems

5

Drivin

g

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.

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PRIUS PRIME_OM_OM47D71U_(U)

5-5. Using the driving support systems

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

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PRIUS PRIME_OM_OM47D71U_(U)

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5-5. Using the driving support systems

5

Drivin

g

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.

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PRIUS PRIME_OM_OM47D71U_(U)

5-5. Using the driving support systems

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 

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.

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PRIUS PRIME_OM_OM47D71U_(U)

495

5-5. Using the driving support systems

5

Drivin

g

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

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5-5. Using the driving support systems

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

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5

Drivin

g

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

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5-5. 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.

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.

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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).

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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. 450)

• 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.

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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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Hill-start assist control

Helps to reduce the backward movement of the vehicle when start-
ing on an uphill

EPS (Electric Power Steering) 

Employs an electric motor to reduce the amount of effort needed to
turn the steering wheel.

The  slip  indicator  light  will  flash
while  the  TRAC/VSC/ABS  sys-
tems are operating.

If the vehicle gets stuck in mud, dirt or snow, the TRAC system may

reduce power from the hybrid system to the wheels. Pressing 

 to

turn the system off may make it easier for you to rock the vehicle in
order to free it.
To  turn  the  TRAC  system  off,

quickly press and release 

.

The  “Traction  Control  Turned  Off”
will be shown on the multi-informa-
tion display. 

Press 

 

again  to  turn  the  sys-

tem back on.

When the TRAC/VSC/ABS systems are operating

Disabling the TRAC system

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Turning off both TRAC and VSC systems

To turn the TRAC and VSC systems off, press and hold 

 for more than 3

seconds while the vehicle is stopped.
The VSC OFF indicator will come on and the “Traction Control Turned Off”
will be shown on the multi-information display.

*

Press 

 again to turn the systems back on.

*

: Pre-collision  brake  assist  and  pre-collision  braking  will  also  be  disabled.

The PCS warning light will come on and the message will be shown on the
multi-information display. (

P. 675)

When the message is displayed on the multi-information display show-

ing that TRAC has been disabled even if 

 has not been pressed

TRAC is temporary deactivated. If the information continues to show, contact
your Toyota dealer.

Operating conditions of hill-start assist control

When  the  following  four  conditions  are  met,  the  hill-start  assist  control  will
operate:

The shift position is in a position other than P or N (when starting off forward/
backward on an upward incline)

The vehicle is stopped

The accelerator pedal is not depressed

The parking brake is not engaged

Automatic system cancelation of hill-start assist control

The hill-start assist control will turn off in any of the following situations:

Shift the shift position to P or N

The accelerator pedal is depressed

The parking brake is engaged

No more than 2 seconds have elapsed after the brake pedal is released.

Sounds and vibrations caused by the ABS, brake assist, VSC, TRAC and
hill-start assist control systems

A sound may be heard from the engine compartment when the brake pedal
is depressed repeatedly, when the hybrid system is started or just after the
vehicle begins to move. This sound does not indicate that a malfunction has
occurred in any of these systems.

Any  of  the  following  conditions  may  occur  when  the  above  systems  are
operating. None of these indicates that a malfunction has occurred. 
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.

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5-5. Using the driving support systems

ECB operating sound

ECB  operating  sound  may  be  heard  in  the  following  cases,  but  it  does  not
indicate that a malfunction has occurred.

Operating sound heard from the engine compartment when the brake pedal
is operated.

Motor  sound  of  the  brake  system  heard  from  the  front  part  of  the  vehicle
when the driver’s door is opened.

Operating sound heard from the engine compartment when one or two min-
utes passed after the stop of the hybrid system.

EPS operation sound

When the steering wheel is operated, a motor sound (whirring sound) may be
heard. This does not indicate a malfunction.

Automatic reactivation of TRAC and VSC systems

After turning the TRAC and VSC systems off, the systems will be automati-
cally re-enabled in the following situations:

When the power switch is turned off

If only the TRAC system is turned off, the TRAC will turn on when vehicle
speed increases 
If both the TRAC and VSC systems are turned off, automatic re-enabling
will not occur when vehicle speed increases.

Reduced effectiveness of the EPS system

The effectiveness of the EPS system is reduced to prevent the system from
overheating when there is frequent steering input over an extended period of
time. The steering wheel may feel heavy as a result. Should this occur, refrain
from excessive steering input or stop the vehicle and turn the hybrid system
off. The EPS system should return to normal within 10 minutes.

Electric power steering system warning light (warning buzzer)

P. 675

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WARNING

The ABS does not operate effectively when

The  limits  of  tire  gripping  performance  have  been  exceeded  (such  as
excessively worn tires on a snow covered road).

The vehicle hydroplanes while driving at high speed on wet or slick roads.

Stopping distance when the ABS is operating may exceed that of nor-
mal conditions

The ABS is not designed to shorten the vehicle’s stopping distance. Always
maintain a safe distance from the vehicle in front of you, especially in the
following situations:

When driving on dirt, gravel or snow-covered roads

When driving with tire chains

When driving over bumps in the road

When driving over roads with potholes or uneven surfaces

TRAC/VSC may not operate effectively when

Directional control and power may not be achievable while driving on slip-
pery road surfaces, even if the TRAC/VSC system is operating. Drive the
vehicle carefully in conditions where stability and power may be lost.

Hill-start assist control does not operate effectively when

Do not overly rely on hill-start assist control. Hill-start assist control may
not operate effectively on steep inclines and roads covered with ice.

Unlike the parking brake, hill-start assist control is not intended to hold the
vehicle  stationary for an  extended  period  of time. Do not attempt to  use
hill-start assist control to hold the vehicle on an incline, as doing so may
lead to an accident.

When the TRAC/ABS/VSC is activated

The slip indicator light flashes. Always drive carefully. Reckless driving may
cause an accident. Exercise particular care when the indicator light flashes.

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WARNING

When the TRAC/VSC systems are turned off

Be  especially  careful  and  drive  at  a  speed  appropriate  to  the  road  condi-
tions. As these are the systems to help ensure vehicle stability and driving
force, do not turn the TRAC/VSC systems off unless necessary.

Replacing tires

Make sure that all tires are of the specified size, brand, tread pattern and
total load capacity. In addition, make sure that the tires are inflated to the
recommended tire inflation pressure level.
The ABS, TRAC and VSC systems will not function correctly if different tires
are installed on the vehicle.
Contact  your Toyota  dealer  for  further  information  when  replacing  tires  or
wheels.

Handling of tires and the suspension

Using tires with any kind of problem or modifying the suspension will affect
the driving assist systems, and may cause a system to malfunction.

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Winter driving tips

Use  fluids  that  are  appropriate  to  the  prevailing  outside  tempera-
tures. 

• Engine oil
• Engine/power control unit coolant
• Washer fluid

Have a service technician inspect the condition of the 12-volt bat-
tery.

Have the vehicle fitted with four snow tires or purchase a set of tire
chains for the front tires. 

Ensure that all tires are the same size and brand, and that chains match
the size of the tires.

Perform the following according to the driving conditions:

Do not try to forcibly open a window or move a wiper that is frozen.
Pour warm water over the frozen area to melt the ice. Wipe away
the water immediately to prevent it from freezing. 

To  ensure  proper  operation  of  the  climate  control  system  fan,
remove  any  snow  that  has  accumulated  on  the  air  inlet  vents  in
front of the windshield. 

Check for and remove any excess ice or snow that may have accu-
mulated  on  the  exterior  lights,  vehicle’s  roof,  chassis,  around  the
tires or on the brakes.

Remove  any  snow  or  mud  from  the  bottom  of  your  shoes  before
getting in the vehicle.

Carry  out  the  necessary  preparations  and  inspections  before
driving the vehicle in winter. Always drive the vehicle in a man-
ner appropriate to the prevailing weather conditions. 

Preparation for winter

Before driving the vehicle

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5-6. Driving tips

Accelerate the vehicle slowly, keep a safe distance between you and
the vehicle ahead, and drive at a reduced speed suitable to road con-
ditions.

Park the vehicle and shift the shift position to P and block the wheel
under the vehicle without setting the parking brake. The parking brake
may  freeze  up,  preventing  it  from  being  released.  If  the  vehicle  is
parked  without  setting  the  parking  brake,  make  sure  to  block  the
wheels.
Failure to do so may be dangerous because it may cause the vehicle
to move unexpectedly, possibly leading to an accident.

Use the correct tire chain size when mounting the tire chains. Chain
size is regulated for each tire size.
Side chain

0.12 in. (3.0 mm)
1.18 in. (30.0 mm)
0.39 in. (10.0 mm)

Cross chain

0.16 in. (4.0 mm)
0.98 in. (25.0 mm)
0.55 in. (14.0 mm)

Regulations regarding the use of tire chains vary depending on loca-
tion and type of road. Always check local regulations before installing
chains. 

When driving the vehicle

When parking the vehicle

Selecting tire chains

1
2
3

4
5
6

Regulations on the use of tire chains

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Tire chain installation

Observe the following precautions when installing and removing chains:

Install and remove tire chains in a safe location. 

Install tire chains on the front tires only. Do not install tire chains on the rear
tires.

Install tire chains on front tires as tightly as possible. Retighten chains after
driving 1/4 - 1/2 mile (0.5 - 1.0 km).

Install tire chains following the instructions provided with the tire chains. 

Consumption of fuel and electricity

In cold temperatures, resistance of the parts of a vehicle (transmission, tires,
etc.) generally increases, resulting in increase of energy consumption. As a
result, fuel economy is likely to decrease.
Consumption  of  fuel  and  electricity  of  this  vehicle  is  also  likely  to  become
worse in cold temperatures.

WARNING

Driving with snow tires

Observe the following precautions to reduce the risk of accidents. 
Failure to do so may result in a loss of vehicle control and cause death or
serious injury.

Use tires of the specified size.

Maintain the recommended level of air pressure.

Do  not  drive  in  excess  of  75  mph  (120  km/h),  regardless  of  the  type  of
snow tires being used.

Use snow tires on all, not just some wheels.

Driving with tire chains

Observe the following precautions to reduce the risk of accidents. 
Failure to do so may result in the vehicle being unable to be driven safely,
and may cause death or serious injury.

Do not drive in excess of the speed limit specified for the tire chains being
used, or 30 mph (50 km/h), whichever is lower.

Avoid driving on bumpy road surfaces or over potholes.

Avoid  sudden  acceleration,  abrupt  steering,  sudden  braking  and  shifting
operations that cause sudden engine braking.

Slow down sufficiently before entering a curve to ensure that vehicle con-
trol is maintained.

Do not use LTA (Lane Tracing Assist).

When parking the vehicle

When parking the vehicle without applying the parking brake, make sure to
chock the wheels.  If you do not  chock the wheels, the vehicle  may  move
unexpectedly, possibly resulting in an accident.

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NOTICE

Repairing or replacing snow tires

Request repairs or replacement of snow tires from Toyota dealers or legiti-
mate tire retailers.
This is because the removal and attachment of snow tires affects the opera-
tion of the tire pressure warning valves and transmitters.

Fitting tire chains

The tire pressure warning valves and transmitters may not function correctly
when tire chains are fitted.

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6

Interior features

6-1. Using the air conditioning 

system and defogger

Automatic air conditioning 

system (vehicles with 
7-inch display)................. 512

Automatic air conditioning 

system (vehicles with 
11.6-inch display)............ 524

Remote Air Conditioning 

System ............................ 535

Heated steering wheel/

seat heaters .................... 539

6-2. Using the interior lights

Interior lights list ................ 541

• Front interior light.......... 542
• Front personal lights ..... 542
• Rear interior light .......... 543

6-3. Using the storage features

List of storage features ..... 544

• Glove box...................... 545
• Console box.................. 545
• Cup holders .................. 546
• Bottle holders/

door pockets ................. 547

• Auxiliary boxes.............. 548
• Seat back pockets ........ 548

Luggage compartment 

features........................... 549

6-4. Using the other interior 

features

Other interior features ....... 553

• Sun visors ..................... 553
• Vanity mirrors................ 553
• Power outlets ................ 554
• USB charging ports....... 555
• Wireless charger........... 557
• Armrest ......................... 566
• Coat hooks.................... 566
• Assist grips ................... 567

Garage door opener.......... 568

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6-1. Using the air conditioning system and defogger

Automatic air conditioning system (vehi-

cles with 7-inch display)

Adjusting the temperature setting

Move  the  temperature  setting
knob  upwards  to  increase  the
temperature and downwards to
decreases the temperature.

If 

 is not pressed, the sys-

tem  will  blow  ambient  tempera-
ture air or heated air.

Fan speed setting

Move  the  fan  speed  setting
knob  upwards  to  increase  the
fan  speed  and  downwards  to
decrease the fan speed.

The  fan  speed  is  shown  on  the
display. (7 levels)

Press 

 to turn the fan off.

Air outlets and fan speed are automatically adjusted according
to the temperature setting.

Air conditioning controls

Temperature 
setting knob

Fan speed 
setting knob

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Change the airflow mode

Move  the  airflow  change  knob
upwards  or  downwards  to
change the airflow mode.

The  air  outlets  used  are
switched  each  time  the  knob  is
operated.

Air flows to the upper body
Air  flows  to  the  upper  body
and feet
Air flows to the feet
Air  flows  to  the  feet  and  the
windshield  defogger  oper-
ates

Other functions

Switching between outside air and recirculated air modes 
(

P. 515)

Defogging the windshield (

P. 515)

Defogging the rear window and outside rear view mirrors 
(

P. 516)

Airflow change 
knob

1
2

3
4

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PRIUS PRIME_OM_OM47D71U_(U)

Press 

.

Adjust the temperature setting. (

P. 512)

To stop the operation, press 

.

Automatic mode indicator

If the fan speed setting or air flow modes are operated, the 

indicator  goes  off.  However,  automatic  mode  for  functions  other
than that operated is maintained.

This function automatically controls the air conditioning airflow so that
priority is given to the front seats. When the front passenger seat is
not occupied, airflow may switch to only the driver’s seat. Unneces-
sary air conditioning is suppressed, contributing to increased fuel effi-
ciency.
Front seat concentrated airflow mode operates in the following situa-
tions.

No passengers are detected in the rear seats

The windshield defogger is not operating

While operating, 

 illuminates.

Manually turning front seat concentrated airflow mode on/off

In front seat concentrated airflow mode, directing airflow to the front
seats  only  and  to  all  seats  can  be  switched  via  switch  operation.
When  the  mode  has  been  switched  manually,  automatic  airflow
control stops operating.

Press 

  on  the  air  conditioning  operation  panel  and  switch

the airflow.

Indicator illuminated: Airflow to the front seats only

Indicator off: Airflow to all the seats

Using automatic mode

Front seat concentrated airflow mode (S-FLOW)

1

2

3

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Switching between outside air and recirculated air modes

Press 

.

The mode switches between outside air mode and recirculated air mode

each time 

 is pressed.

The 

  indicator  illuminates  when  the  recirculated  air  mode  is

selected.

Air conditioning eco mode

The air conditioning system is controlled with low fuel consumption
prioritized such as reducing fan speed, etc.

Press 

.

The air conditioning eco mode switches between on and off each time

 is pressed.

“ECO”  is  displayed  on  the  air  conditioning  screen  when  the  air  condi-
tioning eco mode is on.

Defogging the windshield

Defoggers  are  used  to  defog  the  windshield  and  front  side  win-
dows.

Press 

.

Set 

 to outside air mode if the recirculated air mode is used. (It

may switch automatically.)
To defog the windshield and the side windows early, turn the air flow and
temperature up.

The 

 indicator illuminates when the defoggers are on.

To  return  to  the  previous  mode,  press 

  again  when  the  wind-

shield is defogged. Also, turning the power switch off during operation
can return to the previous mode.

Other functions

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Defogging the rear window and outside rear view mirrors

Defoggers are used to defog the rear window and to remove rain-
drops, dew and frost from the outside rear view mirrors.

Press 

.

Defoggers switch between on and off each time 

 is pressed.

The 

 indicator illuminates when defoggers are on.

The defoggers will automatically turn off after a period of time.

Eco score (A/C score)

P. 229

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Location of air outlets

The  air  outlets  and  air  volume
change 

according 

to 

the

selected airflow mode.

Adjusting the air flow direction

Direct air flow to the left or right,
up or down.

Opening and closing the air outlets

Air outlets

Left side outlet/right side outlet

Center outlets

Open the vent 
Close the vent 

Open the vent 
Close the vent 

1
2

1
2

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Heating

In HV mode, the gasoline engine may operate in order to extract heat from
the engine coolant via the heater.

In EV mode, heating is done by a heat pump system.
• When the outside temperature is low or it is snowing, compared to con-

ventional vehicles, heating may be less effective and warm air may not
come out.

• If  frost  has  formed  on  the  outside  heat  exchanger,  the  heating  perfor-

mance  will  decline.  The  frost  can  be  removed  from  the  outside  heat
exchanger by operating the Remote Air Conditioning System before driv-
ing (

P. 535). When frosted over, the heating operation of the Remote

Air Conditioning System starts after defrosting.

• When 

 is turned on, the heating is controlled optimally. Therefore,

the set heating performance may not be achieved even if the fan speed
setting is increased.

In  the  following  situations  the  gasoline  engine  may  operate  in  order  to
extract heat from the engine coolant via the heater even in EV mode.
• The outside temperature is approximately 14°F (-10°C) or low

 is operating

Using automatic mode

Fan speed is adjusted automatically according to the temperature setting and
the ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow

immediately after 

 is pressed.

Water droplets during air conditioning operation

• When  the  outside  heat  exchanger  is

frosted over, fan speed declines and it
may become harder to heat the inte-
rior. However, it is not a malfunction. 
In  this  situation,  the  air  temperature
from the outlets may not change even
though the set temperature is raised.

The outside heat exchanger, accumulator
and air conditioning piping may incur con-
densation  or  frost  may  form.  During  or
after the air conditioning operation, water
droplets  may  fall  from  the  vehicle.  How-
ever, it is not a malfunction.

Outside heat exchanger

Outside heat exchanger

Accumulator

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Setting confirmation screen

Operation of automatic airflow control

In order to maintain a comfortable interior, airflow may be directed to seats
without  passengers  immediately  after  the  hybrid  system  is  started  and  at
other times depending on the outside temperature.

After  the  hybrid  system  is  started,  if  passengers  move  around  inside  or
enter/exit the vehicle, the system cannot accurately detect the presence of
passengers and automatic airflow control will not operate.

Operation of manual airflow control

Even if the function is manually switched to directing airflow to only the front
seats, when a rear seat is occupied, it may automatically direct airflow to all
seats.

To return to automatic airflow control

With the indicator off, turn the power switch off.
After 60 minutes or more elapse, turn the power switch to ON.

Front seat concentrated airflow mode (S-FLOW) operation

Changing settings using the multi-information display

The air conditioning system settings can be changed on the 

 screen of

the multi-information display. (

P. 241)

When  changing  the  settings  of  the  air
conditioning system, the setting confirma-
tion screen is shown as a pop-up on the
multi-information display.
Press 

 of the meter control switches to

go back to the previous screen.

When 

  is  pressed,  the  front  seat

concentrated airflow mode (S-FLOW) sta-
tus  is  displayed  on  the  multi-information
display.

1

2

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Fogging up of the windows

The  windows  will  easily  fog  up  when  the  humidity  in  the  vehicle  is  high.

Turning 

  on  will  dehumidify  the  air  from  the  outlets  and  defog  the

windshield effectively.

If you turn 

 off, the windows may fog up more easily.

The windows may fog up if the recirculated air mode is used.

Windshield fog detection function

When automatic mode is set, the humidity sensor (

P. 523) detects fog on

the windshield and controls the air conditioning system to prevent fog.

When driving on dusty roads

Close all windows. If dust thrown up by the vehicle is still drawn into the vehi-
cle after closing the windows, it is recommended that the air intake mode be
set to outside air mode and the fan speed to any setting except off.

Outside/recirculated air mode

Setting to the recirculated air mode temporarily is recommended in prevent-
ing dirty air from entering the vehicle interior and helping to cool the vehicle
when the outside air temperature is high.

Outside/recirculated  air  mode  may  automatically  switch  depending  on  the
temperature setting or the inside temperature.

Fresh air intake system while parking

When  parking,  the  system  automatically  switches  to  outside  air  mode  to
encourage  better  air  circulation  throughout  the  vehicle,  helping  to  reduce
odors that occur when starting the vehicle.

Operation  of  the  air  conditioning  system  in  the  air  conditioning  eco
mode

In the air conditioning eco mode, the air conditioning system is controlled as
follows to prioritize fuel efficiency:
• Engine  speed  and  compressor  operation  controlled  to  restrict  heating/

cooling capacity

• Fan speed restricted when automatic mode is selected

To improve air conditioning performance, perform the following operations:
• Adjust the fan speed
• Adjust the temperature setting
• Turn off the air conditioning eco mode

When the driving mode is set to Eco driving mode, the air conditioning eco
mode will be turned on automatically. Even in this case, the air conditioning

eco mode can be turned off by pressing 

. (

P. 430)

When the outside temperature falls to nearly 32

F (0

C)

The dehumidification function may not operate even when 

 is pressed.

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When the outside temperature exceeds 75°F (24°C) and the air condition-
ing system is on

In order to reduce the air conditioning power consumption, the air condition-
ing system may switch to recirculated air mode automatically. This may also
reduce fuel consumption.

Recirculated air mode is selected as a default mode when the power switch
is turned to ON mode.

It is possible to switch to outside air mode at any time by pressing 

.

Ventilation and air conditioning odors

To let the fresh air in, set the air conditioning system to the outside air mode.

During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning system. This may then cause odor to
be emitted from the vents.

In  order  to  suppress  odors  that  occur  when  the  air  conditioning  system
starts, fresh air is automatically taken in when parked.

To reduce potential odors from occurring, the start timing of the blower may
be delayed for a short period of time immediately after the air conditioning
system is started in automatic mode.

Air conditioning filter

P. 640

Air conditioning system refrigerant

The meaning of each symbol on the label are as follows:

A  label  regarding  the  refrigerant  of  the
air conditioning system is attached to the
hood at the location shown in the follow-
ing illustration.

Caution

Air conditioning system

Air conditioning system lubricant type

Requires  registered  technician  to  service  air  conditioning
system

Flammable refrigerant

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Customization

Settings (e.g. A/C auto switching operation) can be changed. (Customizable
features: 

P. 753)

WARNING

To prevent the windshield from fogging up

Do not use

 

 during cool air operation in extremely humid weather.

The difference between the temperature of the outside air and that of the
windshield can cause the outer surface of the windshield to fog up, block-
ing your vision.

To prevent burns

Do not touch the rear view mirror surfaces when the outside rear view mirror
defoggers are on.

Do not place anything on the instrument
panel  which  may  cover  the  air  outlets.
Otherwise,  air  flow  may  be  obstructed,
preventing  the  windshield  defoggers
from defogging.

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NOTICE

Humidity sensor

Do not spray the glass cleaner on the sensor or subject it to strong impacts

Do not stick anything on the sensor

To prevent 12-volt battery discharge

Do not leave the air conditioning system on longer than necessary when the
hybrid system is off.

When repairing/replacing parts of the air conditioning system

Have repair/replacement performed by your Toyota dealer. When a part of
the  air  conditioning  system,  such  as  the  evaporator,  is  to  be  replaced,  it
must be replaced with a new one.

Air outlets

The air outlets become hot when used for heating. Therefore, use caution
and adjust the air outlets accordingly.

In order to detect fog on the windshield, a
sensor  which  monitors  the  temperature
of the windshield, the surround humidity,
etc. is installed. (

P. 520)

Follow  these  points  to  avoid  damaging
the sensor:

Do not disassemble the sensor

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Automatic air conditioning system (vehi-

cles with 11.6-inch display)

The  following  informations  are  displayed  on  the  navigation  system
screen.

Temperature setting
Fan speed setting
Automatic mode setting
Airflow mode setting
Front  seat  concentrated  air-
flow mode (S-FLOW) setting
Air  conditioning  eco  mode
setting
A/C setting
Outside/recirculated air mode setting

Air outlets and fan speed are automatically adjusted according
to the temperature setting.

Air conditioner information area

1
2
3
4
5

6

7
8

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The  air  conditioning  control
screen can be displayed by touch-
ing the air conditioner information
area  on  the  navigation  system
screen.

Adjusting the temperature setting

Press “

” on 

 to increase the temperature and “

” to decrease

the temperature.

If  the 

  indicator  is  turned  off,  the  system  will  blow  ambient

temperature air or heated air.

Adjusting the fan speed setting

Select 

 on the air conditioning control screen to increase the

fan speed and 

 to decrease the fan speed.

The fan speed is shown on the control screen. (7 levels)

Select 

 to turn the fan off.

Change the airflow mode

To change the air outlets, select any switch on the air conditioning
control screen.

Air flows to the upper body
Air  flows  to  the  upper  body
and feet
Air flows to the feet
Air  flows  to  the  feet  and  the
windshield  defogger  oper-
ates

Air conditioning control screen

Air conditioning controls

1
2

3
4

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Other functions

Switching between outside air and recirculated air modes 
(

P. 527)

Defogging the windshield (

P. 527)

Defogging the rear window and outside rear view mirrors 
(

P. 527)

Select 

 on the air conditioning control screen.

Adjust the temperature setting. (

P. 525)

To stop the operation, select 

.

Automatic mode indicator

If  the  fan  speed  setting  or  air  flow  modes  are  operated,  the

 indicator goes off. However, automatic mode for func-

tions other than that operated is maintained.

This function automatically controls the air conditioning airflow so that
priority is given to the front seats. When the front passenger seat is
not occupied, airflow may switch to only the driver’s seat. Unneces-
sary air conditioning is suppressed, contributing to increased fuel effi-
ciency.
Front seat concentrated airflow mode operates in the following situa-
tions.

No passengers are detected in the rear seats

The windshield defogger is not operating
While operating, 

 illuminates.

Manually turning front seat concentrated airflow mode on/off

In front seat concentrated airflow mode, directing airflow to the front
seats  only  and  to  all  seats  can  be  switched  via  switch  operation.
When  the  mode  has  been  switched  manually,  automatic  airflow
control stops operating.
Select 

 on the center display and switch the airflow.

Indicator illuminated: Airflow to the front seats only

Indicator off: Airflow to all the seats

Using automatic mode

Front seat concentrated airflow mode (S-FLOW)

1

2

3

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Switching between outside air and recirculated air modes

Select 

 on the air conditioning control screen.

The mode switches between outside air mode and recirculated air mode
each time 

 is selected. 

The 

  indicator  illuminates  when  recirculated  air  mode  is

selected.

Air conditioning eco mode

The air conditioning system is controlled with low fuel consumption
prioritized such as reducing fan speed, etc.

Select 

 on the air conditioning control screen.

The air conditioning eco mode switches between on and off each time

 is selected. 

The 

  indicator  illuminates  when  the  air  conditioning  eco  mode  is

on.

Defogging the windshield

Defoggers  are  used  to  defog  the  windshield  and  front  side  win-
dows.
Press 

.

Set 

 to outside air mode if the recirculated air mode is used.

(It may switch automatically.)
To defog the windshield and the side windows early, turn the air flow and
temperature up.
The switch indicator illuminates when the defoggers are on.

To return to the previous mode, press 

 again when the windshield is

defogged. Also, turning the power switch off during operation can return
to the previous mode.

Defogging the rear window and outside rear view mirrors

Defoggers are used to defog the rear window and to remove rain-
drops, dew and frost from the outside rear view mirrors.
Press 

.

Defoggers switch between on and off each time 

 is pressed. 

The switch indicator illuminates when defoggers are on.
The defoggers will automatically turn off after a period of time.

Other functions

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Eco score (A/C score)

P. 229

Location of air outlets

The  air  outlets  and  air  volume
change 

according 

to 

the

selected airflow mode.

Adjusting the air flow direction

Direct air flow to the left or right,
up or down.

Opening and closing the air outlets

Air outlets

Left side outlet/right side outlet

Center outlets

Open the vent
Close the vent

Open the vent
Close the vent

1
2

1
2

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Heating

In HV mode, the gasoline engine may operate in order to extract heat from
the engine coolant via the heater.

In EV mode, heating is done by a heat pump system.
• When the outside temperature is low or it is snowing, compared to con-

ventional vehicles, heating may be less effective and warm air may not
come out.

• If  frost  has  formed  of  the  outside  heat  exchanger,  the  heating  perfor-

mance  will  decline.  The  frost  can  be  removed  from  the  outside  heat
exchanger by operating the Remote Air Conditioning System before driv-
ing (

P. 535). When frosted over, the heating operation of the Remote

Air Conditioning System starts after defrosting.

• When 

 is turned on, the heating is controlled optimally. There-

fore,  the  set  heating  performance  may  not  be  achieved  even  if  the  fan
speed setting is increased.

In  the  following  situations  the  gasoline  engine  may  operate  in  order  to
extract heat from the engine coolant via the heater even in EV mode.
• The outside temperature is approximately 14°F (-10°C) or low

 is operating

Using automatic mode

Fan speed is adjusted automatically according to the temperature setting and
the ambient conditions.
Therefore, the fan may stop for a while until warm or cool air is ready to flow
immediately after 

 is pressed.

Water droplets during air conditioning operation

• When  the  outside  heat  exchanger  is

frosted over, fan speed declines and it
may become harder to heat the inte-
rior. However, it is not a malfunction. 
In  this  situation,  the  air  temperature
from the outlets may not change even
though the set temperature is raised.

The outside heat exchanger, accumulator
and air conditioning piping may incur con-
densation  or  frost  may  form.  During  or
after the air conditioning operation, water
droplets  may  fall  from  the  vehicle.  How-
ever, it is not a malfunction.

Outside heat exchanger

Outside heat exchanger

Accumulator

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Setting confirmation screen

Operation of automatic airflow control

In order to maintain a comfortable interior, airflow may be directed to seats
without  passengers  immediately  after  the  hybrid  system  is  started  and  at
other times depending on the outside temperature.

After  the  hybrid  system  is  started,  if  passengers  move  around  inside  or
enter/exit the vehicle, the system cannot accurately detect the presence of
passengers and automatic airflow control will not operate.

Operation of manual airflow control

Even if the function is manually switched to directing airflow to only the front
seats, when a rear seat is occupied, it may automatically direct airflow to all
seats.

To return to automatic airflow control

With the indicator off, turn the power switch off.
After 60 minutes or more elapse, turn the power switch to ON.

Front seat concentrated airflow mode (S-FLOW) operation

Changing settings using the multi-information display

The air conditioning system settings can be changed on the 

 screen of

the multi-information display. (

P. 241)

Fogging up of the windows

The windows will easily fog up when the humidity in the vehicle is high. 
Turning 

 on will dehumidify the air from the outlets and defog the

windshield effectively.

If you turn 

 off, the windows may fog up more easily.

The windows may fog up if the recirculated air mode is used.

When  changing  the  settings  of  the  air
conditioning system, the setting confirma-
tion screen is shown as a pop-up on the
multi-information display.
Press 

 of the meter control switches to

go back to the previous screen.

When 

  is  selected,  the  front  seat

concentrated airflow mode (S-FLOW) sta-
tus  is  displayed  on  the  multi-information
display.

1

2

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Windshield fog detection function

When automatic mode is set, the humidity sensor (

P. 534) detects fog on

the windshield and controls the air conditioning system to prevent fog.

When driving on dusty roads

Close all windows. If dust thrown up by the vehicle is still drawn into the vehi-
cle after closing the windows, it is recommended that the air intake mode be
set to outside air mode and the fan speed to any setting except off.

Outside/recirculated air mode

Setting to the recirculated air mode temporarily is recommended in prevent-
ing dirty air from entering the vehicle interior and helping to cool the vehicle
when the outside air temperature is high.

Outside/recirculated  air  mode  may  automatically  switch  depending  on  the
temperature setting or the inside temperature.

Fresh air intake system while parking

When  parking,  the  system  automatically  switches  to  outside  air  mode  to
encourage  better  air  circulation  throughout  the  vehicle,  helping  to  reduce
odors that occur when starting the vehicle.

Operation  of  the  air  conditioning  system  in  the  air  conditioning  eco
mode

In the air conditioning eco mode, the air conditioning system is controlled as
follows to prioritize fuel efficiency:
• Engine  speed  and  compressor  operation  controlled  to  restrict  heating/

cooling capacity

• Fan speed restricted when automatic mode is selected

To improve air conditioning performance, perform the following operations:
• Adjust the fan speed
• Adjust the temperature setting
• Turn off the air conditioning eco mode

When the driving mode is set to Eco driving mode, the air conditioning eco
mode will be turned on automatically. Even in this case, the air conditioning
eco mode can be turned off by selecting 

. (

P. 430)

When the outside temperature falls to nearly 32

F (0

C)

The  dehumidification  function  may  not  operate  even  when 

  is

selected.

When the outside temperature exceeds 75°F (24°C) and the air condition-
ing system is on

In order to reduce the air conditioning power consumption, the air condition-
ing system may switch to recirculated air mode automatically. This may also
reduce fuel consumption.

Recirculated air mode is selected as a default mode when the power switch
is turned to ON mode.

It  is  possible  to  switch  to  outside  air  mode  at  any  time  by  pressing

.

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Ventilation and air conditioning odors

To let the fresh air in, set the air conditioning system to the outside air mode.

During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning system. This may then cause odor to
be emitted from the vents. 

In  order  to  suppress  odors  that  occur  when  the  air  conditioning  system
starts, fresh air is automatically taken in when parked.

To reduce potential odors from occurring, the start timing of the blower may
be delayed for a short period of time immediately after the air conditioning
system is started in automatic mode.

Air conditioning filter

P. 640

Air conditioning system refrigerant

The meaning of each symbol on the label are as follows:

A  label  regarding  the  refrigerant  of  the
air conditioning system is attached to the
hood at the location shown in the follow-
ing illustration.

Caution

Air conditioning system

Air conditioning system lubricant type

Requires  registered  technician  to  service  air  conditioning
system

Flammable refrigerant

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Customization

Settings (e.g. A/C auto switching operation) can be changed. (Customizable
features: 

P. 753)

WARNING

To prevent the windshield from fogging up

Do not use 

 during cool air operation in extremely humid weather. The

difference between the temperature of the outside air and that of the wind-
shield  can  cause  the  outer  surface  of  the  windshield  to  fog  up,  blocking
your vision.

To prevent burns

Do not touch the rear view mirror surfaces when the outside rear view mirror
defoggers are on.

Do not place anything on the instrument
panel  which  may  cover  the  air  outlets.
Otherwise,  air  flow  may  be  obstructed,
preventing  the  windshield  defoggers
from defogging.

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