Toyota Prius Prime (2020 year). Owner's manual - part 19

296

4-2. Opening, closing and locking the doors

■

Certification for the smart key system



For vehicles sold in the U.S.A. and Hawaii

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4-2. Opening, closing and locking the doors

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

For vehicles sold in Canada

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4-2. Opening, closing and locking the doors

WARNING

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Caution regarding interference with electronic devices

●

People  with  implantable  cardiac  pacemakers,  cardiac  resynchronization
therapy-pacemakers or implantable cardioverter defibrillators should keep
away from the smart key system antennas. (

P. 290) 

The radio waves may affect the operation of such devices. If necessary,
the entry function can be disabled. Ask your Toyota dealer for details, such
as  the  frequency  of  radio  waves  and  timing  of  the  emitted  radio  waves.
Then, consult your doctor to see if you should disable the entry function.

●

Users  of  any  electrical  medical  device  other  than  implantable  cardiac
pacemakers,  cardiac  resynchronization  therapy-pacemakers  or  implant-
able  cardioverter  defibrillators  should  consult  the  manufacturer  of  the
device  for  information  about  its  operation  under  the  influence  of  radio
waves.
Radio  waves  could  have  unexpected  effects  on  the  operation  of  such
medical devices.

Ask your Toyota dealer for details on disabling the entry function.

299

4-3. Adjusting the seats

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Front seats



Manual seat

Seat position adjustment lever
Seatback  angle  adjustment
lever
Vertical height adjustment lever
(for driver’s side)



Power seat (if equipped for driver’s side)

Seat position adjustment switch
Seat  cushion  (front)  angle
adjustment switch
Vertical 

height 

adjustment

switch
Seatback  angle  adjustment
switch
Lumbar  support  adjustment
switch

Adjustment procedure

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2

3

1
2

3

4

5

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4-3. Adjusting the seats

■

When adjusting the seat
Take care when adjusting the seat so that the head restraint does not touch
the ceiling.

WARNING

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When adjusting the seat position

●

Take care when adjusting the seat position to ensure that other passen-
gers are not injured by the moving seat.

●

Do not put your hands under the seat or near the moving parts to avoid
injury. 
Fingers or hands may become jammed in the seat mechanism.

■

Seat adjustment

●

To  reduce  the risk  of sliding  under  the lap  belt during a  collision,  do  not
recline the seat more than necessary.
If the seat is too reclined, the lap belt may slide past the hips and apply
restraint  forces  directly  to  the  abdomen,  or  your  neck  may  contact  the
shoulder belt, increasing the risk of death or serious injury in the event of
an accident. 
Adjustments should not be made while driving as the seat may unexpect-
edly move and cause the driver to lose control of the vehicle.

●

Manual seats: After adjusting the seat, make sure that the seat is locked in
position.

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4-3. Adjusting the seats

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Rear seats

Park the vehicle in a safe place.

Apply the parking brake firmly (

P. 349) and shift the shift position to P.

(

P. 343)

Adjust the position of the front seat and the angle of the seatback.
(



P. 299)

Depending on the position of the front seat, if the seatback is folded back-
ward, it may interfere with the operation of the rear seat.

Lift  up  and  push  down  the  head  restraints  of  the  rear  outboard
seats, and lower the head restraint of the rear center seat. 
(



P. 303)

Stow the armrest of the rear seat if it is pulled out. (



P. 553)

This step is not necessary when operating the left side seat only.

Pull  the  seatback  lock  release
lever and fold the seatback down.

To  avoid  trapping  the  seat  belt
between the seat and the inside of
the  vehicle,  pass  the  seat  belt
inside the seat belt guide and then
return  the  seatback  securely  to
the locked position.

The seatbacks can be folded down.

Before folding down the seatbacks

Folding down the seatbacks

1

2

3

4

Returning the rear seatbacks

Seat belt guide

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4-3. Adjusting the seats

WARNING

■

When folding the seatbacks down
Observe the following precautions. Failure to do so may result in death or
serious injury.

●

Do not fold the seatbacks down while driving.

●

Stop the vehicle on level ground, apply the parking brake firmly and shift
the shift position to P.

●

Do not allow anyone to sit on a folded seatback or in the luggage compart-
ment while driving.

●

Do not allow children to enter the luggage compartment.

●

Do not operate the rear seat if it is occupied.

●

Be careful not to get feet or hands caught in the moving parts or joints of
the seats during operation.

●

Do not allow children to operate the seat.

■

After returning the seatback to the upright position
Observe the following precautions. Failure to do so may result in death or
serious injury.

●

Check that the seat belts are not twisted or caught in the seatback.

●

Make sure that the seatback is securely
locked  in  position  by  lightly  pushing  it
back and forth.
If  the  seatback  is  not  securely  locked,
the  red  marking  will  be  visible  on  the
seatback lock release lever. Make sure
that the red marking is not visible.

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4-3. Adjusting the seats

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Head restraints

Up

Pull the head restraints up.

Down

Push the head restraint down while
pressing the lock release button.

■

Rear outboard seats

To fold

Pull  the  head  restraint  up  while
pressing the lock release button.

To use

Lift up and push down the head
restraint to the lowest lock posi-
tion.

■

Rear center seat

Up

Pull the head restraints up.

Down

Push  the  head  restraint  down
while  pressing  the  lock  release
button.

Head restraints are provided for all seats.

Front seats

Lock release button

1

2

Rear seats

Lock release button

1

2

Lock release button

1

2

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4-3. Adjusting the seats

■

Removing the head restraints



Front and rear center seats



Rear outboard seats

■

Installing the head restraints



Front and rear center seats

Pull  the  head  restraint  up  while  pressing
the lock release button.

Pull the seatback lock release lever and
fold  down the  seatback until  it  reaches
the  position  where  the  head  restraints
can be removed.

Pull the head restraint up while pressing
the lock release buttons.

Align  the  head  restraint  with  the  installa-
tion  holes  and  push  it  down  to  the  lock
position.
Press  and  hold  the  lock  release  button
when lowering the head restraint.

Lock release button

1

2

Lock release 
buttons

Lock release button

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4-3. Adjusting the seats

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Rear outboard seats

■

Adjusting the height of the head restraints (front seats)

■

Adjusting the rear center seat head restraint
Always  raise  the  head  restraint  one  level  from  the  stowed  position  when
using.

Pull the seatback lock release lever and
fold  down the  seatback until  it  reaches
the  position  where  the  head  restraints
can be installed.

Align the head restraint with the installa-
tion holes and push it down to the low-
est lock position.

Make  sure  that  the  head  restraints  are
adjusted  so  that  the  center  of  the  head
restraint is closest to the top of your ears. 

WARNING

■

Head restraint precautions
Observe the following precautions regarding the head restraints. Failure to
do so may result in death or serious injury.

●

Use the head restraints designed for each respective seat.

●

Adjust the head restraints to the correct position at all times.

●

After  adjusting  the  head  restraints,  push  down  on  them  and  make  sure
they are locked in position.

●

Do not drive with the head restraints removed.

1

2

306

4-4. Adjusting the steering wheel and mirrors

Steering wheel

Hold  the  steering  wheel  and
push the lever down.

Adjust  to  the  ideal  position  by
moving the steering wheel hori-
zontally and vertically.

After  adjustment,  pull  the  lever  up
to secure the steering wheel.

To  sound  the  horn,  press  on  or
close to the 

 mark.

Adjustment procedure

IO44PH004

1

IO44PH005

2

Horn

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4-4. Adjusting the steering wheel and mirrors

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WARNING

■

Caution while driving
Do not adjust the steering wheel while driving.
Doing so may cause the driver to mishandle the vehicle and cause an acci-
dent, resulting in death or serious injury.

■

After adjusting the steering wheel
Make sure that the steering wheel is securely locked.
Otherwise,  the  steering  wheel  may  move  suddenly,  possibly  causing  an
accident,  and  resulting  in  death  or  serious  injury. Also,  the  horn  may  not
sound if the steering wheel is not securely locked.

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4-4. Adjusting the steering wheel and mirrors

Inside rear view mirror

The height of the rear view mirror can be adjusted to suit your driving
posture.
Adjust the height of the rear view
mirror by moving it up and down.



Manual anti-glare inside rear view mirror

Reflected light from the headlights of vehicles behind can be reduced
by operating the lever.

Normal position
Anti-glare position

The rear view mirror’s position can be adjusted to enable suffi-
cient confirmation of the rear view.

Adjusting the height of rear view mirror

Anti-glare function

1
2

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4-4. Adjusting the steering wheel and mirrors

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

Auto anti-glare inside rear view mirror

Responding  to  the  level  of  brightness  of  the  headlights  of  vehicles
behind, the reflected light is automatically reduced.
Changing  automatic  anti-glare
function mode
On/off

When  the  automatic  anti-glare
function is in ON mode, the indica-
tor illuminates.
The  function  will  set  to  ON  mode
each  time  the  power  switch  is
turned to ON mode.
Pressing the button turns the func-
tion  to  OFF  mode.  (The  indicator
also turns off.)

■

To  prevent  sensor  error  (vehicles  with  auto  anti-glare  inside  rear  view
mirror)

Indicator

To ensure that the sensors operate prop-
erly, do not touch or cover them.

WARNING

Do not adjust the position of the mirror while driving.
Doing  so  may  lead  to  mishandling  of  the  vehicle  and  cause  an  accident,
resulting in death or serious injury.

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4-4. Adjusting the steering wheel and mirrors

Outside rear view mirrors

To select a mirror to adjust, turn
the switch.

Left
Right

To adjust the mirror, operate the
switch.

Up
Right
Down
Left

Push the mirror back in the direc-
tion of the vehicle’s rear. 

Adjustment procedure

1

1
2

2

1
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3
4

Folding the mirrors

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4-4. Adjusting the steering wheel and mirrors

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■

Mirror angle can be adjusted when
The power switch is in ACCESSORY or ON mode.

■

When the mirrors are fogged up
The outside rear view mirrors can be cleared using the mirror defoggers. Turn
on the rear window defogger to turn on the outside rear view mirror defog-
gers. (

P. 504, 515)

WARNING

■

Important points while driving
Observe the following precautions while driving.
Failing  to  do  so  may  result  in  loss  of  control  of  the  vehicle  and  cause  an
accident, resulting in death or serious injury.

●

Do not adjust the mirrors while driving.

●

Do not drive with the mirrors folded.

●

Both the driver and passenger side mirrors must be extended and properly
adjusted before driving.

■

When a mirror is moving
To avoid personal injury and mirror malfunction, be careful not to get your
hand caught by the moving mirror.

■

When the mirror defoggers are operating
Do not touch the rear view mirror surfaces, as they can become very hot
and burn you.