Page 138 of 672

138
SIENNA_OM_OM08007U_(U)
3-2. Opening, closing and locking the doors
■The power back door can be operated when (vehicles with power back
door)
●The shift lever is in P.
● The back door is unlocked.
■ Power back door operation ( vehicles with power back door)
● A buzzer sounds and the emergency flashers flash twice to indicate that the
back door is opening/closing.
● The back door can be opened and closed manually even when the power
back door main switch is off.
■ Jam protection function (veh icles with power back door)
● If anything obstructs the power back door while it is closing or opening, the
back door will automatically operate in the opposite direction.
● If the jam protection function operates during two consecutive closing oper-
ations, the back door will be stopped at that position.
■ Back door closer (if equipped)
In the event that the back door is left slightly open, the back door closer will
automatically close it to the fully closed position.
■ When the battery is disconnected
●The back door will be automatically locked after the battery is reconnected.
● The power back door (if equipped) must be initialized in order to ensure
proper operation.
Unlock the back door with the wireless remote control or door lock switch.
Close the back door completely by hand.
■ Conditions affecting the operation of the smart key system or wireless
remote control
P. 1 1 8
1
2
Page 140 of 672

140
SIENNA_OM_OM08007U_(U)
3-2. Opening, closing and locking the doors
WARNING
●Do not place your hands on the back door damper stay to close the back
door, and do not hang on the back door damper stay.
Doing so may cause hands to be caught or the back door damper stay to
break, causing an accident.
● If a bicycle carrier or similar heavy object is attached to the back door, it
may suddenly shut again after being opened, causing someone’s hands,
head or neck to be caught and injured. When installing an accessory part
to the back door, using a genuine Toyota part is recommended.
■ Back door closer (if equipped)
●Use caution when using the back door closer as it still operates when the
power back door system is canceled.
■ Power back door (vehicl es with power back door)
Observe the following precautions when operating the power back door.
Failure to do so may cause death or serious injury.
● Check the safety of the surrounding area to make sure there are no obsta-
cles or anything that could cause any of your belongings to get caught.
● If anyone is in the vicinity, make sure they are safe and let them know that
the back door is about to open or close.
● If the operating conditions of the power back door are no longer met, a
buzzer may sound and the back door may stop opening or closing. The
back door then has to be operated manually. Take extra care when on an
incline, as the back door may open or close abruptly.
● On an incline, the back door may suddenly shut after it opens. Make sure
the back door is fully open and secure.
●When closing the back door, take extra
care to prevent your fingers etc. from
being caught.
● When closing the back door, make sure
to press it lightly on its outer surface. If
the back door handle is used to fully
close the back door, it may result in
hands or arms being caught.
●In the event that the back door is left
slightly open, the back door closer will
automatically close it to the fully closed
position. It takes several seconds
before the back door closer begins to
operate. Be careful not to catch fingers
or anything else in the back door, as this
may cause bone fractures or other seri-
ous injuries.
Page 146 of 672

146
SIENNA_OM_OM08007U_(U)
3-2. Opening, closing and locking the doors
■Note for locking the doors
●Touching the door lock sensor while wearing gloves may delay or prevent
lock operation. Remove the gloves and touch the lock sensor again.
● When the lock operation is performed using the lock sensor, recognition sig-
nals will be shown up to two consecutive times. After this, no recognition
signals will be given.
● If the door handle becomes wet while the electronic key is within the effec-
tive range, the door may lock and unlock repeatedly. Place the key in a posi-
tion 6 ft. (2 m) or more separate from the vehicle while the vehicle is being
washed. (Take care to ensure that the key is not stolen.)
● If the electronic key is inside the vehicle and a door handle becomes wet
during a car wash, a message may be shown on the multi-information dis-
play and a buzzer will sound outside the vehicle. To turn off the alarm, lock
all the doors.
● The lock sensor may not work properly if it comes into contact with ice,
snow, mud, etc. Clean the lock sensor and attempt to operate it again, or
use the lock sensor on the lower part of the door handle.
● Fingernails may scrape against the door during operation of the door han-
dle. Be careful not to injure fingernails or damage the surface of the door.
■ Notes for the unlocking function
●Gripping the front door handle when wearing a glove may not unlock or lock
the door.
● A sudden approach to the effective range or door handle operation may pre-
vent the doors from being unlocked. In this case, return the door handle to
the original position and check that the doors have unlocked before pulling
the door handle.
● If there is another electronic key in the detection area, it may take slightly
longer to unlock the doors after one of the front door handles is gripped or
one of sliding door handles is pulled.
■ When the vehicle is not driven for extended periods
●To prevent theft of the vehicle, do not leave the electronic key within 6 ft.
(2 m) of the vehicle.
● The smart key system can be deactivated in advance. ( P. 629)
Page 150 of 672
150
SIENNA_OM_OM08007U_(U)
3-3. Adjusting the seats
When the occupant’s lower back
presses against the seatback dur-
ing a rear-end collision, the head
restraint moves slightly forward
and upward to help reduce the
risk of whiplash on the seat occu-
pant.
■ Active head restraints
Even small forces applied to the seatback may cause the head restraint to
move. When a locked head restraint is pushed up forcibly, the head restraint
inner structure may appear. This does not indicate a problem.
Active head restraints
ITN13N065
During
rear-end
collision
Inner structure
Page 165 of 672

SIENNA_OM_OM08007U_(U)
1653-3. Adjusting the seats
3
Operation of each component
■Power third seat (vehicles with power third seat)
● If the indicator light above the switches flashes three times when the folding/
returning switch is pressed, the folding operation will not start. Make sure
the shift lever is in P.
● If any of the following conditions occur while the seat is operating, the seat
operation will stop. The indicator light above the switches will flash three
times and a beep will sound for about 10 seconds:
• An object is caught between the seatback and seat cushion.
• The stowing switch is released.
• Other power third seat switch is pushed while operating the stowing
switch.
• The shift lever is moved from P when the engine switch is turned to the “ON” position (vehicles without a smart key system) or IGNITION ON
mode (vehicles with a smart key system).
If the engine is started during operating, the seat operation may also be
stopped.
To continue the folding operation, the seatback must be returned to its orig-
inal position first.
■ AUTO ACCESS SEAT (if equipped)
The AUTO ACCESS SEAT cannot be removed.
■ “3RD SEAT” warning light ( vehicles with power third seat)
The warning light comes on if the third
seat operation is not yet complete when
the engine switch is turned to the “ON”
position (vehicles without a smart key sys-
tem) or IGNITION ON mode (vehicles
with a smart key system).
Page 171 of 672

SIENNA_OM_OM08007U_(U)
1713-3. Adjusting the seats
3
Operation of each component
■To stop the position recall operation part-way through
Perform any of the following:
●Press the “SET” button.
● Press button “1” or “2”.
● Operate any of the seat adjustment switches (only cancels seat position
recall).
■ Operating the driving position memory after turning the engine switch
off
Recorded seat positions can be activated up to 180 seconds after the driver’s
door is opened and another 60 seconds after it is closed again.
■ In order to correctly use the dr iving position memory function
If a seat position is already in the furthest possible position and the seat is
operated in the same direction, the recorded position may be slightly different
when it is recalled.
Each electronic key can be registered to recall your preferred driving
position.
■Registering procedure
Record your driving position to button “1” or “2” before performing
the following:
Carry only the key you want to re gister, and then close the driver’s
door.
If 2 or more keys are in the vehicle, the driving position cannot be
recorded properly.
Check that the shift lever is in P.
Turn the engine switch to IGNITION ON mode.
Recall the driving position that you want to record.
While pressing the recalled
button, press and hold the
door lock switch (either lock
or unlock) until the signal
beeps.
Memory recall function
1
2
3
4
Page 179 of 672
1793-4. Adjusting the steering wheel and mirrors
3
Operation of each component
SIENNA_OM_OM08007U_(U)
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
Page 180 of 672
1803-4. Adjusting the steering wheel and mirrors
SIENNA_OM_OM08007U_(U)
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 engine switch is
turned to “ON” position (vehicles
without a smart key system) or
IGNITION ON mode (vehicles with
a smart key system).
Pressing the button turns the function 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.