Page 90 of 860
90 1-2. Opening, closing and locking the doors
SIENNA_U (OM45477U)
CAUTION
●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 fall closed 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.
●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.
Page 91 of 860

91
1-2. Opening, closing and locking the doors
1
Before driving
SIENNA_U (OM45477U)
CAUTION
■
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 (if equipped)
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 fall after it opens. Make sure the back
door is fully open and secure.
●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
serious injuries.
Page 92 of 860

92 1-2. Opening, closing and locking the doors
SIENNA_U (OM45477U)
CAUTION
●In the following situations, the power back door may detect an abnormali\
ty
and automatic operation may be stopped. In this case, the back door has
to be operated manually. Take extra care when on an incline, as the back
door may open or close abruptly.
• When the back door contacts an obstacle
• Vehicles without a smart key system:
When the battery voltage suddenly drops, such as when the engine
switch is turned to the “ON” position or the engine is started during
automatic operation
Vehicles with a smart key system:
When the battery voltage suddenly drops, such as when the “ENGINE
START STOP” switch is turned to the IGNITION ON mode or the
engine is started during automatic operation
● If a bicycle carrier or similar heavy object is attached to the back door, the
power back door may not operate, causing itself to malfunction, or the
back door may fall closed again after being opened, causing someone’s
hands, head or neck to be caught and injured. When installing an acces-
sory part to the back door, using a genuine Toyota part is recommended.
Page 93 of 860

93
1-2. Opening, closing and locking the doors
1
Before driving
SIENNA_U (OM45477U)
CAUTION
■
Jam protection function (vehicles with power back door)
Observe the following precautions.
Failure to do so may cause death or serious injury.
● Although the back door stops closing when the jam protection function
detects an object, take extra care as you may still be injured if part of your
body is already caught.
● Never use any part of your body to intentionally activate the jam protection
function.
● The jam protection function may not work if something gets caught just
before the back door fully closes. Be careful not to catch fingers or any-
thing else.
● The jam protection function may not work depending on the shape of the
object that is caught. Be careful not to catch fingers or anything else.
NOTICE
■To prevent damage to the power back door
● Make sure that there is no ice between the back door and frame that
would prevent movement of the back door. Operating the power back door
when excessive load is present on the back door may cause a malfunc-
tion.
● Do not apply excessive force to the back door while the power back door
is operating.
● Take care not to damage the sensors (installed on the right and left edges
of the power back door) with a knife or other sharp object. If the sensor is
disconnected, the power back door will not operate in automatic operation.
Page 94 of 860
94 1-2. Opening, closing and locking the doors
SIENNA_U (OM45477U)
NOTICE
■Back door damper stays
The back door is equipped with damper stays that hold the back door in
place.
Observe the following precautions.
Failure to do so may cause damage to the back door damper stay, resulting
in malfunction.
■ To prevent back door closer malfunction
Do not apply excessive force to the back door while the back door closer is
operating.
● Do not attach any foreign objects, such
as stickers, plastic sheets, or adhesives
to the damper stay rod.
● Do not touch the damper stay rod with
gloves or other fabric items.
● Do not attach any accessories other
than genuine Toyota parts to the back
door.
● Do not place your hand on the damper
stay or apply lateral forces to it.
Damper stay
Page 99 of 860

99
1-3. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
SIENNA_U (OM45477U)
■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.
CAUTION
■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 reclined too far, 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 seat: After adjusting the seat, make sure that the seat is locked in
position.
ITN13N066
During
rear-end
collision
Inner structure
Page 103 of 860
103
1-3. Adjustable components (s
eats, mirrors, steering wheel)
1
Before driving
SIENNA_U (OM45477U)■
Getting out of the vehicle
Tip-up seats Pull the strap and fold down the
seatback. The cushion will tip up.
The seat can slide forward.
Move the seat to the frontmost
position.
Make sure that no passenger is
seated on the second seat before
pulling the strap.
Ottoman seats
Pull the strap and fold down the
seatback. The seat can slide for-
ward.
Move the seat to the frontmost
position.
Make sure that no passenger is
seated on the second seat before
pulling the strap.
■ After passengers have entered/exited the vehicle
Lift up the seatback and slide th e seat backward until it locks.
Page 104 of 860
104 1-3. Adjustable components (seats, mirrors, steering wheel)
SIENNA_U (OM45477U)
Removing the second seats
■ Removing the second outside seats (Tip-up seats)
Pull the armrests up.
Pull the seatback adjustment
lever and fold down the seat-
back. The cushion will tip up.
Slide the seat forward to a lock position. Pull the release lever under the
cushion and simultaneously lift
the seat to remove.
STEP1
STEP2
STEP3