2021 TOYOTA SIENNA HYBRID seats

851-4. Hybrid system
1
For safety and security
There are air intake vents under
the front seats for the purpose of
cooling the hybrid battery (trac-
tion battery). If the vent
becomes blocked, the hybrid
battery (traction battery) may
overheat, leading to a reduction
in hybrid battery (traction bat-
tery) output.
WARNING
●If a fire occurs in the hybrid
vehicle, leave the vehicle as
soon as possible. Never use a
fire extinguisher that is not
meant for electric fires. Using
even a small amount of water
may be dangerous.
●If your vehicle needs to be
towed, do so with four wheels
raised. If the wheels connected
to the electric motor (traction
motor) are on the ground when
towing, the motor may continue
to generate electricity. This may
cause a fire. ( P.462)
●Carefully inspect the ground
under the vehicle. If you find
that liquid has leaked onto the
ground, the fuel system may
have been damaged. Leave the
vehicle as soon as possible.
■Hybrid battery (traction bat-
tery)
●Never resell, hand over or mod-
ify the hybrid battery. To prevent
accidents, hybrid batteries that
have been removed from a dis-
posed vehicle are collected
through Toyota dealer. Do not
dispose of the battery yourself.
Unless the battery is properly col-
lected, the follo wing may occur,
resulting in dea th or serious
injury:
• The hybrid battery may be ille- gally disposed of or dumped,
and it is hazardous to the envi-
ronment or someone may touch
a high voltage part, resulting in
an electric shock.
• The hybrid battery is intended to be used exclusively with your
hybrid vehicle. If the hybrid bat-
tery is used out side of your
vehicle or modified in any way,
accidents such as electric
shock, heat generation, smoke
generation, an explosion and
electrolyte leakage may occur.
When reselling or handing over
your vehicle, the possibility of an
accident is extremely high
because the person receiving the
vehicle may not be aware of these
dangers.
●If your vehicle is disposed of
without the hybrid battery hav-
ing been removed, there is a
danger of serious electric shock
if high voltage parts, cables and
their connectors are touched. In
the event that your vehicle must
be disposed of, the hybrid bat-
tery must be disposed of by
your Toyota dealer or a qualified
service shop. If the hybrid bat-
tery is not disposed of properly,
it may cause electric shock that
can result in dea th or serious
injury.
Hybrid battery (traction
battery) air intake vents

127
3
3
Before driving
Before driving
3-1. Key informationKeys ............................ 128
3-2. Opening, closing and locking the doors
Front doors.................. 132
Sliding doors ............... 137
Back door .................... 150
Smart key system ....... 164
3-3. Adjusting the seats Front seats .................. 169
Rear seats................... 171
Driving position memory .................................. 178
Head restraints............ 182
3-4. Adjusting the steering wheel and mirrors
Steering wheel ............ 185
Inside rear view mirror 186
Digital Rear-view Mirror 188
Outside rear view mirrors .................................. 198
3-5. Opening, closing the win- dows and moon roof
Power windows ........... 201
Moon roof .................... 204

1403-2. Opening, closing and locking the doors
pulling the handle again will cause
the power sliding door to reverse its
operation direction.
■Using the inside door han-
dles
When the handle is operated,
the power sliding door will be
automatically and completely
opened/closed.
Operating the handle while the
power sliding door is operating
will cause the operation to stop.
1 Open
Unlock the sliding door before oper-
ating.
2Close
■Using the power sliding
door switches
Press and hold the switch to
open and close each sliding
door.
From front seats
Opens the left side power
sliding door.
Closes the left side power
sliding door.
Opens the right side power
sliding door.
Closes the right side power
sliding door.
Pressing the switch again while
the power sliding door is operat-
ing will cause the operation to
stop.
From second seats
Pressing the switch again while the
power sliding door is operating will
cause the operation to stop.
A
B
C
D

1543-2. Opening, closing and locking the doors
cause the operation to reverse.
However, the reverse operation
cannot be performed for the first
second after automatic operation
starts, even if the wireless remote
control switch is pressed again.
■Using the power back door
switch from front seats
Press and hold the switch to
open/close the back door.
Pressing the switch again while
the power back door is closing
will cause it to open again.
However, the reverse operation
cannot be performed for the first
second after automatic opera-
tion starts even if the switch is
pressed again.
■Using the back door opener
switch
When the back door is
unlocked: Press the back door opener switch.
When the back door is locked:
While carrying the electronic key
on your person, press and hold
the back door opener switch.
The power back door automatically
opens.
P r e s s i n g t h e s w i t c h w h i l e t h e p o w e r
back door is opening/closing stops
the operation.
■Using the power back door
switch on the back door
 Close
Press the switch.
The power back door automatically
closes.
P r e s s i n g t h e s w i t c h w h i l e t h e p o w e r
back door is operating will stop the
operation.
When the switch is pressed again
during the halted operation, the
back door will perfo rm the reverse

1693-3. Adjusting the seats
3
Before driving
3-3.Adjusting the seats
Manual seat (passenger’s
side only)Seat position adjustment
lever
Seatback angle adjustment
lever
Power seatSeat position adjustment
switch
Seatback angle adjustment
switch
Seat cushion (front) angle
adjustment switch (driver’s
side only)
Vertical height adjustment
switch (driver’s side only)
Lumbar support adjustment
switch (driver’s side only) (if
equipped)
Pelvic support adjustment
(driver’s side only) (if
equipped)
■When adjusting the seat
●Make sure that any surrounding
passengers or objects are not
contacting the seat.
●Take care when adjusting the seat
so that the head restraint does not
touch the ceiling.
Front seats
The seats can be adjusted
(longitudinally, vertically,
etc.). Adjust the seat to
ensure the correct driving
posture.
Adjustment procedure
A
B
A
B
C
D
E
F

1703-3. Adjusting the seats
■Power easy access system (if
equipped)
The driver’ seat and steering wheel
move in accordance with power
switch mode and the driver’ seat
belt condition. ( P.178)
■Jam protection function (vehi-
cles with driving position mem-
ory)
While the driving position is recalled
or the power easy access system is
operating, if an object is stuck
behind the front sea t, the front seat
will stop and then slightly move for-
ward.
When the jam protection function
operates, the seat stops at a posi-
tion other than the set seat position.
Check the seat position.
WARNING
■When adjusting the seat posi-
tion
●Take care when adjusting the
seat position to ensure that
other passengers 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.
●Make sure to leave enough
space around the feet so they
do not get stuck.
■Seat adjustment
●To reduce the risk of sliding
under the lap bel t during a colli-
sion, 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 unexpectedly move and
cause the driver to lose control
of the vehicle.
●Manual seat only: After adjust-
ing the seat, make sure that the
seat is locked in position.

1713-3. Adjusting the seats
3
Before driving
■Second seat
Except ottoman seat (7-pas-
senger models)Seatback angle adjustment
lever
Seat position adjustment
lever
Except ottoman seat (8-pas-
senger models)Seatback angle adjustment
lever
Seat position adjustment
lever
Ottoman seatSeatback angle adjustment
lever
Seat position adjustment
lever
Ottoman angle adjustment
Rear seats
Reclining adjustments and
folding the seatbacks can
be done with lever opera-
tion.
Adjustment procedure
A
B
A
B
A
B
C

1723-3. Adjusting the seats
lever
■Third seats
Seatback angle adjustment
strap
■When using the ottoman seats
(vehicles with o ttoman seats)
Adjust the angle of the cushion
while pulling the ottoman angle
adjustment lever.
If necessary, sli de the cushion to
adjust the ottoman to the desired
position.
WARNING
■Seat adjustment
●Be careful that the seat does
not hit passengers or luggage.
●To reduce the risk of sliding
under the lap bel t during a colli-
sion, 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
unexpectedly move and cause
the driver to lose control of the
vehicle.
■When adjusting the seat posi-
tion or the ottoman (vehicles
with Ottoman seats)
Make sure to leave enough space
around the feet so as not to get
them caught.
■When using the ottoman
(vehicles with Ottoman seats)
●Do not sit on the ottoman. Seat
belts may not be properly worn
which may result in death or
serious injury.
●Stow the ottoman when you get
in and out of the vehicle or when
the ottoman is n ot in use to
avoid stumbling over it.
●Do not use the ottoman feature
when the vehicle is in motion.
The ottoman feature should
only be used when the vehicle
is stationary. If the ottoman fea-
ture is in use during an accident
the lap belt may slide past the
hips. This could also result in
restraint forces being applied to
the abdomen or your neck may
contact the shoulder belt,
increasing the risk of death or
serious injury.