
271-1. For safe use
SIENNA_OM_OM08007U_(U)
1
For safety and security
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
●Do not adjust the position of the driver’s seat while driving.
Doing so could cause the driver to lose control of the vehicle.
● Do not place a cushion between the driver or passenger and the seatback.
A  cushion  may  prevent  correct  posture  from  being  achieved,  and  reduce
the effectiveness of the seat belt and head restraint.
● Do not place anything under the front seats.
Objects  placed  under  the  front  seats  may  become  jammed  in  the  seat
tracks  and  stop  the  seat  from  locking  in  place.  This  may  lead  to  an  acci-
dent and the adjustment mechanism may also be damaged.
● Always observe the legal speed limit when driving on public roads.
● When  driving  over  long  distances,  take  regular  breaks  before  you  start  to
feel tired.
Also, if  you feel  tired  or  sleepy  while driving,  do not force yourself  to con-
tinue driving and take a break immediately. 

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SIENNA_OM_OM08007U_(U)
3-3. Adjusting the seats
3
Operation of each component
Front seats
Manual seat
Seat position adjustment lever
Seatback angle adjustment lever
Vertical height adjustment lever (driver’s side only)
Lumbar support adjustment  switch (driver’s side only)*
*: If equipped
Power seat
Seat position adjustment switch
Seatback angle adjustment switch
Seat cushion (front) angle adjust ment switch (driver’s side only)
Vertical height adjustment switch (driver’s side only)
Lumbar support adjustment switch (driver’s side only)
Adjustment procedure
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3
4
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2
3
4
5 

SIENNA_OM_OM08007U_(U)
1513-3. Adjusting the seats
3
Operation of each component
WARNING
■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.
● Make sure to leave enough space around the feet so they do not get stuck.
■ Seat adjustment
●Be careful that the seat does not hit passengers or luggage.
● 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. 

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SIENNA_OM_OM08007U_(U)
3-3. Adjusting the seats
WARNING
■When folding the rear 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,  set  the  parking  brake  and  shift  the  shift
lever 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.
● Be careful not to get any part of your body pinched by a seat.
■ Seat adjustment
●Be careful that the seat does not hit passengers or luggage.
● 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.
■ After returning the rear seatbacks or installing seats
Observe  the  following  precautions.  Failure  to  do  so  may  result  in  death  or
serious injury.
●Make sure the seatback is securely locked by pushing it forward and rear-
ward on the top.
● Check that the seat belts are not twisted or caught in the seatback.
● Make sure the seat is locked in place by trying to shake the seatback and
lift up the seat cushion.
■ Removing the second seats
●Do not leave a seat in the vehicle if it has been disengaged from the floor.
● Do not sit on or place anything on a seat that has been removed from the
vehicle. 

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
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SIENNA_OM_OM08007U_(U)
3-3. Adjusting the seats
■Recall procedure
Carry  the  electronic  key  that  has been  registered  to  the  driving
position,  and  then  unlock  and  open  the  driver’s  door  using  the
smart key system or wi reless remote control.
The driving position will move to the recorded position.
If the driving position is in a position that has already been recorded, the
seat and outside rear view mirrors will not move.
■
Cancelation procedure
Carry  only  the  key  you  want  to  cancel  and  then  close  the  driver’s
door.
If  2  or  more  keys  are  in  the  vehicle,  the  driving  position  cannot  be
canceled properly.
Check that the shift lever is in P.
Turn the engine switch to IGNITION ON mode.
While  pressing  the  “SET”  button,  press  and  hold  the  door  lock
switch (either lock or unlock) until the signal beeps twice.
If  the  button  could  not  be  canceled,  the  signal  beeps  continuously  for
approximately 3 seconds.
■Recalling the driving position us ing the memory recall function
● Different  driving  positions  can  be  registered  for  each  electronic  key.  There-
fore,  the  driving  position  that  is  recalled  may  be  different  depending  on  the
key being carried.
● If a door other than the driver’s door is unlocked with the smart key system,
the  driving  position  cannot  be  recalled.  In  this  case,  press  the  driving  posi-
tion button which has been set.
■ Customization
The unlock door settings of the memory recall function can be customized. 
(Customizable features:  P. 630)
WARNING
■Seat adjustment caution
Take  care  during  seat  adjustment  so  that  the  seat  does  not  strike  the  rear
passenger or squeeze your body against the steering wheel.
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SIENNA_OM_OM08007U_(U)
4336-3. Using the storage features
6
Interior features
WARNING
■Console box adjustment  precaution (type B)
● Do not adjust the position of the console box while the vehicle is moving. 
This  may  cause  the  driver  to  mishandle  the  vehicle  and  may  lead  to  an
accident that results in death or serious injury.
● Be careful not to get hands  or  feet  pinched between the console  box and
the rear sliding console or rear seat.
● Be careful not to allow the console box to hit any passenger while adjust-
ing its position.
● After adjusting the console box, make sure it is securely locked in position. 

660Alphabetical index
SIENNA_OM_OM08007U_(U)
Flat tire.............................. 570, 572
Floor mats .................................. 24
FluidAutomatic transaxle .............. 605
Brake .................................... 491
Transfer ................................ 605
Washer ................................. 495
Fog lights
Light switch ........................... 252
Replacing light bulbs............. 523
Wattage ................................ 608
Front automatic air  conditioning system ............. 412
Front doors .............................. 110
Front passenger occupant 
classification system .............. 50
Front seats ............................... 149
Adjustment ............................ 149
Cleaning................................ 471
Correct driving posture ........... 26
Driver’s seat position memory .............................. 169
Head restraints ..................... 173
Power easy access 
system ......... ....................... 169
Seat heaters ......................... 424
Seat position memory ........... 169
Front side marker lights Light switch ........................... 242
Replacing light bulbs..... 525, 527
Wattage ................................ 608
Front turn signal lights Replacing light bulbs..... 525, 526
Turn signal lever ................... 240
Wattage ................................ 608 Fuel
Capacity................................ 602
Fuel gauge.............................. 88
Fuel pump shut off system ... 544
Gas station information......... 672
Information............................ 609
Refueling .............................. 259
Type...................................... 602
Warning light......................... 547
Warning message................. 563
Fuel consumption 
information ............................ 100
Fuel filler door ......................... 259 Refueling .............................. 259
Fuel pump shut off system..... 544
Fuses ........................................ 514
Garage door opener ................ 452
Gauges ....................................... 87
Glove box ................................. 431
Grocery bag hooks.................. 451
F
G