Page 2 of 672

TABLE OF CONTENTS2
SIENNA_OM_OM08007U_(U)For your information....................... 8
Reading this manual .................... 12
How to search .............................. 13
Pictorial index .............................. 14
1-1. For safe use
Before driving ...................... 24
For safety drive ................... 26
Seat belts ............................ 28
SRS airbags ........................ 36
Front passenger occupant classification system ......... 50
Safety information  for children ........................ 55
Child restraint systems ........ 56
Installing child restraints ...... 60
Exhaust gas precautions ..... 74
1-2. Theft deterrent system Engine immobilizer system............................... 75
Alarm ................................... 77 2. Instrument cluster
Warning lights and indicators ........................... 82
Gauges and meters ............. 87
Multi-information display  (with monochrome 
display) .............................. 90
Multi-information display  (with color display)............. 93
Fuel consumption  information....................... 100
3-1. Key information Keys................................... 104
3-2. Opening, closing and  locking the doors
Front doors ........................ 110
Sliding doors ...................... 121
Back door .......................... 133
Smart key system .............. 143
3-3. Adjusting the seats Front seats......................... 149
Rear seats ......................... 152
Driving position memory .... 169
Head restraints .................. 173
1For safety and security
2Instrument cluster
3Operation of each 
component 
     
        
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23
SIENNA_OM_OM08007U_(U)
For safety and security1
1-1. For safe useBefore driving ...................... 24
For safety drive ................... 26
Seat belts ............................ 28
SRS airbags ........................ 36
Front passenger occupant classification system ......... 50
Safety information  for children ........................ 55
Child restraint systems........ 56
Installing child restraints...... 60
Exhaust gas precautions..... 74
1-2. Theft deterrent system Engine immobilizer system .............................. 75
Alarm................................... 77 
     
        
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771-2. Theft deterrent system
SIENNA_OM_OM08007U_(U)
1
For safety and security
Alar m
The  alarm  uses  light  and  sound  to  give  an  alert  when  an  intrusion  is
detected.
The  alarm  is  triggered  in  the  following  situations  when  the  alarm  is
set:
●A  locked  door  is  unlocked  or  opened  in  any  way  other  than  using
the  entry  function  (vehicles  with   a  smart  key  system)  or  wireless
remote control. (The doors will lock again automatically.)
● The hood is opened.
Close  the  doors  and  hood,  and
lock  all  the  doors  using  the  entry
function (vehicles with a smart key
system)  or  wireless  remote  con-
trol.  The  system  will  be  set  auto-
matically after 30 seconds.
The  indicator  light  changes  from
being  on  to  flashing  when  the  sys-
tem is set.
Do one of the following to deactivate or stop the alarm:
● Unlock the doors using the entry function (vehicles with a smart key
system) or wireless  remote control.
● Vehicles without a smart key system : Turn the engine switch to the
“ACC” or “ON” position, or start the engine. 
Vehicles  with  a  smart  key  system:  Turn  the  engine  switch  to
ACCESSORY or IGNITION ON mode, or start the engine. 
(The alarm will be deactivated  or stopped after a few seconds.)
: If equipped
The alarm
Setting the alarm system
Deactivating or stopping the alarm 
     
        
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781-2. Theft deterrent system
SIENNA_OM_OM08007U_(U)
■System maintenance
The vehicle has a maintenance-free type alarm system.
■ Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of
the following:
●Nobody is in the vehicle.
● The windows and moon roof (if equipped) are closed before the alarm is set.
● No valuables or other personal items are left in the vehicle.
■ Triggering of the alarm
The alarm may be triggered in the following situations.
(Stopping the alarm deactivates the alarm system.)
●The doors are unlocked using the key.
● A person inside the vehicle opens a door
or hood.
● The  battery  is  recharged  or  replaced
when the vehicle is locked. ( P. 590) 
     
        
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791-2. Theft deterrent system
SIENNA_OM_OM08007U_(U)
1
For safety and security
■Alarm-operated door lock
In  the  following  cases,  depending  on  the  situations,  the  door  may  automati-
cally lock to prevent improper entry into the vehicle:
●When  a  person  left  in  the  vehicle  tr iggers  the  alarm  by  unlocking  a  door  or
the back door.
● When a person left in the vehicle unlocks a door or the back door while the
alarm is operating.
● When recharging or replacing the battery.
NOTICE
■ To ensure the system  operates correctly
Do  not  modify  or  remove  the  system.  If  modified  or  removed,  the  proper
operation of the system cannot be guaranteed. 
     
        
        Page 105 of 672
SIENNA_OM_OM08007U_(U)
1053-1. Key information
3
Operation of each component
Vehicles without a smart key system (type A)
Locks all doors (P.   1 1 1 )
Unlocks all doors ( P.   1 1 1 )
Sounds the alarm ( P. 106)
Vehicles without a smart key system (type B)
Locks all doors ( P.   1 1 1 )
Unlocks all doors ( P.   1 1 1 )
Opens  and  closes  the  left  side
power sliding door ( P. 124)
Opens and closes the right side
power sliding door ( P. 124)
Opens  and  closes  the  power
back door
* (  P. 135)
Sounds the alarm ( P. 106)
*: If equipped
Vehicles with a smart key system
Locks all doors ( P.   1 1 1 )
Unlocks all doors ( P.   1 1 1 )
Opens  and  closes  the  left  side
power sliding door ( P. 124)
Opens and closes the right side
power sliding door ( P. 124)
Opens  and  closes  the  power
back door ( P. 135)
Sounds the alarm ( P. 106)
Wireless remote control
1
2
3
1
2
3
4
5
6
1
2
3
4
5
6 
     
        
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106
SIENNA_OM_OM08007U_(U)
3-1. Key information
To  take  out  the  mechanical  key,
push  the  release  button  and  take
the key out.
The  mechanical  key  can  only  be
inserted  in  one  direction,  as  the
key  only  has  grooves  on  one  side.
If  the  key  cannot  be  inserted  in  a
lock  cylinder,  turn  it  over  and  re-
attempt to insert it.
After  using  the  mechanical  key,  store  it  in  the  electronic  key.  Carry  the
mechanical  key  together  with  the  electronic  key.  If  the  electronic  key  bat-
tery  is  depleted  or  the  entry  function  does  not  operate  properly,  you  will
need the mechanical key. (P. 588)
■Panic mode
Vehicles without a smart key system
Vehicles with a smart key system
Using the mechanical key (vehic les with a smart key system)
When    is  pressed  for  longer  than
about  one  second,  an  alarm  will  sound
intermittently  and  the  vehicle  lights  will
flash  to  deter  any  person  from  trying  to
break into or damage your vehicle.
To stop the alarm, press any button on the
wireless remote control.
When    is  pressed  for  longer  than
about  one  second,  an  alarm  will  sound
intermittently  and  the  vehicle  lights  will
flash  to  deter  any  person  from  trying  to
break into or damage your vehicle.
To stop the alarm, press any button on the
electronic key. 
     
        
        Page 107 of 672

SIENNA_OM_OM08007U_(U)
1073-1. Key information
3
Operation of each component
■When required to leave the vehicle’s key with a parking attendant
Lock the glove box as circumstances demand. ( P. 431)
On  vehicles  without  the  smart  key  system,  provide  the  attendant  with  the
valet key.
On  vehicles  with  the  smart  key  system,  remove  the  mechanical  key  for  your
own use and provide the attendant with the electronic key only.
■ If you lose your keys
New  genuine  keys  can  be  made  by  your  Toyota  dealer  using  a  master  key
(vehicles without a smart key system) or  the other key (vehicles with a smart
key  system)  and  the  key  number  stam ped  on  your  key  number  plate.  Keep
the plate in a safe place such as your wallet, not in the vehicle.
■ When riding in an aircraft
When  bringing  a  key  with  wireless  remote  control  function  onto  an  aircraft,
make  sure  you  do  not  press  any  buttons  on  the  key  while  inside  the  aircraft
cabin. If you are carrying the key in your bag etc., ensure that the buttons are
not likely to be pressed accidentally. Pressing a button may cause the key to
emit radio waves that could interfere with the operation of the aircraft.
■ Conditions affecting the operation of  the smart key system or wireless
remote control
P.   1 1 8
■ Key battery depletion
Vehicles without a smart key system
If  the  wireless  remote  control  function  does  not  operate,  the  battery  may  be
depleted. Replace the battery when necessary. (P. 511)
Vehicles with a smart key system
● The standard battery life is 1 to 2 years.
● If the battery becomes low, an alarm will sound in the cabin when the engine
stops. ( P. 569)
● As the electronic  key always receives radio waves, the battery will become
depleted even if the electronic key is not used. The following symptoms indi-
cate  that  the  electronic  key  battery  may  be  depleted.  Replace  the  battery
when necessary. ( P. 511)
• The smart key system or the wireless remote control does not operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
● To  avoid  serious  deterioration,  do  not  leave  the  electronic  key  within  3 ft.
(1 m) of the following electrical appliances that produce a magnetic field.
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Induction cookers
• Table lamps