
791-2. Theft deterrent system
SIENNA_OM_OM08013U_(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. 

SIENNA_OM_OM08013U_(U)
832. Instrument cluster
2
Instrument cluster
Warning  lights  inform  the  driver  of malfunctions  in  the  indicated  vehi-
cle’s systems.
Warning lights
*1
(U.S.A.)
Brake system warning 
light ( P. 541)
*1Electric power steering 
system warning light 
(P. 542)
*1
(Canada)
Brake system warning 
light ( P. 541)
*1, 2, 3
Pre-collision system 
warning light ( P. 542)
*1, 2Charging system 
warning light (P. 541)*1
Slip indicator ( P. 542)
*1, 2Low engine oil pressure 
warning light
 (P. 541)
*2Open door warning light 
( P. 543)
*1
(U.S.A.)
Malfunction indicator 
lamp ( P. 541) Low fuel level warning 
light (
P. 543)
*1
(Canada)
Malfunction indicator 
lamp ( P. 541) Seat belt reminder light 
(
P. 543)
*1SRS warning light 
(P. 542)*1Master warning light 
(P. 543)
*1
(U.S.A.)
ABS warning light 
(P. 542)
*1
Tire pressure warning 
light ( P. 543)
*1
(Canada)
ABS warning light 
(P. 542)
*2
Third seat warning light 
(P. 543) 

SIENNA_OM_OM08013U_(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. 427)
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. 507)
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. 565)
● 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. 507)
• 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 

SIENNA_OM_OM08013U_(U)
1453-2. Opening, closing and locking the doors
3
Operation of each component
■Battery-saving function
In  the  following  circumstances,  the  entry  function  is  disabled  in  order  to  pre-
vent the vehicle battery from discharging and the electronic key battery from
discharging.
●When the entry function has not been used for 5 days or more
● When the electronic key has been left within approximately 6 ft. (2 m) of the
vehicle for 10 minutes or more
● If the entry function has not been used for 14 days or more, the vehicle can-
not be unlocked by a door other than the driver’s door. To unlock the vehicle,
grip  the  driver’s  door  handle  or  use  the  wireless  remote  control  or  the
mechanical key.
The system will resume operation when...
● The vehicle is locked using the lock sensor when carrying the electronic key
on your person.
● The vehicle is locked/unlocked using the wireless remote control. ( P.   1 1 1 )
● The vehicle is locked/unlocked using the mechanical key. ( P. 585)
■ Conditions affecting operation
P.   1 1 9
■ Notes for the entry function
●Even when the electronic key is within the effective range (detection areas),
the system may not operate properly in the following cases.
• The electronic key is too close to the window or outside door handle, near
the ground, or in a high place when the doors are locked or unlocked.
• The  electronic  key  is  on  the  instrument  panel,  floor  or  in  the  glove  box
when the engine is started or engine switch modes are changed.
● Do  not  leave  the  electronic  key  on  top  of  the  instrument  panel  or  near  the
door pockets when exiting the vehicle. Depending on the radio wave recep-
tion conditions, it may be detected by the antenna outside the cabin and the
door will become lockable from the outside, possibly trapping the electronic
key inside the vehicle.
● As long as the electronic key is within the effective range, the doors may be
locked or unlocked by anyone. However, only the doors detecting the elec-
tronic key can be used to unlock the vehicle.
● The  doors  may  unlock  or  lock  if  a  large  amount  of  water  splashes  on  the
door handle, such as in the rain or in a car wash when the electronic key is
within  the  effective  range.  (The  doors  will  automatically  be  locked  after
approximately 60 seconds if the doors are not opened and closed.)
● If  the  wireless  remote  control  is  used  to  lock  the  doors  when  the  electronic
key  is  near  the  vehicle,  there  is  a  possibility  that  the  door  may  not  be
unlocked  by  the  smart  key  system.  (Use  the  wireless  remote  control  to
unlock the doors.)
● If power slide door is unable to operate due to prohibition by the power slid-
ing  door  main  switch,  the  door  unlock  and  open  operation  will  not  be  per-
formed. ( P. 124) 

218
SIENNA_OM_OM08013U_(U)
4-1. Before driving
●Reversing with a trailer attached is difficult and requires practice. 
Grip  the  bottom  of  the  steering  wheel  and  move  your  hand  to  the
left  to  move  the  traile r  to  the  left.  Move  your  hand  to  the  right  to
move the trailer to the right. (This is generally opposite to reversing
without  a  trailer  attached.)  Avoid  sharp  or  prolonged  turning.  Have
someone  guide  you  when  reversing  to   reduce  the  risk  of  an  acci-
dent.
● As stopping distance is increased when towing a trailer, vehicle-to-
vehicle  distance  should  be  increa sed.  For  each  10  mph  (16  km/h)
of speed, allow at least one vehicle and trailer length.
● Avoid sudden braking as  you may skid, resulting in the trailer jack-
knifing and a loss of vehicle contro l. This is especially true on wet or
slippery surfaces.
● Avoid jerky starts or sudden acceleration.
● Avoid jerky steering and sharp turns, and slow down before making
a turn.
● Note that when making a turn, the trailer wheels will be closer than
the vehicle wheels to the inside of the turn. Compensate by making
a wider than normal turning radius.
● Slow down before making a turn, in crosswinds, on wet or slippery
surfaces, etc. 
Increasing vehicle speed can destabilize the trailer.
● Take care when passing other vehicles. Passing requires consider-
able  distance.  After  passing  a  vehicle,  do  not  forget  the  length  of
your  trailer,  and  be  sure  you  hav e  plenty  of  room  before  changing
lanes.
● To  maintain  engine  braking  effici ency  and  charging  system  perfor-
mance  when  using  engine  braking,  do  not  put  the  transmission  in
D. If in the S mode, transmission shift range position must be in 4 or
lower.
● Instability happens more  frequently when descending steep or long
downhill grades. Before descending, slow down and downshift. Do
not make sudden downshifts while descending steep or long down-
hill grades.
● Avoid holding the brake pedal down too long or applying the brakes
too frequently. This could cause th e brakes to overheat and result in
reduced braking efficiency. 

3965-10. Bluetooth®
SIENNA_OM_OM08013U_(U)■
Bluetooth
® antenna
The antenna is built into the display. 
If the Bluetooth
® device is behind the seat or in the glove box or console box,
or is touching or covered by metal objects, the connection status may deterio-
rate.
■ Battery charge/signal status
●This  display  may  not  correspond  exactly  with  the  portable  audio  player  or
cellular phone itself.
● This system does not have a charging function.
● The  portable  audio  player  or  cellular  phone  battery  will  be  depleted  quickly
when the device is connected to Bluetooth
®.
■ When using the Bluetooth
® audio and hands-free system at the same
time
The following problems may occur.
● The Bluetooth
® audio connection may be interrupted.
● Noise may be heard during Bluetooth
® audio playback.
■ About the contact in this system
The  following  data  is  stored  for  every  registered  cellular  phone.  When
another phone is connecting, you cannot read the registered data.
●Contact data
● Call history
● Favorite
● Message
When  removing  a  Bluetooth
®  phone  from  the  system,  the  above-mentioned
data is also deleted.
■ About Bluetooth
®
The  Bluetooth®  word  mark  and  logos  are
registered  trademarks  owned  Bluetooth
SIG,  Inc.  and  any  use  of  such  marks  by
PIONEER  CORPORATION  is  under
license.  Other  trademarks  and  trade
names  are  those  of  their  respective  own-
ers. 

SIENNA_OM_OM08013U_(U)
4897-3. Do-it-yourself maintenance
7
Maintenance and care
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following before recharging:
●If recharging with the battery installed on the vehicle, be sure to disconnect
the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the battery.
■ After recharging/reconnecting the ba ttery (vehicles with a smart key sys-
tem) 
● Unlocking the doors using the smart key system may not be possible imme-
diately  after  reconnecting  the  battery.  If  this  happens,  use  the  wireless
remote control or the mechanical key to lock/unlock the doors.
● Start the engine with the engine switch in ACCESSORY mode. The engine
may  not  start  with  the  engine  switch  turned  off.  However,  the  engine  will
operate normally from the second attempt.
● The  engine  switch  mode  is  recorded  by  the  vehicle.  If  the  battery  is  recon-
nected, the vehicle will return the engine switch mode to the status it was in
before  the  battery  was  disconnected.  Make  sure  to  turn  off  the  engine
before  disconnecting the battery. Take extra care  when connecting the bat-
tery if the engine switch mode prior to discharge is unknown.
If  the  system  will  not  start  even  after  multiple  attempts,  contact  your  Toyota
dealer.
■ Disconnecting the batt ery (vehicles with an AUTO ACCESS SEAT)
Do not disconnect the battery while operating the AUTO ACCESS SEAT. The
AUTO ACCESS SEAT will become inoperable. 
For details, refer to “AUTO ACCESS SEAT OWNER’S MANUAL”. 

490
SIENNA_OM_OM08013U_(U)
7-3. Do-it-yourself maintenance
WARNING
■Chemicals in the battery
Batteries  contain  poisonous  and  corrosive  sulfuric  acid  and  may  produce
hydrogen gas which is flammable and explosive. To reduce the risk of death
or serious injury, take the following precautions while working on or near the
battery:
●Do not cause sparks by touching the battery terminals with tools.
● Do not smoke or light a match near the battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the battery.
● Keep children away from the battery.
■ Where to safely charge the battery
Always  charge  the  battery  in  an  open  area.  Do  not  charge  the  battery  in  a
garage or closed room where there is insufficient ventilation.
■ How to recharge the battery
Only  perform  a  slow  charge  (5  A  or  less).  The  battery  may  explode  if
charged at a quicker rate.
■ Emergency measures regarding electrolyte
●If electrolyte gets in your eyes
Flush  your  eyes  with  clean  water  for  at  least  15  minutes  and  get  immedi-
ate medical attention. If possible, continue to apply water with a sponge or
cloth while traveling to the nearest medical facility.
● If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.
● If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.
● If you accidentally swallow electrolyte
Drink  a  large  quantity  of  water  or  milk.  Get  emergency  medical  attention
immediately.
NOTICE
■When recharging the battery
Never  recharge  the  battery  while  the  engine  is  running.  Also,  be  sure  all
accessories are turned off.