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 
     
        
        Page 26 of 672

261-1. For safe use
SIENNA_OM_OM08007U_(U)
For safety drive
Adjust  the  angle  of  the  seat-
back  so  that  you  are  sitting
straight  up  and  so  that  you  do
not  have  to  lean  forward  to
steer. (P. 149)
Adjust  the  seat  so  that  you  can
depress the  pedals  fully  and so
that  your  arms  bend  slightly  at
the  elbow  when  gripping  the
steering wheel. ( P. 149)
Lock the head restraint in place with  the center of the head restraint
closest to the top of your ears. ( P. 173)
Wear the seat belt correctly. ( P.   2 8 )
Make sure that all occupants are wearing their seat belts before driv-
ing the vehicle. ( P.   2 8 )  
Use  a  child  restraint  system  appropriate  for  the  child  until  the  child
becomes large enough to properly wear the vehicle’s seat belt. 
(  P. 56)
Make  sure  that  you  can  see  backwar d  clearly  by  adjusting  the  inside
and outside rear view mirrors properly. ( P. 179, 181)
For safe driving, adjust the seat and mirror to an appropriate
position before driving.
Correct driving posture
1
2
Correct use of the seat belts
Adjusting the mirrors
3
4 
     
        
        Page 32 of 672

321-1. For safe use
SIENNA_OM_OM08007U_(U)
■Emergency locking retractor (ELR)
The retractor will lock the belt during a sudden stop or on impact. It may also
lock if you lean forward too quickly. A slow, easy motion will allow the belt to
extend so that you can move around fully.
■ Automatic locking retractor (ALR)
When a passenger’s shoulder belt is completely extended and then retracted
even slightly, the belt is locked in that position and cannot be extended. This
feature is used to hold the child restraint system (CRS) firmly. To free the belt
again, fully retract the belt and then pull the belt out once more. ( P. 60)
■ Child seat belt usage
The  seat  belts  of  your  vehicle  were  principally  designed  for  persons  of  adult
size.
●Use  a  child  restraint  system  appropriate  for  the  child,  until  the  child
becomes large enough to properly wear the vehicle’s seat belt. ( P. 56)
● When  the  child  becomes  large  enough  to  properly  wear  the  vehicle’s  seat
belt, follow the instructions regarding seat belt usage. ( P. 28)
■ Replacing the belt after the pr etensioner has been activated
If the vehicle is involved in multiple collisions, the pretensioner will activate for
the first collision, but will not activate for the second or subsequent collisions.
■ Seat belt extender
If  your  seat  belts  cannot  be  fastened
securely  because  they  are  not  long
enough, a personalized seat belt extender
is  available  from  your  Toyota  dealer  free
of charge. 
     
        
        Page 34 of 672

341-1. For safe use
SIENNA_OM_OM08007U_(U)
WARNING
■When children are in the vehicle
Do  not  allow  children  to  play  with  the  seat  belt.  If  the  seat  belt  becomes
twisted around a child’s neck, it may lead to choking or other serious injuries
that could result in death. 
If this occurs and the buckle cannot be unfastened, scissors should be used
to cut the belt.
■ Seat belt pretensioners (front seats)
●Do  not  place  anything,  such  as  a  cushion,  on  the  front  passenger’s  seat.
Doing so will disperse the passenger’s weight, which prevents the sensor
from  detecting  the  passenger’s  weight  properly.  As  a  result,  the  seat  belt
pretensioner for the front passenger’s seat may not activate in the event of
a collision.
● If  the  pretensioner  has  activated,  the  SRS  warning  light  will  come  on.  In
that  case,  the  seat  belt  cannot  be  used  again  and  must  be  replaced  at
your Toyota dealer.
■ Adjustable shoulder an chor (front and second outside Tip-up seats)
Always make sure the shoulder belt is positioned across the center of your
shoulder.  The  belt  should  be  kept  away  from  your  neck,  but  not  falling  off
your shoulder. Failure to do so could reduce the amount of protection in an
accident and cause death or serious injuries in the event of a sudden stop,
sudden swerve or accident. ( P. 31)
■ Seat belt damage and wear
●Do  not  damage  the  seat  belts  by  allowing  the  belt,  plate,  or  buckle  to  be
jammed in the door.
● Inspect the seat belt system periodically. Check for cuts, fraying, and loose
parts.  Do  not  use  a  damaged  seat  belt  until  it  is  replaced.  Damaged  seat
belts cannot protect an occupant from death or serious injury.
● Ensure that the belt and plate are locked and the belt is not twisted.
If the seat belt does not function correctly, immediately contact your Toyota
dealer.
● Replace  the  seat  assembly,  including  the  belts,  if  your  vehicle  has  been
involved in a serious accident, even if there is no obvious damage.
● Do  not  attempt  to  install,  remove,  modify,  disassemble  or  dispose  of  the
seat belts. Have any necessary repairs carried out by your Toyota dealer.
Inappropriate handling may lead to incorrect operation. 
     
        
        Page 55 of 672

551-1. For safe use
SIENNA_OM_OM08007U_(U)
1
For safety and security
Safety information for children
●It  is  recommended  that  children  sit  in  the  rear  seats  to  avoid  acci-
dental contact with the shift lever, wiper switch etc.
● Use  the  sliding  door  child-protector  lock  or  the  window  lock  switch
to  avoid  children  opening  the  door  while  driving  or  operating  the
power window accidentally. ( P. 125, 184)
● Do  not  let  small  children  operate  equipment  which  may  catch  or
pinch  body  parts,  such  as  the  power  window,  hood,  back  door,
seats etc.
Observe the following precautions  when children are in the vehi-
cle. 
Use a child restraint system appropriate for the child, until the
child becomes large enough to properly wear the vehicle’s seat
belt.
WARNING
Never leave children unattended in the vehicle, and never allow children to
have or use the key.
Children  may  be  able  to  start  the  vehicle  or  shift  the  vehicle  into  neutral.
There is also a  danger that  children  may  injure  themselves  by playing with
the windows, the moon roof (if equipped) or  other features of the vehicle. In
addition,  heat  build-up  or  extremely  cold  temperatures  inside  the  vehicle
can be fatal to children. 
     
        
        Page 61 of 672
611-1. For safe use
SIENNA_OM_OM08007U_(U)
1
For safety and security
Third seats
LATCH  anchors  are  provided  for
the  right  outboard  seat  and  center
seat.  (Buttons  displaying  the  loca-
tion  of  the  anchors  are  attached  to
the seats.)
Seat  belts  equipped  with  a  child
restraint  locking  mechanism
(ALR/ELR  belts  except  driver’s
seat belt) ( P. 32)
Anchor brackets (for top tether strap)
Second seats (8-passenger models)
Anchor  brackets  are  provided  for
second outside seats. 
     
        
        Page 66 of 672
661-1. For safe use
SIENNA_OM_OM08007U_(U)■
Rear facing 
Infant seat/convertible seat
Place  the  child  restraint  sys-
tem  on  the  rear  seat  facing
the rear of the vehicle.
Run the seat belt through the
child  restraint  system  and
insert  the  plate  into  the
buckle.  Make  sure  that  the
belt is not twisted.
Fully extend the shoulder belt
and allow it to retract to put it
in  lock  mode.  In  lock  mode,
the belt cannot be extended.
While  pushing  the  child
restraint  system  down  into
the  rear  seat,  allow  the
shoulder  belt  to  retract  until
the  child  restraint  system  is
securely in place. 
After  the  shoulder  belt  has
retracted  to  a  point  where  there
is  no  slack  in  the  belt,  pull  the
belt  to  check  that  it  cannot  be
extended.
Installing child restraints using a seat belt (child restraint lock
function belt)
1
2
3
4 
     
        
        Page 67 of 672
671-1. For safe use
SIENNA_OM_OM08007U_(U)
1
For safety and security
■Forward facing Convertible seat
Place  the  child  restraint  sys-
tem  on  the  seat  facing  the
front of the vehicle.
Run the seat belt through the
child  restraint  system  and
insert  the  plate  into  the
buckle.  Make  sure  that  the
belt is not twisted.
Fully extend the shoulder belt
and allow it to retract to put it
in  lock  mode.  In  lock  mode,
the belt cannot be extended.
While  pushing  the  child
restraint  system  into  the  rear
seat,  allow  the  shoulder  belt
to  retract  until  the  child
restraint  system  is  securely
in place.
After  the  shoulder  belt  has
retracted  to  a  point  where  there
is  no  slack  in  the  belt,  pull  the
belt  to  check  that  it  cannot  be
extended.
If  the  child  restraint  has  a  top  tether  strap,  the  top  tether  strap
should be latched onto the top tether strap anchor. ( P. 69, 70)
1
2
3
4
5