
341-1. For safe use
SIENNA_OM_OM08013U_(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. 

431-1. For safe use
SIENNA_OM_OM08013U_(U)
1
For safety and security
WARNING
■SRS airbag precautions
●Do  not  hang  coat  hangers  or  other  hard  objects  on  the  coat  hooks.  All  of
these  items  could  become  projectiles  and  may  cause  death  or  serious
injury, should the SRS curtain shield airbags deploy.
● If  a  vinyl  cover  is  put  on the  area  where  the SRS  knee  airbag  will  deploy,
be sure to remove it.
● Do  not  use  seat  accessories  which  cover  the  parts  where  the  SRS  side
airbags  and  SRS  seat  cushion  airbag  inflate  as  they  may  interfere  with
inflation  of  the  SRS  airbags.  Such  accessories  may  prevent  the  side  air-
bags and seat cushion airbag from activating correctly, disable the system
or  cause  the  side  airbags  and  seat  cushion  airbag  to  inflate  accidentally,
resulting in death or serious injury.
● Do not strike or apply significant levels of force to the area of the SRS air-
bag components.
Doing so can cause the SRS airbags to malfunction.
● Do  not  touch  any  of  the  component  parts  immediately  after  the  SRS  air-
bags have deployed (inflated) as they may be hot.
● If breathing becomes difficult after the SRS airbags have deployed, open a
door  or  window  to  allow  fresh  air  in,  or  leave  the  vehicle  if  it  is  safe  to  do
so. Wash off any residue as soon as possible to prevent skin irritation. 
● If the areas where the SRS airbags are stored, such as the steering wheel
pad  and  front  and  rear  pillar  garnishes,  are  damaged  or  cracked,  have
them replaced by your Toyota dealer.
● 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 SRS front
airbags for the front passenger may not deploy in the event of a collision. 

531-1. For safe use
SIENNA_OM_OM08013U_(U)
1
For safety and security
*1: The  system  judges  a  person  of  adult  size  as  an  adult.  When  a  smalleradult sits in the front passenger seat, the system may recognize him/her
as a child depending on his/her physique and posture.
*2: In the event the front passenger is wearing a seat belt.
*3: In the event the front passenger does not wear a seat belt.
*4: When a larger child who has outgrown a child restraint system sits in thefront  passenger  seat,  the  system  may  recognize  him/her  as  an  adult
depending on his/her physique or posture.
*5: Never  install  a  rear-facing  child  restraint  system  on  the  front  passengerseat.  A  forward-facing  child  restraint  system  should  only  be  installed  on
the front passenger seat when it is unavoidable. ( P. 57)
*6: In case the indicator light is not illuminated, consult this manual on how to
install the child restraint system properly. ( P. 60)
*7: In the event of a side collision.
*8: In the event of a frontal collision or rollover.
WARNING
■Front passenger occupant classification system precautions
Observe  the  following  precautions  regarding  the  front  passenger  occupant
classification system. 
Failure to do so may cause death or serious injury.
●Wear the seat belt properly.
● Make sure the front passenger’s seat belt plate has not been left inserted
into the buckle before someone sits in the front passenger seat.
● Make sure the “AIR BAG OFF” indicator light is not illuminated when using
the seat belt extender for the front passenger seat. If the “AIR BAG OFF”
indicator light is illuminated, disconnect the extender tongue from the seat
belt buckle, and reconnect the seat belt. Reconnect the seat belt extender
after  making  sure  the  “AIR  BAG  ON”  indicator  light  is  illuminated.  If  you
use the seat belt extender while the “AIR  BAG OFF” indicator light is illumi-
nated,  the  SRS  airbags  for  the  front  passenger  will  not  activate,  which
could cause death or serious injury in the event of a collision.
● Do  not apply  a heavy  load to the  front  passenger  seat or equipment (e.g.
seatback pocket or armrest).
● Do  not  put  weight  on  the  front  passenger  seat  by  putting  your  hands  or
feet on the front passenger seat seatback from the rear passenger seat.
● Do  not  let  a  rear  passenger  lift  the  front  passenger  seat  with  their  feet  or
press on the seatback with their legs.
● Do not put objects under the front passenger seat. 

203
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4-1. Before driving
4
Driving
Cargo and luggage
Cargo capacity depends on the total weight of the occupants. 
(Cargo capacity) = (Total load capacity) - (Total weight of occupants)
Steps for Determining Correct Load Limit  
(1) Locate  the  statement  “The  combined  weight  of  occupants  and cargo  should  never  exceed  XXX  kg  or  XXX  lbs.”  on  your  vehicle’s
placard. 
(2) Determine  the  combined  weight  of  the  driver  and  passengers  that will be riding in your vehicle. 
(3) Subtract  the  combined  weight  of  the  driver  and  passengers  from
XXX kg or XXX lbs.
(4) The  resulting  figure  equals  the  available  amount  of  cargo  and  lug- gage load capacity. 
For example, if the “ XXX” amount equals 1400  lbs. and there will be
five  150  lb  passengers  in  your  v ehicle,  the  amount  of  available
cargo and luggage load capacity is 650 lbs. (1400 - 750 (5 150) =
650 lbs.)
(5) Determine the combined weight of luggage and cargo being loaded on  the  vehicle.  That  weight  ma y  not  safely  exceed  the  available
cargo and luggage load capacity calculated in Step 4. 
(6) If  your  vehicle  will  be  towing  a  tr ailer,  load  from  your  trailer  will  be
transferred  to  your  vehicle.  Consult  this  manual  to  determine  how
this reduces the available cargo  and luggage load capacity of your
vehicle. ( P. 598)
Take notice of the following information about storage precau-
tions, cargo capacity and load:
Capacity and distribution 

204
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4-1. Before driving
Cargo capacity
Total  load  capacity  (vehicle
capacity weight) (P. 598)
When  2  people  with  the  combined  weight  of  A  lb.  (kg)  are  riding  in
your vehicle, which has a total load  capacity (vehicle capacity weight)
of B lb. (kg), the available amount of cargo and luggage load capacity
will be C lb. (kg) as follows: 
B
*2 lb. (kg) - A*1 lb. (kg) = C*3 lb. (kg)
*1: A = Weight of people
*2: B = Total load capacity
*3: C = Available cargo and luggage load
In  this  condition,  if  3  more  pa ssengers  with  the  combined  weight  of
D lb. (kg) get on, the available ca rgo and luggage load will be reduced
E lb. (kg) as follows: 
C lb. (kg) - D*4 lb. (kg) = E*5 lb. (kg)
*4: D = Additional weight of people
*5: E = Available cargo and luggage load
As  shown  in  the  example  above,   if  the  number  of  occupants
increases, the cargo and luggage load will be reduced  by an  amount
that  equals  the  increased  weight  du e  to  the  additional  occupants.  In
other  words,  if  an  increase  in  the  number  of  occupants  causes  an
excess of the total load capacity  (combined weight of occupants plus
cargo and luggage load), you must reduce the cargo and luggage on
your vehicle.
Calculation formula  for your vehicle
1
2 

206
SIENNA_OM_OM08013U_(U)
4-1. Before driving
Cargo capacity
Weight  of  the  removed  second
seat
If  removing  the  second  seats,  it  is  possible  to  load  extra  cargo  equal
to the weight of the removed seats.
(Cargo capacity) = (Total load capacity) - (Total weight of occupants) +
(Weight of the removed second seats)
Second seats weight:
7-passenger models
Tip-up seat, fabric: 47.2 lb. (20.5 kg) 
Tip-up seat, leather: 49.5 lb. (21.5 kg) 
Ottoman seat: 74.1 lb. (32.2 kg)
8-passenger models
Right side, fabric: 47.2 lb. (20.5 kg) 
Right side, leather: 49.5 lb. (21.5 kg) 
Left side, fabric: 97.1 lb. (42.2 kg) 
Left side, leather: 100.3 lb. (43.6 kg)
Seating configuration variation
1
2 

SIENNA_OM_OM08013U_(U)
2074-1. Before driving
4
Driving
WARNING
■Things that must not be carried in the luggage compartment
The following things may cause a fire if loaded in the luggage compart-
ment:
●Receptacles containing gasoline
●Aerosol cans
■Storage precautions
Observe the following precautions.
Failure to do so may prevent the pedals from being depressed properly,
may block the driver’s vision, or may result in items hitting the driver or
passengers, possibly causing an accident.
●Stow cargo and luggage in the luggage compartment whenever possi-
ble.
●Do  not  stack  cargo  and  luggage  in  the  luggage  compartment  higher
than the seatbacks.
●Do not place cargo or luggage in or on the following locations.
• Driver’s feet
• Front passenger or rear seats (when stacking items)
• Instrument panel
• Dashboard
• Auxiliary box or tray that has no lid
●Secure all items in the occupant compartment.
●When  you  fold  down  the  rear  seats,  long  items  should  not  be  placed
directly behind the front seats.
●Never  allow  anyone  to  ride  in  the  luggage  compartment.  It  is  not
designed for passengers. They should ride in their seats with their seat
belts properly fastened. Otherwise, they are much more likely to suffer
death  or  serious  bodily  injury,  in  the  event  of  sudden  braking,  sudden
swerving or an accident.
■Capacity and distribution
●Do  not  exceed  the  maximum  axle  weight  rating  or  the  total  vehicle
weight rating. 
●Even  if  the  total  load  of  occupant’s  weight  and  the  cargo  load  is  less
than the total load capacity, do not apply the load unevenly. 
Improper  loading  may  cause  deterioration  of  steering  or  braking  con-
trol which may cause death or serious injury. 

208
SIENNA_OM_OM08013U_(U)
4-1. Before driving
WARNING
■Cross rail adjustment
Make  sure  the  cross  rails  are  locked  securely  by  pushing  forward  and
rearward them.
Failure to do so may cause an unexpected accident.
■When loading cargo
To use the roof rails as a roof luggage  carrier, you must fit the roof rails
with two or more genuine Toyota cross rails or their equivalent. 
When you load cargo on the roof luggage carrier, observe the following:
●Place  the  cargo  so  that  its  weight  is  distributed  evenly  between  the
front and rear axles.
●If  loading  long  or  wide  cargo,  never  exceed  the  vehicle  overall  length
or width. ( P. 598)
●Before  driving,  make  sure  the  cargo  is  securely  fastened  on  the  roof
luggage carrier.
●Loading cargo on the ro of luggage carrier will make  the center of grav-
ity of the vehicle higher. Avoid high speeds, sudden starts, sharp turns,
sudden braking or abrupt maneuvers, otherwise it may result in loss of
control or vehicle rollover due to failu re to operate this vehicle correctly
and result in death or serious injury.
●If  driving  for  a  long  distance,  on  rough  roads,  or  at  high  speeds,  stop
the  vehicle  now  and  then  during  the  trip  to  make  sure  the  cargo
remains in its place.
●Do not exceed 150 lb. (68 kg) cargo weight on the roof luggage carrier.
NOTICE
■When loading cargo (vehicles with moon roof)
Be careful not to scratch the surface of the moon roof.