Page 41 of 668
411-1. For safe use
SIENNA_OM_OM08013U_(U)
1
For safety and security
WARNING
■SRS airbag precautions
●Do  not  sit  on  the  edge  of  the  seat  or
lean against the dashboard.
● Do  not  allow  a  child  to  stand  in  front  of
the  SRS  front  passenger  airbag  unit  or
sit on the knees of a front passenger.
● Do not allow the front seat occupants to
hold items on their knees.
● Do  not  lean  against  the  door,  the  roof
side  rail  or  the  front,  side  and  rear  pil-
lars.
● Do  not  allow  anyone  to  kneel  on  the
passenger  seat  toward  the  door  or  put
their head or hands outside the vehicle. 
     
        
        Page 44 of 668
441-1. For safe use
SIENNA_OM_OM08013U_(U)
WARNING
■Modification and disposal of SRS airbag system components
Do not dispose of your vehicle or per form any of the following modifications
without consulting your Toyota dealer. 
The  SRS  airbags  may  malfunction  or  deploy  (inflate)  accidentally,  causing
death or serious injury.
● Installation, removal, disassembly and repair of the SRS airbags
● Repairs,  modifications,  removal  or  replacement  of  the  steering  wheel,
instrument panel, dashboard, seats or seat upholstery, front, side and rear
pillars or roof side rails
● Repairs  or  modifications  of  the  front  fender,  front  bumper,  or  side  of  the
occupant compartment
● Installation  of  a  grille  guard  (bull  bars,  kangaroo  bar,  etc.),  snow  plows,
winches or roof luggage carrier
● Modifications to the vehicle’s suspension system
● Installation  of  electronic  devices  such  as  mobile  two-way  radios  and  CD
players
● Modifications to your vehicle for a person with a physical disability 
     
        
        Page 48 of 668

481-1. For safe use
SIENNA_OM_OM08013U_(U)The  SRS  curtain  shield  airbags  do  not  generally  inflate  if  the  vehicle  is
involved  in  a  rear  collision,  if  it  pitches  end  over  end,  or  if  it  is  involved  in  a
low-speed side or low-speed frontal collision.
■ When to contact your Toyota dealer
In  the  following  cases,  the  vehicle  will  require  inspection  and/or  repair.  Con-
tact your Toyota dealer as soon as possible.
●Any of the SRS airbags have been inflated.
●
Collision from the rear
● Pitching end over end
● The  front  of  the  vehicle  is  damaged  or
deformed,  or  was  involved  in  an  acci-
dent  that  was  not  severe  enough  to
cause the SRS front airbags to inflate.
● A  portion  of  a  door  or  its  surrounding
area  is  damaged  or  deformed,  or  the
vehicle  was  involved  in  an  accident  that
was  not  severe  enough  to  cause  the
SRS  side  and  curtain  shield  airbags  to
inflate.
● The  pad  section  of  the  steering  wheel,
dashboard  near  the  front  passenger  air-
bag  or  lower  portion  of  the  instrument
panel  is  scratched,  cracked,  or  other-
wise damaged. 
     
        
        Page 200 of 668

200
SIENNA_OM_OM08013U_(U)
4-1. Before driving
WARNING
Observe the following precautions. 
Failure to do so may result in death or serious injury.
■When the vehicle is parked
●Do  not  leave  cigarette  lighters  in  the  vehicle.  If  a  cigarette  lighter  is  in  a
place such as the glove box or on the floor, it may be lit accidentally when
luggage is loaded or the seat is adjusted, causing a fire.
● Do  not  attach  adhesive  discs  to  the  windshield  or  windows.  Do  not  place
containers  such  as  air  fresheners  on  the  instrument  panel  or  dashboard.
Adhesive discs or containers may act as lenses, causing a fire in the vehi-
cle.
● Do  not  leave  a  door  or  window  open  if  the  curved  glass  is  coated  with  a
metallized film such as a silver-colored one. Reflected sunlight may cause
the glass to act as a lens, causing a fire.
● Always  apply  the  parking  brake,  shift  the  shift  lever  to  P,  stop  the  engine
and lock the vehicle.
Do not leave the vehicle unattended while the engine is running.
● Do  not  touch the exhaust pipe while the engine is running or immediately
after turning the engine off. 
Doing so may cause burns.
■ When taking a nap in the vehicle
Always  turn  the  engine  off.  Otherwise,  if  you  accidentally  move  the  shift
lever  or depress  the accelerator  pedal, this  could  cause  an  accident or  fire
due  to  engine  overheating.  Additionally,  if  the  vehicle  is  parked  in  a  poorly
ventilated area, exhaust gases may collect and enter the vehicle, leading to
death or a serious health hazard. 
     
        
        Page 207 of 668

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. 
     
        
        Page 248 of 668

248
SIENNA_OM_OM08013U_(U)
4-3. Operating the lights and wipers
WARNING
■Limitations of the Automatic High Beam
Do not rely on the Automatic High Beam. Always drive safely, taking care to
observe your surroundings and turning high beam on or off manually if nec-
essary.
NOTICE
■Camera sensor
●Do not touch the camera sensor.
● Do not subject the inside rear view mirror or the camera sensor to a strong
impact.
● Do not disassemble the camera sensor.
● Do not spill liquid onto the inside rear view mirror or the camera sensor.
● Do not apply window tinting or stickers to the camera sensor or the area of
windshield near the camera sensor.
● Do  not  place  items  on  the  dashboard.  There  is  a  possibility  that  the  cam-
era  sensor  will  mistake  items  reflected  in  the  windshield  for  streetlights,
the headlights of other vehicles, etc.
● Do  not  install  a  parking  tag  or  any  other  accessories  near  or  around  the
inside rear view mirror and the camera sensor.
● Do not overload the vehicle.
● Do not modify the vehicle.
● Do not replace windshield with a non-genuine windshield. 
Contact your Toyota dealer.
■ Headlight leveling
When the vehicle is loaded, headlight level should be adjusted to appropri-
ate dial setting. ( P. 241)
Observe  the  following  to  ensure  that  the
Automatic High Beam functions correctly.