Page 16 of 860
SIENNA_U (OM45477U)
16
Pictorial indexInstrument panel
Headlight switch
Turn signal lever
Fog light switch
P. 266
P. 241
P. 280
Windshield wiper and washer switch
Rear window wiper and washer switch P. 282
P. 290
Gauges and meters
P. 244
Audio system
Navigation system*
P. 407
Multi-information display
Clock
P. 252
P. 592
Fuel filler
door opener
P. 155
Auxiliary box
Coin holder
P. 585
P. 589Hood release lever P. 651
Parking brake pedal P. 242
Tilt and telescopic steering
lock release lever
P. 137
SRS knee airbag P. 168
Pre-collision braking off switch P. 337
Page 28 of 860

SIENNA_U (OM45477U)
28
●Disclosure of the EDR data
Toyota will not disclose the data recorded in an EDR to a third party except
when:
• An agreement from the vehicle’s owner (or the leasing company for a leased vehicle) is obtained
• In response to an official requested by the police, a court of law or a gov- ernment agency
• Necessary, for use as a defense for Toyota in a lawsuit
However, if necessary, Toyota may:
• Use the data for research on Toyota vehicle safety performance
• Disclose the data to a third party for research purposes without disclosing
details of the vehicle owner, and that only when deemed necessary
• Disclose summarized data cleared of vehicle identification information to a non-Toyota organization for research purposes
Scrapping of your Toyota
The SRS airbag and seat belt pretensioner devices in your Toyota contain
explosive chemicals. If the vehicle is scrapped with the airbags and seat belt
pretensioners left as they are, this may cause an accident such as fire. Be
sure to have the systems of the SRS airbag and seat belt pretensioner
removed and disposed of by a qualified service shop or by your Toyota
dealer before you scrap your vehicle.
Perchlorate Material
Special handling may apply,
See www.dtsc.ca.gov/hazardouswaste/perchlorate.
Your vehicle has components that may contain perchlorate. These compo-
nents may include airbags, seat belt pretensioners, and wireless remote con-
trol batteries.
Page 170 of 860
170 1-7. Safety information
SIENNA_U (OM45477U)
Airbag system componentsFront passenger airbag
Curtain shield airbags
Side airbags
Front passenger occupant
classification system (ECU
and sensors)
Curtain shield airbag sen-
sors
Front passenger’s seat belt
buckle switch
SRS warning light
Driver airbag Side and curtain shield air-
bag sensors
Driver’s seat belt buckle
switch
Driver’s seat position sen-
sor
Driver knee airbag
Front airbag sensors
Airbag sensor assembly
“AIR BAG ON” and “AIR
BAG OFF” indicator lights
Page 181 of 860

181
1-7. Safety information
1
Before driving
SIENNA_U (OM45477U)
CAUTION
■
SRS airbag precautions
● 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 inflate as they may interfere with inflation of the airbags. Such
accessories may prevent the side airbags from activating correctly, disable
the system or cause the side airbags 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 airbag has 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.
Page 184 of 860
184 1-7. Safety information
SIENNA_U (OM45477U)
Conditions and operation of the front passenger occupant
classification system
■ Adult
*1
■Child*3 or child restraint system*4
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “AIR BAG
ON”
SRS warning light Off
Front passenger’s seat belt reminder light
Flashing*2
Devices Front passenger airbag
Activated
Side airbag on the front passenger seat
Curtain shield airbag in the front passenger side
Front passenger’s seat belt pretensioner
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “AIR BAG
OFF”
*5
SRS warning light Off
Front passenger’s seat belt reminder light Flashing
*2
DevicesFront passenger airbag Deactivated
Side airbag on the front passenger seat
Activated
Curtain shield airbag in the front
passenger side
Front passenger’s seat belt pretensioner
Page 185 of 860
185
1-7. Safety information
1
Before driving
SIENNA_U (OM45477U)
■
Unoccupied
■ There is a malfunction in the system
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights Not
illuminated
SRS warning light Off
Front passenger’s seat belt reminder
light
Devices Front passenger airbag Deactivated
Side airbag on the front passenger seat Activated
Curtain shield airbag in the front
passenger side
Front passenger’s seat belt pretensioner Deactivated
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF”
indicator lights “AIR BAG
OFF”
SRS warning light On
Front passenger’s seat belt reminder light Off
Devices Front passenger airbag Deactivated
Side airbag on the front passenger seat
Activated
Curtain shield airbag in the front
passenger side
Front passenger’s seat belt pretensioner
Page 187 of 860

187
1-7. Safety information
1
Before driving
SIENNA_U (OM45477U)
CAUTION
■
Front passenger occupant cl assification 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, then 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 passenger may not activate correctly,
which could cause death or serious injury in the event of collision.
● Do not apply a heavy load to the front passenger seat or equipment (e.g.
seatback pocket).
● 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.
Page 188 of 860

188 1-7. Safety information
SIENNA_U (OM45477U)
CAUTION
■Front passenger occupant cl assification system precautions
● Do not recline the front passenger seatback so far that it touches a rear
seat. This may cause the “AIR BAG OFF” indicator light to be illuminated,
which indicates that the passenger’s airbags will not deploy in the event of
a severe accident. If the seatback touches the rear seat, return the seat-
back to a position where it does not touch the rear seat. Keep the front\
passenger seatback as upright as possible when the vehicle is moving.
Reclining the seatback excessively may lessen the effectiveness of the
seat belt system.
● If an adult sits in the front passenger seat, the “AIR BAG ON” indicator
light is illuminated. If the “AIR BAG OFF” indicator is illuminated, ask the
passenger to sit up straight, well back in the seat, feet on the floor, and
with the seat belt worn correctly. If the “AIR BAG OFF” indicator still
remains illuminated, either ask the passenger to move to the rear seat, or
if that is not possible, move the front passenger seat fully rearward.
● When it is unavoidable to install the forward-facing child restraint system
on the front passenger seat, install the child restraint system on the front
passenger seat in the proper order. ( P.194)
● Do not modify or remove the front seats.
● Do not kick the front passenger seat or subject it to severe impact. Other-
wise, the SRS warning light may come on to indicate a malfunction of the
detection system. In this case, contact your Toyota dealer immediately.
● Child restraint systems installed on the rear seat should not contact the
front seatbacks.
● Do not use a seat accessory, such as a cushion or seat cover, that covers
the seat cushion surface.
● Do not modify or replace the upholstery of the front seat.