
TABLE OF CONTENTS2
SIENNA_OM_OM08013U_(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

21Pictorial index
SIENNA_OM_OM08013U_(U)SRS airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 36
Floor mats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 24
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 149
Second seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 152
Third seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 152
Head restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 173
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 28
Console box
*1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 428
Quarter windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 187
Cup holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 430
Bottle holders. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 432
Door pockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 433
Rear automatic air conditioning system . . . . . . . . . . . . . . . P. 417
Rear seat entertainment system
*1, 2
Rear side sunshades*1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . P. 446
*1: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
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3
4
5
6
7
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9
10
11
12
13

271-1. For safe use
SIENNA_OM_OM08013U_(U)
1
For safety and security
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
●Do not adjust the position of the driver’s seat while driving.
Doing so could cause the driver to lose control of the vehicle.
● Do not place a cushion between the driver or passenger and the seatback.
A cushion may prevent correct posture from being achieved, and reduce
the effectiveness of the seat belt and head restraint.
● Do not place anything under the front seats.
Objects placed under the front seats may become jammed in the seat
tracks and stop the seat from locking in place. This may lead to an acci-
dent and the adjustment mechanism may also be damaged.
● When driving over long distances, take regular breaks before you start to
feel tired.
Also, if you feel tired or sleepy while driving, do not force yourself to con-
tinue driving and take a break immediately.

311-1. For safe use
SIENNA_OM_OM08013U_(U)
1
For safety and security
Push the seat belt shoulder
anchor down while pressing the
release button.
Push the seat belt shoulder
anchor up.
Move the height adjuster up and
down as needed until you hear a
click.
The pretensioners help the seat
belt to quickly restrain the occu-
pant by retracting the seat belt
when the vehicle is subjected to
certain types of severe frontal or
side collision or a vehicle rollover.
The pretensioners do not activate
in the event of a minor frontal
impact, a side impact or a rear
impact.
If the system determines that a collision is unavoidable, the front seat
belts will retract before the collision. ( P. 298)
Adjusting the seat belt shoulder anchor height (front and second
outside Tip-up seats)
Release button
1
2
Seat belt pretensioners (front seats)
Pre-collision seat belts (front seats of vehicles with pre-collision
system)

331-1. For safe use
SIENNA_OM_OM08013U_(U)
1
For safety and security
WARNING
Observe the following precautions to reduce the risk of injury in the event of
sudden braking, sudden swerving or an accident.
Failing to do so may cause death or severe injury.
■Wearing a seat belt
●Ensure that all passengers wear a seat belt.
● Always wear a seat belt properly.
● Each seat belt should be used by one person only. Do not use a seat belt
for more than one person at once, including children.
● Toyota recommends that children be seated in the rear seat and always
use a seat belt and/or an appropriate child restraint system.
● To achieve a proper seating position, do not recline the seat more than
necessary. The seat belt is most effective when the occupants are sitting
up straight and well back in the seats.
● Do not wear the shoulder belt under your arm.
● Always wear your seat belt low and snug across your hips.
● Always wear the belt with the shoul der portion over the outside armrest
and the lap portion under the outside armrest.
■ Pregnant women
■ People suffering illness
Obtain medical advice and wear the seat belt in the proper way. ( P. 28)
Obtain medical advice and wear the seat
belt in the proper way. ( P. 28)
Women who are pregnant should posi-
tion the lap belt as low as possible over
the hips in the same manner as other
occupants, extending the shoulder belt
completely over the shoulder and avoid-
ing belt contact with the rounding of the
abdominal area.
If the seat belt is not worn properly, not
only a pregnant woman, but also the
fetus could suffer death or serious injury
as a result of sudden braking or a colli-
sion.

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.

371-1. For safe use
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For safety and security
◆SRS side and curtain shield airbagsSRS side airbags
Can help protect the torsos of the front seat occupants
SRS curtain shield airbags
●Can help protect primarily the heads of occupants in the outer
seats
● Can prevent the occupants from being thrown from the vehicle
in the event of vehicle rollover
4
5

401-1. For safe use
SIENNA_OM_OM08013U_(U)
WARNING
■SRS airbag precautions
●The SRS front passenger airbag also deploys with considerable force, and
can cause death or serious injury especially if the front passenger is very
close to the airbag. The front passenger seat should be as far from the air-
bag as possible with the seatback adjusted, so the front passenger sits
upright.
● Improperly seated and/or restrained infants and children can be killed or
seriously injured by a deploying airbag. An infant or child who is too small
to use a seat belt should be properly secured using a child restraint sys-
tem. Toyota strongly recommends that all infants and children be placed in
the rear seats of the vehicle and proper ly restrained. The rear seats are
safer for infants and children than the front passenger seat. ( P. 56)
●If the seat belt extender has been con-
nected to the front seat belt buckles but
the seat belt extender has not also been
fastened to the latch plate of the seat
belt, the SRS front airbags will judge
that the driver and front passenger are
wearing the seat belt even though the
seat belt has not been connected. In
this case, the SRS front airbags may
not activate correctly in a collision,
resulting in death or serious injury in the
event of a collision. Be sure to wear the
seat belt with the seat belt extender.