2021 TOYOTA SIENNA HYBRID second seat

26Pictorial index
■Interior
8-passenger models
SRS airbags .................................................... ......................P.41
Floor mats..................................................... ........................P.32
Front seats .................................................... ......................P.169
Second seats ......................................................................P.171
Third seats .................................................... ......................P.171
Head restraints ...................................................................P.182
Seat belts ..................................................... .........................P.35
Console box .................................................... ...................P.367
Cup holders ........................................................................P.368
Bottle holders .....................................................................P.369
Door pockets ................................................... ...................P.370
Rear automatic air conditioning system ......................... .P.358
Rear seat entertainment system
*1, 2
Rear side sunshades*1......................................................P.385
A
B
C
D
E
F
G
H
I
J
K
L

27Pictorial index
*1: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MAN-
UAL”.
7-passenger models
SRS airbags .................................................... ......................P.41
Floor mats..................................................... ........................P.32
Front seats .................................................... ......................P.169
Second seats ......................................................................P.171
Third seats .................................................... ......................P.171
Head restraints ...................................................................P.182
Seat belts ..................................................... .........................P.35
Console box .................................................... ...................P.367
Cup holders ........................................................................P.368
Bottle holders .....................................................................P.369
Door pockets ................................................... ...................P.370
Rear automatic air conditioning system ......................... .P.358A
B
C
D
E
F
G
H
I
J

391-1. For safe use
1
For safety and security
■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 a child restraint system (CRS)
firmly. To free the belt again, fully
retract the belt and then pull the belt
out once more.
Push the seat belt shoulder
anchor up and down while
pressing the release button .
After releasing the button, make
sure the adjuster is locked in the
position by trying t o move it up and
down.
The pretensioners help the seat
belts to quickly restrain the
occupants by retracting the seat
belts when the vehicle is sub-
jected to certain types of severe
frontal or side collision or a vehi-
cle rollover.
The pretensioners do not activate
in the event of a minor frontal
impact, a minor s ide impact or a
rear impact.
WARNING
■When using the third center
seat belt
Do not use the third center seat
belt with either buckle released.
Fastening only one of the buckles
may result in death or serious
injury in case of sudden braking,
sudden swerving or an accident.
Adjusting the seat belt
shoulder anchor height
(front and second outside
seats [8-passenger mod-
els])
A
:$51,1*
■Adjustable shoulder anchor
Always make sure the shoulder
belt is positioned across the cen-
ter 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.
Seat belt pretensioners
(front seats)

401-1. For safe use
■Replacing the belt after the pre-
tensioner has been activated
If the vehicle is in volved in multiple
collisions, the pretensioner will acti-
vate for the first collision, but will not
activate for the second or subse-
quent collisions.
■PCS-linked seat belt preten-
sioner control
If the PCS (Pre-Collision System)
determines that the possibility of a
collision with a vehicle is high, the
seat belt pretens ioners will be pre-
pared to operate.
WARNING
■Seat belt pretensioners
Observe the following precautions
to reduce the risk of injury in the
event of sudden braking, sudden
swerving or an accident.
Failure to do so may cause death
or serious injury.
●Do not place anything, such as
a cushion, on the front passen-
ger’s seat.
Doing so will disperse the pas-
senger’s weight, which prevents
the sensor from detecting the
passenger’s weight properly. As
a result, the seat belt preten-
sioner for the front passenger’s
seat may not activate in the
event of a collision.
●If the pretensioner has acti-
vated, 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.

421-1. For safe use
SRS curtain shield airbags
• Can help protect primarily the head of occupants in the outer seats
• Can help prevent the occupants from being thrown from the vehi cle in the
event of vehicle rollover
SRS second seat side airbags
Can help protect the torso of occ upants in the second outside seats
■SRS airbag system components
Front impact sensors
“AIR BAG ON” and “AIR BAG OFF” indicator lights
Front passenger airbag
Side impact sensors (front door)
Curtain shield airbags
Seat belt pretensioners and force limiters
Side impact sensors (front)
Side airbags (front seats)
Front passenger’s seat cushion airbag
Front passenger’s seat belt buckle switch
Side airbags (second outside seats)
E
F
A
B
C
D
E
F
G
H
I
J
K

611-2. Child safety
1
For safety and security
■When installing a child
restraint system to a front
passenger seat
For the safety of a child, install a
child restraint system to a rear seat. When installing the child
restraint system to a front pas-
senger seat is unavoidable,
adjust the seat as follows and
install the child restraint system.

Raise the seatback as much
as possible.
 Move the front seat fully rear-
Anchor brackets (for
top tether strap) attach- ment
Second seats (8-pas senger models):
Second seats (7-pas senger models):
Third seats:
P.71
Installation methodPage
When using a child
restraint system

681-2. Child safety
■Child restraint LATCH
anchors
LATCH anchors are provided for
the rear seats.
Second seats (8-passenger
models)
Second seats (7-passenger
models)
Third seats
■When installing in the sec-
ond seats and third seats
Install the child restraint system
in accordance to the operation
manual enclosed with the child
restraint system.
Second seats
1 Fold the seatback while pull-
ing the lever. Return the
seatback and secure it at the
1st lock position (most
upright position). Adjust the
seatback to the 6th lock posi-
tion.
If there is a gap between the child
restraint system and the seatback,
adjust the seatback angle until
good contact is achieved.
1st lock position
6th lock position
Third seats
1 Fold the seatback while pull-
ing the strap. Return the
seatback and secure it at the
1st lock position (most
upright position). Adjust the
seatback to the 11th lock
position.
If there is a gap between the child
restraint system and the seatback,
Child restraint system
fixed with a child restraint
LATCH anchor
A
B

711-2. Child safety
1
For safety and security
■Anchor brackets (for top
tether strap)
Use anchor brackets when fix-
ing the top tether strap. Anchor brackets are provided
for the following seats:
Second seats (8-passenger
models)
Anchor brackets
Top tether strap
Second seats (7-passenger
models)Anchor bracket
Top tether strap
Third seats
WARNING
●Third seats: Never attach two
child restraint systems to the
center seat and left-hand side
outboard seat at the same time.
Child restraint systems may
interfere with each other and
may not be possible to properly
install the child restraint sys-
tems in positions.
●8-passenger models: Never
attach child restraint system to
the second center seat strikers,
which are exposed when sec-
ond center seat is removed.
When attaching child restraint
system to the second center
seat, ensure the second center
seat is securely installed and
attach child restraint system to
the LATCH anchors of the seat.
●When securing some types of
child restraint s ystems in rear
seats, it may not be possible to
properly use the seat belts in
positions next to the child
restraint without interfering with
it or affecting seat belt effective-
ness. Be sure your seat belt fits
snugly across your shoulder
and low on your hips. If it does
not, or if it interferes with the
child restraint, move to a differ-
ent position. Failure to do so
may result in death or serious
injury.
●If the seat is adjusted, reconfirm
the security of the child restraint
system.
Using an anchor bracket
(for top tether strap)
A
B
A
B