Toyota Sienna (2019 year). Manual - part 3

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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.

Adjusting the seat belt shoulder anchor height (front and second
outside Tip-up seats)

Release button

Seat belt pretensioners (front seats)

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Emergency locking retractor (ELR)
The retractor will lock the belt during a sudden stop or on impact. It may also
lock if you lean forward too quickly. A slow, easy motion will allow the belt to
extend so that you can move around fully.

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 the child restraint system (CRS) firmly. To free the belt
again, fully retract the belt and then pull the belt out once more. (

P. 62)

Child seat belt usage
The seat belts of your vehicle were principally designed for persons of adult
size.

Use a child restraint system appropriate for the child, until the child
becomes large enough to properly wear the vehicle’s seat belt. (

P. 58)

When the child becomes large enough to properly wear the vehicle’s seat
belt, follow the instructions regarding seat belt usage. (

P. 30)

Replacing the belt after the pretensioner has been activated
If the vehicle is involved in multiple collisions, the pretensioner will activate for
the first collision, but will not activate for the second or subsequent collisions.

Seat belt extender
If  your  seat  belts  cannot  be  fastened
securely  because  they  are  not  long
enough, a personalized seat belt extender
is  available  from  your Toyota  dealer  free
of charge.

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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 shoulder 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. 30)

Obtain medical advice and wear the seat
belt in the proper way. (

P. 30)

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.

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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 anchor (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. 33)

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.

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WARNING

Using a seat belt extender

Do not wear the seat belt extender if you can fasten the seat belt without
the extender.

Do not use the seat belt extender when installing a child restraint system
because the belt will not securely hold the child restraint system, increas-
ing the risk of death or serious injury in the event of an accident.

The personalized extender may not be safe on another vehicle, when
used by another person, or at a different seating position other than the
one originally intended.

When using the third center seat belt

NOTICE

When using a seat belt extender
When releasing the seat belt, press on the buckle release button on the
extender, not on the seat belt.
This helps prevent damage to the vehicle interior and the extender itself.

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.

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SRS airbags

SRS front airbags

SRS driver airbag/front passenger airbag
Can help protect the head and chest of the driver and front pas-
senger from impact with interior components
SRS driver’s knee airbag
Can help provide driver protection
SRS front passenger’s seat cushion airbag
Can help restrain the front passenger

The SRS airbags inflate when the vehicle is subjected to certain
types of severe impacts that may cause significant injury to the
occupants. They work together with the seat belts to help reduce
the risk of death or serious injury.

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SRS side and curtain shield airbags

SRS 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

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SRS airbag system components

Front passenger airbag
Curtain shield airbags
Side airbags
Seat  belt  pretensioners  and
force limiters
Front passenger occupant clas-
sification  system  (ECU  and
sensors)
Side impact sensors (rear)
Front  passenger’s  seat  belt
buckle switch
SRS warning light

Driver airbag
Side  impact  sensors  (front
door)
Driver’s  seat  belt  buckle
switch
Driver’s seat position sensor
Driver’s knee airbag
Front impact sensors
Airbag sensor assembly
“AIR BAG ON” and “AIR BAG
OFF” indicator lights
Front  passenger’s  seat  cush-
ion airbag

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Your vehicle is equipped with ADVANCED AIRBAGS designed based
on  the  US  motor  vehicle  safety  standards  (FMVSS208). The  airbag
sensor  assembly  (ECU)  controls  airbag  deployment  based  on  infor-
mation obtained from the sensors  etc. shown in the system compo-
nents  diagram  above.  This  information  includes  crash  severity  and
occupant  information. As  the  airbags  deploy,  a  chemical  reaction  in
the inflators quickly fills the airbags with non-toxic gas to help restrain
the motion of the occupants.

WARNING

SRS airbag precautions
Observe the following precautions regarding the SRS airbags.
Failure to do so may cause death or serious injury.

The driver and all passengers in the vehicle must wear their seat belts
properly.
The SRS airbags are supplemental devices to be used with the seat belts.

The SRS driver airbag deploys with considerable force, and can cause
death or serious injury especially if the driver is very close to the airbag.
The National Highway Traffic Safety Administration (NHTSA) advises:
Since the risk zone for the driver’s airbag is the first 2 - 3 in. (50 - 75 mm)
of inflation, placing yourself 10 in. (250 mm) from your driver airbag pro-
vides you with a clear margin of safety. This distance is measured from
the center of the steering wheel to your breastbone. If you sit less than 10
in. (250 mm) away now, you can change your driving position in several
ways:
• Move your seat to the rear as far as you can while still reaching the ped-

als comfortably.

• Slightly recline the back of the seat.

Although vehicle designs vary, many drivers can achieve the 10 in. (250
mm) distance, even with the driver seat all the way forward, simply by
reclining the back of the seat somewhat. If reclining the back of your
seat makes it hard to see the road, raise yourself by using a firm, non-
slippery cushion, or raise the seat if your vehicle has that feature.

• If your steering wheel is adjustable, tilt it downward. This points the air-

bag toward your chest instead of your head and neck.

The seat should be adjusted as recommended by NHTSA above, while
still maintaining control of the foot pedals, steering wheel, and your view
of the instrument panel controls.

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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 properly restrained. The rear seats are
safer for infants and children than the front passenger seat. (

P. 58)

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.

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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.

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WARNING

SRS airbag precautions

Do  not  attach  anything  to  or  lean  any-
thing  against  areas  such  as  the  dash-
board,  steering  wheel  pad  and  lower
portion of the instrument panel.
These  items  can  become  projectiles
when  the  SRS  driver,  front  passenger
and driver’s knee airbags deploy.

Do not attach anything to areas such as
a door, windshield glass, side door
glass, front or rear pillar, roof side rail
and assist grip.

Vehicles  without  a  smart  key  system:
Do not attach any heavy, sharp or hard
objects  such  as  keys  and  accessories
to the key. The objects may restrict the
SRS  knee  airbag  inflation  or  be  thrust
into  the  driver’s  seat  area  by  the  force
of the deploying airbag, thus causing a
danger.

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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.

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WARNING

Modification and disposal of SRS airbag system components
Do not dispose of your vehicle or perform 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

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If the SRS airbags deploy (inflate)

Slight abrasions, burns, bruising etc., may be sustained from SRS airbags,
due to the extremely high speed deployment (inflation) by hot gases.

Bruising and slight abrasions may result from contact with a deploying
(inflating) SRS airbag.

A loud noise and white powder will be emitted.

Parts of the airbag module (steering wheel hub, airbag cover and inflator) as
well as the front seats, parts of the front and rear pillars, and roof side rail,
may be hot for several minutes. The airbag itself may also be hot.

The windshield may crack.

For Safety Connect subscribers, if the SRS airbags deploy or in the event of
a severe rear-end collision, the system is designed to send an emergency
call to the response center, notifying them of the vehicle’s location (without
needing to push the “SOS” button) and an agent will attempt to speak with
the occupants to ascertain the level of emergency and assistance required.
If the occupants are unable to communicate, the agent automatically treats
the call as an emergency and helps to dispatch the necessary emergency
services. (

P. 385)

SRS airbag deployment conditions (SRS front airbags)

The SRS front airbags will deploy in the event of an impact that exceeds the
set threshold level (the level of force corresponding to an approximately 12 -
18 mph [20 - 30 km/h] frontal collision with a fixed wall that does not move or
deform).

However, this threshold velocity will be considerably higher in the following
situations:

• If the vehicle strikes an object, such as a parked vehicle or sign pole,

which can move or deform on impact

• If the vehicle is involved in an underride collision, such as a collision in

which the front of the vehicle “underrides”, or goes under, the bed of a
truck

Depending on the type of collision, it is possible that only the seat belt pre-
tensioners will activate.

The SRS front airbags for the front passenger will not activate if there is no
passenger sitting in the front passenger seat. However, the SRS front air-
bags for the front passenger may deploy if luggage is put in the seat, even if
the seat is unoccupied. (

P. 52)

The SRS seat cushion airbag on the front passenger’s seat will not operate
if the occupant is not wearing a seat belt.

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SRS airbag deployment conditions (SRS side and curtain shield airbags)

The SRS side and curtain shield airbags will deploy in the event of an
impact that exceeds the set threshold level (the level of force corresponding
to the impact force produced by an approximately 3300 lb. [1500 kg] vehicle
colliding with the vehicle cabin from a direction perpendicular to the vehicle
orientation at an approximate speed of 12 - 18 mph [20 - 30 km/h]).

The SRS curtain shield airbags will deploy in the event of vehicle rollover.

The SRS side and curtain shield airbags may also deploy in the event of a
severe frontal collision.

Conditions under which the SRS airbags may deploy (inflate), other than
a collision
The SRS front airbags and SRS side and curtain shield airbags may also
deploy if a serious impact occurs to the underside of your vehicle. Some
examples are shown in the illustration.

The SRS curtain shield airbags may also deploy under the situations shown
in the illustration.

Hitting a curb, edge of pavement or hard
surface

Falling into or jumping over a deep hole

Landing hard or falling

The angle of vehicle tip-up is marginal.

The vehicle skids and hits a curb stone.

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