belt TOYOTA 4RUNNER 2008 N210 / 4.G Service Manual

83
Improperly seated and/or restrained
infants and children can be killed
or seriously injured by the deploy-
ing airbags. An infant or child who
is too small to use a seat belt
should be properly secured using a
child restraint system. Toyota
strongly recommends that all in-
fants and children be placed in the
rear seats of the vehicle and prop-
erly restrained. The rear seats are
the safest for infants and children.
For instructions concerning the
installation of a child restraint sys-
tem, see Child restraint" on page
96 in this Section.
CY13071
The SRS side airbags may not activate
if the vehicle is subjected to a collision
from the side at certain angles, or a
collision to the side of the vehicle body
other than the passenger compartment
as shown in the illustration.
The SRS side airbags are designed to
inflate when the passenger compartment
area suffers a severe impact from the
side.
Always wear your seat belts properly.
CY13310
Collision from the rear
Collision from the front Vehicle rollover
The SRS side airbags are not generally
designed to inflate if the vehicle is in-
volved in a front or rear collision, if it
rolls over, or if it is involved in a low−
speed side collision.

84
CY13071
The curtain shield airbags may not acti-
vate if the vehicle is subjected to a
collision from the side at certain
angles, or a collision to the side of the
vehicle body other than the passenger
compartment as shown in the illustra-
tion.
The curtain shield airbags are designed to
inflate when the passenger compartment
area suffers a severe impact from the
side or vehicle rollover.
Always wear your seat belts properly.
CY13311
The angle of
vehicle tip−up
is marginalSkidding vehicle
hitting a curb
stone
The curtain shield airbags may inflate
if the angle of vehicle tip−up is margin-
al or if the skidding vehicle’s tires hit
a curb stone laterally as shown in the
illustration.
CY13229
Collision from
the front
Collision from
the rear
Pitch end over end
The curtain shield airbags are not gen-
erally designed to inflate if the vehicle
is involved in a front or rear collision,
if it pitches end over end, or if it is
involved in a low−speed side collision.

85
CY13232
Hitting a curb, edge
of pavement or
hard surfaceFalling into or
jumping over
a deep hole
Landing hard or vehicle falling
The SRS side and curtain shield airbags
may deploy if a serious impact occurs
to the underside of your vehicle. Some
examples are shown in the illustration.
CY13278
The SRS side airbag and curtain shield
airbag system consists mainly of the fol-
lowing components, and their locations are
shown in the illustration. 1. SRS warning light
2. Front passenger occupant classification indicator light
3. Curtain shield airbag modules (airbag and inflator)
4. Front passenger occupant classification system (ECU and sensors)
5. Side airbag modules (airbag and inflator)
6. Curtain shield airbag sensors
7. Side and curtain shield airbag sensors 8. Front passenger ’s seat belt buckle
switch
9. Airbag sensor assembly
The SRS side airbag and curtain shield
airbag system is controlled by the airbag
sensor assembly. The airbag sensor as-
sembly consists of a safing sensor and
airbag sensor.
In a severe side impact, the side and
curtain shield airbag sensor and/or the
curtain shield airbag sensor trigger(s) the
side airbag inflators and/or the curtain
shield airbag inflators. At this time a
chemical reaction in the inflators quickly
fills the air bags with non−toxic gas to help
restrain the lateral motion of the occu-
pants.
In a vehicle rollover, the airbag sensor
assembly triggers the curtain shield airbag
inflator. At this time, a chemical reaction
in the inflators quickly fills the air bags
with non−toxic gas to help restrain the
lateral motion of the occupants.

86
When the airbags inflate, they produce a
fairly loud noise and release some smoke
and residue along with non−toxic gas. This
does not indicate a fire. This smoke may
remain inside the vehicle for some time,
and may cause some minor irritation to
the eyes, skin or breathing. Be sure to
wash off any residue as soon as possible
to prevent any potential skin irritation with
soap and water. If you can safely exit
from the vehicle, you should do so imme-
diately.
Deployment of the airbags happens in a
fraction of a second, so the airbags must
inflate with considerable force. While the
system is designed to reduce serious inju-
ries, it may also cause minor burns or
abrasions and swelling.
Front seats as well as parts of the front
and rear pillars, front, center and rear
garnish and roof interior may be hot for
several minutes, but the airbags them-
selves will not be hot. The airbags are
designed to inflate only once.CAUTION
SRS side airbags and curtain shield
airbags inflate with considerable
force. To reduce the possibility of
death or serious injury when they in-
flate, the driver, front passenger and
rear/second passengers must:
Wear their seat belts properly.
Remain properly seated with their
backs upright and against the seats
at all times.
Improper sitting and wearing of the
seat belts may not retain you inside
the vehicle.
CY13023
Do not allow anyone to lean against
the door when the vehicle is in use,
since the side airbag and curtain
shield airbag could inflate with con-
siderable speed and force. Other-
wise, he/she may be killed or seri-
ously injured. Special care should
be taken especially when you have
a small child in the vehicle.
Sit up straight and well back in the
seat, distributing your weight evenly
in the seat. Do not apply excessive
weight to the outer side of the
seats with a side airbag, and to the
front pillar, rear pillar and roof side
rail with a curtain shield airbag.

90
CY13295
This indicator comes on when the en-
gine switch is turned to the ON" posi-
tion. It goes off after about 6 seconds.
This means the SRS side airbags and
curtain shield airbags are operating
properly.This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er ’s seat position sensor, driver ’s seat belt
buckle switch, front passenger occupant
classification system and indicator light,
front passenger ’s seat belt buckle switch,
seat belt pretensioner assemblies, inflat-
ors, RSCA OFF" indicator light, intercon-
necting wiring and power sources. (For
details, see Service reminder indicators
and warning buzzers" on page 149 in Sec-
tion 1−6.)
If any of the following conditions occurs,
this indicates a malfunction of the airbags
or seat belt pretensioners. Contact your
Toyota dealer as soon as possible.
The light does not come on when the
engine switch is turned to the ON"
position or remains on for more than
6 seconds or flashes.
The light comes on or starts flashing
while driving.
The SRS warning light will come on and
front passenger occupant classification in-
dicator light will indicate OFF" if there is
a malfunction in the front passenger occu-
pant classification system.
CY13235

91
In the following cases, contact your Toyota
dealer as soon as possible:
Any of the SRS side airbags and cur-
tain shield airbags have been inflated.
The portion of the doors (shaded in the
illustration) was involved in an accident
that was not severe enough to cause
the SRS side airbags and curtain
shield airbags to inflate.
The surface of the seats with the side
airbag (shaded in the illustration) is
scratched, cracked, or otherwise dam-
aged.
The portion of the front, center and
rear garnish, and roof interior contain-
ing the curtain shield airbags inside
(shaded in the illustration) is scratched,
cracked, or otherwise damaged.
NOTICE
Do not disconnect the battery cables
before contacting your Toyota dealer.
Your vehicle is equipped with a front
passenger occupant classification sys-
tem. This system detects the conditions
14 in the table on page 93 and based
on these conditions activates or deacti-
vates the following systems;
Front passenger airbag
Side airbag on the front passenger
seat
Front passenger ’s seat belt pretension-
er
The system monitors the weight and
load on the front passenger seat, and
the seat belt buckle switch to determine
conditions 14.
In order for the system to detect the
conditions correctly, do not do any of
the following:
Apply a heavy load to the front pas-
senger seat.
Attach a commercial seatback table,
etc. to the front passenger seatback.
Put weight on the front passenger seat
by putting your hands or feet on the
seatback from the rear passenger seat.
CY13267a
The front passenger occupant classifi-
cation indicator light indicates the ac-
tuation of the front passenger airbag,
side airbag on the front passenger seat
and front passenger’s seat belt preten-
sioner.
The indicator light will indicate OFF"
when the engine switch is in the ON"
position with the condition 2 in the table
shown below.
Front passenger occupant
classification system

92
If the front passenger occupant classifica-
tion system determines that a person of
adult size sits in the front passenger seat
but the OFF" indicator is illuminated, one
of the following is likely to have occurred:
A rear passenger lifts the front passen-
ger seat cushion with their legs.
Objects are placed under the front pas-
senger seat.
The front passenger seatback is in
contact with the rear/second seat.
To ensure the system correctly detects an
adult sitting in the front passenger seat,
make sure the above do not occur.
Make sure that the ON" indicator is illu-
minated when an adult is seated in the
front passenger seat. If the OFF" indica-
tor is illuminated, ask the passenger to sit
up straight, well back in the seat, and
with the seat belt worn correctly. If the
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. The front passenger occupant classifi-
cation indicator light will indicate ON"
and OFF" when the engine switch is
turned to the ON" position. After
about four seconds, it will go off. After
that, the front passenger occupant clas-
sification system operates and judges
whether to indicate ON" or OFF".
CY13299a
The SRS warning light will come on
and front passenger occupant classifi-
cation indicator light will indicate
OFF" if there is a malfunction in the
front passenger occupant classification
system.

93
Condition and operation in the front passenger occupant classification systemCondition detected bythe front passenger
occupant classification system
Indicator/warning lightDevices
Front
passenger occupant
classification
indicator light
SRS warning light
Front
passenger ’s seat belt
reminder lightFront
passenger airbagSide airbag
on the front passenger seatCurtain shieldairbag in the front
passenger sideFront
passenger ’s seat belt
pretensioner
1. Adult∗ 1ON"OffFlashing∗4Activated
2. Child∗2 or child
restraint system∗ 3OFF"∗5OffFlashing∗4Deactivated
Activated
Activated
3. UnoccupiedNot
illuminatedOffOffDeactivatedDeactivated
4. There is a
malfunction in the
system
OFF"OnOffDeactivatedActivated
∗1: The system judges a person of adult size as an adult. When a smaller adult sits in the front passenger seat, the system may
recognize him/her as a child depending on his/her physique and posture.
∗2: When a larger child who has outgrown a child restraint system sits in the front passenger seat, the system may recognize him/h er
as an adult depending on his/her physique or posture.
∗ 3: Never install a rear−facing child restraint system on the front passenger seat. A forward−facing child restraint system should only be
installed on the front passenger seat when it is unavoidable. (See Child restraint" on page 96 in this Section as for installi ng the
child restraint system.)
∗ 4: In the event the front passenger does not wear a seat belt.
∗5: In case the indicator is not illuminated, see Child restraint" on page 96 as for installing the child restraint system pr operly.

94
CAUTION
To avoid potential death or serious
injury when the front passenger occu-
pant classification system does not
detect the conditions correctly, ob-
serve the following.
Make sure the front passenger oc-
cupant classification indicator light
indicates ON" when using the seat
belt extender for the front passen-
ger seat. If the indicator light indi-
cates OFF", disconnect the extend-
er tongue from the seat belt buckle,
then reconnect the seat belt. Recon-
nect the seat belt extender after
making sure the indicator light indi-
cates ON". If you use the seat belt
extender while the indicator light
indicates OFF", the front passen-
ger airbag and side airbag on the
front passenger side may not acti-
vate correctly, which could cause
death or serious injury in the event
of collision.
Do not recline the front passenger
seatback so far that it touches a
second seat. This may cause the
OFF" indicator to be illuminated,
which indicates that the passen-
ger’s airbags will not deploy in the
event of a severe accident. If the
seatback touches the rear/second
seat, return the seatback to a posi-
tion where it does not touches the
rear/second seat.
Keep the front passenger seatback
as upright as possible when the ve-
hicle is moving. Reclining the seat-
back excessively may lessen the ef-
fectiveness of the seat belt system.
If an adult sits in the front passen-
ger seat, the occupant classification
indicator light should indicate ON".
If the OFF" indicator is illumina-
ted, 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 OFF" indica-
tor still remains illuminated, either
ask the passenger to move to the
rear/second seat, or if that is not
possible, move the front passenger
seat fully rearward.
Wear the seat belt properly.
Make sure the front passenger’s
seat belt tab has not been left in-
serted into the buckle before some-
one sits in the front passenger
seat.
Do not apply a heavy load to the
front passenger seat.
Do not put weight on the front pas-
senger seat by putting your hands
or feet on the front passenger seat
seatback from the rear/second pas-
senger seat.
Do not let a rear/second 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.
Child restraint systems installed on
the rear/second seat should not
contact the front seatbacks.

95
When it is unavoidable to install the
forward−facing child restraint sys-
tem on the front passenger seat,
install the child restraint system on
the front passenger seat in the
proper order. (As for the installation
order, see Installation with seat
belt" on page 99 in this Section.)
Do not remove the front seats.
Do not kick the front passenger
seat or subject it to severe impact.
Otherwise, the SRS warning light
may come on to indicate a malfunc-
tion of the detection system. In this
case, contact your Toyota dealer im-
mediately.
The front passenger occupant classifica-
tion indicator light may indicate ON" (the
front passenger airbag and side airbag on
the front passenger seat may deploy)
even if observing the above cautions,
when a child sits in, or a forward−facing
child restraint system is installed on the
front passenger seat. Refer to all the cau-
tions in SRS airbags" on page 74 and
Child restraint" on page 96 in this Sec-
tion.
CY13302
The roll sensing of curtain shield air-
bags off switch (RSCA OFF" switch)
can turn off the curtain shield airbags
and seat belt pretensioners in a vehicle
rollover. This switch should only be
used if inflation is not desired (such as
extreme off−road driving).When you push the RSCA OFF" switch
for a few seconds with the engine switch
on, the RSCA OFF" indicator light comes
on and the roll sensing function is turned
off. When you push the switch again, the
indicator light goes off and the roll sens-
ing function is turned on. (For details
about the roll sensing function, see
SRS side airbags and curtain shield
airbags" on page 81 in this Section.)
In a severe side impact, the curtain shield
airbags on impacted side will inflate even
if the roll sensing function is turned off.
(For details about the curtain shield air-
bags, see SRS side airbags and curtain
shield airbags" on page 81 in this Sec-
tion.)
In a severe frontal impact, the seat belt
pretensioners will work even if the roll
sensing function is turned off. (For details
about the seat belt pretensioners, see
Seat belt pretensioners" on page 71 in
this Section.)
If the engine switch is turned to ACC" or
LOCK" with the roll sensing function off
and then the engine switch is turned back
to ON", the roll sensing function will turn
back on automatically.
Roll sensing of curtain shield
airbags off switch