2005 TOYOTA 4RUNNER Owners Manual

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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, warning light, “RSCA OFF” indicator
light, interconnecting wiring and power
sources. (For details, see “Service remind-
er indicators and warning buzzers” on
page 145 in Section 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
ignition key is turned to the “ON” posi-
tion 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.
In the following cases, contact your Toyota
dealer as soon as possible:
The SRS front airbags have been in-
flated.
The front of the vehicle (shaded in the
illustration) was involved in an accident
that was not severe enough to cause
the SRS front airbags to inflate.
The pad section of the steering wheel
or dashboard (shaded in the illustra-
tion) is scratched, cracked, or other-
wise damaged.
NOTICE
Do not disconnect the battery cables
before contacting your Toyota dealer.

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The SRS (Supplemental Restraint Sys-
tem) side airbags and curtain shield air-
bags are designed to provide further
protection for the driver, front passen-
ger and rear seat passengers
∗
1/second
seat passengers∗ 2 in addition to the pri-
mary safety protection provided by the
seat belts.
∗ 1: Without third seats∗2: With third seats In response to a severe side impact, the
SRS side airbag and curtain shield airbags
in the impacted side work with the seat
belts to help reduce injury by inflating.
The SRS side airbags help reduce injuries
mainly to the driver’s or front passenger’s
chest. The SRS curtain shield airbags
help reduce injuries mainly to the driver ’s,
front passenger ’s or rear/second passen-
ger ’s head and help prevent them from
being thrown out of the vehicle.
The SRS side airbag on the passenger
seat will not activate if there is no pas-
senger sitting in the front passenger seat.
However, the side airbag on the passen-
ger seat may deploy if luggage is put in
the seat, or the seat belt is buckled up
regardless of the presence of the occu-
pant in the seat. (As for the front passen-
ger occupant classification system, see
“—Front passenger occupant classification
system” on page 90 in this Section.)
The SRS curtain shield airbag on the pas-
senger side are activated even with no
passenger in the front seat or rear/second
outside seat. Roll sensing function:
In response to a vehicle rollover, the cur-
tain shield airbags on both sides work
with the seat belts to help reduce injury
by inflating. The curtain shield airbags
help reduce injuries mainly to the driver ’s,
front passenger ’s or rear/second passen-
ger ’s head and help prevent them from
being thrown out of the vehicle. (This
function can be turned off if inflation is
not desired. See “Roll sensing of curtain
shield airbags off switch” on page 94 in
this Section.)
The SRS curtain shield airbags may acti-
vate even when the side airbags are not
activated.
Always wear your seat belt properly.
—SRS side airbags and
curtain shield airbags

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CAUTION
The SRS side airbag and curtain
shield airbag system is designed
only as a supplement to the
primary protection of the driver,
front passenger and rear /second
passenger seat belt systems. To
ensure maximum protection in an
accident, the driver and all passen-
gers in the vehicle must wear their
seat belts properly. Wearing a seat
belt properly during an accident
reduces the chances of death or
serious injury or being thrown out
of the vehicle. For instructions and
precautions concerning the seat
belt system, see “Seat belts” on
page 63 in this Section.
Do not allow anyone to lean his/her
head or any part of his/her body
against the door or the area of the
seat, front pillar, rear pillar or roof
side rail from which the SRS side
airbag and curtain shield airbag
deploy even if he/she is a child
seated in the child restraint system.
It is dangerous if the SRS side air-
bag and curtain shield airbag in-
flate, and the impact of the deploy-
ing airbag could cause death or se-
rious injury to the occupant.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
95 in this Section.

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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.
Collision from the rear
Vehicle rollover
Collision from the front
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.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.

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The angle of
vehicle tip−up
is marginal Skidding vehicle
hitting a curb
stone
The curtain shield airbags may inflate
if the angle of vehicle tipup is margin-
al or if the skidding vehicle’s tires hit
a curb stone laterally as shown in the
illustration.
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 lowspeed side collision.
Hitting a curb, edge
of pavement or
hard surface Falling 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.

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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 airbags 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 airbags
with non −toxic gas to help restrain the
lateral motion of the occupants. 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 desi gned 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.

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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.
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.
Ty p e A
Ty p e B

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Make sure the “RSCA OFF” indica-
tor light is off. The curtain shield
airbags will not inflate in a vehicle
rollover if this indicator light is on
and you may be killed or seriously
injured. For details, see “Roll sens-
ing of curtain shield airbags off
switch” on page 94 in this Section.
Do not allow anyone to get his/her
head closer to the area where the
side airbag and curtain shield air-
bag inflate, since these airbags
could inflate with considerable
speed and force. Otherwise, he/she
may be killed or seriously injured.
Special care should be taken espe-
cially when you have a small child
in the vehicle.Do not allow anyone to kneel on
the passenger seat, facing the pas-
senger ’s side door, since the side
airbag and curtain shield airbag
could inflate with considerable
speed and force. Otherwise, he/she
may be killed or seriously injured.
Special care should be taken espe-
cially when you have a small child
in the vehicle.