Get Seat, seatbelt and SRS airbags -> Frontal airbag system operation Guide for Subaru Outback SUV Third Generation (2005-2009)

Black plate (78,1)

北米Model "A2420BE-B" EDITED: 2006/ 7/ 26

1-52 Seat, seatbelt and SRS airbags

! Operation

1) Driver’s side

2) Passenger’s side

The SRS airbag can function only when

the ignition switch is in the “ON” position.

The Subaru advanced frontal airbag sys-

tem is designed to determine the activa-

tion or deactivation condition of the front

passenger’s SRS frontal airbag depend-

ing on the total load on the front passen-

ger’ s seat monitored by the front

passenger’s occupant detection system

weight sensor. For this reason, only the

driver’s SRS frontal airbag may deploy in

the event of a collision, but this does not

mean failure of the system.

If the front sub sensors inside both front

fenders and the impact sensors in the

airbag control module detect a predeter-

mined amount of force during a frontal

collision, the control module sends signals

to the air bag module (s) (only driver’s

module or both driver’s and front passen-

ger ’s modules) instructing the module(s)

to inflate the SRS frontal airbag(s). The

driver’s and front passenger’s SRS frontal

airbags use dual stage inflators. The two

inflators of each airbag are triggered either

sequentially or simultaneously, depending

on the severity of impact, backward-

forward adjustment of the driver’s seat

position and fastening/unfastening of the

seatbelt in the case of the driver’s SRS

frontal airbag and depending on the

severity of impact and the total load on

the seat in the case of the front passen-

ger ’s SRS frontal airbag. After deploy-

ment, the SRS airbag immediately starts

to deflate so that the driver’s vision is not

obstructed. The time required from detect-

ing impact to the deflation of the SRS

airbag after deployment is shorter than the

blink of an eye.

Both when only the driver’s SRS frontal

airbag deploys and the driver’s and front

passenger’s SRS frontal airbags deploy,

the driver’s and front passenger’s seatbelt

pretensioners operate at the same time.

Although it is highly unlikely that the SRS

airbag would activate in a non-accident

situation, should it occur, the SRS airbag

will deflate quickly, not obscuring vision

and will not interfere with the driver’s

ability to maintain control of the vehicle.

When the SRS airbag deploys, a sudden,

fairly loud inflation noise will be heard and

some smoke will be releas ed. These

occurrences are a normal result of the

deployment. This smoke does not indicate

a fire in the vehicle.

Black plate (79,1)

北米Model "A2420BE-B" EDITED: 2006/ 7/ 26

CAUTION

Do not touch the SRS airbag system

components around the steering

wheel and dashboard with bare

hands right after deployment. Doing

so can cause burns because the

components can be very hot as a

result of deployment.

The driver’s SRS frontal airbag and front

passenger’s SRS frontal airbag are de-

signed to deploy in the event of an

accident involving a moderate to severe

frontal collision. It is basically not designed

to deploy in lesser frontal impacts be-

cause the necessary protection can be

achieved by the seatbelt alone. Also, they

are basically not designed to deploy in

side or rear impacts or in roll-over acci-

dents because deployment of only the

driver’s SRS frontal airbag or both driver’s

and front passenger’s SRS frontal airbags

would not help the occupant in those

situations. The driver’s and front passen-

ger’s SRS frontal airbags are designed to

function on a one-time-only basis.

SRS airbag deployment depends on the

level of force experienced in the passen-

ger compartment during a collision. That

level differs from one type of collision to

another, and it may have no bearing on

the visible damage done to the vehicle

itself.

! Examples of accident in which the

driver’s/driver’s and front passen-

ger’s SRS frontal airbag(s) will most

likely deploy.

A head-on collision against a thick con-

crete wall at a vehicle speed of 12 to 19

mph (20 to 30 km/h) or higher activates

only the driver’s SRS frontal airbag or both

driver’s and front passenger’s SRS frontal

airbags. The airbag(s) will also be acti-

vated when the vehicle is exposed to a

frontal impact similar in fashion and

magnitude to the collision described

above.

! Examples of the types of accidents

in which it is possible that the

driver’s/driver’s and front passen-

ger’s SRS frontal airbag(s) will de-

ploy.

The only the driver’s SRS frontal airbag or

Seat, seatbelt and SRS airbags 1-53

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Black plate (80,1)

北米Model "A2420BE-B" EDITED: 2006/ 7/ 26

1-54 Seat, seatbelt and SRS airbags

both driver’s and front passenger’s SRS

frontal airbags may be activated when the

vehicle sustains a hard impact in the

undercarriage area from the road surface

(such as when the vehicle plunges into a

deep ditch, is severely impacted or

knocked hard against an obstacle on the

road such as a curb).

! Examples of the types of accidents

in which deployment of the driver’s/

driver’s and front passenger’s SRS

frontal airbag(s) is unlikely to occur.

There are many types of collisions which

might not necessarily require deployment

of driver’s/driver’s and front passenger’s

SRS frontal airbag(s). If the vehicle strikes

an object, such as a telephone pole or

sign pole, or if it slides under a truck’s load

bed, or if it sustains an oblique offset

frontal impact, the driver’s/driver’sand

front passenger’s SRS frontal airbag(s)

may not deploy depending on the level of

accident forces involved.

Black plate (81,1)

北米Model "A2420BE-B" EDITED: 2006/ 7/ 26

! Examples of the types of accidents

in which the driver’s/driver’s and

front passenger ’s SRS frontal

airbag(s) will basically not deploy.

The driver’s and front passenger’s SRS

frontal airbags are designed basically not

to deploy if the vehicle is struck from the

side or from behind, or if it rolls onto its

side or roof, or if it is involved in a low-

speed frontal collision.

1) First impact

2) Second impact

In an accident where the vehicle is

impacted more than once, the driver’s

and/or front passenger’s SRS frontal

airbag(s) will deploy only once on the first

impact.

Example: In the case of a double collision,

first with another vehicle, then against a

concrete wall in immediate succession,

once either or both of the driver’s and front

passenger’s SRS frontal airbags is/are

activated on the first impact, it/they will not

be activated on the second impact.

& SRS side airbag and SRS

curtain airbag

The SRS side airbag is stored in the door

side of each front seat seatback, which

bears an “SRS AIRBAG” label.

Inamoderatetoseveresideimpact

collision, the SRS side airbag on the

impacted side of the vehicle deploys

between the occupant and the door panel

and supplements the seatbelt by reducing

the impact on the occupant’s chest and

waist. The SRS side airbag operates only

for front seat occupants.

The SRS curtain airbag on each side of

the ca bin is stored in the roof side

(between the front pillar and a point over

the rear seat). An “SRS AIRBAG” mark is

located at the top of each center pillar.

Inamoderatetoseveresideimpact

collision, the SRS curtain airbag on the

impacted side of the vehicle deploys

between the occupant and the side

window and supplements the seatbelt by

reducing the impact on the occupant’s

head.

Seat, seatbelt and SRS airbags 1-55

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Seat, seatbelt and SRS airbags -> Frontal airbag system operation for Your Subaru Outback SUV Third Generation (2005-2009)

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