belt SUBARU IMPREZA 2011 4.G Repair Manual

1-52Seat, seatbelt and SRS airbags
A hands-free microphone or
other accessory in such a loca-
tion could be propelled through
the cabin with great force by the
curtain airbag, or it could prevent
correct deployment of the curtain
airbag. In either case, the result
could be serious injuries.
. Never hang or place coat hangers
or other hard or pointed objects
near the side windows. If such
items are present when the SRS
curtain airbags deploy, they
could be thrown through the
passenger compartment and
cause serious injuries. They
could also prevent proper opera-
tion of the SRS curtain airbags.WARNING
Do not put any kind of cover or
clothes or other objects over either
front seatback and do not attach
labels or stickers to the front seat
surface on or near the SRS side
airbag. They could prevent proper
deployment of the SRS side airbag,
reducing protection available to the
front seat ’s occupant.
! Operation
The SRS side airbag and SRS curtain
airbag can function only when the ignition
switch is in the “ON ”position.
The driver ’s and front passenger ’s SRS
side airbags and SRS curtain airbags deploy independently of each other since
each has its own impact sensor. There-
fore, they may not both deploy in the same
accident. Also, the SRS side airbag and
SRS curtain airbag deploys independently
of the driver
’s and front passenger ’s SRS
frontal airbags in the steering wheel and
instrument panel.
An impact sensor, which senses impact
force, is located in each of the left and
right center pillars and rear wheel houses.
Another impact sensor, which also senses
impact force, is located under the rear
center seat. If one of the center pillar
impact sensors and the impact sensor that
is located under the rear center seat
together sense an impact force above a
predetermined level in a side collision, the
control module causes both the SRS side
airbag and curtain airbag on the impacted
side to inflate regardless of whether the
rear wheel house impact sensor on the
same side senses an impact. If one of the
rear wheel house impact sensors and the
impact sensor that is located under the
rear center seat together sense an impact
force above a predetermined level, the
control module causes only the SRS
curtain airbag on the impacted side toinflate.
After the deployment, the SRS side airbag

immediately starts to deflate. The time
required from detection of an impact to
deflation of an SRS side airbag after
deployment is shorter than the blink of
an eye.
The SRS curtain airbag remains inflated
for a while following deployment then
slowly deflates.
The SRS side airbag and SRS curtain
airbag deploy even when no one occupies
the seat on the side on which an impact isapplied.
When the SRS side airbag and SRS
curtain airbag deploy, a sudden, fairly loud
inflation noise will be heard and some
smoke will be released. These occur-
rences are a normal result of the deploy-
ment. This smoke does not indicate a fire
in the vehicle.
CAUTION
Do not touch the SRS side airbag
system components around the
front seat seatback with bare hands
right after deployment. Doing so can
cause burns because the compo-
nents can be very hot as a result ofdeployment.
After deployment, do not touch any
part of the SRS curtain airbag system (from the front pillar to the
part of the roof side over the rear
seat). Doing so can cause burns
because the components can be
very hot as a result of deployment.
The SRS side airbag and SRS curtain
airbag are designed to deploy in the event
of an accident involving a moderate to
severe side impact collision. It is basically
not designed to deploy in a lesser side
impact. Also, it is basically not designed to
deploy in frontal or rear impacts because
SRS side airbag and SRS curtain airbag
deployment would not help the occupant
in those situations.
Each SRS side airbag and SRS curtain
airbag are designed to function on a one-
time-only basis.
SRS side airbag and SRS curtain airbag
deployment depend on the level of force
experienced in the passenger compart-
ment during a side impact collision. That
level differs from one type of collision to
another, and it may have no bearing on
the visible damage done to the vehicleitself. !
Example of the type of accident in
which the SRS side airbag and SRS
curtain airbag will most likely de-
ploy.
A severe side impact near the front seat
activates the SRS side airbag and SRS
curtain airbag. Seat, seatbelt and SRS airbags
1-53
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1-54Seat, seatbelt and SRS airbags
! Examples of the types of accidents in which the SRS side airbag and SRS
curtain airbag are unlikely to deploy.
1) The vehicle is involved in an oblique
side-on impact.
2) The vehicle is involved in a side-on impact in an area outside the vicinity of
the passenger compartment.
3) The vehicle strikes a telephone pole or similar object.
4) The vehicle is involved in a side-on impact from a motorcycle.
5) The vehicle rolls onto its side or roof.
There are many types of collisions which
might not necessarily require SRS side
airbag and SRS curtain airbag deploy-
ment. In the event of accidents like those
illustrated, the SRS side airbag and SRS
curtain airbag may not deploy depending
on the level of accident forces involved.

!Examples of the types of accidents
in which the SRS side airbag and
SRS curtain airbag will basically not
deploy.
1) The vehicle is involved in frontal collision
with another vehicle (moving or station- ary). 2) The vehicle is struck from behind.
The SRS side airbag and SRS curtain
airbag are basically not designed to
deploy if the vehicle is involved in a frontal
collision or is struck from behind. Exam-
ples of such accidents are illustrated.
1) First impact
2) Second impact
A) SRS curtain airbag
B) SRS side airbag
In an accident where the vehicle is struck
from the side more than once, the SRS
side airbag and SRS curtain airbag deploy
only once on the first impact.
Example: In the case of a double side
impact collision, first with one vehicle and
immediately followed by another from the
same direction, once the SRS side airbag and SRS curtain airbag are activated on
the first impact, they will not be activated
on the second. &
SRS airbag system monitors
Turbo modelsSeat, seatbelt and SRS airbags
1-55
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1-56Seat, seatbelt and SRS airbags
Non-turbo models
A diagnostic system continually monitors
the readiness of the SRS airbag system
(including front seatbelt pretensioners)
while the vehicle is being driven. The
SRS airbag system warning light “AIR-
BAG ”will show normal system operation
by lighting for approximately 6 seconds
when the ignition switch is turned to the“ ON ”position.
The following components are monitored
by the indicator: . Front sub sensor (right-hand side)
. Front sub sensor (left-hand side)
. Airbag control module (including im-
pact sensors). Frontal airbag module (driver ’s side)
. Frontal airbag module (front passen- ger
’s side)
. Side airbag sensor (center pillar right-
hand side). Side airbag sensor (center pillar left-
hand side). Side airbag module (driver ’s side)
. Side airbag module (front passenger ’s
side). Curtain airbag sensor (rear wheel
house right-hand side). Curtain airbag sensor (rear wheel
house left-hand side). Curtain airbag module (right side)
. Curtain airbag module (left side)
. Satellite safing sensor (under the rear
center seat) . Seatbelt pretensioner (driver ’s side)
. Seatbelt pretensioner (front passen-
ger ’s side)
. Seatbelt buckle switch (front passen-
ger ’s side)
. Front passenger ’s seatbelt tension
sensor . Front passenger ’s occupant detection
system weight sensor. Front passenger ’s occupant detection
control module. Front passenger ’s frontal airbag ON
and OFF indicator. All related wiring
WARNING
If the warning light exhibits any of
the following conditions, there may
be a malfunction in the seatbelt
pretensioners and/or SRS airbag
system. Immediately take your vehi-
cle to your nearest SUBARU dealer
to have the system checked. Unless
checked and properly repaired, the
seatbelt pretensioners and/or SRS
airbag will not operate properly in
the event of a collision, which may
increase the risk of injury. . Flashing or flickering of the warn-
ing light
. No illumination of the warning
light when the ignition switch is
first turned to the “ON ”position
. Continuous illumination of the
warning light
. Illumination of the warning light
while driving

&SRS airbag system servicing
WARNING
. When discarding an airbag mod-
ule or scrapping the entire vehi-
cle damaged by a collision, con-
sult your SUBARU dealer.
. The SRS airbag has no user-
serviceable parts. Do not use
electrical test equipment on any
circuit related to the SRS airbag
system. For required servicing of
the SRS airbag, consult your
nearest SUBARU dealer. Tamper-
ing with or disconnecting the system ’s wiring could result in
accidental inflation of the SRS
airbag or could make the system
inoperative, which may result in
serious injury.
CAUTION
If you need service or repair in areas
indicated in the following list, have
the work performed by an author-
ized SUBARU dealer. The SRS air-
bag control module, impact sensors
and airbag modules are stored in
these areas. .
Under the center console
. On both the right and left sides at
the front of the vehicle
. Steering wheel and column and
nearby areas
. Top of the dashboard on front
passenger ’s side and nearby
areas
. Each front seat and nearby area
. Inside each center pillar
. In each roof side (from the front
pillar to a point over the rear seat)
. Between the rear seat cushion
and rear wheel house on eachside
. Under the rear center seat
In the event that the SRS airbag is
deployed, replacement of the system
should be performed only by an author-
ized SUBARU dealer. When the compo-
nents of the SRS airbag system are
replaced, use only genuine SUBARUparts. NOTE
In the following cases, contact your
SUBARU dealer as soon as possible. . The front part of the vehicle was
involved in an accident in which only the driver
’s SRS frontal airbag or both
driver ’s and front passenger ’sSRS
frontal airbags did not deploy. . The pad of the steering wheel, the
cover over the front passenger ’s SRS
frontal airbag, or either roof side (from
the front pillar to a point over the rear
seat) is scratched, cracked, or other-
wise damaged.. Center pillar, rear wheel house or
rear sub frame, or an area near these
parts, was involved in an accident in
which the SRS side airbag and SRS
curtain airbag did not deploy.. The fabric or leather of either front
seatback is cut, frayed, or otherwise damaged. . The rear part of the vehicle was
involved in an accident in which no
SRS airbag was deployed.
& Precautions against vehicle modification
WARNING
To avoid accidental activation of the
system or rendering the system
inoperative, which may result in
serious injury, no modifications
should be made to any components
or wiring of the SRS airbag system. Seat, seatbelt and SRS airbags
1-57
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1-58Seat, seatbelt and SRS airbags
This includes following modifica- tions. .Installation of custom steering
wheels
. Attachment of additional trim
materials to the dashboard
. Installation of custom seats
. Replacement of seat fabric or
leather
. Installation of additional fabric or
leather on the front seat
. Attachment of a hands-free mi-
crophone or any other accessory
to a front pillar, a center pillar, a
rear pillar, the windshield, a side
window, an assist grip, or any
other cabin surface that would be
near a deploying SRS curtainairbag.
. Installation of additional electri-
cal/electronic equipment such as
a mobile two-way radio on or
near the SRS airbag system
components and/or wiring is not
advisable. This could interfere
with proper operation of the
SRS airbag system.CAUTION
Do not perform any of the following
modifications. Such modifications
can interfere with proper operation
of the SRS airbag system. . Attachment of any equipment
(bush bar, winches, snow plow,
skid plate, etc.) other than genu-
ine SUBARU accessory parts to
the front end.
. Modification of the suspension
system or front end structure.
. Installation of a tire of different
size and construction from the
tires specified on the vehicle
placard attached to the driver ’s
door pillar or specified for indivi-
dual vehicle models in this Own-er ’s Manual.
. Attachment of any equipment
(side steps or side sill protectors,
etc.) other than genuine SUBARU
accessory parts to the side body.
Always consult your SUBARU dealer if
you want to install any accessory parts on
your vehicle.

1) Rotate the lock lever rearward.
2) Close the door.
To lock the door from the outside without
the key, rotate the lock lever rearward and
then close the door.
To lock the door from the outside using the
power door locking switch, push the front
side of the switch ( “LOCK ”side) and then
close the door. In this case, all closed
doors and the rear gate (for 5-door) are
locked at the same time.
Always make sure that all doors and the
rear gate (for 5-door) are locked before
leaving your vehicle. NOTE
Make sure that you do not leave the key
inside the vehicle when locking the doors from the outside without the key.
& Locking and unlocking from
the inside
1) Lock
2) Unlock
To lock the door from the inside, rotate the
lock lever rearward. To unlock the door
from the inside, rotate the lock leverforward.
The red mark on the lock lever appears
when the door is unlocked.
Pull the inside door handle to open an
unlocked door.
Always make sure that all doors and the
rear gate (for 5-door) are closed before
starting to drive.
WARNING
Keep all doors locked when you
drive, especially when small chil-
dren are in your vehicle.
Along with the proper use of seat-
belts and child restraints, locking
the doors reduces the chance of
being thrown out of the vehicle in anaccident.
It also helps prevent passengers
from falling out if a door is acciden-
tally opened, and intruders from
unexpectedly opening doors and
entering your vehicle.
& Battery drainage prevention function
If a door or the rear gate (5-door) is not
completely closed, the interior lights will
remain illuminated as a result. However,
several lights are automatically turned off
by the battery drainage prevention func-
tion to prevent the battery from dischar-
ging. The following interior lights are
affected by this function. Keys and doors
2-5
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Ignition switch..................................................... 3-3
LOCK .................................................................. 3-3
Acc..................................................................... 3-4
ON...................................................................... 3-4
START ................................................................ 3-4
Key reminder chime ............................................ 3-5
Ignition switch light ............................................. 3-5
Hazard warning flasher ....................................... 3-5
Meters and gauges. ............................................. 3-6
Combination meter illumination ........................... 3-6
Canceling the function for meter/gauge needle movement upon turning on the ignition switch ............................................................... 3-6
Meter/Gauge needle illumination setting (turbo models except STI) ............................................ 3-7
Speedometer ....................................................... 3-8
Odometer/Trip meter ............................................ 3-8
Tachometer ......................................................... 3-9
Fuel gauge ......................................................... 3-10
Temperature gauge (turbo models) ..................... 3-11
REV indicator light and buzzer (STI). ................ 3-11
Setting the alarm-level engine speed ................... 3-12
Deactivating the REV alarm system ..................... 3-13
Warning and indicator lights ............................. 3-13
Seatbelt warning light and chime ........................ 3-14
SRS airbag system warning light ........................ 3-15
Front passenger ’s frontal airbag ON and OFF
indicators ......................................................... 3-16
CHECK ENGINE warning light/Malfunction indicator lamp .................................................. 3-16 Coolant temperature low indicator light (non-
turbo models)/Coolant temperature high
warning light (non-turbo models) ...................... 3-17
Charge warning light .......................................... 3-18
Oil pressure warning light .................................. 3-18
AT OIL TEMP warning light (AT models) .............. 3-18
Rear differential oil temperature warning light (STI) ................................................................ 3-19
Low tire pressure warning light (U.S.-spec. models) ........................................................... 3-19
ABS warning light .............................................. 3-21
Brake system warning light ................................ 3-21
Low fuel warning light ....................................... 3-22
Hill start assist warning light (MT models –if
equipped)/Hill start assist OFF indicator light (STI) ................................................................ 3-22
Door open warning light .................................... 3-23
All-Wheel Drive warning light (AT models) ..... ..... 3-23
Vehicle Dynamics Control operation indicator light ................................................................ 3-23
Vehicle Dynamics Control warning light/Vehicle Dynamics Control OFF indicator light/Traction
Control OFF indicator light (STI) ....................... 3-23
Security indicator light ....................................... 3-25
SPORT mode indicator light (AT models) ............ 3-25
SI-DRIVE indicator light (STI) .............................. 3-26
Shift-up indicator light (STI) ............................... 3-26
Select lever/gear position indicator (AT models) ..................................................... 3-26
Turn signal indicator lights ................................. 3-26
High beam indicator light ................................... 3-26
Cruise control indicator light .............................. 3-26
Instruments and controls
3

to OFF, OFF to ON, or the vehicle starts
moving before the setting procedure isfinished..Setting the speed is impossible
when the vehicle is moving.. The set engine speed may differ
from the engine speed shown by the
tachometer. Use the engine speed
shown by the tachometer as a roughguide.. If the setting operation is performed
with the engine switch turned off, the
REV indicator light turns off and the
setting operation is aborted when you
have stopped the setting operation for
approximately 10 seconds. . If the setting operation is performed
with the engine switch turned off, the
REV indicator light turns off and the
setting operation is aborted when you
open and close the driver ’s door.
& Deactivating the REV alarm system
To deactivate the REV indicator light and
buzzer functions of the REV alarm system,
set the thousands place of the alarm-level
engine speed to “–”. Warning and indicator lights
Several of the warning and indicator lights
illuminate momentarily and then turn off
when the ignition switch is initially turned
to the
“ON ”position. This permits check-
ing the operation of the bulbs.
Apply the parking brake and turn the
ignition switch to the “ON ”position. For
the system check, the following lights
illuminate and turn off after several sec-
onds or after the engine has started:
: Seatbelt warning light (The seatbelt warning light turns off
only when the driver fastens theseatbelt.)
: Front passenger ’s seatbelt warning
light
(The seatbelt warning light turns off
only when the front seat passenger
fastens the seatbelt.)
: SRS airbag system warning light
ON /
: Front passenger ’s frontal airbag
ON indicator light
/: Front passenger ’s frontal airbag
OFF indicator light
: CHECK ENGINE warning light/Mal- function indicator lamp
: Coolant temperature high warning light(non-turbo models)
: Charge warning light
: Oil pressure warning light
: AT OIL TEMP warning light (AT models)
: Rear differential oil temperature warn-ing light (STI)
: Low tire pressure warning light (U.S.- spec. models)
/: ABS warning light
/: Brake system warning light
: Low fuel warning light
: Hill start assist warning light (MT models –if equipped)/Hill start assist
OFF indicator light (STI)
: Door open warning light
: AWD warning light (AT models)
: Vehicle Dynamics Control operation
indicator light
: Vehicle Dynamics Control warning light/Vehicle Dynamics Control OFF
indicator light/Traction Control OFF
indicator light (STI) Instruments and controls
3-13
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