TP sensor SUBARU IMPREZA WRX 2011 4.G Owners Manual

26
Function settings
A SUBARU dealer can change the settings of the functions shown in the following table to meet your personal requirements. Contact
the nearest SUBARU dealer for details. If your vehicle is equipped with the genuine SUBARU navigation system, the settings for some
of these functions can be changed using the navigation monitor. For details, please refer to the Owner’s Manual supplement for the
navigation system.
Item Function Possible settings Default setting Page
Alarm system Alarm system Operation/Non-operation Operation 2-16 Monitoring start delay time (after closure of doors) 0 second/30 seconds 30 seconds 2-18
Impact sensor operation (only models with
shock sensors (dealer option)) Operation/Non-operation Non-operation 2-20
Passive arming Operation/Non-operation Non-operation 2-19
Dome light and map lights illumination
(models with moonroof) ON/OFF OFF 2-16
Dome light illumination
(models without moonroof)
Remote keyless entry system Hazard warning flasher Operation/Non-operation Operation 2-8 Audible signal Operation/Non-operation Operation 2-11
Key lock-in prevention Key lock-in prevention Operation/Non-operation Operation 2-7
Remote engine start system
(dealer option) Horn chirp confirmation ON/OFF ON 7-12
Defogger and deicer system for
models with the automatic climate
control system Rear window defogger, outside mirror
defogger and windshield wiper deicer
Operation for 15 minutes/
Continuous operationOperation for 15 minutes 3-48
Dome light Operation of dome light/map light OFF delay timer OFF/Short/Normal/Long Long 6-2, 6-3
Map light for models with a moonroof
Battery drainage prevention function Battery drainage prevention function Operation/Non-operation Operation 2-5

CAUTION
. Do not allow the retractor to roll
up the seatbelt too quickly.
Otherwise, the metal tongue
plates may hit against the trim,
resulting in damaged trim.
. Have the seatbelt fully rolled up
so that the tongue plates are
neatly stored. A hanging tongue
plate can swing and hit against
the trim during driving, causing
damage to the trim. &
Seatbelt maintenance
To clean the seatbelts, use a mild soap
and lukewarm water. Never bleach or dye
the belts because this could seriously
affect their strength.
Inspect the seatbelts and attachments
including the webbing and all hardware
periodically for cracks, cuts, gashes,
tears, damage, loose bolts or worn areas.
Replace the seatbelts even if only minor
damage is found.
CAUTION
. Keep the belts free of polishes,
oils, chemicals and particularly
battery acid.
. Never attempt to make modifica-
tions or changes that will prevent
the seatbelt from operating prop-
erly. Front seatbelt pretensioners
The driver
’s and front passenger ’s seat-
belts have a seatbelt pretensioner. The
seatbelt pretensioners are designed to be
activated in the event of an accident
involving a moderate to severe frontalcollision.
The pretensioner sensor also serves as
the frontal SRS airbag sensor. If the
sensor detects a certain predetermined
amount of force during a frontal collision,
the front seatbelt is quickly drawn back in
by the retractor to take up the slack so that
the belt more effectively restrains the front
seat occupant.
When a seatbelt pretensioner is activated,
an operating noise will be heard and a Seat, seatbelt and SRS airbags
1-19
– CONTINUED –

system inoperative, which may
result in serious injury. Do not
use electrical test equipment on
any circuit related to the seatbelt
pretensioner and SRS airbag
systems. For required servicing
of the seatbelt pretensioner, con-
sult your nearest SUBARU deal-
er.
CAUTION
The front sub sensors are located
on both the right and left sides at the
front of the vehicle, and the SRS
airbag control module including the
impact sensors is located under the
center console. If you need service
or repair in those areas or near the
front seatbelt retractors, have the
work performed by your authorized
SUBARU dealer.
NOTE
If the front part of the vehicle is
damaged in an accident to the extent
that the seatbelt pretensioner does not
operate, contact your SUBARU dealer
as soon as possible. &
Precautions against vehicle modification
Always consult your SUBARU dealer if
you want to install any accessory parts to
your vehicle.
CAUTION
Do not perform any of the following
modifications. Such modifications
can interfere with proper operation
of the seatbelt pretensioners. . 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. Child restraint systems
Infants and small children should always
be placed in an infant or child restraint
system in the rear seat while riding in the
vehicle. You should use an infant or child
restraint system that meets Federal Motor
Vehicle Safety Standards or Canada
Motor Vehicle Safety Standards, is com-
patible with your vehicle and is appro-
priate for the child
’s age and size. All child
restraint systems are designed to be
secured in vehicle seats by lap belts or
the lap belt portion of a lap/shoulder belt
(except those described in “Installation of
child restraint systems by use of lower and
tether anchorages (LATCH) ”F 1-29).
Children could be endangered in an
accident if their child restraints are not Seat, seatbelt and SRS airbags
1-21
– CONTINUED –

1-38Seat, seatbelt and SRS airbags
! Components
1) Airbag control module (including impact
sensors)
2) Frontal airbag module (driver ’s side)
3) Frontal airbag module (front passenger ’s
side)
4) Front sub sensor (left-hand side) 5) Front sub sensor (right-hand side)
6) Side airbag module (driver
’s side)
7) Side airbag module (front passenger ’s
side)
8) Side airbag sensor (center pillar left-hand side) 9) Side airbag sensor (center pillar right-
hand side)
10) Airbag wiring
11) Seatbelt pretensioner (driver ’s side)
12) Seatbelt pretensioner (front passenger ’s
side)
13) Curtain airbag sensor (rear wheel house right-hand side)
14) Curtain airbag sensor (rear wheel house left-hand side)
15) Curtain airbag module (right side)
16) Curtain airbag module (left side)
17) Seatbelt buckle switch (front passenger ’s
side)
18) Front passenger ’s seatbelt tension sen-
sor
19) Front passenger ’s occupant detection
system weight sensor
20) Front passenger ’s occupant detection
control module
21) Front passenger ’s frontal airbag ON and
OFF indicator
22) SRS airbag system warning light
23) Satellite safing sensor (under the rear center seat)

WARNING
Do not attach accessories to the
windshield, or fit an extra-wide mir-
ror over the rear view mirror. If the
SRS airbag deploys, those objects
could become projectiles that could
seriously injure vehicle occupants.
! Driver ’s SRS frontal airbag
The driver ’s SRS frontal airbag uses a
dual stage inflator. The inflator operates in
different ways depending on the severity
of impact.
Have the system inspected by your
SUBARU dealer immediately if the SRS
airbag system warning light illuminates. NOTE
The driver
’s SRS side airbag, SRS
curtain airbag and seatbelt preten-
sioner are not controlled by the
SUBARU advanced frontal airbag sys-tem. ! Front passenger ’s SRS frontal air-
bag
The front passenger ’s SRS frontal airbag
uses a dual stage inflator. The inflator
operates in different ways depending on
the severity of impact.
The total load on the seat is monitored by
the occupant detection system ’s weight
sensor located under the seat.
The system has another sensor that
monitors the tension of the front passen-
ger seatbelt. Using the total seat load and
seatbelt tension data from the sensors,
the occupant detection system determines
whether the front passenger ’s SRS frontal
airbag should or should not be inflated.
The occupant detection system may not
inflate the front passenger ’s SRS frontal
airbag even when the driver ’s SRS frontal
airbag deploys. This is normal.
Observe the following precautions. Failure
to do so may prevent the SUBARU
advanced frontal airbag system from
functioning correctly or cause the system
to fail. .
Do not apply any strong impact to the
front passenger ’s seat such as by kicking.
. Do not spill liquid on the front passen-
ger ’s seat. If liquid is spilled, wipe it off
immediately. . Do not remove or disassemble the front
passenger ’s seat.
. Do not install any accessory (such as
an audio amplifier) other than a genuine
SUBARU accessory under the front pas-senger ’s seat.
. Do not place anything (shoes, umbrel-
la, etc.) under the front passenger ’s seat.
. The front passenger ’s seat must not be
used with the head restraint removed. . Do not leave any article including a
child restraint system on the front passen- ger ’s seat or the seatbelt tongue and
buckle engaged when you leave yourvehicle. . Do not place a magnet near the
seatbelt buckle and the seatbelt retractor.. Do not use front seats with their back-
ward-forward position and seatback not
being locked into place securely. If any of
them are not locked securely, adjust them
again. For adjusting procedure, refer to“ Front seats ”F 1-2.
If the seatbelt buckle switch and/or frontpassenger ’s occupant detection system
have failed, the SRS airbag system Seat, seatbelt and SRS airbags
1-41
– CONTINUED –

1-46Seat, seatbelt and SRS airbags
The SRS airbag can function only when
the ignition switch is in the “ON ”position.
The SUBARU advanced frontal airbag
system is designed to determine the
activation or deactivation condition of the
front passenger ’s SRS frontal airbag
depending on the total load on the frontpassenger ’s seat monitored by the front
passenger ’s occupant detection system
weight sensor. For this reason, only thedriver ’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 and the impact
sensors in the airbag control module
detect a predetermined amount of force
during a frontal collision, the control
module sends signals to the airbag
module(s) (only driver ’s module or both
driver ’s and front passenger ’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 simulta-
neously, depending on the severity of
impact, 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 deployment, the SRS airbag imme-
diately starts to deflate so that the driver
’s
vision is not obstructed. The time required
from detecting impact to the deflation of
the SRS airbag after deployment is short-
er 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 released. These
occurrences are a normal result of the
deployment. This smoke does not indicate
a fire in the vehicle.
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 thedriver ’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 vehicleitself.

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

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
– CONTINUED –

Keys..................................................................... 2-2
Key number plate ................................................ 2-2
Immobilizer .......................................................... 2-2
Security ID plate .................................................. 2-3
Security indicator light ........................................ 2-3
Key replacement ................................................. 2-3
Door locks ........................................................... 2-4
Locking and unlocking from the outside .. ............ 2-4
Locking and unlocking from the inside ................ 2-5
Battery drainage prevention function ................... 2-5
Power door locking switches ............................. 2-6
Key lock-in prevention function ........................... 2-7
Remote keyless entry system ............................ 2-8
Locking the doors ............................................... 2-9
Unlocking the doors ............................................ 2-9
Opening the trunk lid/unlocking rear gate ........... 2-10
Vehicle finder function ........................................ 2-10
Sounding a panic alarm ...................................... 2-10
Selecting audible signal operation ...................... 2-11
Replacing the battery ......................................... 2-11
Replacing lost transmitters ................................. 2-12 Alarm system
..................................................... 2-16
System operation ............................................... 2-16
Activating and deactivating the alarm system ..... 2-16
If you have accidentally triggered the alarm system ............................................................ 2-17
Arming the system ............................................ 2-17
Disarming the system ........................................ 2-19
Valet mode ........................................................ 2-19
Passive arming .................................................. 2-19
Tripped sensor identification .............................. 2-20
Shock sensors (dealer option).. .......................... 2-20
Child safety locks .............................................. 2-21
Windows ............................................................. 2-21
Power windows ................................................. 2-21
Trunk lid (4-door) ............................................... 2-25
To open and close the trunk lid from outside . ..... 2-25
To open the trunk lid from inside. ....................... 2-25
To lock and unlock the trunk lid release lever ................................................................ 2-25
Internal trunk lid release handle ......................... 2-25
Rear gate (5-door) .............................................. 2-27
Moonroof (if equipped) ...................................... 2-29
Moonroof switches ............................................ 2-29
Sun shade ......................................................... 2-30 Keys and doors
2