2005 SUBARU LEGACY sensor

1-75
Seat, seatbelt and SRS airbags
– CONTINUED –
!Operation
A) Driver’s side
B) Passenger’s side
The SRS airbag can function only when the ignition switch is in the “ON” position.
The Subaru advanced frontal airbag system is de-
signed to determine activation or deactivation condi-
tion of the front passenger’s SRS frontal airbag de-
pending on the total load on the front passenger’s seat
monitored by the front passenger’s occupant detection
system weight sensor. For this reason, only the driv-
er’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 predetermined amount of force during a frontal colli-
sion, 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 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 pas-
senger’s SRS frontal airbag. After the deployment, the
SRS airbag immediately start to deflate so that the
driver’s vision is not obstructed. The time required
A
B
UB1575BB

1-85
Seat, seatbelt and SRS airbags
– CONTINUED –
!Operation
A) SRS curtain airbags operation
B) SRS side airbags operation
The SRS side airbag and SRS curtain airbag can func-
tion only when the ignition switch is in the “ON” posi-tion.
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 de-
ploys independently of the driver’s and front passen-
ger’s SRS frontal airbags in the steering wheel and in- strument panel.
An impact sensor is incorporated into each of the ve-
hicle’s center and rear pillars. If either sensor detects
a certain predetermined amount of force during a side
impact collision, the control module sends a signal to
the side airbag module and curtain airbag module on
the impacted side of the vehicle, instructing them to in-
flate the SRS side airbag and SRS curtain airbag.
Then the side airbag module and curtain airbag mod-
ule produces gas, which instantly inflates the SRS
side airbag and SRS curtain airbag. After the deploy-
ment, the SRS side airbag immediately starts to de-
flate. 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 fol-
lowing deployment then slowly deflates.
The SRS side airbag and SRS curtain airbag deploys
even when no one occupies the seat on the side on
which an impact is applied.
When the SRS side airbag and SRS curtain airbag de-
ploys, a sudden, fairly loud inflation noise will be heard
and some smoke will be released. These occurrences
are normal result of the deployment. This smoke does
not indicate a fire in the vehicle.
A
B
UB1543CB

1-90
Seat, seatbelt and SRS airbags
position.
The following components are monitored by the indi- cator: "
Front sub sensor (Right hand side)
" Front sub sensor (Left hand side)
" Airbag control module (including impact sensors)
" Frontal airbag module (Driver’s side)
" Frontal airbag module (Front passenger’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)
" Side airbag sensor (Rear wheel house right hand
side) " Side airbag sensor (Rear wheel house left hand
side)" Curtain airbag module (Right side)
" Curtain airbag module (Left side)
" Seatbelt pretensioner (Driver’s side)
" Seatbelt pretensioner (Front passenger’s side)
" Seatbelt buckle switch (Driver’s side)
" Seatbelt buckle switch (Front passenger’s side)
" Driver’s seat position sensor
" Front passenger’s occupant detection system
weight sensor" Front passenger’s occupant detection control mod-
ule "
Front passenger’s frontal airbag ON and OFF indi-
cator" All related wiring
If the warning light exhibits any of the following
conditions, there may be a malfunction in the
seatbelt pretensioners and/or SRS airbag sys-
tem. Immediately take your vehicle to your
nearest SUBARU dealer to have the system
checked. Unless checked and properly re-
paired, the seatbelt pretensioners and/or SRS
airbags will operate improperly (e.g. SRS air-
bags may inflate in a very minor collision or not
inflate in a severe collision), which may in-
crease the risk of injury. "Flashing or flickering of the indicator light
" No illumination of the warning light when the
ignition switch is first turned to the “ON” posi- tion " Continuous illumination of the warning light
"Illumination of the warning light while driving

1-91
Seat, seatbelt and SRS airbags
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!SRS airbag system servicing
"When discarding an airbag module or scrap-
ping the entire vehicle damaged by a collision,
consult 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, see
your nearest SUBARU dealer. Tampering with
or disconnecting the system’s wiring could re-
sult in accidental inflation of the SRS airbag or
could make the system inoperative, which may
result in serious injury. The wiring harnesses of
the SRS airbag system are covered with yellow
insulation and system connectors are yellow
for easy identification.
If you need service or repair in areas listed be-
low, have an authorized SUBARU dealer per-
form the work. The SRS airbag control module,
impact sensors and airbag modules are stored
in these areas. "
Under the center console
" Inside each front fender
" 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 each side
In the event that the SRS airbag is deployed, re-
placement of the system should be performed
only by an authorized SUBARU dealer. When the
components of the SRS airbag system are re-
placed, use only genuine SUBARU parts.
NOTE
In the following cases, contact your SUBARU deal-
er as soon as possible. " The front part of the vehicle was involved in an
accident in which the only the driver’s SRS frontal
airbag or both driver’s and front passenger’s SRS
frontal airbags did not deploy." The pad of the steering wheel, the cover over the
front passenger’s SRS frontal airbag, or either

2-1
2
Keys and doors
Keys ............................................................... 2-2 Key number ....................................................... 2-3
Immobilizer (if equipped) ............................. 2-4 Security ID plate ................................................ 2-5
Security indicator light ..................................... 2-5
Key replacement ............................................... 2-6
Door locks ..................................................... 2-6 Locking and unlocking from the outside ........ 2-6
Locking and unlocking from the inside .......... 2-8
Battery drainage prevention function ............. 2-9
Power door locking switches ...................... 2-10 Key lock-in prevention function ...................... 2-11
Remote keyless entry system (if equipped) .............................................. 2-12Locking the doors ............................................. 2-13
Unlocking the doors ......................................... 2-14
Unlocking the trunk lid/rear gate ..................... 2-14
Illuminated entry ............................................... 2-15
Vehicle finder function ..................................... 2-15
Sounding a panic alarm ................................... 2-15
Selecting audible signal operation .................. 2-15
Replacing the battery ....................................... 2-16
Replacing lost transmitters .............................. 2-17
Alarm system ................................................ 2-23 System alarm operation ................................... 2-23
Activating and deactivating the alarm system ............................................................. 2-23
If you have accidentally triggered the alarm
system ............................................................. 2-24
Arming the system ............................................ 2-24
Disarming the system ....................................... 2-26 Valet mode ......................................................... 2-27
Passive arming ................................................. 2-27
Tripped sensor identification .......................... 2-29
Shock sensors (dealer option) ........................ 2-29
Child safety locks ......................................... 2-30
Windows ........................................................ 2-31 Power windows ................................................. 2-31
Trunk lid (Sedan) ........................................... 2-35 To open and close the trunk lid from outside ............................................................ 2-35
To open the trunk lid from inside .................... 2-36
To lock and unlock the trunk lid release lever ................................................................. 2-36
Internal trunk lid release handle ...................... 2-37
Rear gate (Station wagon) ............................ 2-39
Moonroof (if equipped) ................................. 2-41 Tilting/sliding moonroof (Sedan) .................... 2-42
Moonroof (Station wagon) ............................... 2-44

2-23
Keys and doors
– CONTINUED –
Alarm system
The alarm system helps to protect your vehicle and
valuables from theft. The horn sounds and the turn
signal lights flash if someone attempts to break into your vehicle.
The system can be armed and disarmed with the re-
mote transmitter.
The system does not operate when the key is inserted
into the ignition switch.
Your vehicle’s alarm system has been set for activa-
tion at the time of shipment from the factory. You can
set the system for deactivation yourself or have it done
by your SUBARU dealer. !System alarm operation
The alarm system will give the following alarms when
triggered: " The vehicle’s horn will sound and the turn signal
lights will flash for 30 seconds. " If any door (or the rear gate/trunk lid) remains open
after the 30-second period, the horn will continue to
sound for a maximum of 3 minutes. If the door (or the
rear gate/trunk lid) is closed while the horn is sound-
ing, the horn will stop sounding with a delay of up to 30 seconds.
The alarm is triggered by: "
Opening a door, the rear gate or trunk lid
" Physical impact to the vehicle, such as forced entry
(only vehicles with shock sensors (dealer option)) ! Activating and deactivating the alarm
system
To change the setting of your vehicle’s alarm system
for activation or deactivation, do the following.
1. Disarm the alarm system (see “Disarming the sys-
tem” in this section).
2. Sit in the driver’s seat and shut all doors (and the
rear gate if your vehicle is a Station wagon).
3. Cycle the ignition switch from “LOCK” to “ON” three
times within 10 seconds, finally placing it in the “ON”
position.
4. Within 10 seconds after step 3, open the driver’s
door and then close it. The current setting will be dis-
played on the odometer/trip meter screen.
5. Within 10 seconds after step 4, operate the driver’s
door locking switch as follows:
To deactivate:
Move the door locking switch to the unlock position
(toward the rear) three times. The odometer/trip meter
screen will display “AL OF”.

2-29
Keys and doors
– CONTINUED –
!Tripped sensor identification
The security indicator light flashes when the alarm
system has been triggered. Also, the number of flash-
es indicates the location of unauthorized intrusion or
the severity of impact on the vehicle. " When the ignition switch is turned to the “ON” posi-
tion, the indicator light will light for 1 second and then
flash as follows: When a door or rear gate (Station wagon) was
opened: 5 times
When the trunk (Sedan) was opened: 4 times
When a strong impact or multiple impacts were
sensed: twice (only vehicles with shock sensors
(dealer option))
When a light impact was sensed: once (only vehi-
cles with shock sensors (dealer option))
! Shock sensors (dealer option)
The shock sensors trigger the alarm system when
they sense impacts applied to the vehicle and when
any of their electric wires is cut. The alarm system
causes the horn to sound and the turn signal lights to
flash for a short time when the sensed impact is weak,
but it warns of a strong impact or multiple impacts by
sounding the horn and flashing the turn signal lights,
both lasting approximately 30 seconds. If you desire, your SUBARU dealer can connect them
and set them for activation or deactivation.
NOTE "
The shock sensors are not always able to sense
impacts caused by breaking in, and cannot sense
an impact that does not cause vibration (such as
breaking the glass using a rescue hammer). " The shock sensors may sense vibration like
those shown below and trigger the alarm system.
Select the settings of the alarm system and shock
sensors appropriately depending on where you
usually park your vehicle.
Example: Vibration from construction site
Vibration in multistory car park
Vibration from trains
" You can have the sensitivity of the shock sen-
sors adjusted to your preference by your SUBARU
dealer.

3-28
Instruments and controls
ing, you should have your Tire Pressure Moni-
toring System checked at a SUBARU dealer as
soon as possible.
If this light comes on while driving, never brake
suddenly and keep driving straight ahead while
gradually reducing speed. Then slowly pull off
the road to a safe place. Otherwise an accident
involving serious vehicle damage and serious
personal injury could occur.
If this light still comes on while driving after ad-
justing the tire pressure, a tire may have signif-
icant damage and a fast leak that causes the
tire to lose air rapidly. If you have a flat tire, re-
place it with a spare tire as soon as possible.
When a spare tire is mounted or a wheel rim is
replaced without the original pressure sensor/
transmitter being transferred, the Low tire pres-
sure warning light will flash. This indicates the
TPMS is unable to monitor all four road wheels.
Contact your SUBARU dealer as soon as possi-
ble for tire and sensor replacement and/or sys-
tem resetting. If the light flashes, promptly con-
tact a SUBARU dealer to have the system in-
spected.
The tire pressure monitoring system is NOT a
substitute for manually checking tire pressure.
The tire pressure should be checked periodical-
ly (at least monthly) using a tire gauge. After
any change to tire pressure(s), the tire pressure
monitoring system will not re-check tire infla-
tion pressures until the vehicle is first driven
more than 20 mph (32 km/h). Be sure to install
the specified size for the front and rear tires.
! ABS warning light
The ABS warning light comes on when the ignition
switch is turned to the “ON” position and goes out after
about two seconds.
This is an indication that the ABS system is working
properly.
If the warning light behaves as follows, the ABS
system may not work properly.
When the warning light is on, the ABS function
shuts down; however, the conventional brake
system continues to operate normally.
(U.S.) (Canada)