sensor SUBARU IMPREZA 2016 5.G Owners Manual

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 a multi function display, the settings for some of these functions
can be changed using the display. For details, refer to“Multi function display”F 3-42.
Item Function Possible settingsDefault setting
Alarm system Alarm system Operation/Non-operationOperation
Monitoring start delay time (after
closure of doors) 0 seconds/30 seconds
30 seconds
Impact sensor operation (only
models with shock sensors (dealer
option)) Operation/Non-operation
Non-operation
Passive arming (models without
“ Keyless Access with Push-button
Start system ”) Operation/Non-operation
Non-operation
Dome light and map lights illumina-
tion (models with moonroof) ON/OFF
OFF
Dome light illumination (models
without moonroof)
Keyless Access (if equipped) Hazard warning flasher Operation/Non-operationOperation
Audible signal Operation/Non-operationOperation
Audible signal volume Level 1 to 7Level 5
Door unlock selection function (dri-
ver ’s door unlock) Driver
’s door only/All doors Driver ’s door only
Door unlock selection function (rear
gate unlock) Rear gate only/All doors
Rear gate only
Remote keyless entry system Hazard warning flasher Operation/Non-operationOperation
Audible signal Operation/Non-operationOperation
Audible signal volume Level 1 to 7Level 5
24

Seat, seatbelt and SRS airbags/Front seatbelt pretensioners
&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 frontal
and side collision and rollover accident.
& Seatbelt with shoulder belt
pretensioner
NOTE
This section is applicable to the follow-
ing components.
. Except Crosstrek models:
– Driver ’s seatbelt
– Front passenger ’s seatbelt
. Crosstrek models:
– Driver ’s seatbeltThe pretensioner sensor also serves as
follows.
. SRS frontal airbag sensor
. Side impact sensor
. Front door impact sensor
. Rollover sensor (Crosstrek models)
If the sensor detects a certain predeter-
mined amount of force during frontal or
side collisions or rollover accidents, the
front seatbelt is quickly drawn back in by
the retractor to take up the slack so that
the belt more effectively restrains the
driver.
When a seatbelt pretensioner is activated,
an operating noise will be heard and a
small amount of smoke will be released.
These occurrences are normal and not
harmful. This smoke does not indicate a
1-20

fire in the vehicle.
Once the seatbelt pretensioner has been
activated, the seatbelt retractor remains
locked. Consequently, the seatbelt can not
be pulled out and retracted and therefore
must be replaced.
NOTE
.Seatbelt pretensioners are not de-
signed to activate in minor impacts or
in rear impacts.
. In the case of rollover accidents
– Crosstrek models:
As the curtain airbags deploy, the
driver ’s side seatbelt pretensioner
and front passenger ’sside
shoulder belt pretensioner are acti-
vated simultaneously.
– Except Crosstrek models:
Seatbelt pretensioners are not acti-
vated.
. In cases of frontal collisions, the
following components will operate si-
multaneously.
–Seatbelt pretensioner for driver
– Seatbelt pretensioner for front
passenger
– SRS frontal airbag for driver
– SRS frontal airbag for front pas-
senger*
– SRS curtain airbags (both sides) (if an offset frontal collision occurs)
*: This does not operate if the occupant
detection system deactivates airbag op-
eration. For details, refer to
“Front
passenger ’s SRS frontal airbag ”F 1-48
.
. In cases of side collisions, the
following components will operate si-
multaneously.
–SRS curtain airbag (impacted
side)
– SRS side airbag (impacted side)
(when both the satellite safing sen-
sor and any of the center pillar
impact sensors/front door impact
sensors sense an impact force)
– Seatbelt pretensioner for driver
(when both the satellite safing sen-
sor and the driver ’s side front door
impact sensor sense an impact
force)
However, when a center pillar im-
pact sensor detects a signal faster
than the front door impact sensor,
or both sensors detect signals
simultaneously, the seatbelt preten-
sioner does not activate.
– Seatbelt pretensioner for front
passenger (shoulder belt preten-
sioner only) (when both the satellite
safing sensor and the front passen-
ger ’s side front door impact sensor
sense an impact force) However, when a center pillar im-
pact sensor detects a signal faster
than the front door impact sensor,
or both sensors detect signals
simultaneously, the seatbelt preten-
sioner does not activate.
. Pretensioners are designed to func-
tion on a one-time-only basis. In the
event that a pretensioner is activated,
both the driver ’s and front passenger ’s
seatbelt retractor assemblies should
be replaced only by an authorized
SUBARU dealer. When replacing seat-
belt retractor assemblies, use only
genuine SUBARU parts.
. If either front seatbelt does not
retract or cannot be pulled out due to
a malfunction or activation of the
pretensioner, contact your SUBARU
dealer as soon as possible.
. If the front seatbelt retractor assem-
bly or surrounding area has been
damaged, contact your SUBARU dealer
as soon as possible.
. When you sell your vehicle, we urge
you to explain to the buyer that it has
seatbelt pretensioners by alerting the
buyer to the contents of this section.
Seat, seatbelt and SRS airbags/Front seatbelt pretensioners
–CONTINUED –1-21

passenger
–SRS frontal airbag for driver
– SRS frontal airbag for front pas-
senger*
– SRS curtain airbags (both sides)
(if an offset frontal collision occurs)
*: This does not operate if the occupant
detection system deactivates airbag op-
eration. For details, refer to “Front
passenger ’s SRS frontal airbag ”F 1-48
.
. In cases of side collisions, the
following components will operate si-
multaneously.
–SRS curtain airbag (impacted
side)
– SRS side airbag (impacted side)
(when both the satellite safing sen-
sor and any of the center pillar
impact sensors/front door impact
sensors sense an impact force)
– Seatbelt pretensioner for driver
(when both the satellite safing sen-
sor and the driver ’s side front door
impact sensor sense an impact
force)
However, when a center pillar im-
pact sensor detects a signal faster
than the front door impact sensor,
or both sensors detect signals
simultaneously, the seatbelt preten-
sioner does not activate.
– Seatbelt pretensioner for front passenger (shoulder belt preten-
sioner only) (when both the satellite
safing sensor and the front passen-
ger
’s side front door impact sensor
sense an impact force)
However, when a center pillar im-
pact sensor detects a signal faster
than the front door impact sensor,
or both sensors detect signals
simultaneously, the seatbelt preten-
sioner does not activate.
. Pretensioners are designed to func-
tion on a one-time-only basis. In the
event that a pretensioner is activated,
both the driver ’s and front passenger ’s
seatbelt retractor assemblies should
be replaced only by an authorized
SUBARU dealer. When replacing seat-
belt retractor assemblies, use only
genuine SUBARU parts.
. If either front seatbelt does not
retract or cannot be pulled out due to
a malfunction or activation of the
pretensioner, contact your SUBARU
dealer as soon as possible.
. If the front seatbelt retractor assem-
bly or surrounding area has been
damaged, contact your SUBARU dealer
as soon as possible.
. When you sell your vehicle, we urge
you to explain to the buyer that it has
seatbelt pretensioners by alerting the buyer to the contents of this section.
WARNING
.
To obtain maximum protection,
the occupants should sit in an
upright position with their seat-
belts properly fastened. Refer to
“Seatbelts ”F 1-11.
. Do not modify, remove or strike
the front seatbelt retractor as-
semblies or surrounding area.
This could result in accidental
activation of the seatbelt preten-
sioners or could make the sys-
tem inoperative, possibly result-
ing in serious injury. Seatbelt
pretensioners have no user-ser-
viceable parts. For required ser-
vicing of front seatbelt retractors
equipped with seatbelt preten-
sioners, consult your SUBARU
dealer.
. When discarding front seatbelt
retractor assemblies or scrap-
ping the entire vehicle due to
collision damage or for other
reasons, consult your SUBARU
dealer.
Seat, seatbelt and SRS airbags/Front seatbelt pretensioners
–CONTINUED –1-23

Seat, seatbelt and SRS airbags/Front seatbelt pretensioners
&System monitors
A diagnostic system continually monitors
the readiness of the seatbelt pretensioner
while the vehicle is being driven. The
seatbelt pretensioners share the control
modulewiththeSRSairbagsystem.
Therefore, if any malfunction occurs in a
seatbelt pretensioner, the SRS airbag
system warning light will illuminate. For
details, refer to “SRS airbag system
monitors ”F 1-67.
& System servicing
WARNING
. When discarding a seatbelt re-
tractor assembly or scrapping
the entire vehicle damaged by a
collision, consult your SUBARU
dealer.
. Tampering with or disconnecting
the system’ s wiring could result
in accidental activation of the
seatbelt pretensioner and/or
SRS airbag or could make the
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 sensors and SRS airbag control
modules are located in the following
locations.
.
Front sub sensors: on both the
right and left side at the front of
the vehicle
. Front door impact sensors: on
both front doors
. Satellite safing sensor: under the
rear center seat
. SRS airbag control module (in-
cluding the impact sensors): un-
der the center of the instrument
panel
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 or side 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.
1-24

1) Airbag control module (including impactsensor [all models] and rollover sensor
[Crosstrek models])
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-hand side)
16) Curtain airbag module (left-hand side)
17) Seatbelt buckle switch (front passenger ’s
side)
18) Knee airbag module (driver ’s side)
19) Front passenger ’s occupant detection
system 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)
24) Front door impact sensor (left-hand side)
25) Front door impact sensor (right-hand side)
26) Lap belt pretensioner (front passenger ’s
side in Crosstrek models)
Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
–CONTINUED –
1-47

Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
&SUBARU advanced frontal
airbag system
Your vehicle is equipped with a SUBARU
advanced frontal airbag system that com-
plies with the new advanced frontal airbag
requirements in the amended Federal
Motor Vehicle Safety Standard (FMVSS)
No. 208.
The SUBARU advanced frontal airbag
system automatically determines the de-
ployment force of the driver ’s SRS frontal
airbag at the time of deployment as well as
whether or not to activate the front
passenger ’s SRS frontal airbag and, if
activated, the deployment force of the
SRS frontal airbag at the time of deploy-
ment.
Your vehicle has warning labels on the
driver ’s and front passenger ’s sun visors
beginning with the phrase “EVEN WITH
ADVANCED AIR BAGS” and a tag
attached to the glove box lid beginning
with the phrase “Even with Advanced Air
Bags”. Make sure that you carefully read
the instructions on the warning labels and
tag.
Always wear your seatbelt. The SUBARU
advanced frontal airbag system is a
supplemental restraint system and must
be used in combination with a seatbelt. All
occupants should wear a seatbelt or be
seated in an appropriate child restraint system.
For the locations of the SRS airbags, refer
to
“Components” F1-46.
In a moderate to severe frontal collision,
the following components deploy.
. SRS frontal airbag for driver
. SRS frontal airbag for front passenger
. SRS knee airbag for driver
. SRS curtain airbag*
1
*1: When an offset frontal collision that is severe
enough to deploy the front airbag occurs.
These components supplement the seat-
belts by reducing the impact to the
occupant ’s head, chest and knees.
! 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 and SRS
curtain airbag 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 occupant detection system sensor is
installed under the seat upholstery and
monitors the physique and posture of the
front passenger. Using this information,
the occupant detection system determines
whether the front passenger ’s SRS frontal
airbag should be deployed or not.
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. In this
case, although the front passenger ’s SRS
frontal airbag does not operate, the front
passenger ’s seatbelt pretensioner oper-
ates with the driver ’s seatbelt preten-
sioner. For details about the seatbelt
pretensioner, refer to “Front seatbelt pre-
tensioners ”F 1-20.
CAUTION
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.
1-48

.Do not apply any strong impact
to the front passenger ’sseat
such as by kicking.
. Do not let rear passengers rest
their feet between the front seat-
back and seat cushion.
. Do not spill liquid on the front
passenger ’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 acces-
sory under the front passenger ’s
seat.
. Do not place anything (shoes,
umbrella, etc.) under the front
passenger ’s seat.
. Do not use the front passenger ’s
seat with the head restraint re-
moved.
. Do not leave any articles on the
front passenger ’s seat or the
seatbelt tongue and buckle en-
gaged when you leave your ve-
hicle.
. Do not put sharp object(s) on the
seat or pierce the seat uphols-
tery. .
Do not place a magnet near the
seatbelt buckle and the seatbelt
retractor.
. Do not use front seats with their
forward-backward 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 “Forward and backward
adjustment” F1-3 and “Reclining
the seatback ”F 1-4.
If the seatbelt buckle switch and/or front
passenger ’s occupant detection system
have failed, the SRS airbag system
warning light will illuminate. Have the
system inspected by your SUBARU deal-
er immediately if the SRS airbag system
warning light illuminates.
If your vehicle has sustained impact, this
may affect the proper function of the
SUBARU advanced frontal airbag system.
Have your vehicle inspected at your
SUBARU dealer. Do not use the front
passenger ’s seat while driving the vehicle
to your SUBARU dealer.
NOTE
The front passenger ’s SRS side airbag
and SRS curtain airbag are not con-
trolled by the SUBARU advanced fron- tal airbag system.
!
Passenger ’s frontal airbag ON and
OFF indicators
Refer to “Front passenger ’s frontal airbag
ON and OFF indicators” F3-16.
! Occupant detection system
The occupant detection system sensor is
installed under the seat upholstery and
monitors the physique and posture of the
front passenger. Using this information,
the occupant detection system determines
whether the front passenger ’s SRS frontal
airbag should be deployed or not.
If the front passenger ’s seat cushion is
wet, this may adversely affect the ability of
the system to determine deployment. If
the seat cushion is wet, the front passen-
ger should stop sitting on the front
passenger ’s seat. Wipe off liquid from
the seat immediately, let the seat dry
naturally and then check the SRS airbag
system warning light as follows.
Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
–CONTINUED –1-49

Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
!Operation
A) Driver ’s side
B) Passenger ’s side
1) SRS AIRBAGs deploy as soon as a collision occurs.
2) After deployment, SRS AIRBAGs start to deflate immediately so that the driver ’s vision is not
obstructed.
The SRS airbags 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 characteristic of item
(s) or person on the front passenger ’s seat
monitored by the front passenger ’s occu-
pant detection system 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 following sensors detect a predeter-
mined 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 passen-
ger ’s modules) instructing the module(s)
to inflate the SRS frontal airbag(s).
. the front sub sensors
. the impact sensors in the airbag control
module
On the driver ’s side, the SRS knee airbag
also inflates with the SRS frontal airbag.
1-54

the cabin 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.
In a moderate to severe side impact
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.
For Crosstrek models, in a rollover, SRS
curtain airbags on both sides of the
vehicle deploy between the occupant
and the side window and supplement the
seatbelt by reducing the impact to the
occupant ’s head.
In an offset frontal collision, SRS curtain
airbags on both sides of the vehicle
deploy between the occupant and the
side window and supplement the seatbelt
by reducing the impact to the occupant ’s
head and chest.
! Operation
The SRS side airbag and SRS curtain
airbag can function only when the ignition
switch is in the “ON”position.
The following airbags deploy indepen-
dently of each other since each has its
own impact sensor. .
Driver ’s SRS side airbag
. Front passenger ’s SRS side airbag
. SRS curtain airbag (right-hand side)
. SRS curtain airbag (left-hand side)
Therefore, they may not both deploy in the
same accident. Also, the SRS side airbag
and SRS curtain airbag deploys indepen-
dently of the driver ’s and front passen-
ger ’s SRS frontal airbags in the steering
wheel and instrument panel.
An impact sensor, which senses impact
force, is located in each of the following
locations.
. In the left and right front doors
. In the left and right center pillars
. In the left and right rear wheel houses
. Under the rear center seat
For Crosstrek models, a rollover sensor is
also located inside the airbag control
module.
If both of the following sensors together
sense an impact force above a predeter-
mined 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.
. the impact sensor that is located under the rear center seat
.
one of the center pillar impact sensors
or front door impact sensors
If both of the following sensors together
sense an impact force above a predeter-
mined level in a side collision, the control
module causes only the SRS curtain
airbag on the impacted side to inflate.
. the impact sensor that is located under
the rear center seat
. one of the rear wheel house impact
sensors
For Crosstrek models, if the rollover
sensor detects rollover of the vehicle, the
control module inflates the SRS curtain
airbags on both sides. At this time, the
driver ’
s and front passenger ’s seatbelt
pretensioners also operate at the same
time.
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
Seat, seatbelt and SRS airbags/*SRS airbag (Supplemental Restraint System airbag)
–CONTINUED –1-59