sensor SUBARU FORESTER 2017 SJ / 4.G Service Manual

operation and the BSD/RCTA warning
indicator will disappear. However, if the
BSD/RCTA warning indicator has ap-
peared for a prolonged time, have the
system inspected at a SUBARU dealer
as soon as possible.
.The detectability of the radar sen-
sors is restricted. The BSD/RCTA de-
tection may be impaired and the sys-
tem may not operate properly under the
following conditions.
–When the rear bumper around
the radar sensors is distorted
– When ice, snow or mud adheres
to the rear bumper surface around
the radar sensors
– When stickers, etc. are affixed on
the areas of the radar sensors on
the rear bumper
– During adverse weather condi-
tions such as rain, snow or fog
– When driving on wet roads such
as snow-covered roads and
through puddles
. The radar sensors may not detect or
may have difficulty detecting the fol-
lowing.
–Small motorcycles, bicycles, pe-
destrians, stationary objects on the
road or road side, etc.
– Vehicles with body shapes that
the radar may not reflect (vehicles with a low body height such as
sports cars or a trailer with no
cargo)
–
Vehicles that are not approach-
ing your vehicle even though they
are in the detection area (either on a
neighboring lane to the rear or
beside your vehicle when rever-
sing) (The system determines the
presence of approaching vehicles
based on data detected by the radar
sensors.)
– Vehicles traveling at significantly
different speeds
– Vehicles driving in parallel at
almost the same speed as your
vehicle for a prolonged time
– Oncoming vehicles
– Vehicles in a lane beyond the
neighboring lane
– Vehicles travelling at a signifi-
cantly lower speed that you are
trying to overtake
. On a road with extremely narrow
lanes, the system may detect vehicles
driving in a lane next to the neighbor-
ing lane.& BSD/RCTA approach indica-
tor light/warning buzzer
While the BSD/RCTA is active, the follow-
ing item(s) will operate to alert the driver.
. The BSD/RCTA approach indicator
light (when there are vehicles in the
neighboring lanes)
. The BSD/RCTA approach indicator
light and warning buzzer (when a vehicle
is approaching from the left or right side
while reversing)
! BSD/RCTA approach indicator light
BSD/RCTA approach indicator light
It is mounted in each side of the outside
mirrors and will illuminate when a vehicle
approaching from behind is detected. If an
indicator light is illuminated and the turn
Starting and operating/BSD/RCTA
–CONTINUED –7-61

.The BSD/RCTA approach indicator
light may illuminate when driving close to
solid objects on the road or road side
(such as guardrails, tunnels and side-
walls).
. The BSD/RCTA approach indicator
light may flash when turning at an inter-
section in urban areas or a multilane
intersection.
. The BSD/RCTA approach indicator
light may flash and the warning buzzer
may sound if a building or a wall exists in
the reversing direction.
. In the following cases, the system may
detect a vehicle driving two lanes away
from your vehicle.
–When you are driving on the near
side of its lane from the corresponding
vehicle –
When the vehicle driving two lanes
away is driving on the near side of its
lane from your vehicle
& BSD/RCTA warning indicator
! System temporary stop indicator
System temporary stop indicator
This indicator appears when the system is
used under the following conditions.
.Extremely high or low temperatures
. When abnormal voltage exists for the
vehicle battery
. When the radar sensor is significantly
misaligned
Once the above conditions are corrected,
the system will recover from the temporary
stop condition and the indicator will disappear. If the indicator remains dis-
played for a prolonged time, have the
system inspected at a SUBARU dealer.
!
System temporary stop indicator
due to reduced radar sensitivity
System temporary stop indicator due to
reduced radar sensitivity
This indicator appears when the detect-
ability of the radar sensors is reduced.
Once the condition is corrected, the
system will recover from the temporary
stop condition and the indicator will
disappear. If the indicator remains dis-
played for a prolonged time, have the
system inspected at a SUBARU dealer.
Starting and operating/BSD/RCTA
–CONTINUED –7-63

vehicle
–When using a chassis dynam-
ometer or free roller device, etc.
– When running the engine and
makingthewheelsrotatewhile
lifting up the vehicle
. If the ignition switch is turned to the
“ LOCK ”/“ OFF ”position, the last known
status of the system is maintained. For
example, if the ignition switch is turned
to the “LOCK ”/“ OFF ”position with the
BSD/RCTA deactivated, the BSD/RCTA
will remain deactivated the next time
the ignition switch is turned to the
“ ON ”position.
. If the vehicle battery is disconnected
due to situations such as battery
terminal or fuse replacement, after the
battery is reconnected, the BSD/RCTA
will be activated.
& Certification for the BSD/
RCTA
. U.S.-spec. models
FCC ID: OAYSRR2A
CAUTION
FCC WARNING
Changes or modifications not ex-
pressly approved by the party re- sponsible for compliance could void
the user
’s authority to operate the
equipment.
This device complies with part 15 of the
FCC Rules. Operation is subject to the
following two conditions: (1) This device
may not cause harmful interference, and
(2) this device must accept any interfer-
ence received, including interference that
may cause undesired operation.
. Canada-spec. models
This device complies with Industry
Canada licence-exempt RSS standard
(s). Operation is subject to the following
two conditions: (1) this device may not
cause interference, and (2) this device
must accept any interference, including
interference that may cause undesired
operation of the device.
Le présent appareil est conforme aux
CNR d ’Industrie Canada applicables aux
appareils radio exempts de licence. L ’ex-
ploitation est autorisée aux deux condi-
tions suivantes: (1) l ’appareil ne doit pas
produire de brouillage, et (2) l ’utilisateur
de l ’appareil doit accepter tout brouillage
radioélectrique subi, même si le brouillage
est susceptible d ’en compromettre le
fonctionnement.
& Handling of radar sensors
Radar sensors
The radar sensors, one on each side of
the vehicle, are mounted inside the rear
bumper.
Starting and operating/BSD/RCTA
–CONTINUED –7-65

Starting and operating/Reverse Automatic Braking System
NOTE
.To ensure correct operation of the
BSD/RCTA, observe the following pre-
cautions.
–Always keep the bumper surface
near the radar sensors clean.
– Do not affix any stickers or other
items on the bumper surface near
the radar sensors.
– Do not modify the bumper near
the radar sensors.
– Do not paint the bumper near the
radar sensors.
– Do not expose the bumper near
the radar sensors to strong im-
pacts. If a sensor becomes misa-
ligned, a system malfunction may
occur, including the inability to
detect vehicles entering the detec-
tion areas. If any strong shock is
applied to the bumper, be sure to
contact your SUBARU dealer for
inspection.
– Do not disassemble the radar
sensors.
. If the radar sensors require repair or
replacement, or the bumper area
around the radar sensors requires
repair, paintwork or replacement, con-
tact your SUBARU dealer for assis-
tance.Reverse Automatic Braking
System (if equipped)
Reverse Automatic Braking is a system
designed to help avoid collisions or reduce
collision damage when reversing the
vehicle. If a wall or an obstacle is detected
in the reversing direction, the system will
notify the driver with a warning sound and
may activate the vehicle ’s brakes auto-
matically.
WARNING
. Reverse Automatic Braking is not
a system intended to replace the
driver ’s responsibility to check
surrounding areas for vehicles or
obstacles to avoid a collision.
. The driver is responsible for
driving safely. Always be sure to
check the surroundings visually
when reversing the vehicle.
. Since the system operation has
various limitations, the warning
sound or automatic braking may
be delayed or may not operate at
allevenwhenanobstacleis
present in the reversing direc-
tion.
. The system is not designed to detect people (including chil-
dren), animals or other moving
objects.
. Depending on the vehicle condi-
tion or the surrounding environ-
ment, the sonar sensor ’s ability
to detect objects may become
unstable.
NOTE
The Reverse Automatic Braking Sys-
tem records and stores the following
data when automatic braking operates.
It does not record conversations, per-
sonal information or other audio data.
. Distance from the object
. Vehicle speed
. Accelerator pedal operation status
. Brake pedal operation status
. Select lever position
. Outside temperature
. The sensitivity setting of the sonar
sensors
SUBARU and third parties con-
tracted by SUBARU may acquire
and use the recorded data for the
purpose of vehicle research and
development. SUBARU and third
parties contracted by SUBARU will
not disclose or provide the acquired
7-66

data to any other third party except
under the following conditions.– The vehicle owner has given his/
her consent.
– The disclosure/provision is
based on a court order or other
legally enforceable request.
– Data that has been modified so
that the user and vehicle cannot be
identified is provided to a research
institution for statistical processing
or similar purposes.
& Reverse Automatic Braking
System overview
The system detects objects using sonar
sensors installed in the rear bumper. If the
system determines a possible collision
with an object in the reversing direction,
automatic deceleration will be activated.
Also, beeping sounds will activate. If the
vehicle is further reversed, automatic hard
braking will be applied and a continuous
beeping sound will activate. !
Detecting range
1) Detecting range (width): Approximately 6
in (15 cm) outside of the vehicle width
2) Range that the system cannot detect: Approximately 20 in (50 cm) behind the
rear of the vehicle
3) Detecting range (length): Approximately 5 ft (1.5 m) from the rear of the vehicle
WARNING
If your vehicle is trapped on a rail-
road crossing and you are trying to
escape by reversing through the
crossing gate, the system may re-
cognize the crossing gate as an
obstacle and the brakes may acti-
vate. In this case, remain calm and
either continue to depress the accel-
erator pedal or cancel the system. To cancel the system, refer to
“Can-
celing the Reverse Automatic Brak-
ing system operation ”F 7-72.
& Operating conditions
The Reverse Automatic Braking system
will operate when all of the following
conditions are met.
. The ignition switch is in the “ON ”
position
. The EyeSight warning indicator is off
. The Reverse Automatic Braking fail
indicator is off
. HALT (Reverse Automatic Braking
system OFF) indicator is off
. The Reverse Automatic Braking sys-
tem is set to on
. The select lever is in the “R ”position
. The vehicle speed is between 1 to 9
mph (1.5 to 15 km/h)
NOTE
. When the Reverse Automatic Brak-
ing fail indicator is illuminated, the
Reverse Automatic Braking system
cannot be operated. Promptly contact
a SUBARU dealer to have the system
inspected.
. When the Reverse Automatic Brak-
ing system OFF indicator is illumi-
Starting and operating/Reverse Automatic Braking System
–CONTINUED –7-67

Starting and operating/Reverse Automatic Braking System
nated, the Reverse Automatic Braking
system cannot be operated.
.In the following cases, the system
may not be able to properly detect an
obstacle. Promptly contact a SUBARU
dealer to have the system inspected.
–A sticker, paint, or a chemical is
applied to the rear bumper near the
sonar sensor
– The rear bumper is modified
– The rear bumper has been re-
moved and reattached
– The ground clearance is changed
due to the vehicle ’s loading condi-
tion or modification
– Ice, snow or mud is adhered to
the rear bumper near the sonar
sensor
– The rear bumper is exposed to
strong impact, or the rear bumper is
deformed
. On a steep hill, the system ’s auto-
matic braking ability will be reduced.
. The system is designed to avoid
collisions by automatic hard braking
when the vehicle ’s reversing speed is
less than approximately 3 mph (5
km/h). However, the system does not
guarantee that the vehicle will be able
to avoid collisions in any situation.
. If the vehicle is reversed at an
extremely slow speed, the driver ’s operation may be prioritized. In this
case, automatic braking will not oper-
ate.
.
The system may not be able to
detect the following objects
–Sharp or thin objects such as
poles, fences and ropes which may
not reflect the sound wave emitted
from the sonar sensor
– Objects that are too close to the
rear bumper when the select lever is
set to the “R ” position
– Objects with a surface which may
not reflect the sound wave emitted
from the sonar sensor such as a
chain link fence.
. Objects the system is not designed
to detect
–Pedestrians
– Moving objects including moving
vehicles
– Objects which absorb sound
waves such as cloth or snow
– Objects whose surface has a
diagonal angle
– Objects that are low to the
ground such as parking blocks
– Objects that are high above the
ground such as objects hanging
from above
. The system may not be able to
properly detect objects or may cause a system malfunction when the follow-
ing conditions exist
High frequency sound from other
sources are nearby– Horn sound from another vehicle
– Engine sound from other vehi-
cles
– Sound of an air brake
– Vehicle detection equipment or a
sonar from another vehicle
– A sound wave with a frequency
similar to the vehicle ’s system is
transmitted nearby
– A
vehicle equipped with the same
system is reversing toward your
reversing direction
Weather conditions – Extremely high or extremely low
temperatures in which the area near
the sonar sensor becomes too hot
or too cold to operate
– The rear bumper near the sonar
sensors is exposed to heavy rain or
a significant amount of water
– Fog, snow or sandstorm, etc.
– Air is moving rapidly such as
when a strong wind is blowing
7-68

Parts attached to the rear bumper
near the sonar sensor– Commercial electronic parts (fog
light, fender pole, radio antenna) or
commercial attachment parts (trai-
ler hitch, bicycle carrier, bumper
guard) are attached
– Parts that emit high frequency
sound, such as a horn or speaker,
are attached
Vehicle conditions – The vehicle is significantly in-
clined
– The ground clearance is signifi-
cantly reduced due to the vehicle ’s
loading condition, etc.
– When the sonar sensor is mis-
aligned due to a collision or an
accident
Surrounding environment – A cloth banner, flag, hanging
branch or railroad crossing bars
are present in the reversing direc-
tion
– When reversing on a gravel or
grassy area
– When reversing in an area where
objects or walls are adjacent to the
vehicle such as narrow tunnels,
narrow bridges, narrow roads or narrow garages
–
Wheel tracks or a hole is present
in the ground of the reversing
direction
– When reversing over a drainage
cover (grate cover)
– The path of the reversing direc-
tion is inclined such as on a steep
uphill
– A curb is present in the reversing
direction
– When reversing downhill
& Reverse Automatic Braking
System operation
When the Reverse Automatic Braking
System is in operation, the range between
the vehicle and the detected object will be
indicated on the multi function display.
Also, warning sounds will activate in 3
levels to warn the driver of a potential
collision.
Starting and operating/Reverse Automatic Braking System
–CONTINUED –7-69

select lever is shifted to“R”position.
& RAB warning indicator
If the Reverse Automatic Braking System
malfunctions, the above indicator illumi-
nates in the combination meter. Contact
the nearest SUBARU dealer for details.
&Handling of the sonar sen-
sors
The 4 sonar sensors are located in the
rear bumper. To ensure the proper opera-
tion of the Reverse Automatic Braking
system, observe the following precau-
tions.
. Do not affix any stickers or other items
on the bumper surface near the sonar
sensors.
. Always keep the rear bumper surface
near the sonar sensors clean.
. Do not modify the rear bumper.
. Do not paint the bumper near the sonar
sensors.
. Do not apply strong impacts to the rear
bumper near the sonar sensors. If a
sensor becomes misaligned, a system malfunction may occur, including inability
to detect objects in the reversing direction.
If any strong impact is applied to the rear
bumper, contact a SUBARU dealer to
have the system inspected.
.
Do not disassemble the sonar sensors.
NOTE
If the sonar sensors require repair or
replacement, or if the area of the rear
bumper near the sonar sensors re-
quires repair, paintwork or replace-
ment, contact your SUBARU dealer
for assistance.
Starting and operating/Reverse Automatic Braking System7-73

In case of emergency/If you park your vehicle in case of an emergency
If you park your vehicle in
case of an emergency
1) Models with multi function display
2) Models without multi function display
The hazard warning flasher should beused in day or night to warn other drivers
when you have to park your vehicle under
emergency conditions.
Avoid stopping on the road. It is best to
safely pull off the road if a problem occurs.
The hazard warning flasher can be acti-
vated regardless of the ignition switch
position.
Turn on the hazard warning by pushing
the hazard warning flasher switch. Turn it
off by pushing the switch again.
NOTE
When the hazard warning flasher is on,
the turn signals do not work.
Temporary spare tire
WARNING
.
Never tow a trailer when the
temporary spare tire is used.
The temporary spare tire is not
designed to sustain the towing
load. Use of the temporary spare
tire when towing can result in
failure of the spare tire and/or
less stability of the vehicle and
may lead to an accident.
. When a spare tire is mounted or a
wheel rim is replaced without the
original pressure sensor/trans-
mitter being transferred, the low
tire pressure warning light will
illuminate steadily after blinking
for approximately one minute.
This indicates the tire pressure
monitoring system (TPMS) is un-
able to monitor all four road
wheels. Contact your SUBARU
dealer as soon as possible for
tire and sensor replacement and/
or system resetting.
9-2

In case of emergency/Flat tires
17. When storing the spare tire after
repairing a flat tire, be sure to place the
spacer in the manner shown in the
illustration, and then tighten the bolt in
the rear side of the bracket.
WARNING
Never place a tire or tire changing
tools in the passenger compartment
after changing wheels. In a sudden
stop or collision, loose equipment
could strike occupants and cause
injury. Store the tire and all tools in
the proper place.
&Tire pressure monitoring
system (TPMS) (U.S.-spec.
models)
Low tire pressure warning light (type A)
Low tire pressure warning light (type B)
The tire pressure monitoring system pro-
vides the driver with a warning message
by sending a signal from a sensor that is
installed in each wheel when a tire
pressure is severely low relative to the
selected TPMS mode.
The tire pressure monitoring system will
activate only when the vehicle is driven at
speeds above 25 mph (40 km/h). Also,
this system may not react immediately to a
sudden drop in tire pressure (for example,
a blow-out caused by running over a
sharp object).
WARNING
If the low tire pressure warning light
illuminates while driving, never
brake suddenly and keep driving
straight ahead while gradually redu-
cing speed. Then slowly pull off the
road to a safe place. Otherwise an
accident involving serious vehicle
damage and serious personal injury
could occur.
Check the pressure for all four tires
and adjust the pressure to the COLD
tire pressure shown on the vehicle
placard on the door pillar on the
driver ’s side. If this light still illumi-
nates while driving after adjusting
the tire pressure, a tire may have
9-8