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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-
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 sonar sensors or 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 sonar sensors or the rear bum-
per 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 guaran-
tee 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
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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 sonar sensors or the rear
bumper near the sonar sensors is
exposed to heavy rain or a signifi-
cant amount of water
–Fog, snow or sandstorm, etc.
–Air is moving rapidly such as
when a strong wind is blowing
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 anaccident
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
–CONTINUED–
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–When reversing on an uneven
road
.In circumstances such as the follow-
ing, it may not be possible to avoid a
collision even when the system oper-
ates normally.
–Roads are slippery.
–The tire air pressure is not cor-
rect.
–The tires have become worn.
–Tire chains are installed.
–Tires which are not the desig-
nated size are installed.
–Emergency repairs were per-
formed using a puncture repair kit.
–The suspension was modified.
–Vehicle driving is unstable due to
accident or malfunction.–The brake warning light is illumi-
nated.
&Reverse Automatic Braking
System operationWhen 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
(color LCD). Also, warning sounds will
activate in 3 levels to warn the driver of a
potential collision.
While the RAB is operating, a warning
message is displayed on the multi-function
display (color LCD) and the combination
meter display (color LCD).
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Guideline of detecting range
Alert level Range of detected object* Distance indicator Alarm pattern
Long proximity (ob-
ject detected)35 inches (90 cm) or more Green No warning sound
Medium proximity
alert (approaching the
object)28 to 35 inches (70 to 90
cm)Yellow + Green Short beeps
Close proximity alert
(approaching closer
to the object)20 to 28 inches (50 to 70
cm)Orange + Yellow +
GreenRapid short beeps
Closest proximity
alert (too close to the
object)20 inches (50 cm) or lessRed + Orange +
Yellow + GreenContinuous beep
*: Range of detection may vary depending on the environmental condition.
!Obstacle detected and Alert levelLong proximity alert (object detected)
1) Green: 35 inches (90 cm) or more
–CONTINUED–
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Medium and close proximity alert (ap-
proaching the object and approaching
closer to the object)
1) Orange: 20 to 28 inches (50 to 70 cm)
2) Yellow: 28 to 35 inches (70 to 90 cm)
Closest proximity alert (too close to the
object)
1) Red: 20 inches (50 cm) or lessWhen an object is detected in the rever-
sing direction, the range of detected object
will be shown on the multi-function display
(color LCD).
A warning alarm will sound and, depend-
ing on the speed, either torque control to
generate engine braking or automatic
braking will be applied.!Object close behind warning
Automatic braking warningIf the vehicle continues to go in reverse,
the system may determine the risk of
collision with the object. In this case, short
warning beeps or continuous warning
beeps will sound and either strong auto-
matic braking or torque control will be
applied to prevent collision.
At this time, a warning message is also
displayed on the combination meter dis-
play (color LCD).
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!When the vehicle is being stopped
by the systemDepress brake pedal warningMake sure to depress the brake pedal
once the vehicle has been stopped by
automatic braking. Until the brake pedal is
depressed, a message will be displayed
on the multi-function display (color LCD)
and the continuous beep will remain
sounding.
At this time, a warning message is also
displayed on the combination meter dis-
play (color LCD).!After the vehicle is stopped by the
system
1) Reverse Automatic Braking system OFF
indicatorAfter the brake pedal is depressed, the
Reverse Automatic Braking system OFF
indicator will illuminate and the system will
stop operating temporarily. The Reverse
Automatic Braking system OFF indicator
will turn off when the select lever is shifted
to a position other than the“R”position.
The system will operate again the next
time the select lever is shifted to“R”
position.
NOTE.After the vehicle has been stopped
by the Reverse Automatic Braking
system, brake control is released and
the electronic parking brake operates
in the following cases. For details about
releasing the parking brake, refer to
“Electronic parking brake (models with
electronic parking brake system)”F7-
43.
–2 minutes pass after the vehicle
is stopped
–Any door is opened
–The EyeSight system malfunc-
tions
–The EyeSight system stops tem-
porarily
–The Reverse Automatic Braking
system stops temporarily
.The Reverse Automatic Braking sys-
tem may stop operating temporarily in
the following cases and the Reverse
Automatic Braking system OFF indica-
tor will illuminate.
–Ice, snow or mud is adhered to
the sonar sensors or the rear bum-
per near the sonar sensor
–Objects are too close to the rear
bumper when the select lever is set
to the“R”position
–The system detects sounds of a
–CONTINUED–
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similar frequency to the RAB sonar.
&Canceling the Reverse Auto-
matic Braking system opera-
tionThe Reverse Automatic Braking system
can be temporarily cancelled by any of the
following operations.
.depressing the brake pedal
*
.depressing the accelerator pedal
*
.depressing and holding the accelerator
pedal (in this case, limited acceleration will
be canceled and the vehicle will continue
reversing.)
.shifting the select lever to a position
other than the“R”position
*: while the vehicle is stopped by the
automatic brakingNOTEThe system will be cancelled if the
object is no longer detected.
&Reverse Automatic Braking
system ON/OFF settingWhile the select lever is shifted to the“R”
position, the below functions of the Re-
verse Automatic Braking system can be
set by operating the multi-function display
(color LCD).
For details about how to operate the multi-
function display (color LCD), refer to
“Basic operation”F3-46.1) ON/OFF setting of Reverse Automatic
Braking
2) ON/OFF setting of the object detection
warning soundWhen the Reverse Automatic Braking
system is turned off, the RAB OFF
indicator will illuminate.
NOTEThe Reverse Automatic Braking sys-
tem settings that are changed by the
multi-function display (color LCD) will
be restored to default (ON setting) the
next time the select lever is shifted to
“R”position.
Also, the following settings can be chan-
ged by operating the combination meter
display (color LCD).
.Warning volume
.Sonar audible alarm ON/OFF
For details, refer to“RAB (models with the
EyeSight system)”F3-43.
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&RAB warning indicatorIf the Reverse Automatic Braking System
malfunctions, the above indicator illumi-
nates on the combination meter. Contact
the nearest SUBARU dealer for details.
&Handling of the sonar sen-
sorsThe 4 sonar sensors are located in the rear
bumper. To ensure the proper operation of
the Reverse Automatic Braking system,
observe the following precautions..Do not affix any stickers or other items
on the sonar sensors or the bumper
surface near the sonar sensors.
.Always keep the sonar sensors and 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 malfunc-tion 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.
NOTEIf 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.
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