2017 SUBARU OUTBACK Driving Assist Manual

Pre-Collision Braking System
22
ŸContinued from previous page
xWhen the stereo cameras’ field of view is obstructed (for example by a
canoe on the roof of the vehicle)
x When the rear aspect of
the vehicle in front is
low, small or irregular
(the system may recog-
nize another part of the
vehicle as its rear and
will determine operation
from that)
- When there is an empty truck or trailer
with no rear and/or
side panels on the
cargo bed
- With vehicles that have cargo protruding from their back ends
- With non-standard shaped vehicles (vehicle transporters or vehicles with a sidecar fitted, etc.)
- When the height of the vehicle is low, etc.
x When there is a wall, etc. in front of a stopped vehicle
x When there is another object near the vehicle
x When a vehicle, etc. has it’s side facing you.
x With vehicles that are backing up or with oncoming vehicles, etc.
x When the size and height of an obstacle is smaller than the limitations
of the stereo cameras’ recognition capability
- With small animals or children, etc.
- With pedestrians who are sitting or lying down
x When the detected
object is a fence or wall,
etc. with a uniform pat-
tern (a striped pattern or
brick pattern, etc.)
x When there is a wall or
door made of glass or a
mirror in front
x When the vehicle in front
suddenly swerves, accel-
erates, or decelerates.
x When a vehicle, motor-
cycle, bicycle or pedes-
trian suddenly cuts in
from the side or sud-
denly runs in front of you.
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23
xWhen you suddenly change lanes and your vehicle is immediately
behind an obstacle
x When there is a vehicle, motorcycle, bicycle or pedestrian in a location
close to your vehicle’s bumper
x When the speed difference between your vehicle and an obstacle is 4
MPH (5 km/h) or less (As braking is performed once the obstacle is in
close proximity to your vehicle, depending on the shape and size of the
obstacle, there may be some cases when the obstacle is outside the
range of the cameras’ field of view.)
x When driving on sharp curves, steep uphill grades or steep downhill
grades
x When driving on a bumpy or unpaved road
x When there are changes in brightness, such as at a tunnel entrance or
exit
x Do not test Pre-Collision Braking System on its own. It may operate
improperly and cause an accident.
x The system may not operate correctly under the conditions listed below.
When these conditions occur, turn off the Pre-Collision Braking System.
- The tire pressure is not correct.
*1
- The temporary spare tire is installed.*1
- Tires that are unevenly worn or tires with uneven wear patterns are installed.*1
- Tires that are the wrong size are installed.*1
- Flat tires have been fixed temporarily with a tire repair kit.
- The suspension has been modified (including a genuine SUBARU sus-pension that has been modified).
- Any object that disturbs the stereo cameras’ view is installed on the vehi- cle.
- The headlights are dirty or they have snow and ice or dirt on them. (Objects are not correctly illuminated and are difficult to detect.)
- The optical axes are not aligned correctly. (Objects are not correctly illu- minated and are difficult to detect.)
- The lights including headlights and fog lamps have been modified.
- Vehicle operation has become compromised due to an accident or mal- function.
- The brake system warning light is illuminated in red.
- A heavy cargo is loaded onto or inside the vehicle.
- The maximum number of occupants is exceeded.
- There is something wrong with the combination meter; such as when the lights do not illuminate, the beeps do not sound, the display is different
from when it is normal, etc.
*2
*1: The wheels and tires have functions that are critically important. Be
sure to use the correct ones. For details, refer to the Owner’s Manual
for your vehicle.
*2: For details about the combination meter, refer to the Owner’s Manual for your vehicle.

Pre-Collision Braking System
24
CAUTION
xIn the following situations, turn off the Pre-Collision Braking System. Other-
wise the Pre-Collision Braking System may activate unexpectedly.
- When the vehicle is being towed
- When loading the vehicle onto a carrier
- When a chassis dynamometer, free-rollers or similar equipment is used
- When a mechanic lifts up the vehicle, starts the engine and spins the wheels freely
- When passing hanging banners, flags or branches, or when thick/tall vege- tation is contacting the vehicle
- When using a drive-through car wash
x The Pre-Collision Braking System may activate in the following situations.
Therefore concentrate on safe driving.
- When passing through an automatic gate (opening and shutting)
- When driving close to the vehicle in front
- When driving in a location where the grade of the road changes rapidly
- When visibility is poor due to sand, smoke or water vapor in the air, or when the vehicle in front or oncoming traffic causes water, snow, dirt or other sub-
stances to obscure the view
- When passing through clouds of steam or smoke, etc.
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Pre-Collision Braking System
25
- When the exhaust gas emitted by the vehicle in front is clearly visible in coldweather, etc.
- When there is an obstacle on a curve or intersection
- When narrowly passing a vehicle or an object
- When stopping very close to a wall or a vehicle in front
x If there is cargo or installed
accessories, etc. that are pro-
truding over the edge of the
front bumper, the vehicle’s
length will increase and the
system may not be able to pre-
vent a collision.
x If the driver operates the brake pedal during automatic braking, the pedal may
feel stiff; however, this is normal. By depressing the brake pedal further you
can apply more braking force.
NOTE
Some unusual noises may be audible during automatic braking. This is
caused by the braking control and is normal.
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Pre-Collision Braking System
26
■Detection of pedestrians
The EyeSight system can also detect
pedestrians. The EyeSight system detects
pedestrians from their size, shape and
movement. The system detects a pedestrian
when the contour of the head and shoulders
are clear.
WARNING
The EyeSight system’s Pre-Collision Braking function also treats pedestrians
as obstacles. However, depending on the conditions, there may be cases
when the system cannot detect a pedestrian. In the following conditions, the
possibility that the system may not be able to detect a pedestrian as an object
is particularly high.
x When pedestrians are walking in a group
x When a pedestrian is next to a wall or other obstacle
x When a pedestrian is using an umbrella
x When a pedestrian is wearing clothes that are a similar color to the sur-
rounding environment
x When a pedestrian is carrying bulky luggage
x When a pedestrian is bent over, crouching down or lying down
x When a pedestrian is in a dark location
x When a pedestrian suddenly crosses in front of you from the side or sud-
denly runs in front of you
Approx
3 1/3 ft -
6 2/3 ft
(1-2 m)
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27
When there is an obstacle in the forward direction during driving, the system activates in the
following sequence in order to warn the driver, activate braking control, and active the brake
lights.
Following Distance Warning:
When the system determines that there is a risk of collision, a buzzer sounds repeated short
beeps and the indicators on the multi information display illuminate to warn the driver.
The Following Distance Warning operates when Adaptive Cruise Control is not set.
When the driver depresses the brake pedal to decelerate and achieves a suitable following
distance, the warning is canceled.
First Braking and Warning:
When the system determines that there is a high risk of collision with an obstacle in front, a
buzzer sounds repeated short beeps and the indicators on the multi information display illu-
minate to warn the driver, and braking control is activated and the engine output, in some
situations, is also controlled. If the system determines that the amount of evasive action
(braking, steering, etc.) taken by the driver has reduced the risk of collision, braking activa-
tion is canceled.
Secondary Braking and Warning:
If the system then determines that the risk of collision is extremely high, the buzzer changes
to a continuous beeping sound and stronger braking control is activated. If, despite any eva-
sive action taken by the driver, the system subsequently determines that a collision is
unavoidable, braking control and the engine output control are continued.
Even after the vehicle has stopped, depress the brake pedal.

Until the brake pedal is depressed, a mes-
sage appears and stays in the warning screen
area of the multi information display for
approximately 2 minutes. A single continuous
beep sounds while the message is displayed.
Pre-Collision Braking System operation
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Apply Brake To Hold
Position

Pre-Collision Braking System
28
NOTE
xAfter the vehicle has come to a stop through secondary braking, release
brake control in the following manner.
- Depress the brake pedal.
- Depress the accelerator pedal (except when the select lever is in the position).
- When the select lever is in the position
x After stopping with secondary braking, in the following cases, brake control
will be released and the electronic parking brake will operate.
(For details about how to release the electronic parking brake, refer to the
Owner’s Manual for your vehicle.)
- When approximately 2 minutes have elapsed since stopping and not depressing the brake pedal
- When any door (except the rear gate/trunk) was opened
- When EyeSight is temporarily stopped
- When there is a malfunction in the EyeSight system
& warning Secondary braking
& warning
First braking
Possible collision area Highly possible
collision areaExtremely highly possible
collision areaObstacle
First
braking
No brake controlRepeated
short beeps
Repeated
short beeps
Strong
Secondary
braking Operating
system
Indication on the multi
information display
Continuous
beep
Moderate
Strength of
Automatic Braking
Warning
buzzer type
Following distance
warning
Following
distance
warning
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P

Pre-Collision Braking System
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When the Pre-Collision Braking System is activated (when the system determines that there
is a high risk of collision with an obstacle in front), if the driver depresses the brake pedal,
the system determines that this is emergency braking and activates braking assist automat-
ically.x
Neither first braking or secondary braking will operate in the following
cases.
- When the vehicle is traveling at approximately 1 MPH (1 km/h) or less (When the select lever is in the position and your vehicle speed is
approximately 2 MPH (4 km/h) or less) or 100 MPH (160 km/h) or more
- When Vehicle Dynamics Control is active
x If the system detects the brake lights of the vehicle in front, your vehicle
will start decelerating earlier than if it does not.
x There are some cases where the first braking is applied for a longer period
of time. One of the reasons for this is due to a large speed difference with
an obstacle in front. In those cases, stronger or weaker braking control
may be activated.
Pre-Collision Braking Assist operation
CAUTION
If the driver depresses the brake pedal manually while following distance
warning is activated, the Pre-Collision Braking Assist will not work. (The vehi-
cle decelerates with the normal braking force operated by the driver.)
NOTE
xPre-Collision Braking Assist function does not operate when the vehicle
speed is approximately 7 MPH (10 km/h) or less or 100 MPH (160 km/h) or
more.
x For information about the braking assist function, refer to the Owner’s
Manual for your vehicle.
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