2017 SUBARU LEGACY cruise control

Foreword
Congratulations on choosing a SUBARU vehicle equipped with EyeSightTM.
EyeSight incorporates the latest driver assistance features available from
SUBARU, including such features as Adaptive Cruise Control, a Lead Vehicle Start
Alert and a Lane Departure and Lane Sway Warning, all of which are designed to
assist the driver in making decisions and increase driver comfort and
convenience. Initially, the operation and u se of the various EyeSight features may
be unfamiliar to you. That is why we urge you to read this manual carefully before
using EyeSight. We also recommend that you first take the time to test EyeSight in
order to experience its features for yourself so that you can become familiar with
their operation.
Please keep in mind that it is the responsibilit y of drivers to operate their vehicles
safely at all times. Drivers should always remain alert and should never become
complacent while operating their vehicles because of the presence of EyeSight.
EyeSight is never a substitute for acti ve driver involvement and it may not operate
optimally under all driving conditions.
This booklet is a supplement to the Owner’s Manual for your SUBARU vehicle and
contains a detailed description of EyeSight. It should be read in conjunction with
your Owner’s Manual so that you will gain a thorough understanding of the proper
operation of your vehicle.
The information, specifications and illustrations found in this booklet are those in
effect at the time of printing. FUJI HEAVY INDUSTRIES LTD. reserves the right to
change specificatio ns and designs at any time without prior notice and without
incurring any obligation to make the same or similar changes on vehicles
previously sold.
Please keep this booklet together with your Owner’s Manual and leave it in the
vehicle at the time of resale. The next owner will need the information it contains.
FUJI HEAVY INDUSTRIES LTD., TOKYO, JAPAN
is a registered trademark of FUJI HEAVY INDUSTRIES LTD.
© Copyright 2016 FUJI HEAVY INDUSTRIES LTD.

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EyeSight
About EyeSight .................................................................. 2
Pre-Collision Braking System........................................... 20
Adaptive Cruise Control ................................................... 32
Lane Keep Assist ............................................................. 54
Pre-Collision Throttle Management.................................. 62
Lane Departure Warning .................................................. 68
Lane Sway Warning ......................................................... 71
Lead Vehicle Start Alert ................................................... 74
Conventional Cruise Control ............................................ 75
List of buzzer sounds ....................................................... 85
EyeSight malfunction and temporary stop ....................... 86
Customizing functions ...................................................... 89
Message screen list ......................................................... 91
Troubleshooting ............................................................... 93

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About EyeSight
EyeSight is a driving support system that uses a range of functions to assist the driver in
making decisions in order to provide for more safe and comfortable driving and to reduce
driver fatigue. Making use of images created by stereo cameras specially designed by
SUBARU, EyeSight detects the vehicle in front, obstacles, traffic lanes and other items.
EyeSight
WARNING
Drivers are responsible for driving safely. Always comply with all
traffic rules and regulations regardless of the fact that your vehicle
is equipped with EyeSight. Always maintain a safe following dis-
tance behind the vehicle in front of you, pay attention to your sur-
roundings and the driving conditions, operate the brake pedal and
take other action as necessary in order to maintain a safe following
distance.
Never attempt to drive relying on EyeSight alone.
EyeSight is intended to assist the driver in making decisions in
order to reduce the chance of accidents or damage and lessen the
burden on the driver.
When a warning is activated, pay attention to what is in front of you
and to your surroundings, operate the brake pedal and take other
action as necessary.
This system is not designed to support driving in poor visibility or
in extreme weather conditions, or to protect against careless driv-
ing when the driver is not paying complete attention to the road
ahead. It also cannot prevent collisions from occurring in all driving
conditions.
There are limits to the EyeSight recognition performance and con-
trol performance. Be sure to read the instructions for each function
before using the system, and always use it properly. Improper use
may lead to failure of control performance, which could cause an
accident.
Refer to the following pages for each function:
x For the Pre-Collision Braking System, refer to page 20.
x For Adaptive Cruise Control, refer to page 32.
x For Pre-Collision Throttle Management, refer to page 62.
x For Conventional Cruise Control, refer to page 75.

About EyeSight
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The EyeSight system in your vehicle is designed for use in
countries in which traffic drives on the right-hand side of the road.
EyeSight for LHD vehicles such as yours is not designed for use in
countries in which vehicles are driven on the left-hand side of the
road.
xThe system may not operate correctly under the conditions listed below.
When these conditions occur, turn off the Pre-Collision Braking System.
Also, do not use Adaptive Cruise Control and Conventional Cruise Control.
- 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.

About EyeSight
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- When passing through the entrance or exit of a tunnel
- When the rear aspect of the vehicle in front is low, small or irregular (forexample a low bed trailer, etc.)
- When there is a fence, a wall or a shutter, etc. with a uniform pattern (a striped pattern, brick, etc.) or with no pattern in front
- When there is a wall or door made of glass or a mirror in front
- When driving at night or in a tunnel when there is a vehicle in front that does not have its taillights on
- When passing a banner or flag, low branches on a tree or thick/tall vege- tation
- On steep uphill or downhill grades
- When the stereo cameras are obstructed by a hand, etc. (If even one of the cameras is obstructed, the system does not operate properly.)
- When it is completely dark and no objects are detected
- When the area around the vehicle has a uniform color (such as when completely covered in snow, etc.)
- When the stereo camera lenses are dirty due to fingerprints, etc.
- When accurate detection is not possible due to reflections in the front windshield
- When the stereo cameras have become misaligned due to a strong impact
x Under the conditions listed below, EyeSight may temporarily stop operat-
ing. If this occurs, EyeSight will resume operating when the conditions
improve.
- The temperature inside the vehicle is high, such as after the vehicle was left in bright sunshine, or the temperature inside the vehicle is low, such
as after the vehicle was left in an extremely cold environment.
- Immediately after the engine starts
x When there is a malfunction in the EyeSight system, turn off the Pre-Colli-
sion Braking System (
Ÿ refer to page 30) and the Lane Departure Warning
(
Ÿ refer to page 70), and stop using the Adaptive Cruise Control and Con-
ventional Cruise Control. Contact a SUBARU dealer and have the system
inspected.
x When the Vehicle Dynamics Control warning light is illuminated, the Pre-
Collision Braking System may not operate properly. If the indicator light is
illuminated, turn off the Pre-Collision Braking System. Also, do not use the
Adaptive Cruise Control or Conventional Cruise Control.

About EyeSight
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The stereo cameras are installed at the posi-
tions of the front map lights.
Continued on next pageŸ
Handling of the Stereo Cameras
CAUTION
xA function is included that will automatic ally detect that the fronts of the
stereo cameras are dirty. However it is not 100% effective.
Under certain conditions, this function may fail to detect that the fronts of
the stereo cameras have become dirty. In addition, this function may not
detect that there is snow or ice on the windshield close to the stereo cam-
eras. In such conditions, be sure to keep the windshield clean at all times
(indicated by ). Otherwise the system may not operate correctly.
When this function detects that the fronts of the stereo cameras are dirty,
no EyeSight functions are activated except for Conventional Cruise
Control.
x The stereo camera is a precision component. Always observe the following
precautions especially when handling lenses.
- Never touch the stereo camera lenses, and do not attempt to wipe or clean the lenses. Doing so could damage or soil the lens, and lead to
improper system performance.
If you ever touch a lens for any reason, be sure to contact a SUBARU
dealer.
A
S01107
Stereo cameras

About EyeSight
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EyeSight includes the following functions.
■Pre-Collision Braking System
This function uses a following distance warning feature to warn the driver to take evasive
action when there is the possibility of a collision with a vehicle or obstacle in front of the
driver’s vehicle. If the driver still does not take evasive action, the brakes are quickly applied
automatically just before the collision in order to reduce the collision damage or, if possible,
prevent the collision.
Ÿ Refer to page 20.
■ Adaptive Cruise Control
This function maintains the set vehicle speed and when there is a vehicle in front in the
same traffic lane, it tracks the speed of the vehicle in front up to the maximum of the set
vehicle speed.
Ÿ Refer to page 32.
■Lane Keep Assist
This function helps suppress lane drifting by detecting lane markings (e.g., white lines) on
highways, etc. and by a ssisting steering operation.
Ÿ Refer to page 54.
■Pre-Collision Throttle Management
This function reduces accidental forward movement caused by the select lever being placed
in the wrong position or the accelerator pedal being accidently depressed, or depressed too
strongly.
Ÿ Refer to page 62.
■Lane Departure Warning
This function warns the driver when the vehicle is about to depart the traffic lane during driv-
ing.
Ÿ Refer to page 68.
■Lane Sway Warning
This system detects vehicle drifting caused by driver fatigue, failure to concentrate on the
road, inattention, strong crosswinds or other factors, and warns the driver.
Ÿ Refer to page 71.
EyeSight Functions

About EyeSight
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■Lead Vehicle Start Alert
This function notifies the driver when the vehicle stopped in front starts moving but the
driver’s vehicle remains stationary.
Ÿ Refer to page 74.
■Conventional Cruise Control
In this mode, the system maintains a constant vehicle speed. It does not track the vehicle in
front. This function can be used even when the stereo cameras have temporarily stopped
operating. (
Ÿ Refer to page 87.) (This function is used by switching from Adaptive Cruise
Control to Conventional Cruise Control.)
Ÿ Refer to page 75.
NOTE
EyeSight does not operate when the engine is not running.