light SUBARU IMPREZA 2016 5.G Driving Assist Manual

Pre-Collision Braking System
22
Ÿ Continued from previous page
- When the detected object is something other than a vehicle, motorcycle,
bicycle or pedestrian• A domestic animal or other animal (a dog or deer, etc.)
• A guardrail, telephone pole, tree, fence or wall, etc.
- Even if the obstacle is a motorcycle, bicycle or pedestrian, depending on
the brightness of the surroundings as well as the relative movement, and
aspect or angle of the object, there may be cases when the system can-
not detect it.
- When the system determines that operation by the driver (based on accelerator pedal operation, braking, steering wheel angle, etc.) is
intended as evasive action
- Vehicle maintenance status (brake systems, tire wear, tire pressure, whether a temporary spare tire is being used, etc.)
- When towing a trailer or another vehicle, etc.
- When the brakes are cold due to outside temperature being low or just after starting the engine.
- When the brakes are overheated on downhill grades (braking effective- ness is reduced)
- When driving in rain or after washing the vehicle (the brakes are wet and
braking effectiveness is reduced)
- Recognition conditions of the stereo cameras In particular, the function may be unable to stop the vehicle or may not
activate in the following cases.
• Bad weather (for example heavy rain, a blizzard or thick fog)
• 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,
dust or other substances to obscure the view through the windshield
• When driving at night or in a tunnel without the headlights on
• When driving at night or in a tunnel when there is a vehicle in front that does not have its taillights on
• When approaching a motorcycle, bicycle or pedestrian at night
• When ambient light is poor in the evening or early morning
• When a vehicle, motorcycle, bicycle or pedestrian is outside the area illuminated by the headlights
• When affected by strong light from the front (for example, sunlight at
dawn, sunset or headlight beams, etc.)
• When there is snow, frost, dirt or dust on the windshield or it is clouded
• When fluid has not been fully wiped off the windshield during or after washer use
• When the target cannot be correctly recognized because the stereo cameras’ view is obstructed by water droplets from rain or the window
washer, or by the wiper blades.
• When the stereo cameras’ field of view is obstructed (for example by a canoe on the roof of the vehicle)

Pre-Collision Braking System
24
Ÿ Continued from previous page
• When driving on sharp curves, steep uphill grades or steep downhill
grades
• When driving on a bumpy or unpaved road
• When there are changes in brightness, such as at a tunnel entrance or exit
• Do not test Pre-Collision Braking System on its own. It may operate
improperly and cause an accident.
• 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 on any wheel.*1
- Tires that are worn or have large variations in wear conditions are installed.*1
- Tires other than those of the designated 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
28
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.
Vehicle restart:
After the vehicle is completely stopped by the automatic braking system, brake will be
slightly released 2 seconds after vehicle stop. After sounding a short tone “beep, beep,
ding”, the vehicle starts creeping.
Pre-Collision Braking System operation

Pre-Collision Braking System
30
Ÿ Continued from previous page
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. •
Neither first braking nor secondary braking will operate in the following
cases.
- When your vehicle speed is approximately 1 MPH (1 km/h) or less (When the selector 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 VDC is active
• If the system detects the brake lights of the vehicle in front, your vehicle
will start decelerating earlier than if it does not.
• 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
vehicle decelerates with the normal braking force operated by the driver.)
NOTE
•Pre-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.
• For information about the braking assist function, refer to the Owner’s
Manual for your vehicle.
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Pre-Collision Braking System
31
Pressing and holding the Pre-Collision Braking System OFF switch for approximately 2 sec-
onds (or longer) turns off the Pre-Collision Braking System (including Pre-Collision Brake
Assist). When 1 short beep sound emits, this control is turned off and the Pre-Collision
Braking System OFF indicator light on the instrument panel illuminates.
To turn the control back on, press and hold the Pre-Collision Braking System OFF switch for
approximately 2 seconds or longer again. When this control is turned on, the Pre-Collision
Braking System OFF indicator light turns off.
Turning off the Pre-Collision Braking System
NOTE
•When the Pre-Collision Braking System is turned off, the Pre-Collision
Throttle Management Control function is also turned off.
• Even when the Pre-Collision Braking System is turned off, if the ignition
switch is turned off and the engine is then restarted, the Pre-Collision
Braking System will be turned on. The system default setting when the
vehicle is restarted in “ON”.
S02020

Pre-Collision Braking System
32
■Pre-Collision Braking System OFF indicator light
This indicator light illuminates when the igni-
tion switch is turned to the ON position, and
remains illuminated for approximately 7 sec-
onds after the engine starts. It turns on when
the Pre-Collision Braking System is turned off.
It also illuminates under the following
conditions.
• When the EyeSight system has a
malfunction
Ÿ Refer to page 79.
• When the EyeSight system has stopped
temporarily
Ÿ Refer to page 80.
NOTE
When the Pre-Collision Braking System OFF indicator light is turned on, the
Pre-Collision Braking System (including the Pre-Collision Braking Assist
function) does not operate.
S01331

Adaptive Cruise Control
33
Adaptive Cruise Control
Adaptive Cruise Control is a driving support system intended to allow more comfortable
driving on expressways, freeways and interstate highways. The vehicle in front in the same
traffic lane is detected by means of the stereo cameras, and your vehicle tracks the vehicle
in front (up to the maximum speed of the set vehicle speed) while automatically maintaining
a following distance that corresponds to the speed of the vehicle in front. The system uses
the vehicle’s conventional braking system to stop your vehicle when the vehicle in front is
stopped. The vehicle is capable of being controlled at a speed between approximately 0 and
90 MPH (145 km/h). Please remember that you should not exceed posted speed limits.Continued on next page Ÿ
WARNING
•This system does not provide the driver with an automatic driving function
that handles all traffic conditions.
• Do not rely excessively on Adaptive Cruise Control. This system is not
intended to assist in driving when the driver is not paying full attention to
what is ahead of him/her due to distractions or a lack of concentration
while driving, or under conditions of poor visibility. It is not intended to pre-
vent rear-end collisions.
Strive for safe driving at all times. Always maintain a safe following dis-
tance behind the vehicle in front of you, pay attention to your surroundings
and the driving conditions, and operate the brake pedal and take other
action as necessary.
• Set the set vehicle speed within a range that is appropriate to the road con-
ditions and surrounding environment.
• Before using the system, perform a daily inspection and verify that there
are no malfunctions of the tires or brakes.
Ÿ Refer to the separate “Warranty and Maintenance Booklet”.
• The system may not operate correctly under the conditions listed below.
When these conditions occur, do not use Adaptive Cruise Control.
- The tire pressure is not correct.
*1
- The temporary spare tire is installed on any wheel.*1
- Tires that are worn or have large variations in wear conditions are installed.*1
- Tires other than those of the designated 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.

Adaptive Cruise Control
35
Continued on next page Ÿ
- When water droplets from rain or the window washer, or dirt has not
been fully wiped off the windshield
It may not be possible to detect the vehicle in front, making correct
control impossible.
- When the stereo cameras’ field of view is obstructed (for example by a canoe on the roof of the vehicle)
• The stereo cameras may have difficulty detecting the following objects or
conditions. Operate the brake pedal and take other actions as necessary.
- Vehicles at significantly different speeds (vehicles driving slowly, stopped or oncoming vehicles, etc.)
- Vehicles cutting into your lane
- Motorcycles, bicycles, pedestrians and animals, etc.
- When light is poor in the evening or early morning
- When driving at night or in a tunnel without the headlights on
- When driving at night or in a tunnel when there is a vehicle in front that
does not have its taillights on
- When affected by strong light from the front (sunlight or headlight high
beams, etc.)
- Vehicles in front that have a rear aspect that is low,
small or irregular (the sys-
tem may recognize
another part of the vehicle
and will determine opera-
tion from that)• An empty truck or trailer
that has no cargo in the
cargo bed being affected
by wind
• Vehicles that have cargo
protruding from their
back ends
• Non-standard shaped ve-
hicles (vehicle transport-
ers or vehicles with a sidecar fitted, etc.)
• Vehicles that are low
- Objects that are located close to the bumper of your vehicle
• When you do not want to use Adaptive Cruise Control, be sure to turn the
(CRUISE) switch off. If the switch is left on, cruise control may be
accidentally engaged, possibly resulting in an accident.
• Before using Adaptive Cruise Control, be sure to fully verify the safety of
the vehicle occupants and the area around the vehicle. Never operate the
cruise control from outside the vehicle.
S02133

Adaptive Cruise Control
42
•If your vehicle no longer detects the vehicle
in front
The vehicle gradually accelerates back to
the set target vehicle speed and will drive at
that constant speed.
If a vehicle in front is detected while
accelerating to the set target vehicle speed,
vehicle tracking will be started again.
CAUTION
If the driver operates the brake pedal during automatic braking, the pedal
may feel stiff; however, this is not a malfunction. By depressing the brake
pedal further you can apply more braking force. When the brake pedal is
released it will return to its original condition.
NOTE
•When the brakes are applied by Adaptive Cruise Control, the vehicle’s
brake lights will illuminate.
• Even if there is no lead vehicle present, on a downhill grade, the Adaptive
Cruise Control’s automatic brake may operate in order to maintain the set
target vehicle speed.
• Some noises may be audible during automatic braking. This is caused by
the braking control and does not indicate a malfunction.
• To temporarily accelerate quickly, use the accelerator pedal. After acceler-
ating, the vehicle will gradually return to the set target vehicle speed shown
in the gauge cluster.
• There are cases where the vehicle in front has turned off the road while
your vehicle is still controlled by the automatic braking operation that has
activated due to the deceleration of the vehicle in front of yours. In those
cases, the brake will be automatically released gradually. Depress the
accelerator pedal if necessary.
• The lead-vehicle tracking function has the following characteristics:
- If the lead vehicle’s brake lamp is detected, deceleration is started more quickly than without detection.
- If the vehicle moves to the fast lane while travelling more than 37 MPH (60 km/h), the system starts acceleration to the set vehicle speed more
quickly because it is linked with the turn signal.
S01981

Adaptive Cruise Control
49
WARNING
Do not use Adaptive Cruise Control on slippery roads. Doing so may result in
an accident.
CAUTION
When shifting the selector lever to the position, Adaptive Cruise Control
will be automatically canceled. Do not shift the lever to the position unless
it is an emergency. Otherwise the engine brake may not operate, which could
cause an accident.
NOTE
•If EyeSight operation has temporarily stopped, the Pre-Collision Braking
System OFF indicator light and Lane Departure Warning OFF indicator
light illuminate, and the EyeSight temporary stop indicator is displayed on
the multi information display.
Ÿ Refer to page 80.
•If EyeSight is malfunctioning, the EyeSight warning indicator is displayed
on the multi information display, and the Pre-Collision Braking System OFF
indicator light and Lane Departure Warning OFF indicator light will also
illuminate. If this occurs, stop the vehicle in a safe location and then turn off
the engine and restart it. If the indicators remain illuminated after restarting
the engine, Adaptive Cruise Control cannot be used. This will not interfere
with ordinary driving; however the system should be inspected by a
SUBARU dealer as soon as possible.
Ÿ Refer to page 79.
• When the operation of Adaptive Cruise Control has been automatically
canceled, perform the set cruise control operation again after the condition
that caused the cancellation has been corrected. If the cruise control func-
tion cannot be set even after the condition has been corrected, EyeSight
may be malfunctioning. This will not interfere with ordinary driving; how-
ever contact a SUBARU dealer and have the system inspected.
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