2017 SUBARU LEGACY Driving Assist Manual

62
Pre-Collision Throttle Management
When an obstacle is detected in front of the
vehicle, and the vehicle is stopped or traveling
very slowly, if the system determines that the
accelerator pedal has been depressed by
more than the necessary amount (due to
driver error), it greatly restricts engine output
and ensures that vehicle forward movement is
slower than normal in order to give the driver
additional time to brake or react.
During system operation, a buzzer will sound
several short beeps, and “Obstacle Detected”
will be shown on the warning screen area of
the multi information display. The lead vehicle
indicator will also flash.
This function only activates when the trans-
mission select lever is in the or posi-
tion.
WARNING
Do not rely excessively on Pre-Collision Throttle Management. Pre-
Collision Throttle Management is not designed to help you avoid colli-
sions in many situations. Always check the select lever and pedal posi-
tions as well as the surrounding environment before starting and
operating the vehicle. Relying only on Pre-Collision Throttle
Management could result in an accident.x Pre-Collision Throttle Management is not designed to maintain the vehicle
in a stopped condition.
x Pre-Collision Throttle Management will not reduce acceleration under all
conditions. It is also not designed to prevent collisions.
x Pre-Collision Throttle Management will operate when an obstacle is
detected in front. However, this function will not reduce acceleration in
cases where no obstacle is recognized (for example when approaching a
cliff, etc.)
x Do not intentionally depress the accelerator pedal excessively when there
are obstacles nearby. If the driver relies only on Pre-Collision Throttle
Management to control acceleration, collisions may occur.
S01125
“
R e
p e
ate
d s
h o r
t
b e
e p
s”
S01119
Obstacle
Detected
DM

Pre-Collision Throttle Management
63
Continued on next pageŸ
xIf your vehicle is trapped on a railroad crossing and you are trying to
escape by driving through the crossing gate, the stereo cameras may rec-
ognize the crossing gate as an obstacle and Pre-Collision Throttle
Management system may activate. In this case, remain calm and either
continue to depress the accelerator pedal or turn off the Pre-Collision
Throttle Management system.
Ÿ Refer to page 67.
x Pre-Collision Throttle Management may not activate depending on the fol-
lowing conditions:
- The distance between your vehicle and the obstacle, speed difference, and lateral displacement (amount of offset)
- Recognition status of the stereo cameras In particular, the function may not activate in the following cases:
xBad weather (for example heavy rain, a blizzard or thick fog)
x When visibility is poor due to sand or smoke in the air
x When light is poor in the evening, early morning, or at night
x In a dark area (indoor parking area, etc.)
x When there is an obstacle outside the area illuminated by the head-
lights
x When affected by strong light from the front (for example sunlight at
sunrise or sunset headlight beams, etc.)
x When there is snow, frost, dirt or dust on the windshield, or it is clouded
x When fluid has not been fully wiped off the windshield during or after
use of the window washer
x When obstacles cannot be correctly recognized due to water droplets
from rain or the washer, or the wiper blades obstructing the stereo
cameras’ field of view
x When the stereo cameras’ field of view is obstructed (for example by a
canoe on the roof of the vehicle)
x With low obstacles (low wall, crash barrier, low vehicle, etc.)
x When the size and height of an obstacle is smaller than the limitations
of the stereo cameras’ recognition capability
x With small animals or children.
x With pedestrians who are sitting or lying down
x When the rear portion
nearest your vehicle is
too small or too close
(such as a trailer or
oncoming vehicle) the
system may not recog-
nize the part of that
vehicle which is closest
to you.
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Pre-Collision Throttle Management
64
ŸContinued from previous page
xWhen there is a fence or
wall, etc., with a uniform
pattern (striped pattern,
brick, etc.) or with no pat-
tern in front
x When there is a wall or
door made of glass or a
mirror in front
x When an obstacle (another
vehicle, motorcycle, bicy-
cle, pedestrian, animal or
child, etc.) cuts in from the
side or jumps out suddenly
x When starting, if you change lanes and your vehicle is immediately
behind the obstacle
x On sharp curves, steep uphill grades or steep downhill grades
- When the system determines that steering operation by the driver is intended as evasive action
x For your safety, do not test Pre-Collision Throttle Management on its own. It
may operate improperly and cause an accident.
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Pre-Collision Throttle Management
65
Continued on next pageŸ
CAUTION
xIn the following situations, turn off Pre-Collision Throttle Management. Other-
wise Pre-Collision Throttle Management 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 allows the wheels to spin freely
- When passing hanging banners, flags or branches, or when thick/tall vege- tation is contacting the vehicle
x The Pre-Collision Throttle Management may activate in the following situa-
tions. Therefore concentrate on safe driving.
- When your vehicle is close to the vehicle in front
- When passing through an automatic gate
- When your vehicle is in a location where the grade of the road changes rapidly
- When passing through clouds of steam or smoke
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66
ŸContinued from previous page
- When there is an obstacle on
a curve or intersection
- When narrowly passing a vehicle or object
- When stopping very close to a wall or a vehicle in front
NOTE
xWhen the accelerator pedal is depressed for approximately three seconds,
Pre-Collision Throttle Management will be released gradually.
x When the Pre-Collision Braking System is turned off, Pre-Collision Throttle
Management is also turned off.
Ÿ Refer to page 30.
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Pre-Collision Throttle Management
67
Pressing and holding the Pre-Collision Braking System OFF switch for approximately 2 sec-
onds or longer will turn off the Pre-Collision Throttle Management System. When 1 short
beep sound emits, this function is turned off and the Pre-Collision Braking System OFF indi-
cator light on the instrument panel illuminates.
To turn the system back on, press and hold the Pre-Collision Braking System OFF switch
again for approximately 2 seconds or longer. When this function is turned on, the Pre-
Collision Braking System OFF indicator light turns off.
Ÿ Refer to page 31.
Turning off Pre-Collision Throttle Management
NOTE
xWhen Pre-Collision Throttle Management is turned off, the Pre-Collision
Braking System also turns off.
x Even when Pre-Collision Throttle Management is turned off, if the ignition
switch is turned off and the engine is restarted, Pre-Collision Throttle
Management will be turned on. The default setting for Pre-Collision
Throttle Management when the vehicle is restarted is “ON”.
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68
Lane Departure Warning
When vehicle speed is approximately 30 MPH (50 km/h) or more, this function warns the
driver if the system detects that the vehicle is likely to depart the traffic lane.
When Lane Departure Warning activates, a buzzer sounds 6 short beeps, and the area
around the lane indicator on the departing side flashes in yellow.
* The illustration depicts a vehicle departing the left lane.
WARNING
Lane Departure Warning will not operate in all conditions. It also will not auto-
matically return the vehicle to the original lane. If the driver relies only on the
Lane Departure Warning to keep the vehicle in the lane, lane departure may
occur, resulting in an accident.
The Lane Departure Warning activates when it detects lane markings. How-
ever, it is not a function which can detect the edge of a road (shoulders or
side ditches, etc.) and warn the driver.
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6
short beeps
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Lane
Departure

Lane Departure Warning
69
CAUTION
In the following situations, the Lane Departure Warning will or may not acti-
vate:x Vehicle speed is approximately 30 MPH (50 km/h) or less.
x When the steering wheel is turned significantly to either side
x When the vehicle is driving around a curve whose radius is 0.18 miles (300
m) or smaller.
x When the brake pedal is depressed or immediately after it is depressed
x When the following distance behind a vehicle in front is short
x While the turn signal is operating and for approximately 4 seconds after the
turn signal lever has returned to its original position
x For approximately 4 seconds after the hazard lamp has switched off
x When the vehicle has not returned to the inside of the lane after the Lane
Departure Warning has activated
x The lane is narrow.
x When it is difficult for the camera to detect lane markings
- There are no lane markings or they are very worn.
- The lane markings are yellow.
- It is difficult to detect lane markings as they are similar in color to the road surface.
- The lane markings are narrow.
NOTE
x The following situations may cause incorrect lane detection and a faulty
Lane Departure Warning to occur.
- Tire tracks on a wet road or snow-covered road
- Boundaries between snow and asphalt, marks from road repair, etc.
- Shadows of guardrails
- Lane markings are drawn in double
- There are some lane markings left from roadwork or markings from the previous road.
x When the Lane Departure Warning OFF indicator light is illuminated, the
Lane Departure Warning is inactive.
Ÿ Refer to page 70.