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5-95
Driving your vehicle
5
Limitations of the System
The Forward Collision Avoidance
Assist (FCA) system is designed to
monitor the vehicle ahead or a
pedestrian on the roadway through
radar signals and camera recogni-
tion to warn the driver that a collision
is imminent, and if necessary, apply
emergency braking.
In certain situations, the radar sen-
sor or the camera may not be able to
detect the vehicle or pedestrian
ahead. In these cases, the FCA sys-
tem may not operate normally. The
driver must pay careful attention in
the following situations where the
FCA operation may be limited.
Detecting vehicles
The sensor may be limited when:
• The radar sensor or camera is
blocked with a foreign object or
debris
• Inclement weather such as heavy
rain or snow obscures the field of
view of the radar sensor or camera
• There is interference by electro-
magnetic waves
• The vehicle is on unpaved or
uneven rough surfaces, or road
with sudden gradient changes.
• The vehicle drives through a con-
struction area, on an unpaved
road, or above metal materials,
such as a railway
• The vehicle in front is too small to
be detected (for example a motor-
cycle or a bicycle, etc.)
• The camera’s field of view is not
well illuminated (either too dark or
too much reflection or too much
backlight that obscures the field of
view)
• The camera does not recognize
the entire vehicle in front.
• The vehicle in front is an oversize
vehicle or trailer that is too big to
be detected by the camera recog-
nition system (for example a tractor
trailer, etc.)
• The vehicle in front does not have
rear lights or the rear lights are not
turned ON or the rear lights are
located unusually.
• The outside brightness changes
suddenly, for example when enter-
ing or exiting a tunnel
• The vehicle drives inside a build-
ing, such as a basement parking
lot
• The adverse road conditions cause
excessive vehicle vibrations while
driving
• You are on a roundabout and the
vehicle in front circles
• The camera lens is contaminated
due to tinted, filmed or coated
windshield, damaged glass, or
stuck of foreign matter (sticker,
bug, etc.) on the glass
• The camera is damaged.
• The brightness outside is too low
such as when the headlamps are
not on at night or the vehicle is
going through a tunnel.
• Light coming from a street light or
an oncoming vehicle is reflected on
a wet road surface such as a pud-
dle in the road
• The field of view in front is
obstructed by sun glare
• The shadow is on the road by a
median strip, trees, etc.
• The vehicle drives through a toll-
gate.
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