brake HYUNDAI VELOSTER 2021 Repair Manual

5-71
Driving your vehicle
5
The vehicle in front does not have
their rear lights properly turned ON
The outside brightness changes
suddenly, for example when enter-
ing or exiting 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 windshield glass is fogged up
or frozen; a clear view of the road
is obstructed
The vehicle in front is driving errat-
ically
The vehicle drives through a con-
struction area, on an unpaved
road, or above metal materials,
such as a railway
The vehicle drives inside a build-
ing, such as a basement parking
lot
The adverse road conditions cause
excessive vehicle vibrations while
driving
The vehicle in front is moving verti-
cally to the driving direction The vehicle in front is stopped ver-
tically
The vehicle in front is driving
towards your vehicle or reversing
You are on a roundabout and the
vehicle in front circles
The camera (lens) 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
The shadow is on the lane marker
by a median strip, trees, etc.
Driving through a tunnel entrance,
toll gate, partially paved road
It is foggy Driving on a curve
The performance of Forward
Collision-Avoidance Assist system
may be limited when driving on a
curved road.
The front camera recognition system
may not detect the vehicle traveling
in front on a curved road. This may
result in no alarm and braking when
necessary.
Always pay attention to road and
driving conditions, and if necessary,
depress the brake pedal to reduce
your driving speed in order to main-
tain a safe distance.
OAE056100

5-72
Driving your vehicle
Forward Collision-Avoidance Assist
system may recognize in the next
lane or outside the lane when driving
on a curved road.
If this occurs, the system may unnec-
essarily alarm the driver and apply
the brake.
Always pay attention to road and
driving conditions, while driving. Driving on a slope
The performance of Forward
Collision-Avoidance Assist system
may be decreased while driving
upward or downward on a slope. The
front camera recognition may not
detect the vehicle in front. This may
result in unnecessary alarm and
braking or no alarm and braking
when necessary.
When the system suddenly recog-
nizes the vehicle in front while pass-
ing over a slope, you may experience
sharp deceleration.
Always keep your eyes forward while
driving upward or downward on a
slope and if necessary depress the
brake pedal to reduce your driving
speed in order to maintain distance. Changing lanes
When a vehicle changes lanes in
front of you, the FCA system may not
immediately detect the vehicle, espe-
cially if the vehicle changes lanes
abruptly. In this case, you must main-
tain a safe braking distance, and if
necessary, depress the brake pedal
to reduce your driving speed in order
to maintain a safe distance.
OAE056103OJS058156NOAE056101

5-73
Driving your vehicle
5
When driving in stop-and-go traffic,
and a stopped vehicle in front of you
merges out of the lane, the FCA sys-
tem may not immediately detect the
new vehicle that is now in front of
you. In this case, you must maintain
a safe braking distance, and if nec-
essary, depress the brake pedal to
reduce your driving speed in order to
maintain a safe distance. Detecting the vehicle in front of you
If the vehicle in front of you has cargo
that extends rearward from the cab,
or when the vehicle in front of you
has higher ground clearance, addi-
tional special attention is required.
The FCA system may not be able to
detect the cargo extending from the
vehicle. In these instances, you must
maintain a safe braking distance
from the rearmost object, and if nec-
essary, depress the brake pedal to
reduce your driving speed in order to
maintain distance.
Information
In some instances, the FCA system
may be canceled when subjected to
electromagnetic interference.
Information
This device complies with Part 15 of
the FCC rules.
Operation is subject to the following
two conditions:
1. This device may not cause harmful
interference.
2. This device must accept any inter-
ference received, including interfer-
ence that may cause undesired
operation.
i
i
OAE056109OJS058157N

5-77
Driving your vehicle
5
FCA Warning Message and
System Control
The FCA produces warning mes-
sages and warning alarms in accor-
dance with the collision risk levels,
such as abrupt stopping of the vehi-
cle in front, insufficient braking dis-
tance, or pedestrian detection. Also,
it controls the brakes in accordance
with the collision risk levels.
The driver can select the initial warn-
ing activation time in the User
Settings in the LCD display. The
options for the initial Forward Collision
Warning include EARLY, NORMAL, or
LATE initial warning time.
Collision Warning (First warning)
This warning message appears on
the LCD display with a warning
chime. Additionally, some vehicle
system intervention occurs by the
engine management system to help
decelerate the vehicle.
- Your vehicle speed may decelerate
moderately.
- The FCA system limitedly controls
the brakes to preemptively mitigate
impact in a collision.
Completely stop the vehicle
on a safe location before
operating the switch on the
steering wheel to activate
/deactivate the FCA system.
The FCA automatically acti-
vates upon placing the igni-
tion switch to the ON position.
The driver can deactivate the
FCA by canceling the system
setting on the LCD display.
The FCA automatically deacti-
vates upon canceling the ESC
(Electronic Stability Control).
When the ESC is canceled,
the FCA cannot be activated
on the LCD display. The FCA
warning light will illuminate
which is normal.
WARNING
OJS058143N

5-78
Driving your vehicle
Emergency Braking
(Second warning)
This warning message appears on
the LCD display with a warning
chime.
Additionally, some vehicle system
intervention occurs by the engine
management system to help decel-
erate the vehicle.
- The FCA system limitedly controls
the brakes to preemptively mitigate
impact in a collision. The brake
control is maximized just before a
collision.
Brake operation
In an urgent situation, the braking
system enters into the ready status
for prompt reaction against the dri-
ver’s depressing the brake pedal.
The FCA provides additional brak-
ing power for optimum braking per-
formance, when the driver depress-
es the brake pedal.
The braking control is automatical-
ly deactivated, when the driver
sharply depresses the accelerator
pedal, or when the driver abruptly
operates the steering wheel.
The FCA braking control is auto-
matically canceled, when risk fac-
tors disappear.
OJS058144N
The driver should always use
extreme caution while operating
the vehicle, whether or not there
is a warning message or alarm
from the FCA system.
CAUTION
The FCA system logic operates
within certain parameters, such
as the distance from the vehicle
or pedestrian ahead, the speed
of the vehicle ahead, and the
driver's vehicle speed. Certain
conditions such as inclement
weather and road conditions
may affect the operation of the
FCA system.
WARNING
The FCA braking control cannot
completely stop the vehicle nor
avoid all collisions. The driver
should hold the responsibility
to safely drive and control the
vehicle.
WARNING
Never deliberately drive danger-
ously to activate the system.
WARNING

5-81
Driving your vehicle
5
Occupants may get injured, if
the vehicle abruptly stops by
the activated FCA system. Pay
extreme caution.
Even if there is any problem in
the FCA system’s brake con-
trol function, general braking
performance will operate nor-
mally. In this case, the brake
control function which oper-
ates when the collision is
imminent will not activate.
The FCA is only a supplemen-
tal system for the driver's con-
venience. The driver should
hold the responsibility to con-
trol the vehicle operation. Do
not solely depend on the FCA
system. Rather, maintain a
safe braking distance, and, if
necessary, depress the brake
pedal to reduce the driving
speed.
In certain instances and
under certain driving condi-
tions, the FCA system may
activate prematurely. This ini-
tial warning message appears
on the LCD display with a
warning chime.
Also, in certain instances the
front radar sensor or camera
recognition system may not
detect the vehicle or pedestri-
an ahead. The FCA system
may not activate and the
warning message will not be
displayed.
WARNING If there is a malfunction with
the FCA system, the Forward
Collision avoidance assist
system is not applied even
though the braking system is
operating normally.
If the vehicle in front stops
suddenly, you may have less
control of the brake system.
Therefore, always keep a safe
distance between your vehicle
and the vehicle in front of you.
The FCA system may activate
during braking and the vehi-
cle may stop suddenly shift-
ing loose objects toward the
passengers. Always keep
loose objects secured.
The FCA system may not acti-
vate if the driver applies the
brake pedal to avoid a colli-
sion.
The brake control may not
work, possibly causing a colli-
sion, if a vehicle in front
abruptly stops. Always pay
extreme caution.

5-82
Driving your vehicle
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
There is severe irregular reflection
from the radar sensor
The radar/camera sensor recogni-
tion is limited
The vehicle in front is too small to
be detected (for example a motor-
cycle or a bicycle, etc.)
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 driver's field of view is not well
illuminated (either too dark or too
much reflection or too much back-
light that obscures the field of view)
The vehicle in front does not have
their rear lights properly turned ON In these cases, you must main-
tain a safe braking distance,
and if necessary, depress the
brake pedal to reduce the driv-
ing speed in order to maintain a
safe distance.
The FCA system operates
only to detect vehicles or
pedestrians in front of the
vehicle.
The FCA system does not
operate when the vehicle is in
reverse.
The FCA system is not
designed to detect other
objects on the road such as
animals.
The FCA system does not
detect vehicles in the oppo-
site lane.
The FCA system does not
detect cross traffic vehicles
that are approaching.
The FCA system cannot
detect the driver approaching
the side view of a parked vehi-
cle (for example on a dead
end street.)
WARNING

5-83
Driving your vehicle
5
The outside brightness changes
suddenly, for example when enter-
ing or exiting 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 windshield glass is fogged up;
a clear view of the road is obstruct-
ed
The vehicle in front is driving errat-
ically
The vehicle drives through a con-
struction area, on an unpaved
road, or above metal materials,
such as a railway
The vehicle drives inside a building,
such as a basement parking lot
The adverse road conditions cause
excessive vehicle vibrations while
driving
The vehicle in front is moving verti-
cally to the driving direction
The vehicle in front is stopped ver-
tically
The vehicle in front is driving
towards your vehicle or reversing Driving on a curve
The performance of Forward
Collision-Avoidance Assist system
may be limited when driving on a
curved road.
The front camera recognition system
may not detect the vehicle or pedes-
trian traveling in front on a curved
road. This may result in no alarm and
braking when necessary.
Always pay attention to road and
driving conditions, and if necessary,
depress the brake pedal to reduce
your driving speed in order to main-
tain a safe distance.Forward Collision-Avoidance Assist
system may recognize in the next
lane or outside the lane when driving
on a curved road.
If this occurs, the system may unnec-
essarily alarm the driver and apply
the brake.
Always pay attention to road and
driving conditions, while driving.
OAE056100OAE056101

5-84
Driving your vehicle
Driving on a slope
The performance of Forward
Collision-Avoidance Assist system
may be decreased while driving
upward or downward on a slope. The
front camera recognition may not
detect the vehicle or pedestrian in
front. This may result in unnecessary
alarm and braking or no alarm and
braking when necessary. When the
system suddenly recognizes the
vehicle or pedestrian in front while
passing over a slope, you may expe-
rience sharp deceleration.
Always keep your eyes forward while
driving upward or downward on a
slope and if necessary depress the
brake pedal to reduce your driving
speed in order to maintain distance. Changing lanes
When a vehicle changes lanes in
front of you, the FCA system may not
immediately detect the vehicle, espe-
cially if the vehicle changes lanes
abruptly. In this case, you must main-
tain a safe braking distance, and if
necessary, depress the brake pedal
to reduce your driving speed in order
to maintain a safe distance.When driving in stop-and-go traffic,
and a stopped vehicle in front of you
merges out of the lane, the FCA sys-
tem may not immediately detect the
new vehicle that is now in front of
you. In this case, you must maintain
a safe braking distance, and if nec-
essary, depress the brake pedal to
reduce your driving speed in order to
maintain a safe distance.
OAE056103OJS058016OAE056109

5-85
Driving your vehicle
5
Detecting the vehicle in front of you
If the vehicle in front of you has cargo
that extends rearward from the cab,
or when the vehicle in front of you
has higher ground clearance, addi-
tional special attention is required.
The FCA system may not be able to
detect the cargo extending from the
vehicle. In these instances, you must
maintain a safe braking distance
from the rearmost object, and if nec-
essary, depress the brake pedal to
reduce your driving speed in order to
maintain distance.
Detecting pedestrians
The sensor may be limited when:
The pedestrian is not fully detected
by the camera recognition system,
for example, if the pedestrian is
leaning over or is not fully walking
upright
The pedestrian is moving very
quickly or appears abruptly in the
camera detection area
The pedestrian is wearing clothing
that easily blends into the back-
ground, making it difficult to be
detected by the camera recogni-
tion system
The outside lighting is too bright
(e.g. when driving in bright sunlight
or in sun glare) or too dark (e.g.
when driving on a dark rural road
at night)
It is difficult to detect and distin-
guish the pedestrian from other
objects in the surroundings, for
example, when there is a group of
pedestrians or a large crowd
There is an item similar to a per-
son's body structure
The pedestrian is small The pedestrian has impaired
mobility
The sensor recognition is limited
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
When light coming from a street
light or an oncoming vehicle is
reflected on a wet road surface
such as a puddle in the road
The field of view in front is
obstructed by sun glare
The windshield glass is fogged up
or frozen; a clear view of the road
is obstructed
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
OJS058017