brake HYUNDAI NEXO 2019 Repair Manual

5-39
Driving your vehicle
5
The Forward Collision-Avoidance
Assist (FCA) system is designed to
help detect and monitor the vehicle
ahead or detect a pedestrian or
cyclists in the roadway through radar
signals and camera recognition to
warn the driver that a collision is
imminent, and if necessary, apply
emergency braking.System Setting and Activation
System setting
The driver can activate the FCA by
placing the power button to the ON
position and by selecting on the
AVN screen :
"Vehicle settings →Driver assis-
tance →Forward safety"
- If you select "Active assistance",
the FCA system activates. The
FCA produces warning mes-
sages and warning alarms in
accordance with the collision risk
levels. Also, it controls the brakes
in accordance with the collision
risk levels.
- If you select "Warning Only", the
FCA system activates and pro-
duces only warning alarms in
accordance with the collision risk
levels. You should control the
brake directly because the FCA
system do not control the brake.
- If you select "Off", the FCA sys-
tem deactivates,
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Take the following precautions
when using the Forward Collision-
Avoidance Assist (FCA) system:
This system is only a supple-
mental system and it is not
intended to, nor does it replace
the need for extreme care and
attention of the driver. The
sensing range and objects
detectable by the sensors are
limited. Pay attention to the
road conditions at all times.
NEVER drive too fast in accor-
dance with the road condi-
tions or while cornering.
Always drive cautiously to
prevent accidents from any
unexpected and sudden situa-
tions. The Forward Collision-
Avoidance system may not
always stop the vehicle com-
pletely and is only intended to
help mitigate a collision that
is imminent.
WARNING

5-41
Driving your vehicle
5
Prerequisite for activation
The FCA system is on and ready
when FCA is selected on the AVN
vehicle settings and when the follow-
ing prerequisites are satisfied:
- The ESC (Electronic Stability
Control) is on.
- Driving speed exceeds approxi-
mately 5 mph (8 km/h) (The FCA
is only activated within a certain
speed range.).
- The system detects a pedestrian,
cyclists or a vehicle in front, which
may collide with your vehicle. (The
FCA may not be activated or may
sound a warning alarm in accor-
dance with the driving situation or
vehicle condition.)
If you select "Warning only", the
FCA system activates and pro-
duces only warning alarms in
accordance with the collision risk
levels.
❈The FCA may not operate proper-
ly according to the frontal situa-
tion, the direction of pedestrian or
cyclist and speed.
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 or cyclists
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 Vehicle set-
tings in the AVN screen. The options
for the initial Forward Collision
Warning include Early or Later initial
warning time.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
POWER button to the ON
position. The driver can deac-
tivate the FCA by canceling
the system setting on the AVN
screen.
The FCA automatically deacti-
vates upon canceling the ESC
(Electronic Stability Control).
When the ESC is canceled,
the FCA cannot be activated
on the AVN screen. The FCA
warning light will illuminate
which is normal.
WARNING

5-42
Driving your vehicle
Collision Warning (First warning)
This warning message appears on
the LCD display with a warning
chime. Additionally, some vehicle
system intervention occurs by the
driving 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.- If you select "Warning Only", the
FCA system activates and pro-
duces only warning alarms in
accordance with the collision risk
levels. You should control the brake
directly because the FCA system
do not control the brake.
Emergency Braking
(Second warning)
This warning message appears on
the LCD display with a warning
chime.
Additionally, some vehicle system
intervention occurs by the driving
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.
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Driving your vehicle
5
- If you select "Warning Only", the
FCA system activates and pro-
duces only warning alarms in
accordance with the collision risk
levels. You should control the brake
directly because the FCA system
do not control the brake.
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
depresses 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.
The driver should always use
extreme caution while operat-
ing the vehicle, whether or not
there is a warning message or
alarm from the FCA system.
If any other warning sound
such as seat belt warning
chime is already generated,
the Forward Collision-
Avoidance Assist (FCA) sys-
tem warning may not sound.
CAUTION
The FCA system logic operates
within certain parameters, such
as the distance from the vehi-
cle, pedestrian or cyclists
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 oper-
ation 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

5-46
Driving your vehicle
System Malfunction
Check Forward Collision Avoidance
Assist system
When the FCA is not working prop-
erly, the FCA warning light ( )
will illuminate and the warning
message will appear for a few sec-
onds. After the message disap-
pears, the master warning light
( ) will illuminate. In this case,
have the vehicle inspected by an
authorized HYUNDAI dealer.
The FCA warning message may
appear along with the illumination
of the ESC (Electronic Stability
Control) warning light.
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 unintentionally. This
initial 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, pedestrian
or cyclists ahead. The FCA
system may not activate and
the warning message will not
be displayed.
WARNING Even if there is any problem
with the brake control func-
tion of the FCA system, the
vehicle's basic braking per-
formance will operate normal-
ly. However, brake control
function for avoiding collision
will not activate.
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.
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5-47
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 or cyclists on the roadway
through radar signals and camera
recognition to warn the driver that a
collision is imminent, and if neces-
sary, apply emergency braking.
In certain situations, the radar sen-
sor or the camera may not be able to
detect the vehicle, a pedestrian or
cyclists ahead. In these cases, the
FCA system may not operate nor-
mally. 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 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).
The FCA system cannot
detect the cross traffic cyclist
that are approaching.
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.
Occupants may get injured, if
the vehicle abruptly stops by
the activated FCA system. Pay
extreme caution.
The FCA system operates
only to detect vehicles, pedes-
trian or cyclist in front of the
vehicle.
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.
WARNING

5-49
Driving your vehicle
5
- Driving on a curve
The performance of Forward
Collision-Avoidance Assist system
may be limited when driving on a
curved road.
The front camera or radar sensor
recognition system may not detect
the vehicle, pedestrian or cyclist trav-
eling in front on a curved road.
This may result in no alarm and brak-
ing 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 driv-
ing 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 or front radar sensor
recognition may not detect the vehi-
cle, pedestrian or cyclist 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, pedestrian or
cyclist in front while passing over a
slope, you may experience sharp
deceleration.
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5-50
Driving your vehicle
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.
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5-51
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 or
cyclists
The sensor may be limited when:
The pedestrian or cyclist is not fully
detected by the camera recogni-
tion system, for example, if the
pedestrian is leaning over or is not
fully walking upright
The pedestrian or cyclist is moving
very quickly or appears abruptly in
the camera detection area
The pedestrian or cyclist is wear-
ing clothing that easily blends into
the background, making it difficult
to be detected by the camera
recognition 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 or cyclist from
other objects in the surroundings,
for example, when there is a group
of pedestrians, cyclist or a large
crowd There is an item similar to a per-
son's body structure
The pedestrian or cyclist 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;
a clear view of the road is obstruct-
ed
The adverse road conditions cause
excessive vehicle vibrations while
driving
When the pedestrian or cyclist
suddenly interrupts in front of the
vehicle
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Driving your vehicle
5
Blind-Spot Collision-Avoidance Assist
(BCA) system is automatically deacti-
vated when:
- The vehicle drives a certain dis-
tance away
- The vehicle direction is changed
against the possible-colliding point
- The steering wheel is abruptly
moved
- The brake pedal is depressed
- After a certain period of time
The driver should drive the vehicle in
the middle of the vehicle lanes to
keep the system in the ready status.
When the vehicle drives too close to
one side of the vehicle lanes, the
system may not properly operate.
In addition, the system may not prop-
erly control your vehicle in accor-
dance with driving situations. Thus,
always pay close attention to road
situations.Detecting Sensor
(Front View Camera and Rear
Corner Radar)

The driver is responsible for
accurate steering.
Do not unnecessarily operate
the steering wheel, when the
Blind-Spot Collision-Avoidance
Assist System is in operation.
Always pay extreme caution
while driving. The Blind-Spot
Collision-Avoidance Assist
system may not operate or
unnecessarily operate in
accordance with your driving
situations.
The Blind-Spot Collision-
Avoidance Assist system is
not a substitute for safe driv-
ing practices, but a conven-
ience function only. It is the
responsibility of the driver to
always drive cautiously to
prevent unexpected and sud-
den situations from occur-
ring. Pay attention to the road
conditions at all times.
WARNING
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■Front view camera
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■Rear corner radar