brake GENESIS G90 2020 Repair Manual

If you select 'Warning only' for thesystem setting, the FCA system
activates and produces only warn-
ing 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 brakingsystem 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 brake control is automat- ically canceled, when risk factors
disappear.
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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.
After the brake control is acti- vated, the driver must immedi-
ately depress the brake pedal
and check the surroundings.
The brake activation by the
system lasts for about 2 sec-
onds.
CAUTION
If any other warning soundsuch as seat belt warning
chime is already generated, the
Forward Collision-Avoidance
Assist (FCA) system warning
may not sound.
Playing the vehicle audio sys- tem at high volume may pre-
vent occupants from hearing
the system warning sounds.
The 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
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
Never deliberately drive danger-
ously to activate the system.
WARNING

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Driving your vehicle
System Malfunction
Check Forward Collision-
Avoidance Assist system
When FCA is not working properly,the FCA warning light ( ) will illu-
minate and the warning message
will appear for a few seconds. After
the message disappears, the mas-
ter warning light ( ) will illumi-
nate. In this case, have the vehicle
inspected by an authorized retailer
of Genesis Branded products.
The FCA warning message may appear along with the illumination
of the ESC (Electronic Stability
Control) warning light. Both FCA
warning light and warning mes-
sage will disappear once the ESC
warning light issue is resolved.
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FCA is only a supplementalsystem for the driver's con-
venience. It is the driver's
responsibility to control 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 or to stop the vehicle.
WARNING
In certain instances andunder certain driving condi-
tions, the FCA system may
produce a warning alarm and
control the brake system
unnecessarily. And, the FCA
system may not produce a
warning alarm and control the
brake system due to detecting
limitation of sensor.
Also due to sensing limita-
tions, in certain situations, 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 may not be
displayed.
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 collision.

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Limitations of the System
The Forward Collision-Avoidance
Assist (FCA) system is designed to
monitor the vehicle ahead or a
pedestrian in 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 sensor
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 system may not operate for 15
seconds after the engine is started
or the camera is initialized
The radar sensor or camera is cov- ered with a foreign object or debris
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
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 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 vehicles that are
stopped vertically to your
vehicle at a intersection or
dead end street.
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 or to stop the
vehicle.
WARNING
The brake control may be insufficient, possibly causing
a collision, if a vehicle in front
abruptly stops. Always pay
extreme caution.
Occupants may get injured, if the vehicle abruptly stops by
the activated FCA system. Pay
extreme caution.
The FCA system operates only when the system detect
vehicles or pedestrian in front
of the vehicle.

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Driving on a curve
The performance of the FCA sys-
tem may be limited when driving on
a curved road.
On curved roads, the other vehicle
on the same lane is not recognized
and the FCA system's perform-
ance may be degraded. This may
result in unnecessary alarm or
braking or no alarm or braking
when necessary.
Also, in certain instances the front
radar sensor or camera recognition
system may not detect the vehicle
traveling on a curved road.
In these cases, the driver must
maintain a safe braking distance,
and if necessary, depress the
brake pedal to reduce your driving
speed in order to maintain a safe
distance. The FCA system may recognize a
vehicle in the next lane when driving
on a curved road.
In this case, the system may unnec-
essarily alarm the driver and apply
the brake.
Always pay attention to road and
driving conditions, while driving. If
necessary, depress the brake pedal
to reduce your driving speed in order
to maintain a safe distance.
Also, when necessary depress the
accelerator pedal to prevent the sys-
tem from unnecessarily decelerating
your vehicle.
Check to be sure that the road condi-
tions permit safe operation of FCA.
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5-62
Driving your vehicle
Driving on a slope The performance of the FCA
decreases while driving upward or
downward on a slope, not recogniz-
ing the vehicle in front in the same
lane. It may unnecessarily produce
the warning message and the warn-
ing alarm, or it may not produce the
warning message and the warning
alarm at all.
When the FCA suddenly recog-
nizes the vehicle in front while
passing 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,
especially if the vehicle changes
lanes abruptly. In this case, you
must maintain a safe braking dis-
tance, 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 vehicle in front of you merges
out of the lane, the FCA system may
not immediately detect the new vehi-
cle that is now in front of you. In this
case, you must maintain a safe brak-
ing distance, and if necessary,
depress the brake pedal to reduce
your driving speed in order to main-
tain a safe distance.
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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, additional special atten-
tion 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 necessary,
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 detectedby 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 mobil- ity
The sensor recognition is limited
The radar sensor or camera is cov- ered with a foreign object or debris
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
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Driving your vehicle
Blind-Spot Collision-AvoidanceAssist (BCA) system
The Blind-Spot Collision-Avoidance
Assist (BCA) system may apply brak-
ing power, when an approaching vehi-
cle is detected within a certain dis-
tance next to or behind your vehicle.
In this situation, the system gently
apply braking power on the tire,
which is located in the opposite side
of the possible-colliding point. The
instrument cluster will inform the
driver of the system activation.
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
conditions.
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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 attention to road and traffic conditions while
driving. The Blind-Spot
Collision-Avoidance Assist
system may not operate or
unnecessarily operate depend-
ing on certain situations.
The Blind-Spot Collision- Avoidance Assist system is not
a substitute for safe driving
practices, but is a supplemen-
tal system only. It is the respon-
sibility of the driver to always
drive cautiously to prevent
unexpected and sudden situa-
tions from occurring. Pay
attention to road conditions at
all times.
WARNING

5-78
Driving your vehicle
Limitations of the System
The driver must be cautious in the
below situations because the system
may not detect other vehicles or
objects in certain circumstances:
When a trailer or carrier isinstalled.
The vehicle driven in inclement weather such as heavy rain or
snow.
The sensor is covered with rain, snow, mud, etc.
The rear bumper where the sensor is located is covered with a foreign
object such as a bumper sticker, a
bumper guard, a bike rack, etc.
The rear bumper is damaged, or the sensor is out of the original
default position.
The vehicle height gets lower or higher due to heavy loading in a
trunk, abnormal tire pressure, etc.
When the temperature of the rear bumper is high.
When the sensors are blocked by other vehicles, walls or parking-lot
pillars.
The vehicle is driven on a curved road.
The vehicle is driven through a toll- gate.
The road pavement (or the periph- eral ground) abnormally contains
metallic components (i.e. possibly
due to subway construction).
There is a fixed object near the vehicle, such as a guardrail.
While going down or up a steep road where the height of the lane is
different. Driving on a narrow road where
trees or grass or overgrown.
Driving in rural areas where the sensor does not detect another
vehicle or structure for an extended
period of time.
Driving on a wet road.
Driving on a road where the guardrail or wall is in double struc-
ture.
A big vehicle is near such as a bus or truck.
When the other vehicle approach- es very close.
When the other vehicle passes at a very fast speed.
While changing lanes.
If the vehicle has started at the same time as the vehicle next to
you and has accelerated.
When the vehicle in the next lane moves two lanes away from you
OR when the vehicle two lanes
away moves to the next lane from
you.
A motorcycle or bicycle is near.
A flat trailer is near.
If there are small objects in the detecting area such as a shopping
cart or a baby stroller.
If there is a low height vehicle such as a sports car.
The brake pedal is depressed.
ESC (Electronic Stability Control) is activated.
ESC (Electronic Stability Control) malfunctions.
The tire pressure is low or a tire is damaged.
The brake is reworked.

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Driving your vehicle
Rear Cross-Traffic Collision-Avoidance Assist (RCCA) system
If the risk of collision is detected while the RCCW is generated, brake control
may be activated. The instrument cluster will inform the driver of the brake
control. If the rear view monitor system is operating, a warning will also
appear on the AVN system screen.
After the brake control is activated, the driver must immediately depress the
brake pedal and check the surroundings.
- The brake activation by the system lasts for about 2 seconds.The driver must pay attention as the brake is disengaged after 2 seconds.
- The brake control by the system is canceled if the driver depresses the brake pedal with sufficient power.
- Brake control is activated once for each right/left approach after shifting the shift lever to R (Reverse).
The brake control may not operate properly according to the status of the
ESC (Electronic Stability Control). The same warning message is displayed
on the instrument cluster when:
- The ESC (Electronic Stability Control) warning light is on.
- The ESC (Electronic Stability Control) is engaged in a different function.
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■
Left
■Left
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Right
■Right
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Drive safely even though the
vehicle is equipped with a Rear
Cross-Traffic Collision Warning
system and Rear Cross-Traffic
Collision-Avoidance Assist
system. Do not solely rely on
the system but check your sur-
rounding when backing the
vehicle up.
The driver is responsible for accurate brake control.
Always pay extreme caution while driving. The Rear Cross-
Traffic Collision Warning sys-
tem and Rear Cross-Traffic
Collision-Avoidance Assist
system may not operate prop-
erly or unnecessarily operate
depending on traffic and driv-
ing conditions.
The Rear Cross-Traffic Collision-Avoidance Assist
system is not a substitute for
safe driving practices, but a
convenience function only. It is
the responsibility of the driver
to always drive cautiously to
prevent unexpected and sud-
den situations from occurring.
Pay attention to the road condi-
tions at all times.
WARNING
When the operation conditionof the Rear Cross-Traffic
Collision Warning system is
satisfied, the warning will
occur every time a vehicle
approaches the side or rear of
your stopped (0 mph (0 km/h)
vehicle speed) vehicle.
The system's warning or brake may not operate properly if the
left or right of your vehicle's
rear bumper is blocked by a
vehicle or obstacle.
Always pay attention to road and traffic conditions while
driving, whether or not the
warning light on the outer side
view mirror illuminates or
there is a warning alarm.
Playing the vehicle audio sys- tem at high volume may pre-
vent occupants from hearing
the system's warning sounds.
If any other warning sound such as seat belt warning
chime is already generated, the
Rear Cross-Traffic Collision
Warning system warning may
not sound.
CAUTION