brake HYUNDAI ACCENT 2021 Service Manual

5-33
Driving your vehicle
5
Good Braking Practices
Wet brakes can be dangerous! The
brakes may get wet if the vehicle is
driven through standing water or if it
is washed. Your vehicle will not stop
as quickly if the brakes are wet. Wet
brakes may cause the vehicle to pull
to one side.To dry the brakes, apply the brakes
lightly until the braking action returns
to normal, taking care to keep the
vehicle under control at all times. If
the braking action does not return to
normal, stop as soon as it is safe to
do so and call an authorized
HYUNDAI dealer for assistance.
DO NOT drive with your foot resting
on the brake pedal. Even light, but
constant pedal pressure can result in
the brakes overheating, brake wear,
and possibly even brake failure.
If a tire goes flat while you are driv-
ing, apply the brakes gently and
keep the vehicle pointed straight
ahead while you slow down. When
you are moving slowly enough for it
to be safe to do so, pull off the road
and stop in a safe location.
Keep your foot firmly on the brake
pedal when the vehicle is stopped to
prevent the vehicle from rolling for-
ward.
If your vehicle is equipped with an
intelligent variable transmission
(IVT), don't let your vehicle creep for-
ward. To avoid creeping forward,
keep your foot firmly on the brake
pedal when the vehicle is stopped.Be cautious when parking on a hill.
Firmly engage the parking brake and
place the shift lever in P (intelligent
variable transmission). If your vehicle
is facing downhill, turn the front
wheels into the curb to help keep the
vehicle from rolling.
If your vehicle is facing uphill, turn the
front wheels away from the curb to
help keep the vehicle from rolling. If
there is no curb or if it is required by
other conditions to keep the vehicle
from rolling, block the wheels. Under
some conditions your parking brake
can freeze in the engaged position.
This is most likely to happen when
there is an accumulation of snow or
ice around or near the rear brakes or
if the brakes are wet. If there is a risk
that the parking brake may freeze,
apply it only temporarily while you put
the shift lever in P (intelligent variable
transmission) and block the rear
wheels so the vehicle cannot roll.
Then release the parking brake. Do
not hold the vehicle on an incline with
the accelerator pedal.
This can cause the transaxle to over-
heat. Always use the brake pedal or
parking brake. Whenever leaving the vehicle or
parking, always come to a com-
plete stop and continue to
depress the brake pedal. Move
the shift lever into the 1
stgear
(for manual transmission vehi-
cle) or P (Park, for intelligent
variable transmission vehicle)
position, then apply the parking
brake, and place the ignition
switch in the LOCK/OFF posi-
tion.
Vehicles parked with the park-
ing brake not applied or not
fully engaged may roll inadver-
tently and may cause injury to
the driver and others. ALWAYS
apply the parking brake before
exiting the vehicle.
WARNING
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5-36
Driving your vehicle
The warning light illumi-
nates on the LCD display,
when you cancel FCA.
The driver can monitor
FCA ON/OFF status on the LCD dis-
play. Also, the warning light illumi-
nates when ESC (Electronic Stability
Control) is turned off.
If the warning light remains ON when
FCA is activated, have the system
checked by an authorized HYUNDAI
dealer.
The driver can select the initial warn-
ing activation time on the LCD dis-
play.
Go to the 'User Settings →Driving
Assist →Forward Collision-avoid-
ance Assist→Late/Normal/Early'.The options for the initial Forward
Collision-avoidance Assist includes
the following:
- Early :
When this condition is selected, the
initial Forward Collision-avoidance
Assist is activated earlier. This set-
ting maximizes the amount of dis-
tance between the vehicle ahead
before the initial warning occurs.
If the 'Early' condition feels too sen-
sitive, select 'Normal' condition.
Even though, 'Early' is selected if the
front vehicle suddenly stops the ini-
tial warning activation time may not
seem fast.
- Normal :
When this condition is selected, the
initial Forward Collision-avoidance
Assist is activated normally. This set-
ting allows for a nominal amount of
distance between the vehicle ahead
before the initial warning occurs.- Late :
When this condition is selected, the
initial Forward Collision-avoidance
Assist is activated later than normal.
This setting reduces the amount of
distance between the vehicle ahead
before the initial warning occurs.
Select 'Late' when traffic is light and
when driving speed is slow.
Prerequisite for activation
FCA is on and ready when FCA is
selected on the LCD display and
when the following prerequisites are
satisfied:
- ESC (Electronic Stability Control)
is on.
- Driving speed exceeds approxi-
mately 6 mph (10 km/h). (FCA
is only activated within a certain
speed range.)
- When FCA recognizes a vehicle in
front. (FCA may not recognize
every obstacle or provide warnings
and braking in every situation, so
do not rely on FCA to stop the vehi-
cle in instances where the driver
sees an obstacle and has the abil-
ity to apply the brakes).
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5-37
Driving your vehicle
5
FCA Warning Message and
System Control
FCA produces warning messages,
warning alarms, and emergency
braking based on the level of risk of
a frontal collision, such as when a
vehicle ahead suddenly brakes,
when there is no following distance
from the vehicle in front.
Collision Warning (1stwarning)
This initial warning message appears
on the LCD display with a warning
chime.
Completely stop the vehicle
on a safe location before
operating the switch on the
steering wheel to activate
/deactivate FCA.
FCA automatically activates
upon placing the ignition
switch to the ON position. The
driver can deactivate FCA by
canceling the system setting
on the LCD display.
FCA automatically deacti-
vates upon canceling ESC
(Electronic Stability Control).
When ESC is canceled, FCA
cannot be activated on the
LCD display. In this case, the
FCA warning light will illumi-
nate, but it does not indicate a
malfunction.
WARNING
OHCA057029
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5-38
Driving your vehicle
Collision Warning (2ndwarning)
The warning message appears on
the LCD display with the warning
alarms.
The vehicle will reduce its speed to
a certain limit.
- The brake activates gradually for
vehicles ahead.
- The brake control activates within
an arranged limit to ease the
impact from a collision.
Emergency Braking
(3rdwarning)
The warning message appears on
the LCD display with the warning
alarms.
The vehicle will reduce its speed to
a certain limit.
- The brake control activates within
an arranged limit to ease the
impact from a collision. Maximum
brake control is activated just
before the 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.
FCA provides additional braking
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.
FCA braking control is automatical-
ly canceled when risk factors dis-
appear.
OHCA057029
OHCA057030
The driver should always use
extreme caution while operating
the vehicle, whether or not there
is a warning message or alarm
from FCA.
CAUTION
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5-41
Driving your vehicle
5
FCA is only a supplemental
system for the driver’s con-
venience. The driver is
responsible for controlling the
vehicle operation. Do not
solely depend on FCA. Rather,
maintain a safe braking dis-
tance, and, if necessary,
depress the brake pedal to
reduce the driving speed.
In certain instances and
under certain driving condi-
tions, FCA may activate pre-
maturely. This initial warning
message appears on the LCD
display with a warning chime.
Also, in certain instances the
front radar sensor may not
detect the vehicle ahead. FCA
may not activate and the
warning message will not be
displayed.
(Continued)
WARNING (Continued)
If there is a malfunction with
FCA, the Forward Collision-
Avoidance Assist is not
applied even though the brak-
ing system is operating nor-
mally.
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.
FCA may activate during brak-
ing and the vehicle may stop
suddenly shifting loose
objects toward the passen-
gers. Always keep loose
objects secured.
FCA may not activate if the
driver applies the brake pedal
to avoid a collision.
The brake control may not
work, possibly causing a colli-
sion, if a vehicle in front
abruptly stops. Always pay
extreme caution.
(Continued)
(Continued)
Occupants may get injured, if
the vehicle abruptly stops by
the activated FCA. Pay
extreme caution.
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5-42
Driving your vehicle
Limitations of the System
FCA is designed to monitor the vehi-
cle ahead on the roadway through
radar signals to warn the driver that a
collision is imminent, and if neces-
sary, apply emergency braking.
In certain situations, the radar sen-
sor may not be able to detect the
vehicle ahead. In these cases, FCA
may not operate normally. The driver
must pay careful attention in the fol-
lowing situations where FCA opera-
tion may be limited.
Detecting vehicles
The sensor may be limited when:
The radar sensor 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
There is interference by electro-
magnetic waves
There is severe irregular reflection
from the radar sensor
The radar sensor recognition 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 vehicle is driven near areas
containing metal substances as a
construction zone, railroad, etc.
The vehicle in front is driving errat-
ically
FCA operates only to detect
vehicles in front of the vehi-
cle.
FCA does not operate when
the vehicle is in reverse.
FCA is not designed to detect
other objects on the road.
FCA does not detect vehicles
in the opposite lane.
FCA does not detect cross
traffic vehicles that are
approaching.
FCA cannot detect the driver
approaching the side view of
a parked vehicle (for example
on a 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.
WARNING
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5-43
Driving your vehicle
5
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
The sensor recognition changes
suddenly when passing over a
speed bump
The vehicle is under heavy vibra-
tion
The vehicle is on roundabouts.
The radar or sensor cover is bro-
ken
The vehicle is passing a tunnel, toll
gate or partially paved road
The radar or camera sensor recog-
nition is under other limited circum-
stances Driving on a curve
The performance of Forward
Collision-Avoidance Assist may be
limited when driving on a curved
road.
The front radar sensor 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 neces-
sary, depress the brake pedal to
reduce your driving speed in order
to maintain a safe distance.The front radar sensor 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 neces-
sary, depress the brake pedal to
reduce your driving speed in order
to maintain a safe distance.
OAE056100
OAE056101
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5-44
Driving your vehicle
Driving on a slope
The performance of Forward
Collision-Avoidance Assist may be
decreased while driving upward or
downward on a slope. The front
radar sensor recognition system
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 recognizes 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, FCA may not immedi-
ately detect the vehicle, especially
if the vehicle changes lanes
abruptly. In this case, you 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.When driving in stop-and-go traffic,
and a stopped vehicle in front of
you merges out of the lane, FCA
may not immediately detect the
new vehicle that is now in front of
you. 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 dis-
tance.
OHCA069038OAE056103OAE056109
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5-45
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, additional special atten-
tion is required. FCA 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.
Information
In some instances, FCA may be can-
celed when subjected to electromag-
netic 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, and
2. This device must accept any inter-
ference received, including interfer-
ence that may cause undesired
operation.
i
i
OHCA069039
Do not use Forward Collision-
avoidance Assist when towing
a vehicle. Application of FCA
while towing may adversely
affect the safety of your vehi-
cle or the towing vehicle.
(Continued)
(Continued)
Use extreme caution when 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.
Forward Collision-Avoidance
Assist may operate when an
object, which has similar
shape or characteristic to a
vehicle, is detected.
FCA is designed to help detect
and monitor the vehicle ahead
in the roadway through radar
signals. It is not designed to
detect bicycles, motorcycles,
or smaller wheeled objects
such as luggage bags, shop-
ping carts, or strollers.
Never try to test the operation of
FCA. Doing so may cause
severe injury or death.
When you replace or reinstall
the front bumper or radar, we
recommend that you take
your vehicle to an authorized
HYUNDAI dealer and have the
system checked.
WARNING
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5-47
Driving your vehicle
5
Information
• During normal cruise control opera-
tion, when the SET switch is activat-
ed or reactivated after applying the
brakes, cruise control will energize
after approximately 3 seconds. This
delay is normal.
• Before activating cruise control
function, the system will check to
verify that the brake switch is oper-
ating normally. Depress the brake
pedal at least once after turning ON
the ignition or starting the engine.
To set Cruise Control speed
1. Press the CRUISE button on the
steering wheel to turn the system
on. The cruise indicator will illumi-
nate.
2. Accelerate to the desired speed,
which must be more than 20 mph
(30 km/h).
Information - Manual trans-
mission
For manual transmission vehicles, you
should depress the brake pedal at
least once to set cruise control after
starting the engine.3. Push the toggle switch down
(SET-), and release it. The SET
indicator light will illuminate.
4. Release the accelerator pedal.
Information
On a steep slope, the vehicle may
slightly slow down or speed up, while
driving uphill or downhill.
i
i
i
OHCA057023
OHCM057024
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