2020 HYUNDAI IONIQ brake sensor

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Safety system of your vehicle
2
In an angled collision, the force of
impact may direct the occupants in a
direction where the air bags would
not be able to provide any additional
benefit, and thus the sensors may
not deploy any air bags.Just before impact, drivers often
brake heavily. Such heavy braking
lowers the front portion of the vehicle
causing it to "ride" under a vehicle
with a higher ground clearance. Air
bags may not inflate in this "under-
ride" situation because deceleration
forces that are detected by sensors
may be significantly reduced by such
"underride" collisions.Front air bags may not inflate in
rollover accidents because air bag
deployment could not provide protec-
tion to the occupants.
However, side and curtain air bags
may inflate when the vehicle is rolled
over by a side impact collision.
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3-60
Convenient features of your vehicle
Regenerative braking rate indi-
cator
While using the regenerative brakes,
you may select the regenerative
braking rate from 0 to 3 by pulling the
paddle shifter.
For more information, refer to
"Paddle Shifter (Regenerative
Braking Control)" in chapter 5.
Warning and Indicator lights
Information
Make sure that all warning lights are
OFF after starting the vehicle. If any
light is still ON, this indicates a situa-
tion that needs attention.
Ready Indicator
This indicator illuminates:
When the vehicle is ready to be driven.
- ON : Normal driving is possible.
- OFF : Normal driving is not possible,
or a problem has occurred.
- Blinking : Emergency driving.
When the ready indicator goes OFF
or blinks, there is a problem with the
system. In this case, have your vehi-
cle inspected by an authorized
HYUNDAI dealer.
Service Warning Light
This warning light illuminates:
When the POWER button is in the
ON position.
- It illuminates for approximately 3
seconds and then goes off.
When there is a problem with relat-
ed parts of the electric vehicle con-
trol system, such as sensors, etc.
When the warning light illuminates
while driving, or does not go OFF
after starting the vehicle, have your
vehicle inspected by an authorized
HYUNDAI dealer.
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Driving your vehicle
Before driving.........................................................5-3
Before Entering the Vehicle ...........................................5-3
Before Starting ..................................................................5-3
Power button ..........................................................5-5
POWER Button Positions.................................................5-6
Starting the Vehicle ..........................................................5-8
Turning Off the Vehicle ...................................................5-9
Reduction gear .....................................................5-10
Reduction Gear Operation ............................................5-10
Parking ...............................................................................5-12
LCD Display Messages ...................................................5-12
Good Driving Practices ..................................................5-15
Paddle shifter (regenerative braking control) ..5-16
One Pedal Driving ...........................................................5-17
Smart regeneration system with
smart cruise control system...............................5-18
System Setting .................................................................5-18
Activating the Smart Regeneration System .............5-18
Cancelling the Smart Regeneration System .............5-20
Resuming the Smart Regeneration System ..............5-20
Disabling the Smart Regeneration System ...............5-20
Vehicle-to-Vehicle Front Recognition
- Front Radar Sensor ....................................................5-20
Warning Message............................................................5-21
Limitations of the System .............................................5-21
Braking system ...................................................5-26
Power Brakes ...................................................................5-26
Disc Brake Wear Indicator ............................................5-27
Electronic Parking Brake (EPB)...................................5-27
Auto Hold ..........................................................................5-32
Anti-lock Brake System (ABS) ....................................5-36
Electronic Stability Control (ESC)................................5-38
Vehicle Stability Management (VSM).........................5-42
Hill-Start Assist Control (HAC) ....................................5-43
Good Braking Practices .................................................5-44
Drive Mode Integrated Control System ...........5-45
Drive mode ........................................................................5-45
Initial setting for each Drive Mode ............................5-45
Forward Collision-Avoidance assist (FCA) .....5-46
System setting and activation......................................5-46
FCA warning message and brake control .................5-48
FCA sensor (Front view camera+ Front radar) .......5-51
System malfunction ........................................................5-53
Limitations of the system .............................................5-55
Lane Keeping Assist (LKA) .................................5-62
LKA operation ..................................................................5-64
Warning light and message ..........................................5-67
Limitations of the System .............................................5-68
LKA system function change .......................................5-70
5

5-20
Cancelling the Smart
Regeneration System:
Cancelled manually
Pulling and holding the right side
paddle shifter for more than 1 sec-
ond.
The Smart Regeneration System
turns off temporarily. Note that the
"AUTO" indicator in the LCD dis-
play turns off.
Cancelled automatically
- The vehicle is shifted to N
(Neutral), R (Reverse) or P
(Park).
- The Cruise Control System
(including the Smart Cruise
Control system) is enabled.
- The ESC (Electronic Stability
Control) or ABS is activated.
Resuming the Smart
Regeneration System
To re-activate the Smart
Regeneration System while driving,
pull and hold the right side paddle
shifter for more than 1 second again.
Note that the "AUTO" indicator in the
LCD display turns back on, signaling
that the Smart Regeneration System
is enabled again.
Disabling the Smart
Regeneration System
To turn off the system, shift to P (Park)
and deselect 'User Settings →
Convenience →Smart Regeneration'
on the User Settings mode.
Vehicle-to-Vehicle Front
Recognition - Front Radar
Sensor
In order for the Smart Regeneration
System to operate properly, always
make sure the radar sensor cover is
clean and free of dirt, snow, and
debris. Dirt, snow, or foreign sub-
stances on the lens may adversely
affect the sensing performance of
the sensor. In this case, the system
operation may stop temporarily and
not operate normally.
Driving your vehicle
Do not apply license plate
frame or foreign objects such
as a bumper sticker or a
bumper guard near the radar
sensor. Doing so may adverse-
ly affect the sensing perform-
ance of the radar.
Always keep the radar sensor
and lens cover clean and free
of dirt and debris.
(Continued)
CAUTION
When the Smart Regeneration
System is cancelled automati-
cally, adjust the vehicle speed
directly by depressing the
accelerator or brake pedal
according to the road condition
ahead and driving condition.
WARNING

5-23
Driving your vehicle
Lane changing
A vehicle which moves into your
lane from an adjacent lane cannot
be recognized by the sensor until it
is in the sensor's detection range.
The radar may not detect immedi-
ately when a vehicle cuts in sud-
denly. Always pay attention to the
traffic, road and driving conditions.
Vehicle recognition
Some vehicles in your lane cannot
be recognized by the sensor:
- Narrow vehicles such as motorcy-
cles or bicycles
- Vehicles offset to one side
- Slow-moving vehicles or sudden-
decelerating vehicles
- Stopped vehicles (When the vehi-
cle ahead drives away, the system
may not detect a stopped vehicle.)
- Vehicles with small rear profile
such as trailers with no loadsA vehicle ahead cannot be recog-
nized correctly by the sensor if any of
following occurs:
- When the vehicle is pointing
upwards due to overloading in the
luggage compartment
- While the steering wheel is operat-
ing
- When driving to one side of the
lane
- When driving on narrow lanes or
on curves
Apply the brake or accelerator pedal
if necessary.5
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Driving your vehicle
FCA is only a supplemental
system for the driver's con-
venience. The driver should
hold the responsibility to con-
trol the vehicle operation. Do
not solely depend on 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.
In certain instances and
under certain driving condi-
tions, FCA system may acti-
vate unintentionally. This ini-
tial warning message appears
on the LCD display with a
warning chime.
Also due to sensing limita-
tions, in certain situations, the
front radar sensor or front view
camera recognition system
may not detect the vehicle,
pedestrian or cyclist ahead.
FCA system may not activate
and the warning message may
not be displayed.
(Continued)
(Continued)
Even if there is any problem
with the brake control func-
tion of FCA system, the vehi-
cle's basic braking perform-
ance will operate normally.
However, brake control func-
tion 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.
FCA system may activate dur-
ing braking and the vehicle
may stop suddenly shifting
loose objects toward the pas-
sengers. Always keep loose
objects secured.
FCA system may not activate
if the driver applies the brake
pedal to avoid collision.
(Continued)WARNING
FCA system does not operate
when the vehicle is in reverse.
FCA system is not designed
to detect other objects on the
road such as animals.
(Continued)
WARNING
(Continued)
If a vehicle in front abruptly
stops, the brake control may
not work possibly causing a
collision.
Occupants may get injured, if
the vehicle abruptly stops by
activated FCA system. Pay
extreme caution.
FCA system operates only
when the system detects vehi-
cles, pedestrian, or cyclist
directly in front of the vehicle.
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5-55
Driving your vehicle
5
Limitations of the system
Forward Collision-Avoidance Assist
system is designed to monitor the
vehicle ahead or a pedestrian or
cyclist in the roadway through front
view camera and radar signals recog-
nition to warn the driver that a colli-
sion is imminent, and if necessary,
apply emergency braking.
In certain situations, the front view
camera or the front radar sensor may
not be able to detect the vehicle,
pedestrian or cyclist ahead. In these
cases, FCA system may not operate
normally. The driver must pay careful
attention in the following situations
where the FCA operation may be lim-
ited.
Detecting vehicles
The sensor may be limited when:
The system may not operate for 15
seconds after the vehicle is started
or the front view camera is initial-
ized
The front view camera or front
radar sensor is covered with a for-
eign object or debris
The front view camera lens is con-
taminated 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 front view camera or
front radar sensor
There is interference by electro-
magnetic waves
There is severe irregular reflection
from the front radar sensor
The front view camera/front radar
sensor recognition is limited
The vehicle in front is too small to
be detected (for example a motor-
cycle etc.) (Continued)
FCA system does not detect
vehicles in the opposite lane.
FCA system does not detect
cross traffic vehicles that are
approaching.
FCA system cannot detect
vehicles that are stopped ver-
tically to your vehicle at a
intersection or dead end
street.
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 or to stop the
vehicle.

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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 view camera or front
radar sensor recognition system
may not detect the vehicle, pedes-
trian or cyclist 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.
Forward Collision-Avoidance Assist
system may recognize a vehicle or
pedestrian or cyclist 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.
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