2020 Hyundai Sonata brake sensor

6
6. While Driving
Before Driving ........................................................................\
........................ 6-5Before Entering the Vehicle ........................................................................\
............. 6-5
Before Starting ........................................................................\
................................. 6-5
Ignition Switch ........................................................................\
.......................6-6Key Ignition Switch ........................................................................\
........................... 6-6
Engine Start/Stop Button ........................................................................\
................ 6-9
Remote Start ........................................................................\
.................................... 6-12
Automatic Transmission ........................................................................\
.......6-13Automatic Transmission Operation ........................................................................\
6-13
Parking .................................................................\
....................................................6-16
LCD Display Message ........................................................................\
...................... 6-17
Good Driving Practices ........................................................................\
..................6-18
Paddle Shifter (Manual Shift Mode) ......................................................................6-\
19
Brake System ........................................................................\
........................ 6-20Power Brakes ........................................................................\
.................................. 6-20
Disc Brakes Wear Indicator......................................................................\
.............. 6-20
Electronic Parking Brake (EPB) ........................................................................\
....... 6-21
Auto Hold ........................................................................\
........................................ 6-24
Anti-lock Brake System (ABS) ..................................................................... 6-27Electronic Stability Control (ESC) ........................................................................\
. 6-29
Vehicle Stability Management (VSM) ....................................................................6-31
Hill-Start Assist Control (HAC) ........................................................................\
....... 6-32
Good Braking Practices ................................................................\
......................... 6-32
ISG (Idle Stop and Go) system..................................................................... 6-33To Activate the ISG System ........................................................................\
............ 6-33
To Deactivate the ISG System ........................................................................\
....... 6-35
ISG System Malfunction ........................................................................\
................ 6-35
Battery Sensor Deactivation ........................................................................\
.......... 6-36
Drive Mode Integrated Control System ...................................................... 6-37Drive Mode ........................................................................\
..................................... 6-37

Forward Collision – Avoidance Assist (FCA) - Sensor Fusion .................. 6-40System Setting and Activation ........................................................................\
..... 6-40
FCA Warning Message and Brake Control ............................................................ 6-42
FCA Sensor ........................................................................\
..................................... 6-45
System Malfunction ........................................................................\
....................... 6-47
Limitations of the System ........................................................................\
..............6-48
Forward Collision-Avoidance Assist - Junction Turning ...................................... 6-55
Lane Keeping Assist (LKA) ........................................................................\
...6-59LKA Operation ........................................................................\
................................ 6-61
LKA System Function Change ........................................................................\
....... 6-61
Warning Light and Message ........................................................................\
..........6-64
Limitations of the System ........................................................................\
.............. 6-65
Blind-Spot Collision Warning (BCW) /
Blind-Spot Collision-Avoidance Assist (BCA) ............................................. 6-67
System Description ........................................................................\
........................ 6-67
System Setting and Activation ........................................................................\
......6-68
Warning and System Control ........................................................................\
......... 6-70
Detecting Sensors (Front view camera and Rear corner radar) .......................... 6-72
Limitations of the System ........................................................................\
.............. 6-75
Driver Attention Warning (DAW) ................................................................ 6-79System Setting and Operation ........................................................................\
...... 6-79
Resetting the System ........................................................................\
..................... 6-81
System Standby ........................................................................\
.............................. 6-82
System Malfunction ........................................................................\
....................... 6-82
Leading Vehicle Departure Alert ........................................................................\
...6-84
Blind-Spot View Monitor (BVM) .................................................................. 6-87
Smart cruise control (SCC) ........................................................................\
6-88
Smart Cruise Control Switch ........................................................................\
.........6-89
To Convert to Cruise Control Mode ......................................................................6-\
89
Smart Cruise Control Speed ........................................................................\
......... 6-90
Smart Cruise Control Vehicle-to-Vehicle Distance ..............................................6-96
Limitations of the System ........................................................................\
............. 6-101
6

06
6-33
The Idle Stop and Go (ISG) system
automatically and temporarily shuts
down the engine when the vehicle
is stopped and idling to improve fuel
efficiency and reduce exhaust gas
emissions. (i.e. red stop light, stop sign,
and traffic jam).
The engine is automatically started upon
satisfying the starting conditions.
The ISG system is always active, when
the engine is running.
Information
When the engine is automatically started
by the ISG system, some warning
lights (i.e. ABS, ESC, ESC OFF, EPS,
and parking brake warning light) may
illuminate for a few seconds due to the
low battery voltage. However, it does
not indicate a malfunction with the ISG
system.
To Activate the ISG System
Prerequisite for activation
The ISG system operates in the following
situations.
• The driver's seatbelt is fastened
• The driver's door and hood are closed
• The brake vacuum pressure is adequate
• The battery sensor is activated and the battery is sufficiently charged
• Outside temperature is not too low or too high
• The vehicle is driven over a constant speed and stops
• The climate control system satisfies the conditions
• The vehicle is sufficiently warmed up
• The incline is gradual
• The steering wheel is turned less than 180 degrees and then the vehicle
stops
Information
• The ISG system is not
activated, when the
prerequisites to activate
the ISG system are
unsatisfied. In this case,
the ISG OFF button indicator
illuminates, and the auto stop indicator
(
) illuminates in yellow on the
instrument cluster.
• When the above indicator remains
illuminated on the instrument cluster,
have the IGS system checked by an
authorized HYUNDAI dealer.
Auto stop
To stop the engine in idle stop mode
1. Decrease the vehicle speed to 0 mph.
2. Depress the brake pedal with the shift
button in D (Drive) or N (Neutral).
The auto stop indicator (
) illuminates
in green on the instrument cluster, when
the engine stops.
Information
The driving speed must reach at least 3
mph (5 km/h) after an idle stop to stop the
engine in idle stop mode again.
In auto stop mode, when the driver
opens the hood, the ISG system will be
deactivated.
ISG (IDLE STOP AND GO) SYSTEM (IF EQUIPPED)

06
6-35
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The auto start is temporarily deactivated
in the following situations.
When the gear is shifted from N (Neutral)
t
o R (Reverse), D (Drive) or Manual
shift mode without the brake pedal
depressed. A message "Press brake pedal
for Auto Start" will appear on the LCD
display. To activate auto start, depress
the brake pedal.
To Deactivate the ISG System
• Press the ISG OFF button to deactivate the ISG system. Then, the
ISG OFF button indicator illuminates.
• Press the ISG OFF button again to reactivate the ISG system. Then, the
ISG OFF button indicator turns OFF.
ISG System Malfunction
The ISG system may not operate:
When there is a malfunction with the ISG
sensor
s or the ISG system.
The followings occur, when there is a
malfunction with the ISG system:
• The auto stop indicator (
) will blink
in yellow on the instrument cluster.
• The light on the ISG OFF button will illuminate.
Information
• When you cannot turn OFF the ISG
OFF button indicator by pressing
the ISG OFF button, or when the
malfunction with the ISG system
persists, contact an authorized
HYUNDAI dealer.
• You can turn off the ISG OFF button
indicator by driving over 50 mph (80
km/h) for up to 2 hours with the fan
speed below the 2nd position. If the
ISG OFF button indicator remains
ON, contact an authorized HYUNDAI
dealer.
WARNING
When the engine is in auto stop mode,
the engine may restart. Before leaving
the vehicle or checking the engine
compartment, stop the engine placing
the ignition switch to the LOCK/OFF
position or remove the ignition key.

While Driving6-36
Battery Sensor Deactivation
ODN8A069204ODN8A069204
[A] : Battery sensor
The battery sensor is deactivated, when
the battery is disconnected from the
negative pole for maintenance purpose.
In this case, the ISG system is limitedly
operated due to the battery sensor
deactivation. Thus, the driver needs
to take the following procedures to
reactivate the battery sensor after
disconnecting the battery.
Prerequisites to reactivate the
battery sensor
Switch "ON" and "OFF" the ignition one
time. Park the vehicle for a minimum of 4
hours with the hood and all doors closed.
Pay extreme caution not to connect any
accessories (i.e. navigation and black
box) to the vehicle with the engine in the
OFF status. If not, the battery sensor may
not be reactivated.
Information
The ISG system may not operate in the
following situations. - There is a malfunction with the ISG
system.
- The battery is weak.
- The brake vacuum pressure is low.
If this occurs, have the ISG system
checked by an authorized HYUNDAI
dealer.
NOTICE
• Use only a genuine HYUNDAI
Absorbent Glass Mat (AGM) battery
for replacement. If not, the ISG
system may not operate normally.
• Do not recharge the Absorbent Glass
Mat (AGM) battery with a general
battery charger. It may damage or
explode the Absorbent Glass Mat
(AGM) battery.
• Do not remove the battery cap. The
battery electrolyte, which is harmful
to the human body, may leak out.

06
6-47
System Malfunction
Type AType AType BType B
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Check Forward Collision Avoidance Assist
system
When FCA is not working properly, FCA
w
arning light () will illuminate and the
warning message will appear for a few
seconds. After the message disappears,
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. Both FCA warning light and
warning message will disappear once the
ESC warning light issue is resolved.
WARNING
• FCA is only a supplemental system
for the driver's convenience. The
driver should hold the responsibility
to control 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 conditions, FCA
system may activate unintentionally.
This initial warning message appears
on the LCD display with a warning
chime.
Also due to sensing limitations, in
certain situations, the front radar
sensor or camera recognition
system may not detect the vehicle,
pedestrian or cyclist (if equipped)
ahead. FCA system may not activate
and the warning message may not be
displayed.
• Even if there is any problem with
the brake control function of FCA
system, the vehicle’s basic braking
performance will operate normally.
However, brake control function for
avoiding collision will not activate.

While Driving6-48
• 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 during
braking and the vehicle may stop
suddenly shifting loose objects
toward the passengers. Always keep
loose objects secured and fasten the
seat belt.
• FCA system may not activate if the
driver applies the brake pedal to
avoid collision.
• 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.
• FCA system operates only when the
system detect vehicles, pedestrian or
cyclist in front of the vehicle.
• FCA system may not activate
according to road conditions,
inclement weather, driving
conditions or traffic conditions.
• FCA system may not work for all
vehicles, passengers or cyclists. 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.
• 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 vertically 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 maintain a
safe braking distance, and if necessary,
depress the brake pedal to reduce the
driving speed in order to maintain a
safe distance or to stop the vehicle.
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 radar signals
and camera recognition 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, pedestrian or cyclist
ahead. In these cases, FCA system may
not operate normally. The driver must
pay careful attention in the following
situations where FCA operation may be
limited.

While Driving6-50
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• 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 radar sensor
recognition system may not detect the
vehicle, pedestrian 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 necessary,
depress the brake pedal to reduce
your driving speed in order to
maintain a safe distance.