2015 Hyundai Sonata warning light

5-43
Driving your vehicle
5
Electronic Stability Control
(ESC)
The Electronic Stability Control
(ESC) system helps to stabilize the
vehicle during cornering maneuvers.
ESC checks where you are steering
and where the vehicle is actually
going. ESC applies braking pressure
to any one of the vehicle’s brakes
and intervenes in the engine man-
agement system to assist the driver
with keeping the vehicle on the
intended path. It is not a substitute
for safe driving practices. Always
adjust your speed and driving to the
road conditions.
ESC operation
ESC ON condition
When the ignition switch is in the ON
position, the ESC and the ESC OFF
indicator lights illuminate for approxi-
mately three seconds and goes off,
then the ESC is turned on.
When operating
When the ESC is in opera-
tion, the ESC indicator light
blinks:
When you apply your brakes under conditions which may lock the
wheels, you may hear sounds from
the brakes, or feel a corresponding
sensation in the brake pedal. This
is normal and it means your ESC is
active.
When the ESC activates, the engine may not respond to the
accelerator as it does under rou-
tine conditions.
Never drive too fast for the road
conditions or too quickly when
cornering. The ESC system will
not prevent accidents.
Excessive speed in turns, abrupt
maneuvers, and hydroplaning
on wet surfaces can result in
severe accidents.
WARNING
OLF054448

5-44
Driving your vehicle
If the Cruise Control was in use when the ESC activates, the
Cruise Control automatically disen-
gages. The Cruise Control can be
reengaged when the road condi-
tions allow. See “Cruise Control
System” later in this chapter. (if
equipped)
When moving out of the mud or driving on a slippery road, the
engine rpm (revolutions per
minute) may not increase even if
you press the accelerator pedal
deeply. This is to maintain the sta-
bility and traction of the vehicle and
does not indicate a problem.
ESC OFF condition
To cancel ESC operation :
State 1
Press the ESC OFF button shortly
(ESC OFF indicator light and mes-
sage illuminates). At this state, the
engine control function does not
operate. In other words, the traction
control function does not operate but
only the brake control function oper-
ates.
Press the ESC OFF button for more
than 3 seconds. ESC OFF indicator
light and message illuminates with
an ESC OFF warning chime. At this
state, the engine control function and
brake control function does not oper-
ate. In other words, the vehicle sta-
bility control function does not oper-
ate any more.
If the ignition switch is placed to the
LOCK/OFF position when ESC is off,
ESC remains off. Upon restarting the
engine, the ESC will automatically
turn on again.
■Type A■Type B■Type A■Type B
OLF054439N/OLF054101NOLF054438N/OLF054100N

5-45
Driving your vehicle
5
Indicator lights
When the ignition switch is placed to
the ON position, the ESC indicator
light illuminates, then goes off if the
ESC system is operating normally.
The ESC indicator light blinks when-
ever the ESC is operating.
If ESC indicator light stays on, your
vehicle may have a malfunction with
the ESC system. When this warning
light illuminates have your vehicle
checked by an authorized HYUNDAI
dealer as soon as possible.The ESC OFF indicator light comes
on when the ESC is turned off.
Driving with varying tire or wheel
sizes may cause the ESC system
to malfunction. When replacing
tires, make sure they are the same
size as your original tires for this
vehicle.
ESC OFF usage
When Driving
The ESC OFF mode should only be
used briefly to help free the vehicle if
stuck in snow or mud by temporarily
stopping operation of the ESC to
maintain wheel torque.
To turn ESC off while driving, press
the ESC OFF button while driving on
a flat road surface.
NOTICE
When the ESC is blinking, this
indicates the ESC is active:
Drive slowly and NEVER
attempt to accelerate. NEVER
turn the ESC off while the ESC
indicator light is blinking or you
may lose control of the vehicle
resulting in an accident.
WARNING ■
ESC indicator light (blinks)
■ ESC OFF indicator light (comes on)

5-46
Driving your vehicle
To prevent damage to the trans-
mission:
Do not allow wheel(s) of one axle to spin excessively while
the ESC, ABS, and brake warn-
ing lights are displayed. The
repairs would not be covered by
the vehicle warranty. Reduce
engine power and do not spin
the wheel(s) excessively while
these lights are displayed.
When operating the vehicle on a dynamometer, ensure the ESC is
turned off (ESC OFF light illumi-
nated).
Information
Turning the ESC off does not affect
ABS or standard brake system opera-
tion.
Hill-Start Assist Control (HAC)
The Hill-Start Assist Control (HAC)
prevents the vehicle from rolling
backwards when starting a vehicle
from a stop on a hill. The system
operates the brakes automatically for
approximately 2 seconds and releas-
es the brake when the accelerator
pedal is depressed or after 2 sec-
onds. The HAC does not operate when
the shift lever is in P (Park) or N
(Neutral)
The HAC activates even though the ESC (Electronic Stability
Control) is off but does not acti-
vate when the ESC has malfunc-
tioned.
NOTICE
i
NOTICE
Always be ready to depress the
accelerator pedal when starting
off on a incline. The HAC acti-
vates only for approximately 2
seconds.
WARNING

5-47
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.
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 P (Park)
position, then apply the parking
brake, and place the ignition
switch in the OFF position.
Vehicles with the parking brake
not fully engaged are at risk for
moving inadvertently and caus-
ing injury to yourself or others.
WARNING

5-50
Driving your vehicle
Cruise Control Operation
1. CRUISE indicator
2. SET indicator
The Cruise Control system allows
you to drive at speeds above 20 mph
(30 km/h) without depressing the
accelerator pedal.
To set Cruise Control speed
1. Push the CRUISE button on thesteering wheel to turn the system
on. The CRUISE indicator will illu-
minate.
2. Accelerate to the desired speed, which must be more than 20 mph
(30 km/h).
C CR
R U
U I
IS
S E
E
C
C O
O N
NT
TR
R O
O L
L
(
( I
IF
F
E
E Q
Q U
UI
IP
P P
PE
ED
D )
)

OLF054040
Take the following precautions:
If the Cruise Control is left on,
(CRUISE indicator light in the
instrument cluster illuminat-
ed) the Cruise Control can be
activated unintentionally.
Keep the Cruise Control sys-
tem off (CRUISE indicator light
OFF) when the Cruise Control
is not in use, to avoid inadver-
tently setting a speed.
Use the Cruise Control system
only when traveling on open
highways in good weather.
Do not use the Cruise Control
when it may not be safe to
keep the vehicle at a constant
speed:
- Driving in heavy or varying
speed traffic.
- On slippery (rainy, icy or snow covered) roads.
- Hilly or winding roads.
- Very windy areas.
WARNING
OLF054041

5-54
Driving your vehicle
➀ Cruise Indicator
➁ Set Speed
➂ Vehicle-to-Vehicle Distance
The Smart Cruise Control System
allows you to program the vehicle to
maintain constant speed and dis-
tance detecting the vehicle ahead
without depressing the accelerator
pedal.
S S M
M A
AR
RT
T
C
C R
R U
U I
IS
S E
E
C
C O
O N
NT
TR
R O
O L
L
S
S Y
Y S
ST
T E
EM
M
(
( I
IF
F
E
E Q
Q U
UI
IP
P P
PE
ED
D )
)
OLF054430N
For your safety, please read the
owner's manual before using
the Smart Cruise Control sys-
tem.
WARNING
The Smart Cruise Control
System is not a substitute for
safe driving practices, but a
convenience function only. It is
the responsibility of the driver
to always check the speed and
distance to the vehicle ahead.
WARNING
Take the following precautions:
If the Smart Cruise Control is
left on, (CRUISE indicator
light in the instrument cluster
is illuminated) the Smart
Cruise Control can be activat-
ed unintentionally. Keep the
Smart Cruise Control System
off (CRUISE indicator light
OFF) when the Smart Cruise
Control is not in use, to avoid
inadvertently setting a speed.
Use the Smart Cruise Control
System only when traveling
on open highways in good
weather.
Do not use the Smart Cruise
Control when it may not be
safe to keep the vehicle at a
constant speed:
- Driving in heavy or varying
speed traffic.
- On slippery (rainy, icy or snow covered) roads.
- Hilly or winding roads.
- Very windy areas.
WARNING

5-56
Driving your vehicle
1.Turn the Smart Cruise Control System on (the cruise indicator
light will be on but the system will
not be activated).
2.Push and hold the Vehicle-to- Vehicle Distance button for more
than 2 seconds.
3.Choose between "Smart Cruise Control (SCC) Mode" and "Cruise
Control (CC) Mode".
When the system is canceled using
the CRUISE button or the CRUISE
button is used after the engine is
turned on, the SCC Mode will turn
on.
Smart Cruise Control Speed
To set Smart Cruise Control speed
1. Push the CRUISE button on the
steering wheel to turn the system
on. The CRUISE indicator will illu-
minate.
2. Accelerate to the desired speed. The Smart Cruise Control speedcan be set as follows:
km/h): when there is no vehicle
in front
km/h): when there is a vehicle in
front 3. Push the lever down (SET-), and
release it at the desired speed.
The Set Speed and Vehicle-to-
Vehicle Distance on the LCD dis-
play will illuminate.
4. Release the accelerator pedal. The desired speed will automati-
cally be maintained.
If there is a vehicle in front of you, the
speed may decrease to maintain the
distance to the vehicle ahead.
On a steep grade, the vehicle may
slow down or speed up slightly while
going uphill or downhill.
OLF054042
OLF054041
When using the Cruise Control
Mode, you must manually
adjust the distance to other
vehicles by depressing the
accelerator or brake pedal. The
system does not automatically
adjust the distance to vehicles
in front of you.
WARNING