2015 Hyundai Sonata Engine

5-38
Driving your vehicle
To release:
Press the accelerator pedal with the
shift lever in R (Reverse), D (Drive)
or Sports Mode, the Auto Hold will be
released automatically and the vehi-
cle will start to move. The indicator
changes from green to white.
To cancel:
1. Depress the brake pedal.
2. Press the [AUTO HOLD] switch.The AUTO HOLD indicator will
turn off.
Information
• The Auto Hold does not operatewhen:
- The driver's seat belt is unbuckledand the driver's door is opened
- The engine hood is opened
- The trunk is opened
- The shift lever is in P (Park)
- The EPB is applied
• For your safety, the Auto Hold auto- matically switches to EPB when:
- The driver's seat belt is unbuckledand the driver's door is opened
- The engine hood is opened with the shift lever in D (Drive)
- The trunk is opened with the shift lever in R (Reverse)
- The vehicle is in a standstill for more than 10 minutes
- The vehicle is standing on a steep slope
- The vehicle moved several times (Continued)
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To prevent, unexpected and
sudden vehicle movement,
ALWAYS press your foot on the
brake pedal to cancel the Auto
Hold before you:
- Drive downhill.
- Drive the vehicle in R (Reverse).
- Park the vehicle.
WARNING
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5-40
Driving your vehicle
Press brake pedal to deactivate
AUTO HOLD
If you did not apply the brake pedal
when you release the Auto Hold by
pressing the [AUTO HOLD] switch, a
warning will sound and a message
will appear.
AUTO HOLD conditions not met.
Close door, hood, trunk, and fasten
seatbelt
When you press the [AUTO HOLD]
switch, if the driver's door, engine
hood and trunk are not closed or the
driver's seat belt is not fastened, a
warning will sound and a message
will appear on the LCD display. In
that time, press the [AUTO HOLD]
button after closing the driver's door,
engine hood and trunk and fastening
the seat belt.
Anti-lock Brake System (ABS)
OLF044407NOLF044409N
An Anti-Lock Braking System
(ABS) or an Electronic Stability
Control (ESC) system will not
prevent accidents due to
improper or dangerous driving
maneuvers. Even though vehi-
cle control is improved during
emergency braking, always
maintain a safe distance
between you and objects ahead
of you. Vehicle speeds should
always be reduced during
extreme road conditions. The
braking distance for cars
equipped with ABS or ESC may
be longer than for those without
these systems in the following
road conditions.(Continued)
WARNING

5-42
Driving your vehicle
Information
When you jump start your vehicle
because of a drained battery, the ABS
warning light ( ) may turn on at the
same time. This happens because of
the low battery voltage. It does not
mean your ABS is malfunctioning.
Have the battery recharged before
driving the vehicle.
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If the ABS warning light ( ) is
on and stays on, you may have
a problem with the ABS. Your
power brakes will work normal-
ly. To reduce the risk of serious
injury or death, contact your
HYUNDAI dealer as soon as
possible.When you drive on a road hav-
ing poor traction, such as an icy
road, and apply your brakes
continuously, the ABS will be
active continuously and the
ABS warning light ( ) may
illuminate. Pull your car over to
a safe place and turn the engine
off.
Restart the engine. If the ABS
warning light is off, then your
ABS system is normal.
Otherwise, you may have a
problem with your ABS system.
Contact an authorized HYUNDAI
dealer as soon as possible.
CAUTIONWARNING

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
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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
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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

5-48
Driving your vehicle
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The drive mode may be selected
according to the driver’s preference
or road condition.
The system initializes to the NOR-
MAL mode (except for ECO mode)
after the engine has been turned off
and on.
Information
If there is a problem with the
Electronic Stability Control (ESC)
system, the drive mode will be in
NORMAL mode and may not change
to ECO mode or SPORT mode. The mode changes whenever the
DRIVE MODE switch is pressed.
When NORMAL mode is selected, it
is not displayed on the instrument
cluster.
The selected mode is displayed on
the instrument cluster.
ECO mode (Active ECO)
Active ECO helps improve
fuel efficiency by control-
ling certain engine and
transmission system
operating parameters.
Fuel efficiency depends on the dri-
ver's driving habit and road condi-
tion.
When the DRIVE MODE switch is pressed and the ECO mode is
selected, the ECO indicator
(green) will illuminate to show that
the Active ECO is operating.
When the Active ECO is activated, and the engine is turned off and on
it will maintain ECO mode.
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OLF054021N
NORMAL ECO SPORTECO

5-49
Driving your vehicle
5
When Active ECO is activated:
The acceleration response may beslightly reduced as the accelerator
pedal is depressed moderately.
The air conditioner performance may be limited.
The shift pattern of the automatic transmission may change.
The engine noise may get louder.
The above situations are normal
conditions when the Active ECO sys-
tem is activated to improve fuel effi-
ciency. Limitation of Active ECO opera-
tion:
If the following conditions occur while
Active ECO is operating, the system
operation is limited even though
there is no change in the ECO indi-
cator.
When the coolant temperature is
low:
The system will be limited until
engine performance becomes nor-
mal.
When driving up a hill: The system will be limited to gain
power when driving uphill because
engine torque is restricted.
When using the automatic trans- mission Sports mode:
The system will be limited accord-
ing to the shift location.SPORT mode
SPORT mode focuses ondynamic driving by auto-
matically controlling the
steering wheel, engine
and transmission system.
When the DRIVE MODE switch is pressed and the SPORT mode is
selected, the SPORT indicator
(yellow) will illuminate.
When the SPORT mode is activat- ed, and the engine is turned off
and on it will change to NORMAL
mode. To turn on the SPORT
mode, press the DRIVE MODE
switch again.
If the system is activated: - After accelerating and releasingthe accelerator pedal, the gear
and engine speed RPM may not
drop as soon as in NORMAL
mode.
- Up-shifting is delayed.
Information
In SPORT mode, the fuel efficiency
may decrease.
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SPORT