Hyundai Sonata LF Owner's Manual page 496

Indicator lights
■ ESC indicator light (blinks)
■ ESC OFF indicator light (comes on)
When the ignition switch is pressed
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 we recommend that
the vehicle be checked by an author-
ized HYUNDAI dealer as soon as
possible.
The ESC OFF indicator light comes
on when the ESC is turned off with
the button.
WARNING
When the ESC is blinking, this
indicates the ESC is active:
Drive slowly and
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.
NOTICE
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
NEVER
the ESC OFF button while driving on
a flat road surface.
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