Hyundai Sonata Hybrid 2021 Owner's Manual page 279

While Driving
AUTO HOLD turning Off!
Press brake pedal
When the conversion from Auto Hold to
EPB is not working properly a warning
will sound and a message will appear.
Parking brake automatically engaged
If the EPB is applied while Auto Hold is
activated, a warning will sound and a
message will appear.
6-22
EPB malfunction indicator
OIK057079N
This warning light illuminates if the
ignition switch is set to the ON position
and goes off in approximately 3 seconds
if the system is operating normally.
If the EPB malfunction indicator
remains on, comes on while driving, or
does not come on when the ignition
switch is changed to the ON position,
this indicates that the EPB may have
malfunctioned.
If this occurs, have the system checked
by an authorized HYUNDAI dealer.
The EPB malfunction indicator may
illuminate when the ESC indicator comes
on to indicate that the ESC is not working
properly, but it does not indicate a
OIK057077N
malfunction of the EPB.
ODN8069014