Kia Optima Hybrid 2020 Owner's Manual page 321

Driving your vehicle
System warning
When the conversion from Auto Hold
to EPB is not working properly, a
warning will sound and a message
will appear.
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✽ ✽ NOTICE
Depress the brake pedal when the
above message appears for the Auto
Hold and EPB may not activate.
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System warning
If the EPB is applied while Auto Hold
is activated because of an ESC
(Electronic Stability Control) signal, a
warning will sound and a message
will appear.
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