Hyundai ATC41GWAN User Manual page 210

Updating the system software
and map
You can update the navigation map and infotainment system.
Please visit your local dealership to update your system.
A Any changes made after the update file is created are not
reflected in the map. As a result, certain roads, buildings, and
speed limits on the map may not be up to date.
A Depending on the total data amount, an update may take
several minutes.
A Do not turn off the system or remove the storage device while
the update is in progress. When power supply is cut off or the
storage device is removed from the system, it may damage
the data or cause a system malfunction.
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