WARNING: This page is about a different car, the 2022 Genesis G90. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect the negative (-) battery terminal.
Remove the hole plug (A).
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After loosening the mounting bolt, then remove the door lock (A).
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Remove the door outside handle (A) by sliding it rearward.
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Disconnect the door outside handle connector (A).
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Be sure to install the outside handle pad (A) onto between the outside handle and the door panel.
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Make sure the connector is connected properly.
Make sure the door locks/unlocks and opens/closes properly.