I have done this to my car and I can tell you that if you already have AFLS then you don't need to repin anything.
If you want to enable the AFLS function, then you will need a new AFLS ECU that supports the LED headlights then go to Hyundai dealer and have them reprogram the ECU. I luckily have a friend who's a tech at a Hyundai dealer who hooked me up with the programming.
Here is the LED AFLS ECU part number that you need: 92170 3M600.
Here is the website where I bought it from:
http://www.tendown.co.kr/front/php/product.php?product_no=4870&main_cate_no=107&display_group=1
I don't know where else you could get this from because the LED headlights were only available in Korea from what I know.
Here are couple photos my friend & I took showing different modes of LED AFLS in the dark:
Normal City Driving Mode(If AFLS is not activated then your headlight will be always in this mode):
Highway Driving Mode ~60mph+ (LED intensity increased): notice how traffic signs are lit up brigther at the end of the road
Highway Driving Mode 80mph+ (LED intensity increased + projector angle increased): notice how you can see more of the road divider markings
Bending Light Off:
Bending Light On(notice the left side of the road is brighter compared to above photo):
Personally, I think it is definitely worth it to get the AFLS enabled with the Prada LED headlights.
On the streets, you can't really tell the difference, but on the highway it makes all the difference, because the intensity of the LEDs are increased and the angle of projection is raised at higher speeds.
Let me know if you run into any issues, but Genesis with AFLS already installed does not need to be repinned.
For other people who is planning on doing this, please keep in mind that I tried it on my 2013 Genesis so I don't know if it will work with earlier Genesis before the redesign.