I should have documented the process because Hyundai's instructions are NOT clear.
In a nutshell:
Go to the MyHyundai site and log in. Find the Navigation and Multimedia Resources page.
It should tell you if you are eligible for an update. Their site sucks, BTW.
If you are eligible, there will be a link that'll take you to the download page. You'll download an applet that will THEN download the update for you (this is where it gave me an *.exe file that I was having issues with on my Mac and had to go find a PC). You have to run this applet/program in order for the files to be downloaded. There is no direct link to the files.
You need to insert your car's SD card into your computer for this to work at all. The applet you downloaded then downloads the necessary files, will reformat the SD card and then unpack all the files onto the SD card in whatever structure it requires. Now go mow the lawn, take a nap, watch a movie or something.
Once that is complete (2-3hrs), go to your car with the card, insert it, start the car up and follow the prompts. It'll tell you the navigation data is not authorized. Just follow the prompts and do not touch anything until it's done. It has to rebuild the nav base, too. Mine updated the maps, modem and GPS firmware as well. It will shut the system down twice - don't touch it! The syntax on their reboot warning messages make it unclear as to whether it's you who need to reboot the system or if it does it on its own. It does it on its own, don't touch it.
As an aside, I am fine with the Hyundai nav maps. I used Waze and will hang tight until it's on ACP, likely in September. Apple maps completely suck. I do like the lane discipline feature on Hyundai's maps, it's more like Google Maps. I'll stick to that for now until I can have full blown Waze on my nav screen.
