Thanks for the update. I was just in my dealer today and asked about the latest update. The 2018 is still not out, but I am hopeful it might be in soon.Hello, xxxxxxxx. This is Marcial from MnSoft Of America. Unfortunately, The map update for your vehicle will be released in 1-2 weeks. It is also Dealer installation only. Please visit your local Hyundai Dealership once the map update has been released. Thank you!
Good luck on getting an answer to the dealer-only install. If I were going to guess, I think the truth is that the car must remain on for 3 hours, and they probably learned early in the life of the car that most civilians bricked their nav systems by killing the battery and interrupting the installation.