The AC started stopped blowing cold air when the temperature got over 80 (might have been not so cold below that but it wasn't noticeable). Made an appointment at the dealership and then went to this site to see other's complaints. I printed out the list of complaints and owner's solutions and took it with me. The service advisor at Clay Cooley Hyundai in Rockwall, Texas, said not to trust thing on the internet and wouldn't even look at the sheet (not a good sign). Said it was probably the freon levels and that it would be a $99 service charge it that was it.

After four hours in the waiting room he came out to say it was the compressor. The good news is that is covered under warranty, the bad news, it had to be order from Canada. Another owner on this site said they replaced his compressor but it didn't fix the issue. I am hopeful that mine really is the compressor. It's been two days now and I am waiting on the call. I will update.

Update from Jun 19, 2017: OK, they replaced the compressor and it seems to be working fine. No charge under warranty.

A/C warm on passenger side (dual climate control)

Shortly after purchasing the car brand new we had a heat wave and I noticed that the air on the passenger side was blowing out MUCH warmer than on the passenger side. Took it in for service and they said they had to bleed and recharge the freon, which appeared to fix the issue (air was ice cold on both sides afterwards). Fast forward two months to another heat wave and now I notice the problem is back again, so obviously something else causing it or there is a freon leak somewhere. Really annoying issue!