The buttons on the audio/sat-nav system in my 2015 Hyundai Tucson are suddenly not working. I can't select maps, navigation or system options etc. The USB stick plays music and it seems to function correctly. The radio can be played when selected, but the screen doesn't change from the USB screen so I'm unable to change channels. Are you able to advise what the problem might be?
This has cropped up before in relatively new Hyundais and seems to be a software – rather than a hardware – problem. The solution is to take the car to a Hyundai dealer who will be able to reload the unit’s software and all should be well.
I’ve also heard of the odd case where the entire head unit was replaced by Hyundai, but reloading the software (which should take only a few minutes) seems to be the most common fix.