my '13 does this too. i have to go all the way to defrost and then carefully come back to the one that i want. too lazy to deal with the dealer, especially as i know they won't actually fix it.Sebastian mine does the same thing, for some reason if I switch back to defrost then to floor sometimes it changes, I will have to take to dealer which I hate because they will take all day at least.
Only worked for me for a day. I think its a bad capacitor. Only temp fix is to put the vent selector switch all the way to the right then back again.I hate to revive an old thread, but it's relevant to my issue. I've searched for about a half hour and this thread pertains to the exact issue that I'm experiencing.
Did simply disconnecting the battery fix the issue long-term?
I have a 2013 Sport that I purchased in May 2016, and have just needed the heater the last couple of days. I'm having the same issue where the knob is selected to blow out the floor vents, but the air comes out the dash vents. I turn the knob to defrost for a second or two then back to floor and it works like it should. I park the vehicle with the knob still on floor, then when I get back in and start it up, air blows out the dash vents. Turn to defrost and back to floor, and it works. That can be annoying.
I have a little over a month on my warranty, and wanted to verify that disconnecting the battery indeed remedied the issue. Otherwise, a trip to the dealer is forthcoming (while there's still time).
You bring up a good point. I had my JK in for routine maintenance mid-October and they flashed the computer with an update. Then it turns cold and I notice the situation with the vent selector.mine does the same exact thing and I'm way out of the 36 mile warranty ......could of been when they reprogrammed it awhile ago? very annoying