Hi, I have a 2014 transit connect xlt wagon. I couldn't get the back heat to work. I read somewhere else (I think it was a discussion about 2015 version) that the temperature in the front has to be dialed all the way to high before the rear heat will be activated. So I tried this. I turned the front temp all the way up and the back vents off, turned the rear fan speed on high and turned the rear temp to high/feet. After this if you put your hand under the seats after about 10 minutes there will be heat coming out near the feet under the seats. The best I can tell is this rear climate control is not really independent of the front. I guess the engineering idea is that if its cold the second row people won't end up getting heat as well as the front, so there is a small electric foot heater to add some accessory heat. Also the side vents do get heat also, but best I can tell the heat is from the front heater and the blower just helps move it through some more. I really don't know if my explanation is correct, but after reading different sites and experimenting with the vehicle, this seems to be how its working. I would try cranking the front heat temperature and then turning on the back to see if you get any heat at all, that's the only way I could. If somebody else has different information please share. At one site, someone said their 2015 owners manual said you had to crank the front temp all the way up before the electric rear accessory heater would be activated. What's odd to me is, why doesn't some Ford engineer just explain this. You have to buy a vehicle and then experiment with it and research it to figure out how it works.