My friend has an 07 Camelot and had the same problem today. We fixed it by turning off the battery disconnect switch back near the batteries then turning it back on. This reset something and they work beautifully now. Don't know if this will help you...
I currently tow a 2012 explorer limited and always put it in the accessory position just because the manual says to. I didn't want any problems with the warranty if something happened. I also had a charged line added since I did drain the battery a c...