I have a touch screen audio/control system in my Ram Laramie. I have found that when the skin on my fingers is very dry, the touch screen sometimes has trouble reacting to a touch. It seems to do fine during more humid weather. I've always wondered if the moisture in your skin, or lack there of, has something to do with the lack of sensitivity being experienced by the touch screen.
Days camping (2015)----88 days
Days camping (2016) ---110 days
2016 Wildcat MAXX 28RKX (33' TT), 2007 13' Scamp
2015 Ram Laramie Hemi
30 years RV'ing
12 different RV's