How well do these work if I have wet hands? Like, if it's rainy or snowy and i get in the car, will I be able to control the temperature? Turn on the defroster?

How well do these work if I have wet hands? Like, if it's rainy or snowy and i get in the car, will I be able to control the temperature? Turn on the defroster? Every smart phone I've owned would be anywhere betw 0% and 50% chance of it working.