I spilled a Diet Coke on my window control buttons and got it almost instantly cleaned up. But enough leaked into the driver door window that I had to pay to have it cleaned, and it wasn't perfect. So I started, every now and then, slowly cleaning the button with those little pre-soaked alcohol pads. Mind you, they are not soaked but they've got some liquid in them. And for some reason, the tiny bit of alcohol that is getting into the button must be breaking down the Diet Coke, since the button is now working -- better. Almost the same as it was pre-disaster. If you spilled something consider this. The pads are sold at the drug store near the pharmacy.