Yesterday I drove to a shop to do tire rotation. I pressed the power window button to lower the window. It did not. I thought I got a problem. I tried to button again to raise the window. It moved a little. This gave me confidence that it is still working. After a few up and down presses, the window finally moved down. I think the rubber insulation is so tight that the power window did not have enough force to move it down the first time. My question, does any one have an idea how to fix this? I think some kind of lubricant will do. But which one?