I feel your frustration..but the answer is no..You can't lube it...it won't solve anything at least. I'd take it to an independant mechanic shop to get it fixed if you dont want to go all the way to the dealer. Or you can order the part your self and change it out. There is an article on this site telling you how to do it...Other than that, I'm not sure what else you can do...(Oh and dont let people slam the door when they shut it, especially if the window is down) I've replaced 3 window regulators and once i finally figured out the door slamming thing I haven't had to replace any.