I have a 2012 Chevy Equinox. The driver's side window doesn't roll up very well when it is cold out. Do I have to replace the regulator, or can I lube things up? The other problem I have is the traction button is stuck. How do I unstick it? Everything else works fine. It hasn't been paid off yet. I have another 2400 left, so it is still under warranty, but the dealer says the window and the button are not covered.