Window Regulator Sticking

Remove your window crank, arm rest and door card, grab a can of WD40 with the red straw stuck in the nozzle. Spray all the linkages all the rails and rail rollers, taking note if the rollers are missing or damaged. Roll the window up and down a few, repeat if needed... WD dries up quickly, I would suggest using a LITE grease on the rollers and regulator.