If you've noticed your power windows have been moving more sluggish lately, it may be time to replace one or more of your window motors.  Your Buick window motor is the mechanism responsible for the up and down movements of the windows.  Before power windows came about, all vehicles had manual windows that were rolled down with handles.  The only thing you had to worry about was the windows coming off track back then.  Now days, the power window motors can burn out.  You can be stuck with your windows in the down position and not be able to protect your vehicle from the elements or from vandalism.  If you're stuck in the up position, it could get very uncomfortable in your vehicle.  Installing new window motors before the old ones wear down completely could save you a lot of stress and aggravation.  Installation is very easy and can be done by quickly.