1996 Buick Century Q&A
1996 Buick Century Question: Replace electrical motor on window
all the time - Visitor
Power window motors and / or regulators can indeed fail. To minimize failure, use only original GM parts. Clean and lubricate glass runs on all windows - these channels get dry and have debris build up that causes the windows to become sluggish or even bind...causing abnormal drag and load on the motors. - DaveJHM
One or more power window switch may fail. The affected window may work intermittently before failing completely.