Eight problems related to power window have been reported for the 1998 Buick Regal. The most recently reported issues are listed below.
The window regulators are defective on 3 windows. I had to get them shut permanently with tape. Unable to open all three windows - front driver and two back windows. The part alone is about $400 -visibility-power window devices and controls.
Power window regulator failed on left rear door in March 2002, and on the driver's door in March 2003. Both failures were of the plastic retainer for the cable end which holds the window up. Both windows dropped several inches. The rear window dropped while driving, causing driver distraction. In both cases the window could not be raised without removing the door upholstery panel. The only repair is to replace the entire window regulator assembly. List price for the driver's door parts only was $352.
Electric windows--front passenger can only be used via controls on driver's door and rear passenger side window came down and will not stay up--we cut off the power to it and it still creeps down. It lacks about 2-3" of being shut and has to be taped to keep air/water out. This happened last summer.
Rear window switch and seal failed. Yh.
Electrical power exterior rear view mirror failed, resulting in poor visibility due to adjustment problems. Mjs.
Left front door window motor makes noise during operation. Yh.
Window drive motors fail. All windows effected at least once. Some fail abruptly others creep down either with car running or parked. Cost per replacement is overly high. Ak.
Driver side power window won't go down.