1989 buick park avenue Cannot get power window

These are a pain to do so you will need to remove the small trim peice behind the inside door handle to get to a small screw holding the door trim on. Next retaining clips hold on the sides and bottom door trim. Some screws may be on the bottom too on some models. using an old tablr fork helps out by removing the center fork prongs which will be used as a pry bar to pry up on these clips. Once removed you can gain access to the switch. Some models will let you pry out the switch panel instead of removing the whole door trim. If the switch is mounted in a panel that is separate from the door trim it will come out that way separately