If anyone has this happen DON'T do as I did and push and pull, trying to see what happened. You only pull the plugs out of the sockets to the little motors. You have just made a simple job into a difficult, frustrating one. All you need do is to put the glass and it's assembly back where it should be and gently press and the three plastic clips will re-engage. Two seconds versus two hours. Time for a beer to relieve my frustration.