A door window may move slowly or stop in mid travel due to a failing power window motor. The affected window may start working again after the motor cools off. Replacing the faulty window motor will commonly correct this concern.
Car Problem Reports
Pontiac Bonneville Power Window Motors May Fail From Overheating
Pontiac Bonneville Problem
Average Mileage: 76,500 mi (62,000 mi - 91,000 mi)
Visitor, 1991 Pontiac Bonneville, 91,000 mi
drivers window rolls down but won't go back up till the motor cools off. last time i rolled it down it took three days to roll all the way back up