Unfortunately, these cars have this problem frequently.
The contact switches have a habit of retaining moisture until they corrode. So the begin to fail one at a time.
When you roll the window down, one side of the switch is activated. Then on the way back up, the other side of the switch.
So they sometimes fail one side at a time, or both. And though this isn't the only possible cause, it's the most common one.
Thursday, September 9th, 2010 AT 5:42 AM