It doesn't sound like a loose part inside. It sounds like two things rubbing together and squeaking. Anyone else have this problem and figure out how to fix it?

 

If you can take a look behind the glass and actually see the motor/parts that move the glass, I would use some WD-40 on the parts you can see. Try to move the mirror as far left or right as possible look in there, it's worth a shot. If not it's off to the dealer

 

I'll try that tonight.

 

I had the same problem. Replaced under warranty w/o any hassle.

 

Thanks. Now I just have to find time to drop it off.