Apparently there is a flap above the rear window, it's black. my truck light came on. i thought it was just my sensor going haywire. i got out of my car and there is this flap that is up and i can't get it to go down. there is not button or lever. what is it and how do i get it down?!?!?

Cars & Trucks - Volkswagen - Beetle - 2000 Volkswagen Beetle