"Smart Glass" protects the top weather strips and window seals in the 2011 Chrysler 200 Convertible. The system works by lowering the windows slightly whenever the convertible top is lowered or when the doors are opened or closed. When the door handle is pulled, the 200 Convertible's Smart Glass lowers the window 0.4 inches, which allows the door to open without resistance or damage to the window or top weather strips. The window remains in this slightly lower position until the door is closed, at which point the glass rises completely to fully close the gap.