2005 Chrysler Crossfire wipers, windshield & visibility problems

Tl*the contact owns a 2005 chrysler crossfire. The contact stated that the rear windshield became detached from the vehicle while driving 40 MPH. She pulled the vehicle over and noticed that the window had shattered into pieces. She called the dealer and manufacturer, but no one had the parts available due to a back order. The contact believes that this is a manufacturer defect and a very serious issue. She further stated that a recall should be issued or the parts should be available.

The back window in my 2005 chrysler crossfire fell out and I can not get chrysler to acknowledge that they have a liability or responsibility to fix the problem.