My C7 3LT Coupe had a problem with the driver's seat cushion trim coming loose from the seat frame.  If you are a DIY type of person you can fix or replace this yourself. 

I understand a replacement part is relatively inexpensive and can't be too hard to replace but I also understand this is a poor design and prone to breakage again.  This fix is/should be permanent.    See link below.  

C7 Seat Fix.docx