I truly hope there's a resolution to this problem for you guys. I bought a 2015 crewcab short box 5.3 June 15th. I had been back and forth to the dealer more times than I can remember and certainly more times than I've ever been collectively in my life, and I've been leasing and owning new vehicles for over 20 years.
I went to Dodge last week and traded my Silverado with 3400 miles in for a new 2015 Ram.. I had enough.. From June 15th up until last week I did nothing but go back and forth to the dealer or was on the phone with GM. I have no issue whatsoever with the Ram and am really, really happy with it.
I've worked in the automotive industry for decades. GM has always had their issues, and maybe in my older age I was being hopeful, but nothing has changed. They still deliver troubled products as is blatantly apparent. GM should be ashamed of themselves to be quite frank.
I wish you all the best with this nonsense. Hopefully GM does the right thing eventually.