My 19" had similar issues and the dealership did two new file updates and it was marginally better, for a short time and then glitched again.
I then had a brand new head unit installed, not a factory reman... they uploaded the most recent software revision update and it worked great for a few moths and then bam... again it took a crap...
I had open care log ticket numbers with FCA, dealership case numbers, countless issues from day one of cutting out on my Sirius, screen going blank, not being able to connect my phone on Bluetooth, dropping calls while connected via Bluetooth, plus a few other issues. These all would come and go randomly.
I had enough, and as already wanting better sound and going to new Focal speakers all around, I then bit the bullet and bought a new Kenwood Excelon Reference double din head unit shortly afterwards and had it installed.
Now, no more issues and one hell of a better head unit that does everything, and more, that my old factory uconnect did.