I purchased a 2020 Ram limited 3 months ago. Shortly after I bought it I went to use the NAV system on the 12" screen and it froze up every few min for about 3 or 4 min . On and off kept freezing and coming back. Needless to say it makes the NAV system useless. I also noticed the phone drops every call after about 5 or 6 min of talking. I brought it to the dealer 4 times over the last few months and they could not fix the problem. Finally they told me there is a software update due out and I just have to wait. so I have a usless NAV system and I drop every bluetooth call after a few min and there is no fix yet - just waiting. I bought this truck in large part due to the screen and I wanted to use the NAV system a lot instead of my phone! Very disappointed in this system and RAM - I will give it a couple weeks and then I contacting a warrenty attorney -enlosed is a video I took of my system and exactly what it does (or does not do!)