Hello, my 2019 lt with nav, the sync started getting slower and s l o w e r until today when it would not do anything. The nav would not talk in complete sentences, and I could not get any audio today at all. So I did a master reset ( it had updated to 3.4 on its own many months ago via wifi) and the unit just went completely black for 15 minutes or so, All I could get was some radio static, like it was on AM or something...
Any way, I got home recycled it again, and it started showing signs of life! Thought for sure a dealer stay was in the works.
It looks different on sirius stations now, so I wonder if some updates happened that were delayed? Is it only going to do it once? Anyone have behavior like this? No longer seems slow either. Weird, how a reset actually fixed it (?) and that it had to stay black screened while Indrove around for 15 minutes.