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If it makes you feel any better I checked my Nav and low and behold mine defaults to 15 as well. I haven't really messed with it since upgrading to 40.1 and updating the maps to 2023 so never realized the volume issue. Only seems to affect the Nav volume. I use Android Auto Waze for daily commute due to the notifications and routing options. Built in Nav is better for when we go on camping trips as the routes are more truck friendly. Annoying,but doubt there's a fox out there. Doesn't just affect Ram trucks, it's a Uconnect issue across all Chrysler products.
And the nav volume stuck at (15) issue persists on the my 22 5th Gen with 12" radio... You would think they could have fixed this by now but it is Stellantis!
I never got ORC on my 2018, from V22 to V40, but I've had the volume "save" since I installed I think V39, from V28.
I did have some issues with 28.3 and the screen "blanking" or shutting down now that I think about it. Thought multiple times I had bricked the radio, until I upgraded to 39.2 (I think?) before 40.1 was "known", or released.
See my post and @SitKneelBend 's info here
Pretty sure the service bulletins said that it had to be updated incrementally, with a minimum of 22.64. I updated to 28.3 and then 40.1 without issue. Only weird thing is when I am using XM radio and truck shuts off it defaults to 2nd set of presets 7 through 12 instead Of 1 through 6. Doesn't affect use, just my OCD. Thought about reflashing,but then something could stop working.
