Is it just your tach and speedo lights or also the display between them?!?!
I’m also having dash flickering in my ‘13 Ram Sport R/T 46k miles, my flickering started a couple months ago. To clarify, the “flickering” in my case is the computer display brightness is pulsing (not actually going all the way on and off), and it’s just the computer display between the tach and speedo, none of the other dash lights. This pulsing brightness happens day and night, whether the headlights are on or off, regardless of the brightness adjustment, and the speed of the pulsing changes (sometimes fast sometimes slower, but constant).
As to your Side Note: About a year ago I was having uconnect (8.4 non-nav unit) issues, it was constantly rebooting. After several calls to uconnect and pleading for an over the air update/refresh the problem went away. Something they did fixed the problem because I never took it to the dealership or did anything else myself.
Hope this helps and hope others chime in with dash lights issue, although it sounds like we have different lights that are flickering.
Keep us posted.
Thanks, CJ