How do I turn off my "upscale" radio has NAV, seems to be just mute but not O F F, it is in an '18 Laramie THX
Have a good new year & all that!!

 

I don't think you can turn it off, the radio is central hub for alot of vehicle functions now. Heated/cooled seats, heated steering wheel, HVAC to name a few. Turning off the radio would also turn off these functions. I'm not sure when the screen off button came into play. My dads 5th gen has that, but my 14 does not, and the wife's 15 Durango does not both 8.4 uconnect radios, dads is big horn so more basic radio, maybe thats why.