Pete 389 weird electrical glitch?

Did it rain last night?

 

Most likely a module didn’t shutdown completely and when you unhooked the batteries it had no choice.

 

My 2015 389 Glider that I have owned since it was brand new had issues occasionally with the odometer section of that gauge cluster going out. It would always come back on after the truck was turned off and it reset itself. Only one time I can remember it also did what yours was doing with the door chime roughly a year or so ago. I don’t recall doing anything to correct it and it hasn’t done it again. That doesn’t help you fix the problem but maybe yours will just go away like mine seems to have done. If it had stayed on I would have had to find the problem.

 

I had an issue couple of years back on my 2014, the instrumental dash lights wouldn’t come on. Checked the fuses and all was good. I was told to cycle the key several times(10). I did and everything went back to normal.

 

I had exact thing happen to me on my 386 . Unhooked battery like u did and went away. Never happened again. I also had the odometer glitch like banker just mentioned. Same solution , unhook battery to reset it

 

Maybe another place to check is the cab grounds, specifically the one that grounds the cab to the engine block. On my 389 it goes to a lug near the starter.. I had a lot of weird glitches with the dash, a lot of weird symptoms that made it seem like computer was going our. Long story short after many hours of frustration, @Goodysnap pointed me in the direction of the cab grounds and that's wat it ended up being. Might be a good place to look if u keep having problems in the future