Screen goes blank

21 Elite, 45k.

On two separate occasions I have been driving and the entire dashboard and infotainment center go blank. once about a month ago, car was still driving fine. infotainment and center dash came back after a few seconds.

In between that had a flashing check engine light which resulted in a new battery being installed at the dealership while on vacation.

2 days ago after 10 minutes of driving pulling to a stop the dash and infotainment display go blank and the car dies. completely shuts off car still in drive. luckily I was able to stop safely. Put the car in park and restarted. have not had anything happen since then.

Anyone else have similar stories? experiences? solutions?

I know if I take it to the dealer they're going to tell me they can't replicate the problem and it'll be a waste of time and money. I'd like to be able to go in something a little more confident in a pre-diagnosis from someone else who has experience this.