I have several issues and will gladly take any helpful hints.

Issue 1. My instruments stopped working. HUD still works. I read various posts about grounds and cables disconnecting from the back of the panel, etc. I checked all that. Also the check engine light functions as expected in the panel. Will that still work if you have a ground problem? I am concerned the panel died. It drives just fine.

Issue 2. The day I had arranged to work on issue 1 I saw 2 new bigger issues. When I pressed the button to start sometimes everything electrical died in car. No lights, doors didn’t work, nothing. The only way to revive it was to disconnect the battery.

Issue 3. When I pressed the button to start everything electrical would shut down, then 10 seconds later come back to life with no action on my part.

So when I go to start my car and press the button one of 3 things happens:
1-it starts and runs great, but I have no instruments
2-it loses electrical for 10 seconds, then things like the radio and hvac come back and work just fine
3-it loses everything electrical, completely dead, until I disconnect the battery

This could be several different issues for sure. I am open to any ideas on where to start. I am hoping that someone has seen something similar and can save me some cycles.

If I put this in the wrong forum I will move it, just let me know.

Thank you,
Drew