Stabilitrak and screen blackout

[Koolassnow]

Not sure if my post from earlier went through so here we go. I am having issues with my electrical system I think. The service stabilitrak notice comes on and my radio blacks out and my power steering stops when it happens. It only happens for a few seconds and happens sporadically. Initially, the dealership told me it was from water getting in a crack in my headlight. I bought a new one and installed but the problem still exists. Ive seen other posts from a few years ago where people are saying not even the GM EEs know. I think this is very dangerous and should be taken more seriously by the company. If anyone has updates on this please share if you will. I’ve been out of the loop for a while. Thanks!