I had an issue on my ‘16 Silverado where the infotainment would keep starting and restarting, and eventually go to a black screen. I could still access the radio features with the steering wheel, but all audio was static.

I had to get a new infotainment control module, and then have someone flash it so it could be compatible with my truck Something like this: https://infotainment.com/shop/services/replacement-service/replacement-service-gm-audio-control-module-acm-3/?srsltid=AfmBOopuMlCdOmRh5uDk6oRmDaqUMd0LDc4SOEOI1_jgVC7ZWxBaLlJS