Been driving it everywhere, no camera problems. Mine would usually go out after about 15 minutes once the Tahoe was started, either black screen or would freeze on a random scene. Would take about 15 minutes with the vehicle off to reset. Chevy tried a software download, next was a video controller, and lastly was the entire head unit. That is what fixed it.
4th time is the charm. Just got my Tahoe back with the camera problem fixed. Ended up being the head unit needing replaced. Been working great since back.