I have the same problem with 2015 Silverado and we had gone to get it looked at they said it was shorting out so they replaced the radio and it worked for a month or so and started doing it today

 

Same thing is happening on my unit. It randomly restarts throughput my drive. When it starts up when I turn the key on takes about 90 sec to 2 min for the backup camera to display ( nav screen is black) I'm afraid to take it to the either for the same reasons everyone else has said. Has anyone resolved this issue?