I have a '21 Silverado 2500. Just recently, the trucks Infotainment system has been shutting off every 3 minutes. The audio stops, the screen goes black and in about 15 seconds it turns back on. This happens every 3 minutes. Interestingly, I've also noticed that when the screen blacks out, the turn signal chime turns off.
So far, I have:
-checked for updates on the infotainment system.
-unhooked battery for 30 min to reset electrical system.
-checked fuses.
None of these have changed anything.
Could it be a relay?
What else could it be?
