WoodworthFencing

I have the same issue with my 2020 AT4 HD. I pull a trailer everyday, so there is a chance that it may be something with the trailering modules. I also have the screen on the stereo go black before it dies. I have had it die about 4 times in 6 months. They did the update at GM to the BCM and I woke up to it dead once again. I am about ready to light a match. This is the 3rd time that it was dead on a Monday morning. The battery was at 2.9 volts, which is obviously super low. Something is going on when it is supposed to be off. I have also noticed that when I am hooked up to a trailer and the truck is off, that the lights on the trailer will flash quickly one time about every 60 seconds or so. That is kind of weird.