Phantom Rear Window Activity

[Plimbob]

After my 2017 Tahoe sat out in the sun last Saturday (98 degrees) the rear drivers side window all of a sudden would go down on it's own. I'd roll in back up and it will go back down, I put the window locks on and it stopped but when you take the locks off it goes right back down. I suspect it's something wonky with the BCM.

I looked thru past threads and didn't see anything pertaining to this. I was going to unhook the negative battery cable and let it sit for 30 minutes and see if it will reset the window?

Anyone have this happen?

 

[Big Mama]

That’s a weird one. What happens if you disconnect the window switch?

 

[Plimbob]

I haven't attempted to disconnect the switch yet. I was going to disconnect the battery for a bit and see if it reset properly. If that doesn't work, the on to option 2-3, etc.