Trucks starts and runs, nothing happens inside

[Ami.K]

Hello,

 

A little background, I just moved to a colder climate area from a warmer climate. I auto started twice before walking out to physically get in and start my 2014 Sierra 1500 this morning (18 degrees out) and it started but it slowly died out. I started it again, it continued to run but nothing inside the truck turned on (radio, dash, no power steering, etc). Then a message popped up: “check battery charging system”. The battery was charged, and I have a brand new (refurbished) alternator in it; it’s about a month old and lasted a cross-country trip and then some. The battery terminals and fuses are good, we’re not sure what it could be. Any help would be greatly appreciated!

[rav3]

If it were me (which it's not) I'd start by checking grounds. Chevy are know for bad ground connections.