Leveling my truck need help!

[Andymarco]

I have a 2019 Sierra 1500 elevation. I had recently bought a leveling kit from rough country, I came across a forum and a couple of videos of people saying that their 4wd auto didn’t work once the truck was leveled, they did have at4 and trail bosses but I’m wondering if that’s a problem across all gm model or just the trucks that come lifted from factory. If anybody knows something that would help I’d appreciate it! I do live in Canada so to have 4wd auto would be sweet to keep it!