Jason Stuart Walker

I had a dead battery, had it checked to make sure it was dead. Bought a new battery and once I got it installed the truck lights flickered and the leveling system started and then everything stopped. Everything is connected properly but it’s as if the new battery is completely dead. I tested it and it’s fully charged. Stumped at what could be going on. It’s a 2022 GMC 4WD Elevation series.