[4x4k30]

I would take it back to the dealership if they check it and say they cant find any problems I would take it a mechanic that you can trust and have them check it out or find another dealership I know how it is with warranty work it sits there until they want to get to it the other big paying jobs come first. it does sound like you have a lemon the truck should do better than your 2010 does good luck