I have same problem 2017 AT 6.2
shut off while driving once !!! Bot truck new just started this winter 55k
checked all the grounds neg battery cable etcetc all the known causes
Dealer had truck for 2 days could not find issue and truck never shut off when they had it
in my case only happened in very cold weather but truck fully warmed up
when it shuts off cranks and fires but shuts off immediately
let it sit for 10-15 minutes starts and runs fine ??
when dealer had it it showed my low pressure fuel pump was getting weak intermiitently
they “ think “ the pump getting hot and pressure drops truck shuts off
when let sit for a while pump cools then it starts ???