I have a 2023 AT4X 6.2L. At 2750 miles the fuel pump went bad. Motor went into limp mode with reduced acceleration. Took my dealer a week to even get to it. Found out the fuel pump was shot, trailer break controller was bad along with 13 codes thrown. Truck has now been at the shop for 4 weeks (both parts were backordered) plus the week it took to get it on the schedule, so 5 weeks total to date. Had to insist they rent me a truck. Hopefully this is the last time its in the shop for anything major. Pretty ridiculous to see that similar issues have been going on for years over multiple model changes. Get you ****** together GMC! You're certainly charging premium dollar to us, the product should reflect your sticker.
