2021 Denali 4WD, 32k miles. It seems okay (at least around the block) if I keep it under 20mph. As soon as I accelerate, I get the warning and it dies. It does start every time but the dealer is too far away and too much traffic to chance driving, so I had it towed. Internet searches alluded to a bad ECU. Fingers crossed that the dealer will actually find a faulty part and not just reset something. I will post when I get my truck back from the shop.