Happened about a year ago but wanted to post this for reference for others who may have experienced something similar or wondering what the f*&% happened. A little less than 500 miles on the truck (first week of ownership). Driving down the freeway at 75 and suddenly i couldn't put power to the wheels. I could hit the gas and the engine would rev up, but i was decelerating in a coast. When i'd hit the gas, RPMs would jump and then sort of hold and slowly fall vs. bounce up and drop back down as if it were in neutral. There was no bang or clunk or thunk or any auditory or physical indication that something went wrong. Checked to see if i was in drive, i was. Tried the paddles to shift into a different gear, nothing. Got myself just barely over to the side of the 405 (yeah...that shitshow of a freeway). Tried putting it in neutral and back, nothing. Tried reverse and back, nothing. Then i tired to put it in park...definitely didn't like that. Sounded like a blender filled with metal chunks erupted from underneath the car. I made sure i was at idle, foot on the brake, etc. Pulled it back out of park into drive no problem, but still couldn't put any power down. Got it towed to the nearest dealership. They notified me that the transfer case had failed, the clutches in the transmission had burned/melted and there were metal shavings inside the tranny. Their initial solution was to replace the transfer case and just throw in new clutches and call it a day. To which my response was, the hell you are - i need a new transmission as well...no way in hell i'm starting out ownership of a $70K truck with a repaired transmission after a catastrophic critical component failure in the first 500 miles. They replaced both the transfer case and tranny. To this day, they don't know what exactly caused the failure. When they inspected the transfer case, they said that 4 Low was completely destroyed and had caused the transmission to seize. My initial thought was "did i somehow engage 4 Low while at speed on the freeway?" But i had both hands on the wheel and wasn't touching a thing so i know i didn't turn the drivetrain dial. On top of that, the computer should have blocked that from happening regardless. I then surmised that maybe they didn't put transmission fluid in it? But seems unlikely. Who knows. 17K miles later after the replacement and the whole thing is fine. Haven't had an issue since. Every once in awhile the transmission will sort of hiccup a bit, but that seems par for the course with these 10 speeds they shoehorned into the Gen 2s according to other people's accounts of their normal driving experiences. Weird one for sure. Glad warranties are a thing.