After watching the most recent Project JL video from Moab, I have to wonder if anyone at Jeep has been contacted regarding the issues with the powertrain when climbing. My fear is that eventually, this is going to cause an accident. We also have a 2014 Grand Cherokee Ecodiesel that has the same transmission as the JL. Last year we took it for our yearly Colorado trails trip. I had the same issues with it. Once while on Poughkeepsie Gulch climbing the wall. Just as I thought I was going to make it, it did exactly what you guys experienced in your JL. The scarier incident though occurred while making one of the really steep switchbacks (I believe on Engineer Pass, but it might have been Cinnamon Pass), we had just turned and started up a switch back and suddenly all power went and I started rolling backwards. Since I had just made the turn, this roll back put me dangerously close to the edge. I wasn't sure what happened so I had my wife get out while I sorted out the issue. I shifted to manual mode and used the paddle shifters to shift and it seemed to be fine that way. At the time I thought it was just a fluke but after seeing the video here, I realize it was the same issue we had in the Grand Cherokee. I haven't experienced it wheeling the JL yet, but I can tell you in the wrong place at the wrong time, it could very well cause someone to have an accident. I hope Jeep does something to address this.