I have a new 2019 Sahara. This happened to me, as well. I was stopped at red light, felt a lurch, the car directed me to shift to P and then back in drive, and then the engine light came on and the car wouldn't move. It has been back at the dealer for the past week and they told me it was just a "glitch" with the system, but they want to hold it for a while because the error codes are indicating an issue with the transmission. This is my first Jeep, and so far it has been a nightmare, I was at 400 miles when it stalled.I just got my 2019 Jeep JL Rubicon and I'm having issues with the start stop or the transmission. I will drive it and it looses power. Mostly when I'm stopped and I start to go. I even turned off the start stop feature. Today I floored it and the RPM went up, but the Jeep didn't move. At park it acts like it wants to die, and sometimes shakes, and that is with with start stop turned off. It almost acts like bad gas, but I don't think that is it. The issue started around 700 miles, which, matches a complaint from someone who bought a 2019 Jeep Cherokee.
Need help, is anyone having this issue?