Engine Shut Off Without Warning problems of the 2017 Chrysler Pacifica Hybrid

While driving to work in the morning on 19-Feb-2019, the mil check engine lamp illuminated as well as the "red turtle" limp mode indicator and a dashboard message stating "vehicle speed may be limited. " this happened while driving on local surface streets about one mile from my place of work. I had just turned off a 45 mph main street onto a 35 mph side street. The gas engine in my phev hybrid vehicle stopped working but could still operate at normal speed in all-electric mode. I got to work and plugged my phev van into a chargepoint evse to recharge. At lunch, I ran some errands and noticed that the gas engine still would not operate under any conditions, which is very rare during the harsh, cold weather we were having at the time in the chicago area. After returning to work, I made a service appointment at my local dealership for that evening. On my drive to the dealership after work, the all-electric motor also failed and stopped working about two miles from the dealership. This happened on a 35 mph main street, and I was driving straight down the road at the time. I shut the vehicle off and restarted it and was able to move about 100 feet before it shut down again. I was able to repeat this process 2-3 times in order to turn my vehicle off onto a side street so that I was not impeding traffic on the main thoroughfare. I had my phev van towed to the dealership that evening. It has now been at the dealership for repair for 49 days, and they still cannot determine what caused the loss of power and forward motion.