Recreational Vehicle Lpg Tank Valve/gauge problems of the 2014 Jeep Patriot

Since day 1 of buying my Jeep brand new it stalls while I drive. Recently it has gotten 100x worse. Today I was heading home from out of town and I was driving on the highway when once again my rpm gauge would go down to 0 and my car would jerk. Although this time it did it over and over and over again until I finally pulled over and when I did my car completely locked up and stopped. . Like usual. So I turned my car off and back on and then it was fine again. Until 10 minutes later. It began jerking non stop on the highway so I pulled over and was gonna restart my car, but this time it wouldn't turn on. I sat there on the side of the highway panicking for 10 minutes until I could finally get it back on. And yet the next hour was full of non stop jerking and having to pull over. I have taken my car into the dealership around 4 times yet there's no light on so nothing can be found. I happen to look up recently and see there was apparently a recall on this veichle so I took it in again, but when they put my VIN there is nothing! this problem with it jerking and stalling has been happening since around December of 2013. I finally have decided to make a report because I am so tired of having to worry about my car dying on me while I'm driving! this veichle is so unsafe and needs to be fixed!!.