Sorry, for this is not an answer, I have the same problem & more. I could leave my 2011 Grand Caravan R/T, and come back to it, and find the back open, windows down, side doors open, or the vehicle running. I tried all the suggestions, and I didn’t want to disable these functions, for I have a lift seat installed, to lift my wife into the vehicle, in that she has MS. I now, after turning off my vehicle, place my key fob in aluminum wrap. I have also done this to my spare set, because the vehicle’s horn would start beeping all through the night. Since wrapping them, the horn no longer beeps at night.
If I had not had a lift seat installed, I would get rid of this vehicle, but the size & adaptability of this vehicle is great. I wish there was an easy solution, or even a hard solution. There is no conciliation in knowing so many others are going through the same problem, and Dodge/Chrysler has no remedy for the problem.