Dodge Repair Questions? Ask a Mechanic for Answers ASAP
The very first thing to do is retrieve all of the trouble codes from all of the modules and see if any refer to this problem of it shifting out of 2wd on it's own.
Call around to your auto-parts stores and find out which is any will retrieve those codes, most do that for free and make sure they can retrieve codes from all of the modules and not just the pcm.
Find anyone who can retrieve those codes yet?
Ok, let me know when you get the codes.
Do you have the codes yet?