Lol wow now thats some troubleshooting. My truck did this a couple times going from 4h to 2h. Thought it was just because it didn't like the dry pavement (switched on it's own going to tow mode accidentally instead of sport) but it seems like it doesnt matter. Really wish 4H wouldnt engage in...
Was there any resolution to this issue? Mine did it when I was trying to switch to sport mode and it ended up in tow mode which engaged 4wd. Went to sport and 2h came on and it started. Pulled over to stop and went away when Istarted back driving