Cannot Shit Out of 4H into AWD or 4L

After shifting from AWD to 4L to get out of a horrifying situation. My 2002 MIT Sport is stock in 4H. It will not shit back into AWD or 4L and the All-Wheel-Drive operation indicator light remains off even during initial engine start. I have being driving it for over 1 month and 400 miles in 4H. The owners manual solution to the problem did not solve it.Suggestions, ideas and solutions please.

You are missing a couple of “f’s” in your post or you need to take your Montero to a proctologist.