Has anyone ever have a "SERVICE 4WD" message come up on the dash? Nothing seems to be wrong with it...it drives the same when the message is up as it does when it isnt. this is a intermittent problem. it doesnt come on sometimes and sometimes it does. one day i noticed it while i was driving and the red neutral light was on, i am guess that means a problem, but when i stopped and shut it off and got back in and started it it never happened again. just dont know if it is a computer problem or what?? can anyone help?