I had a windshield replaced today and when I got back in the truck the DIC said "Service 4WD". The 4WD control panel was not lighted and the 4WD was not engaged. By the time I drove 4-5 miles headed to the nearest dealer, the 2WD light lit up and all seemed back to normal. I pulled off of the road onto a back street and tried both 4W High and 4W Low. Everything worked fine. The truck has 95,000 miles on it and I have never had a problem before. My concern is that I am going to tow my 5'er 250 miles back to my home base at the end of next week.

Does anyone have any thoughts here? What caused this? Will it come back? If it returns while I am towing next week, what problems might this cause? The dealer said they are completed over booked until Monday and I have an appointment then for them to look at it if I need to.

I don't expect to need the 4WD during next week's tow, but I don't want to further damage my truck?

Thanks guys.