So I just got my new truck today, and coming home from the dealer I went to use cruise control on it. It worked great and fine in the test drive, and when I got on the interstate coming home, the first part of coming home that is. so I stopped for lunch, then after that the cruise didn't work at all the rest of the way home, some 90 miles. So after that I had another trip to make for work, so I tested the cruise again.... worked fine, but I had 3 bridges under construction, and when I went to get the cruise back on after the last bridge, same story cruise didn't work. What could be my issue?