Living in Arizona with 80 degrees, I turned my AC on. Had no issue with it at all. When "A FUEL LEVEL LOW" message appeared in DIC. AC no longer working as I thought it was something wrong with it. I stopped at gas station to refill diesel in tank to full. Then I started it up and now AC started to be working again. I looked at owner manual and could not find it unless I overlooked a page in a thick book. Have anyone experience similar? Once you in a low fuel level, you are not able to do a remote start too.