In my DIC the fuel used is stuck at 9999.9. will it roll over to 10000.0 or do i have to reset it back to zero. its been like this for two days probably traveled a 100 miles or so like that

Welcome to DP. I'm sure some one will chime in and give you the answer you are looking for. I always set my DIC back at every fill up. But if its at 9999.9 for two days and you added another 100 miles to it that might be at its limit. Reset it if your tired at looking at 9999.9

I alwasy reset mine every time I fill up to see how much I have used. Something tells me that it has been maxed out. I would just reset it. I dont see the point of not resetting it other than not caring about how much fuel is used. Is there a reason why you have not reset it?

Also you should fill out your signature with your trucks information. It makes solving problems easier when the truck is known and what is on it.