We have a 2015 Excursion 33D.   We crossed an extremely rough interstate and all the dash gauges quit working.  I phoned Freightliner and was told the computer might have been roughed up.  I was told to pull the instrumental panel fuse or disconnect the battery for three or four minutes and the computer should reset.   I could not find any ip fuse and disconnecting the battery didn't work.  I plan to visit a Freightliner Service Center on Tuesday unless you folks have any ideas.