Low hour truck, but put joystick in reverse and sometimes it won't move for a few seconds, red warning triangle comes on and says "See error code". But then it always goes away and reverse does work after another second or two...but it is annoying that it hesitates so often.

When the display says "see error code"...where the heck is the code ? I don't see it on the display and I sure hope it doesn't mean the code on the MIB unit as that would involve removing the entire dash panel just to see the MIB... and by the time the panel was removed the code would be gone anyway I presume.