Marty,
I'm going to disagree, not on the need but on the method. This model appears to have an LCRU1 in it. These were not resettable by a sequence of button pushes. (Pushbutton reset began with LCRU2).
Here's an explanation from @PaperTRW:
I'd say that Ron's LCRU thinks that it's currently setup to be a "diesel with strobe light" instead of a "diesel with directional lighting". Based on Todd's explanation of how LCRI1's are configured I'd say that here's a configuration wire that's either not connected (loose connection?), or is connected incorrectly.
See THIS OGR FORUM THREAD for the explanation above and additional details.
Mike