I would imagine you are trying to set the on board compass, these require to circle on full lock whilst they self calibrate.
The 2003 Ford Explorer's turning circle is 36.7 ft..
The 2012 Ford Explorer's turning circle is 38.9 ft..
The 2009 Ford Explorer's turning circle is 36.8 ft..
The 2006 Ford Explorer's turning circle is 36.8 ft..
The 2007 Ford Explorer's turning circle is 36.8 ft..
The 2008 Ford Explorer's turning circle is 36.8 ft..
The 2005 Ford Explorer's turning circle is 36.8 ft..
The 2013 Ford Explorer's turning circle is 39.2 ft..
The 2001 Ford Explorer's turning circle is 37.3 ft..
The 2014 Ford Explorer's turning circle is 39.2 ft..
The 2002 Ford Explorer's turning circle is 36.7 ft..
The 2004 Ford Explorer's turning circle is 36.8 ft..