lakeview12

Hi all, 

I have a question that I'm hoping someone here can answer for me. At the top left hand side of the compass-navigation display, there is a series of four arrows in like a diamond pattern. They point up, down, left and right. I've gone through the entire owners manual twice and can't find a thing that tells me what it is. Any ideas?

Recently purchased a 2015 Ford Edge Sport which I love!