I believe those pie shaped areas flash when a blind spot warning is detected.
As a side note, I wouldn't drive around in automatic 4x4 mode if you don't need to. In my opinion, doing so puts unnecessary wear on the rear coupling, which is a very expensive fix.
As a side note, I wouldn't drive around in automatic 4x4 mode if you don't need to. In my opinion, doing so puts unnecessary wear on the rear coupling, which is a very expensive fix.