I have a navigation system in my Jeep, I think it is the 730 model? I have been trying to figure out what one of the icons on the main screen is indicating, but with no luck so far. The icon I am talking about is in the upper right hand corner, and it looks like 3 cars on top of each other. Does anyone know what it stands for? I have looked in the manual, it shows a picture of the screen and descibes what everthing is, with the exception of this icon.

 

It has to do with traffic on the current road your on. If I'm not mistaken you have to subscribe to it.