The ProNav PNN220 allows drivers to enter their vehicles' vital statistics, including weight, height, length, width and the goods they are carrying (normal, corrosive/explosive), the software then calculates a route to ensure drivers are not confronted with roads or obstacles not suitable for their vehicle or cargo.

During a journey, the ProNav also shows drivers of hazards such as steep hills, high cross winds and the risk of grounding. These are displayed as icons on the software's maps, well in advance of approach. The ProNav can instantly re-route a driver's journey if deemed necessary.