This is due to the clever routing functionality which reduces mileage, therefore fuel costs.
For the ecologically-minded this can also have the knock-on effect of reducing CO2, or carbon emissions.
Dealer opened up dash and plugged in a working Navi system only to have no change and then wanted to charge me 2 more hours of exploratory surgery.
Really am not wanting to pay 5hr for exploration.
Also, is there a specific site to order the upgrade for 2014?