Ruan DeWet Brits

Was wondering if you saw any problems in the Energi after changing the wheel size. I had my wheel changed when I got my car and the dealership had me sign a bunch of waivers recommending me not to do it.

Wheels look great on the car. I changed my wheels to 18's however the dealership was unable to adjust the vehicle speed sensors. Has anyone else had any luck getting the vehilce speed sensors adjusted?

I just got the fusion Energi the end of June. I did not have any problems with the navigation untill about a week ago where I started noticing that my car is usually off the route. Has anyone with this problem had any solution?