Auto question. Or, tech question. I have a new Ford. The instrument display has a small speed limit sign of the road you are driving on in the right bottom corner. It flashes a couple times if you go over the speed limit. Where does the vehicle get the road speed limit information from? On Highway 40 they are doing a lot of construction next to the highway - new G7 cellular towers. There are temporary speed reductions and temporary speed limit signs. It goes from 90km to 70km to 50km. My vehicle "picks up" these temporary speed reductions even when the speed reductions are new and change location. How does it "pick up" these temporary speed limits?
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