Was driving on the highway. Thought there was a smell of something burning. Stopped didn't see anything. When I arrived at my location the smell was much stronger. When I stopped I saw smoke and fire coming from the left front tire. Fire Department was called because the vehicle was parked next to a building. I used three fire extinguishers to put the fire out. The fire department arrived and put water on the area to lower the heat. It turns out the ABS system malfunctioned locking up the right rear and left front brakes. Turns out to be a common issue with the Transit Connects. Ford dealership said the issue is a faulty ABS controller that would cost a minimum of $3000 to replace and program. If we didn't have the fire extinguishers we would have lost the vehicle and most likely the building it was parked next to according to the fire department.