Two problems related to brake antilock wheel speed sensor have been reported for the 2016 Ford Fusion. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 Ford Fusion based on all problems reported for the 2016 Fusion.
Vehicle in motion. After 40mph, service advancetrac lights on dash. Abs is activated even though on dry ground. Brake pedal becomes hard and drops about 50%. Stopping distance dramatically increased. Pedal pulsates under my foot. Traction control turned off. Hill assist turned off. This continues to happen every time I drive the car since mid November, 2018. The defective part is the tone ring, which is part of the wheel bearing and is very expensive to repair. Ford will do nothing about it even though there is no problem at all with the tone ring. The electrical problem is the harness that the wheel speed sensor plugs into on the left front wheel. The yellow wire has a hole in it and corrodes. Ford is also aware of this problem but refuses to do anything about it.
When driving car & using brakes pedal will go part way to floor without having any brakes work & dash warning lights will come on that include hill star assist , check rear park aid, service advance trac, abs light & air bag light. . . I have had complete brake failure twice at slow speed so was able to coast car to a stop without having possibly a serious accident. I have had car at 2 dealerships trying to get car fixed. . . They have replaced brake lines & speed sensor with no good results. They will write down on work order that customer states this is a problem & that they will test drive it & be unable to verify concern . Thus returning car to me. I bought car with approximately 23,000 miles & now at 87,000 with problem happening every time I drive it. Also having other problems with car but this one is very serious.