No warning lights intermittent brake loss called Ford told them what was going on and immediately told me hydraulic control unit the valves may stick open for short period of times then return to normal.but would have to take a look. had brakes replaced and bled ford has had this exact issue with other ford models having the hydraulic control unit a recall was issued for the others. But not all of their cars it lead to a crash by not being able to get stopped doing 40mph in a 40 mph zone issue happened year and half ago went had brakes checked out and re-bled the brakes almost lead to another crash then brakes are normal then no pedal at all