[Ford] Engine Coolant Warning
If you see a collection of waves with a thermometer floating above displayed with a red backing light then your car is telling you the engine is too hot.
The waves represent the coolant in the engine which is usually what is measured in terms of temperature.
The cause behind this can vary from the engine being pushed too hard to a leak or malfunction.
You must pull over and allow the engine to cool down, if the problem persists seek professional help from Ford or a trained mechanic.