CNN has reported that an investigation has revealed a defect in millions of more Ford trucks and SUVs that could result in fires, even when the engine is not running. These fires can be caused by a $20 cruise-control deactivation switch in the SUV or a truck. This type of switch was installed in millions of Fords from 1992 until 2003. The problem has already resulted in more than a million recalls, but the National Highway Traffic Safety Administration opened an expanded investigation into more than 3.7 million of the vehicles. CNN claims that it has internal Ford documents showing that a similar switch was installed in 16 million vehicles.