Beginning in August, Ford will recalibrate various drivetrain, climate-control and accessory systems to improve real-world gas mileage in the 2013 C-Max Hybrid, 2013 Fusion Hybrid and 2013 Lincoln MKZ Hybrid. The changes should help drivers "see the most improvement at highway speeds, during air conditioner use and operation in colder climates," product development chief Raj Nair said in a statement.
The move comes amid widespread complaints that Ford's hybrids aren't hitting their lofty EPA marks: 47 mpg combined for the C-Max Hybrid and Fusion Hybrid and 45 mpg for the MKZ Hybrid. The automaker faces at least two class-action lawsuits over too-high mileage claims. In December 2012, Consumer Reports said the C-Max Hybrid and Fusion Hybrid fell well short of their 47 mpg EPA figures during the magazine's metered tests. And in February 2013, the EPA said it would review how it tests hybrids — and scrutinize Ford's numbers in particular.