Last month, Hyundai and Kia admitted to selling more than 900,000 U.S. vehicles with overstated fuel economy ratings in the 2011-13 model years. The affiliated Korean automakers will compensate owners for the faulty claims.
The two companies also will lower the fuel economy estimates on most of their 2012 and 2013 models, the companies said in a joint statement.
Hyundai is retracting a claim that it leads the industry with four models that get 40 mpg in highway driving. The estimated highway fuel economy of most 2013 Accent, Veloster and Elantra models will fall to 37 or 38 mpg.
The combined average fuel economy for Hyundai and Kia models will fall to 26 mpg from 27 mpg for the 2012 model year, the companies said.
With the adjustments, neither company will market a model that achieves 40 mpg or more on the highway as previously advertised.