(New York, N.Y.) – The National Highway Traffic Safety Administration is investigating complaints from Ford Explorer owners..who say they smelled exhaust gas inside their SUV. The reports involve Ford Explorers built between 2011 and 2015. Owners say, they smelled the exhaust gas while the vehicle was in full throttle or merging onto freeway ramps. Others say, the odor was detected while the air conditioner was engaged. So far, no injuries have been reported. Ford is investigating the matter.