The National Highway Traffic Safety Administration is investigating concerns that engines on 1.4 million Honda and Acura vehicles might fail.

The U.S. government’s highway safety agency is investigating complaints that engines can fail on as many as 1.4 million Honda and Acura vehicles. The probe by the National Highway Traffic Safety Administration covers the 2016 through 2020 Honda Pilot and Acura MDX,

Last year Honda recalled hundreds of thousands of vehicles due to engine failure and this year they may have to recall more.

The National Highway Traffic Safety Administration opened an investigation after reports that engines can fail in more than a million Honda and Acura vehicles.