A specialist trader works at the post where Fiat Chrysler Automobiles is traded on the floor of the New York Stock Exchange (NYSE) in New York, U.S., March 8, 2017. REUTERS/Brendan McDermid

WASHINGTON (Reuters) - Fiat Chrysler Automobiles NV FCHA.MI said on Friday it is recalling 470,000 vehicles worldwide to replace a component that may inhibit deployment of the vehicles’ active head restraints in the event of a crash.

The Italian-American automaker said it is unaware of any injuries or accidents related to the recall. The U.S. National Highway Traffic Safety Administration opened an investigation into the issue in June. The recall covers 2012 Jeep Liberty sport utility vehicles and 2012-13 Chrysler 200 and Dodge Avenger mid-size cars.