In May, the National Highway Traffic Safety Administration launched an investigation into Fiat Chrysler over Jeep and Dodge SUVs that were recalled in July 2014 for a wiring issue that could cause sun visors to burst into flame. NHTSA wanted to see how effective that recall remedy had been, after post-recall reports of problems continued. Chrysler is now recalling almost 389,000 SUVs in the U.S. for a second time for that same issue. The recall covers Dodge Durangos and Jeep Grand Cherokees from 2011 through 2013 model years.