. . General Motors Co will recall 5. 9 million vehicles with potentially dangerous Takata airbag inflators after a U. . S.. . The security agency said Monday it had denied the Detroit automaker's petition to avoid the recall. The recall is expected to cost the Detroit automaker $ 1. 2 trillion. The National Highway Traffic Safety Administration (NHTSA) said GM must recall the 2007-2014 model year trucks and SUVs because the inflators "are subject to the same type of explosion as other recalled Takata inflators after prolonged exposure to high heat and humidity. ". ""