Artur Widak/NurPhoto via Getty Images(NEW YORK) Ford is urging owners of 2021 Ford Expeditions and Lincoln Navigators to park their vehicles outside and away from any structures due to a fire risk, the National Highway Traffic Safety Administration said Thursday. According to the recall documents, more than 39,000 Ford Expeditions and Lincoln Navigators have a defect that causes risk of "underhood fire, including while the vehicle is parked and off." More than 32,700 of the affected vehicles are Expeditions and over 6,300 are Lincoln Navigators. The vehicles were built between December of 2020 and April of 2021, according to a statement from Ford. "Until further notice, owners of these affected vehicles should not park them inside – they should only be parked outside and away from homes and other structures," the NHTSA said in a Thursday press release. "Fires have occurred in vehicles that were parked and turned off." Ford said it has confirmed 16 fir