VIDEO: Is your car at risk of catching fire just sitting at your home? Auto company Carfax said the number of “park outside” recalls—warnings from federal regulators and automakers to park vehicles away from garages or other structures because of significant fire risk—jumped 40 percent nationally and 45 percent in Greater Boston between May 2023 and Jan. 2024. “These are the kinds of recalls that frankly should keep you awake at night,” said Carfax spokesperson Mike Lavigne. Carfax said more than 3.7 million vehicles under a “park outside” recall are currently on American roads, including 72,672 in Massachusetts. The most recent high-profile case occurred last fall when the National Highway Traffic Safety Administration announced “park outside” recalls for 3.3 million Hyundais and Kias due to fire risks.