There's this weird conspiracy theory that is making the rounds. The conspiracy goes like this: car manufacturers don't want homeless people sleeping in cars, so when a car is off, the air vents automatically close. They say you must crack open a window, but this wouldn't be good in the winter time when it's cold, and you can't leave a car running while parked because of the risk of carbon monoxide poisoning. So, a homeless person in the winter time who only has a car would have no choice but to sleep with the car off and the windows rolled up. When pressed for evidence, this is the article they like to respond with; https://arstechnica.com/cars/2014/1...-lock-themselves-in-keyless-car-for-13-hours/ which is presented as something which actually happened. I was unable to verify if this is a true story. There are no photographs of the alleged 'couple' and the 'couple' mentioned they were opening up a group to warn the public about the ''risks'' of these new cars. I was unable to find said group, and it's been over seven years since the article was submitted. None of the key details in the story add up, and the car model is mentioned a suspicious amount of times in every iteration of this legend. Is a person at risk of suffocation from oxygen deprivation if they sleep in their car with the engine off and the windows rolled up? Let's put this conspiracy theory to rest!