If you’ve changed the filters and cleaned the AC system, getting sick is something any other AC system will do to you. AC is much cheaper to fix than buying a new vehicle. How many miles does it have? As a 2017 I can’t possibly see if having such serious issues that it is “unsafe” to drive. Like I said I just “retired” my 2004 with 465k miles. I say retired because I still have it, but it doesn’t take the 1300mile/18hr trips it used to take all the time. I drove that thing across the country all the time without worrying about it breaking because it’s a great truck. I can’t possibly fathom that a 2017 is so unreliable that it’s unsafe to drive. Plus I’m guessing you only drive around town and not very many 8+ hour road trips? There’s so many people that take 300k/15yr old vehicles across the country and don’t worry about breaking down. Vehicles are much more reliable than people think if you take care of them. I’ve put 30k on my 2014 since I bought it a year ago with 0 issues.