I gotta say one thing here. Most cars have 40 or so computers in them now. I think that's insane / overkill. Just more to go wrong. I am actually, but slowly, taking my cars that were built in 2015 + , selling them privately, and buying 06', 08, 03, Toyota's, also privately. You know why ? The dashboard's are never Christmas trees, I don't need a 4 year college degree to repair them, I don't need a $ 5,000.00 computer to scan the other 40 computer's on the stupid car. These old cars get great as mileage, and I can maintain them. Rust is my biggest enemy being in NY, but I stay on top of that yearly. Other than that, it's the usual. Brakes, tires, oil changes, light bulbs. Turn the IGNITION KEY ( remember those), and it starts. Period.