I have no desire to ever again own a vehicle with over a dozen computers in it, all of which require expensive and time consuming dealership diagnostics to fix when they fail. Replacing an engine used to be the most expensive thing a vehicle needed. Now, it’s fixing a stupid computer glitch.
The '90's and oughts were peak car, in my opinion. When OBD II came out, with a computer controlling the engine, and fuel injection, I thought cars would be too complicated to work on. Turns out, it simplified maintenance over the spaghetti monster, carburetor engines had become. The car actually told you what was wrong with it!
Fast forward, and of course car makers went too far. I have a 2010 BMW that started showing signs of brain damage. The little drop the windows make when you close the door started cycling over and over. The lights would randomly flash high beams, whatever setting the switch was on.
Cost $1700 at the dealer to replace a secondary computer. They had a hell of a time linking it to the car, because it was 15 years old at the time, and the software was out of date.
Oh, also you have to go to the dealer to replace the battery, because it also has to be linked to the car, unless you train yourself and buy some expensive equipment. No thanks!