alt Hacker NewsHaving worked in software at a legacy car company (Mercedes specifically), I wouldn't actually be too worried about most of them either (note: in this regard specifically, I could certainly criticize plenty of other things). There's a lot of institutional discipline keeping the stability and operation of the driving stuff separate from the screen stuff.
It's not just the screen. Microchips and sloppy firmware are everywhere.
My 2015 Jeep Cherokee had a freakout one day: the power steering stopped working mid-drive, on the highway. I was 50 minutes from my house, had to turn around and drive back home (an exhausting exercise given that modern cars are not built to function without power steering). I got to the dealer, parked in the lot, turned the car off, wait 30 seconds, turn it back on, everything worked fine.
That never happened again, but once is enough to put somebody in a dangerous-to-life situation.
It's not just the infotainment system we should be worrying about. Most modern cars are now distributed computer systems.