How do I tell which Toyotas are affected? Do they all have these problems? What, if anything, did Toyota do to fix their software engineering processes?
I ask because my parents have a 2005 or 2006 Toyota Sienna, and I don't feel very comfortable with them driving it now.
Maybe I'm wrong and this is a significant risk, but the approach should be the same. Even if they found and fixed one problem, the stats would still tell you which cars are safest. It could very well be that other vendors are worse, just haven't been investigated.
This tells us that even if (big if) the issue was real, it was actually never important. Also funny that it never was an issue outside of the US.