Similar problems still exist, turns out software is hard: https://medium.com/backchannel/how-technology-led-a-hospital...
It's ironic that this article mentions the Toyota Production System as an example of a safe and defect-free system. Another article about Toyota was posted on HN today:
«Toyotas Unintended Acceleration and the Big Bowl of "Spaghetti" Code (2013)»
http://www.safetyresearch.net/blog/articles/toyota-unintende...
Apparently Toyota's software development doesn't follow the Toyota Production System.
OK, that was a flip comment; it's pretty clear that TPS isn't suited to software development. However, it does seem clear that Toyota's software development practices are deficient.