I'm in the industry and this is almost certainly software related. Simplistically there are two types computing systems, PCs/Laptops/Servers/Consumer electronics, and then embedded systems, things like cars.
Embedded systems often need to respond quickly to unexpected inputs. I suspect Microsoft sucks at writing an operating system that handles that well and if Sony had any hand at writing the SW that could be an issue too.
Also, the car companies have historically bought the car stereo and nav systems from third parties. There is a move to where the car companies are buying hardware from one supplier and then they are writing the SW themselves. I suspect that Ford and Microsoft wrote it and they have lots of bugs and mistakes. Could even be the fundamental SW arch.
I will ask around a bit to see what I can learn.
