My Toyota - a Japanese car - cannot display song titles in Japanese. I kind of assume this is a localisation issue rather than something that would happen in Japan though, although the car entertainment is terrible in many other ways too so who knows.
Most likely because the embedded system does not use UTF-8, just like the phones before iPhone, a Nokia phone sold in US sometimes cannot even be flashed to display CJK characters due to CJK support require more ROM space.
My Garmin watch is like that. If you want Japanese language support you have to buy the japanese model which is obiviously only for sale in Japan. So dumb that I can't just flash the japanese firmware on. Instead I have support for Russian which I have no need for.
