Japan production

Japanese quality control has produced an extraordinarily high percentage of the world's most reliable products - cars, cameras, cups, nail clippers....  Buy Japanese often equates to buy troublefree.  Certainly buying a Japanese product after the breakage of a Chinese copy is considered wise.  But if one's own Toyota breaks down, does that all change?  Is it time to start looking for signs of Japan's decline, and the next big thing.  Or is it some kind of cosmic anomaly?