Why did Tesla recall quarter of a million 'Made In China' cars?

Tesla is recalling over 285,000 cars most of which are made in China due to safety risks associated with Tesla cars' cruise-control system. 

The recall announced by China's Administration for Market Regulation said on it's website the move is linked to an assisted driving function in the electric cars, which can currently be activated by drivers accidentally, causing sudden acceleration. The regulator said they had received the request for recall from Tesla a few days ago. 90% of the cars 'recalled' are locally made in China. 

The recall which will involve a software update not a typical return to the store is a first of it's kind for Elon Musk backed Tesla.