GM recently issued a massive recall of over 8.4 million vehicles to become the world's recall champion.
All of these are in North America with the vast majority of faults attributed to ignition switch defects. The number of vehicles recalled by GM is approaching 30 million worldwide. Toyota are also well known for recalling vehicles - the Japanese firm has already issued a massive 6.4 million vehicle recall in 2014. 27 different models were affected including the Corolla and Yaris. Steering brackets, seat rails, engine starters and airbag starter cables were the primary issues leading to the recall. Toyota has been forced into more recalls than any other manufacturer in recent years.
This chart shows large recalls among car manufacturers (in million vehicles)*.
You will find more statistics at Statista