To date , 8.1 million vehicles worldwide have been recalled by the manufacturer , with the possibility of more to come after Thursday 's announcement by the National Highway Transportation Safety Administration of a formal investigation into brake problems with the 2010 Prius . 8.1 million vehicles worldwide have been affected by Toyota . Popular Mechanics magazine says thousands of cars have had similar problems . Fact Check ##er to see if that 's true .
8.1 million vehicles worldwide have been affected by Toyota . Popular Mechanics magazine says thousands of cars have had similar problems . Fact Check ##er to see if that 's true .