The world's biggest automaker said the defective engines could stall while the vehicles were moving.
Of the 270,000 vehicles, some 180,000 were sold overseas and the rest in Japan. They include luxury Lexus sedans and popular Crown models.
Kyodo News agency and Fuji TV - without providing sources - said Toyota would recall 270,000 vehicles. Toyota spokeswoman Ririko Takeuchi would not say if the company would issue a recall.- AP