Toyota Prius Hybrid remember lighthouse in Japan this week, reports show.
Toyota says the brake problem is connected to a software glitch
Japanese media, the difficulty could announce the formal recall 170,000 vehicles because of a brake problem.
National retailers have already announced the largest Japanese daily, Yomiuri reported.
The Toyota did not comment on the reports.
The brake problem affects about 270,000 gasoline-electric Prius, which sold in the United States and Japan since last May.
The company launched a software error and said it is already fixed in vehicles came to market last month.
The reputation of Japanese car giant has been hit by revelations about a series of mistakes in their cars, including the Prius.
Slow response in case the company has also drawn criticism.
Toyota has already considered in 4.5 million vehicles over faulty accelerator pedal and floor mats.
The error caused the car to accelerate even fatal for the death of an American family, the Lexus luxury car to accelerate out of control.
Toyota has to deal with, endorsed by 26 incidents involving defective pedal in Europe.
The Prius is the best in the world, sales of natural gas hybrid electric cars.
Fuel efficiency has caused great interest to worry about global warming and our dependence on fossil fuels.
