Three problems related to brake master cylinder have been reported for the 2013 Toyota Prius. The most recently reported issues are listed below.
My brakes failed on a two-lane divided street in lutz. We were driving straight, and when my husband put his foot on the brake, they failed. We drove to the nearest Toyota garage and the agent said that it was a master cylinder problem but the Prius would be covered under a recall - Prius� less than 10 years old and less than 150,000 miles on the clock were covered. My car fit both criteria. On returning to collect the car, none of the v class Prius� were included. The part number was c1391. We had to pay $3886. 09. Our manufacturer number was not covered. It was one number different. I spoke to the most senior executive I could contact at Toyota. (danny castro). Danny had no answers that I found satisfactory. His basic reply was: �your manufacturers number is not included. � these are my concerns and reasons: 1. There is a known fault with the master cylinder with all Prius cars, but the company says that it is only responsible for certain manufacturer part numbers, which doesn't include the v's. I think it's a design fault and by giving the part a different number to avoid the recall on v�s, seems underhanded. 2. There is nothing I have done to instigate or aggravate this problem. 3. My car has been perfectly serviced and I have not missed any mileage dates. 4. We were lucky. With the brakes failing abruptly and without warning, we were at risk and I believe that my complaint may save others that aren't so fortunate as us. All Prius cars should be covered under the recall program. The internet documents master cylinder failures on all Prius models, the top one being a leak; my problem. 1. 5 million cars are being recalled - why not mine!!!!.
Tl the contact owns a 2013 Toyota Prius v. While driving approximately 20 mph and attempting to brake, the vehicle did not stop and the tire pressure monitoring system, anti-lock, brake, and electronic stability control indicators illuminated. The vehicle was towed to john elway's crown Toyota (1201 kettering dr, ontario, CA 91761) where it was diagnosed that the brake booster/brake booster pump and master cylinder needed to be replaced. The vehicle was not repaired. The vehicle was taken to an independent mechanic who determined that the vehicle had a software failure. The manufacturer was not notified of the failure. The approximate failure mileage was 106,853.
Abs, brake and traction control warning lights came on while driving on posted limits on highway under dry conditions. At same time, brake pedal suddenly required more pressure to stop car. Warning lights stayed on, and returned after car was turned off and on again. Dealer stated it was brake stroke sensor malfunction and replaced part. Car was purchased new and had only driven it for a few weeks. Exact same thing happen again June 2015 and July 2015. Driving on highway, dry conditions, all three warning lights came on, and brake pedal required much more pressure to work. Steering also lost some power. Dealer diagnosed a stroke sensor malfunction. Computer code was c1247. First dealer I took it to in June 2015 couldn't recreate the problem, cleared the code, and said everything was fixed. Wrote "car is safe to drive" on my receipt. 2 weeks later same problem reappeared and a different dealer said brake master cylinder was failing.