The contact owns a 2010 Toyota Prius. While driving approximately 30 mph the brakes were engaged with a slow power response. The vehicle had a prior recall repair under NHTSA campaign id number 10V039000 (service brakes, air: Antilock: Control unit/module). The failure occurred intermittently. The failure mileage was 10,000. The current mileage was 10,600.

- Manhattan Beach, CA, USA

The contact owns a 2010 Toyota Prius. Whenever the contact attempts to brake while traveling over a rough surface the brakes will hesitate to engage increasing the stopping distance. Prior to the recent failure the contact had taken her vehicle to the dealership where NHTSA recall # 10V039000 was performed on her vehicle. The current and failure mileages were 1300. Updated 05/10/10 updated 05/10/10

- Silver Spring , MD, USA

I have filed a complaint here before about my 2010 Toyota Prius, where the brakes were supposedly fixed last week by Toyota following the recall. However, just today the braking problem, when hitting bumps in the road, seems to not have been fixed at all. Driving in the DC area, where there are a lot of potholes around, it is easy to test whether the brakes are fixed or not. While driving along the road today, nearing my house, I hit a pothole, and just as it had been happening before, the brakes seemed to completely let go and the car lurched forward for a split second until the brakes seemed to regain power and I was able to press down on them again. Prior to that incident, and not 10 minutes earlier, I hit a small pothole while braking lightly and the brakes gave out just slightly. It's an unmistakable feeling, having experienced it numerous times before Toyota finally decided to recall the 2010 Prius. Updated IVOQ 07/08/10.

- Silver Spring, MD, USA

The contact owns a 2010 Toyota Prius. The driver stated the her vehicle was recently repaired per the vehicle speed control recall. The failure continued to occur. Immediately after the repair was made, she was driving 30 mph over a pothole; however, when she engaged the brake pedal, the vehicle accelerated. The VIN was not available. The failure mileage was 10,500 and the current mileage was 11,000.

- Northridge, CA, USA

The contact owns a 2010 Toyota Prius. She confirmed she has experienced brake failure several times in the vehicle. While attempting a right turn over railroad tracks with her foot on the brake pedal, the vehicle abnormally lunged forward and began to accelerate. She continued to depress the brake pedal until the vehicle came to a stop. She also noticed that when driving uphill, the vehicle was hesitant to accelerate. The vehicle had not yet been taken to the dealer for inspection. The failure mileage was 65,000 and the current was 96,077.

- Tampa, FL, USA

The contact owns a 2010 Toyota Prius. The contact stated that as she was coming to a stop and the road was wet when there was gravel on the road the brakes would not engage while being depressed. The vehicle lunged forward and hit the curb a couple of times. When driving at a high speed and slowing down the brakes did not hold and a crash almost occurred. The contact stated that on several occasions brake failure occurred since the vehicle was purchased. The vehicle was taken to the dealer who stated that the failure was not related to the brakes but how she drove the vehicle. The Toyota manufacturer have not been called for the failure. The failure mileage was 14,905.

- Hanford, CA, USA

The contact owns a 2010 Toyota Prius hybrid. While driving approximately 2 mph, the brakes were applied and they did not engage. The contact called Toyota and was advised to wait for a letter. The contact called the manufacturer and could not get through. The current miles were 3603. The failure miles were 1689.

- Norton, MA, USA

The contact owns a 2010 Toyota Prius. She stated that while driving at 30 mph she drove over a bump on the road. While having her foot on the brake the vehicle surged forward, a few seconds later the brakes engaged. This issue has occurred 5 additional times. The vehicle has not been diagnosed and no repairs had been done at the time of the complaint. The failure mileage was 1000 and current mileage was 35000.

- Eagle Rock, CA, USA

The contact owns a 2010 Toyota Prius. The contact stated whenever she was applying the brakes, the brakes cease to work periodically when going over a bump or a pot hole. The vehicle lurches forward as the brakes are depressed whenever she hits a bump. The vehicle was taken to the dealer and contact was told it was her imagination and nothing is wrong with the brakes. The Toyota manufacturer had not been called at the time of the complaint. This failure has happened from the day of purchase. Updated 03/15/10 the consumer stated when the brakes were depressed ocassionally, the braking mechanism would fail momentarily which caused the vehicle to lunge forward. The consumer had repairs made to the vehicle. However, the problem continued. Updated 09/15/10

- Silver Spring, MD, USA

The contact has 2010 Toyota Prius. The contact stated that while driving approximately 15 mph four times when she drove over a pothole and the brakes were applied, it felt as if the vehicle lunged forward. The brakes always functioned normally on even road surfaces vs. An uneven surface. The VIN was unavailable. The failure mileage was 2500. The current mileage was 2700.

- Libertyville, IL, USA

The contact owns a 2010 Toyota Prius which was purchased in August 2009. She stated that whenever she applied the brake pedal during inclement or rainy weather conditions and uneven pavement, the vehicle lunged forward. The brakes would not engage and there would be a momentary hesitation. The dealer was contacted and advised her that it was normal and she must have been driving too fast. The contact confirmed she was not speeding and that even while traveling at speeds of less than 10 mph or in a parking lot, the failure would occur. The ECU module and the ABS system was reprogrammed under the service brakes recall campaign id number: 10V039000. There were no additional failures since the repair was made. The failure mileage was 200 and the current mileage was 5,000.

- St. Charles , MO, USA

The contact owns a 2010 Toyota Prius. While the contact was driving at 15 mph there was a reduction of the speed rate. The driver encountered a speed bump with pressure of the foot applied to the brake pedal. The brakes failed to engage and the vehicle began to surge forward. The vehicle continued to the destination and parked the vehicle. The failure occurred two different times. The contact is in the process of notifying the dealer. The vehicle has not been repaired. The failure mileage was 3000 and current mileage was 5000.

- Ellicott City, MD, USA

The contact owns a 2010 Toyota Prius. While driving over a rough surface, the brakes failed to stop the vehicle. He stated that the anti-skid activated while driving on that type of surface. The failure occurred 100% of the time on roads with a rough surface. The dealer told him that there was nothing wrong with the vehicle. He had not spoken with the manufacturer to-date. The vehicle had not been repaired at the time of the complaint. The current mileage was 13,202. The failure mileage was approximately 600.

- Scotsdale, AZ, USA

The contact owns a 2010 Toyota Prius. The contact stated that when driving various speeds and trying to depress the brake pedal, she noticed that the brakes failed to respond. She would apply pressure to the brake pedal and they would lock for a few seconds. She noticed that the failure occurred 5 to 6 times. She took the vehicle to the dealer and they were unable to duplicate or diagnose the failure. The dealer also stated that the vehicle was designed to have the braking system lock for 3 seconds when they are engaged forcefully; afterwards the driver had press the pedal again to release the locked position. She had not spoken with the manufacturer to-date. The vehicle had not been repaired when the complaint was filed. The current mileage was approximately 4,600. The failure mileage was approximately 1,500.

- Naperville, IL, USA

The contact owns a 2010 Toyota Prius. While driving 15 mph with the brake pedal engaged it failed to respond which forced her to apply pressure to the brake pedal in order to stop the vehicle. The vehicle also lunged forward when the contact drove over a pothole. The dealer stated that since the vehicle was brand new it was adjusting to her driving pattern. The failure has occurred approximately 6 times. No repairs were made to the vehicle. The failure mileage was 1000. The current mileage was 6292.

- Fairfield, CT, USA

The contact owns a 2010 Toyota Prius. While driving approximately 40 mph on uneven roads, the vehicle failed to stop immediately when the brakes were applied. The vehicle also lunged forward. The failure mileage was unavailable. The current mileage was 5300.

- Oklahoma City, OK, USA

The contact owns a 2010 Toyota Prius. The contact stated that while driving approximately 35 mph and applying pressure to the brake pedal the vehicle lunged forward and accelerated whenever there was a bump or pothole in the road. The dealer stated that the vehicle was functioning normally since the electrical engine was switching to the gasoline engine. The failure occurred continuously. The VIN was unknown. The failure mileage was 2,500.

- Scarsdale, NY, USA

The contact owns a 2010 Toyota Prius. While the contact was driving 20 mph, she attempted to stop the vehicle and noticed hesitation when the brake pedal was engaged. The vehicle has not been diagnosed by the dealership and there were no prior warnings. The current and failure mileages were 2747.

- Longmont, CO, USA

The contact owns a 2010 Toyota Prius. While driving approximately 25 mph over rough, bumpy surface or a pothole and trying to depress the brake pedal, the vehicle seemed to seize and glided instead of slowing down. The failure occurred on one occasion. He called the dealer and was told that there was nothing they could do about the failure. He had not spoken with the manufacturer to-date. The vehicle had not been repaired at the time of the complaint. The current mileage was approximately 150. The failure mileage was approximately 100.

- Glencoe, IL, USA

The contact owns a 2010 Toyota Prius. Whenever he engaged the brake pedal while driving various speeds ranging from 5 mph or higher over a pothole, a bump in the road, ice or any change in the road surface the vehicle momentarily accelerated before the brakes would engage. He also stated that he heard a rattling noise within the engine compartment after the vehicle was started. The dealer was contacted and a diagnostic test was performed but produced no codes. The failure could not be duplicated and the vehicle was released to the owner. No repairs were made to the vehicle. There were no recalls. The failure mileage was 2,000 and the current was 8,000.

- Bloomington , IN, USA