2010 Toyota Prius brakes jerking in fanning on rough roads. I have call dealership but have not heard back.C all my ins. Company in was told not to dive the car. Now I have a car that keep be used.

- Chillicothe, OH, USA

After stopping the car, then either moving forward or reversing, brakes will grab. Brake grab is strong enough that it feels like I've slammed on the brakes when they are barely touched. In order to correct, I put the car in park, then either D or R. this has happened about 10 times since I bought the car in August 2009.

- Miami, FL, USA

The contact owns a 2010 Toyota Prius. Whenever the contact attempted to engage the brake pedal while driving 35 mph when the vehicle lunged forward and then it accelerated. The vehicle was taken to the dealer and advised that the vehicle was operating normally for since it is equipped with an electrical engine switch. The failure has occurred repeatedly. The failure mileage was 6,000.

- Blackwood, NJ, USA

I own a 2010 Toyota Prius, which I purchased in August, 2009. I have experienced a braking problem at lease 6 times since then. When I brake while driving over rough roads including driving over metal cover plates in roads, I lose all my brakes for a second or so. It feels like I have hit a patch of ice. It is very scary, and really gets your attention.

- Cincinnati, OH, USA

Upon applying the brakes when I hit rough road, pot hole, debris, unlevel pavement, they seem to slip. I don't slow down like I want the car to, I fishtail a little and the stability control comes on. This has happened 3 or 4 times since I purchased the car. 2010 Toyota Prius.

- Cary, NC, USA

I purchased a 2010 Toyota Prius about 6 weeks ago and have experienced a brake surge problem at least three times. In each instance I was traveling about 20 mph and had applied the brakes. When the car hit a bump in the pavement it surged forward for about 0.5 second before the brakes grabbed again. The road surface was dry on each occasion and my impression at the time was that the brakes just let go.

- Gardiner, NY, USA

Our 2010 Prius has a problem with the brakes when going over bumpy roads.

- San Diego, CA, USA

When our 2010 Prius hits a pothole and I brake, it lunges forward for a second. This has happened 3 times.

- Washington, DC, USA

As owner of a 2010 Toyota Prius with about 10,000 miles on it, my wife (the regular driver) and myself have experienced an anomaly in brake operation on several occasions. Each occasion involves either hitting a bump in the road while braking or being on wet pavement while braking. When this happens, if feels as if the brakes release for a fraction of a second (creating a short sensation of acceleration) and then resume operation. I don't think the car is actually accelerating in that moment. My theory is that while braking, a single wheel looses traction (and perhaps momentarily stops) and then the system releases all wheels for a moment before regular braking resumes. The fact that you are sitting in the car with your foot applying pressure on the brake makes this very attention getting. This has occurred several times since getting the car last August.

- Plano, TX, USA

My 2010 Toyota Prius, purchased in July 2009, experiences braking problems on wet or slightly bumpy roads. When I hit the brake, the car jumps forward in these conditions. If I were tailgating the car before me, it could crash.

- Elkins Park, PA, USA

Sometimes when I'm braking it feels like a surge in power of my Toyota Prius - 2010.

- Cambridge, MA, USA

Brakes fail momentarily when driving over potholes and bumps.

- Lawrence, KS, USA

My Prius loses its braking ability when I hit a pothole or if I drive over a sewer grate. I've owned the car since July 2009, it is a 2010 model. It also happens when I drive over bumps in the road. This has happened several times since July. It seems to happen more in wet weather.

- Rockville Centre, NY, USA

The contact owns a 2010 Toyota Prius. The contact stated that the brakes were ultra-sensitive and while driving 5 mph in reverse and lightly depressed the pedal the vehicle lunged forward as if she made an abrupt stop. Occasionally, she had to push the brake pedal extremely hard to stop the vehicle. She has not spoken to the dealer nor the manufacturer to-date. The vehicle had not been repaired at the time of the complaint. The current mileage was 3,740. The failure mileage was approximately 500.

- North Hollywood, CA, USA

Pressing brakes while turning and hitting a pothole causes car to surge forward.

- Gaithersburg, MD, USA

I have experienced brake issues about 6 times, and my wife has had it happen to her twice, since I bought my 2010 Prius at the end of August 2009. The brake problem usually will happen when braking on an uneven surface such as a pothole or a bumpy road. The issue is that the brakes will momentarily stop working and you get a jerking/speeding up feeling.

- Simi Valley, CA, USA

2010 Toyota Prius: After turning car on, taking emergency brake off, foot on brake pedal fully depressed, shifting from park into reverse, the car will begin to move on its own without me taking foot off brake. Have to shift it back to park and turn it off for it to stop. Toyota service said "this is normal". has happened 8 times, most recent Jan 15th. All on level surfaces. Only happens if car is on in electric mode only, not with the engine on.

- Santa Monica, CA, USA

When applying brakes on 2010 Prius (purchased in Sept 2009), the car lurches forward when it hits a bump in the road. This is a reproducible behavior and has been observed since shortly after purchase.

- Walnut Creek, CA, USA

I couldn't stop my 2010 Prius at a stop. The brakes wouldn't stop the vehicle.

- Princeton, NJ, USA

When driving over uneven terrain (ie.; railroad tracks, bumps in the road) my 2010 Prius seems to accelerate. I read about the brakes failing... but it really feels like it is accelerating too. It is very scary when this happens as it feels that you will be thrushed into whatever might be in front of you.

- Columbus, GA, USA