Brake Light On problems of the 2009 Toyota Prius

I was driving when the abs, brake system, and parking brake light turned on. The brakes became very mushy, I was trying to stop, and I could hear the brake actuator motor buzzing and making a groaning noise.

Upon starting the vehicle it makes a high-pitched beep, followed by a buzzing sound that repeats every five to eight seconds. The dashboard displays the tps, abs, vsc, and brake lights. When putting the vehicle in drive, the high-pitch sound returns for one to two minutes. During that time the brake pedal becomes impossible to depress. If the engaged, the vehicle does not stop until the brake pressure returns. Once the sound stops, the brake pressure returns to normal. Diagnosis from Toyota shows: code c1256 = accumulator low pressure. Code c1391 abnormal leak of accumulator pressure. Estimate for repairs = $2,811. 72. At present the vehicle is unsafe to operate as Toyota advised, in the vehicle's current condition the brake system could fail at any time.

My abs, traction control, and master brake light came up on the dash. The problem is a failing brake actuator, which is a known issue by Toyota. Spoke to Toyota a dwas told that I am out of their ten year extended warrenty for this issue and it would be a roughly $2700 repair. Why this brake actuator was never placed as a recall is beyond me as a complete failure is an accident waiting to happen. Toyota refuses to budge on their "extended" warrenty for a known defective part, that would cause a serious hazard if it failed while driving.

Brake warning light broken brake actuator system Toyota dealer refusing to fix this safety hazard under the warranty enhancement notification zg1.

Brake actuator not working properly when I use the diagnostic settings it works but then after a while it stops working again. Was going 50 on the highway when brakes stopped working almost wrecked. Brake light (!) light abs light and vsc light are all on.

The abs and other brake warning lights go on randomly and the brakes become stiff. Took the vehicle to the Toyota dealership and they said it is due to the brake actuator assembly. The abs actuator assembly part was part of an extended Toyota warranty under notification zg1. However my vehicle just missed the deadline for the warranty by three months. This is a safety issue for Toyota as they know this part has a high failure rate. Warranty should be extended in order to cover repairs. Filed a case with Toyota, case # 1901312287.

My car has been intermittently displaying abs vsc and brake warning lights. When they are on there is no brake regeneration. The lights have come on and gone off and now are on again. Getting obd code c1391 (abnormal leak in accumulator) my vehicle is just a small amount over mileage to cover this under enhanced warranty but Toyota knows they have a brake accumulator problem and wants 3k to fix what should have been a recall long ago. Have called and Toyota will not help.

Prius dashboard lights up with brake light, abs and vsc light. Ran diagnostic codes and took to dealership- said vehicle was part of brake actuator manufacturer malfunction. Dealership would not resolve issue despite acknowledging that it was a manufacture defect. Concerned for my safety because brakes are not working well. Called customer service and they wont do anything.

I was driving my 2009 Toyota Prius on a very cold day (roughly 10 to 20 degrees f). The red brake warning light was on, along with the abs, vcs and yellow "!" lights. The brakes were extremely soft for about the first 5-10 minutes of operation. I would push the brake pedal as far as it would go (it would not go all the way to the floor) and the brakes would seems to be engaging at about 30%-50% of their normal stopping power. After the vehicle warmed up, the warning lights on the dash went away and the brakes began operating normally. The following week, my wife was driving the vehicle on another very cold day (again probably about 10 degrees). She stated that the above mentioned lights stayed on for her entire commute (less than 10 minutes) but that when she arrived to work, her brakes were not working. She described that she pressed the brake pedal as far as it would go, but the brakes did not seem to be fully engaging. She stated that she nearly hit a wall as she was pulling into the parking lot at her work. I have found similar issues listed on Prius forums online. Perhaps it is a electrical or computer problem as opposed to a problem with the brakes. We have never had the problem when the temperature was above 25 degrees.

Coming out of the grocery store I started my 2009 Toyota Prius and I notice that it lost braking power and the abs,vsc,(!),and emergency brake lights stay on. I did some research and there is a recall for 2009 Prius concerning this problem, but only on vehicles manufactured between 3/2009-10/2009 mine was manufacture on 10/2008. I think the recall should be on all 2009 models regardless of manufacturing date. There are many owners online complaining about this issue. My wife and children where scared, and I could of easily hurt someone walking in front of my car at the grocery's store parking lot. I can't drive this car anymore please extend the recall to all 2009 models regardless of manufacturing date. Thank you.

One week after being at the dealership for its routine oil/vehicle check-up (55,000-60,000), my red brake light, the yellow warning sign and the abs lights come up on my dashboard. Towed it back to dealership since the breaks didn't work. They found I needed to change my brake actuator and the solenoid that is stuck. According to what I've read, this should not happen period paragraph but if it does it would be on a much older vehicle with a lot more miles with a stop and go history. According to the customer service representative at the dealership this is a malfunction of the part. When I called Toyota they gave me the go around about being out of warranty. I need help. Also there is a reflective line of light that shines on the driver side of the window from my dashboard.

I own a 2009 Toyota Prius and notice a delay in braking specially over bumpy roads or ice, also at higher speeds. When you apply the brake the vsc light comes on in the dashboard and the car travels freely for a couple of meters sometimes even accelerating a bit before the brakes actually engage. This is observed very often.

2009 Toyota Prius hit pothole and car lurches forward. Brake light comes on for a second.

The contact owns a 2009 Toyota Prius. While driving 2 mph in reverse, the contact shifted the vehicle into drive and noticed that the vehicle was still reversing. The vehicle was then shifted back into reverse and then back into drive before the vehicle would drive forward. The failure has occurred on three different occasions the vehicle had not been diagnosed by the dealer. He contact also stated that when pressing the start button the vehicle would not start. The brake light also illuminates on the instrument panel even though the brakes are not engaged. The failure mileage was 5000 and the current mileage was 10000.

I am writing to let you know of a problem I am experiencing with a 2009 Toyota Prius that I purchased new just one week ago and which still has less than 500 miles on it. A couple of days ago I was approaching a stop at an intersection, in town where my speed had been only about 15 mph. While my foot was on the brake, just prior to a full stop, the car accelerated on its own. I kept my foot on the brake, pressing hard, and the brake eventually overrode the accelerator and stopped. Looking at the dash I saw that the abs brake light flashed on briefly. It was a sunny day, no rain, no slick surface. No one was in front of me, so no damage to me or anyone else. Another incident happened this morning in my garage. I got into the Prius, foot on the brake, pushed the power button, and then a moment later, still in park, I felt a surge. The car did not lunge forward, but I strongly felt the revving and surge of power, and the car lifted from the power. These incidents caused me to search the web for similar experience of others, and I have found many, some with severe consequences. I would also like to add that in hindsight I realize that two other things I have noticed about the brakes might be important to relate. I sometimes hear a slight grinding disk sound when I brake, and I have on a few occasions noticed that the brakes are skipping and the abs engaging, as if I were on a slippery or graveled surface. Yet that was never the case; the road conditions were dry and tar was in good condition. I know this because I looked back each time to see what might have caused the brakes to act strangely. There was no apparent cause. In retrospect, after having experienced the acceleration at the stop sign, I realize that these other odd braking issues might be symptoms of the bigger braking issue.

Brake warning light went on the dash. Brought the car in and dealership said it was a bad brake actuator. Said it would cost almost $3000 to repair and said that there was a extended warranty on the part that expired. If nothing screams of a recall as a problem with brakes, I don' know what would.