Brake Light On problems of the 2011 Toyota Prius

Brake light, abs,slip indicator,brake system warnig light system all came on while driving at high velocity [75m/h] in the rain and lost 75% of the braking power plus the car started to slide. Needless to say this was a catastrophic failure of the entire brake system on a car that has a customer support program notification from Toyota[zjb] that was sent to me with a warning of such occurrence. This is down right irresponsible to a major car manufacturer to allow these vehicles on the road without testing the entire system on each of these affected vehicles and with for a catastrophic failure to occur and cause public harm or even death. I had just taken the vehicle for service a few weeks prior where I explained the service advisor of an issue with brake pulsation. However, the entire brake system was not throughly checked and was just told that its the front rotors that are uneven, thank god I did not fully loose control of the vehicle and cause a catastrophic accident as it would have resulted in bodily harm to my family. I expect this federal government agency to use it's authority to prevent such occurrence to the tax paying citizens of this nation.

2011 Toyota Prius. Consumer writes in regards to defective brakes and electrical issues. The consumer stated the master warning light, air bag light, slip indicator light, and brake sysytem light all illuminated.

Had the traction, abs, and brake lights all pop on. Braking feels a little different now. C1391 code was given by mechanic. He is talking about brake parts that will cost parts and labor around $2500. I can't afford this and I need a car to drive, so hoping no wrecks. We are a Toyota family with 4 now in the family. Called to complain to Toyota headquarters and they said out of warranty, but they did recall the 2010 models, even though the same problem is with the 2010-2015 and some other Toyotas. They basically blew me off.

A few weeks ago my brake and abs lights came on and my brake pedal changed and became spongy. Since I was still able to brake, I kept driving the car and became used to the spongy pedal. Then the other day I was returning home from work when the car in front of me suddenly hit his brakes. I had to quickly hit mine as well and the brakes locked up sending the car sharply to the right and I crashed into the guard rail causing $1500 worth of damage. I picked up the car today after having the damage repaired but I still have the same problem.

Traction control, abs and brake lights came on today and brake pressure dropped severely while driving on the highway. Not safe to drive.

The abs traction, control and brake light come on for 2 to 3 hours. Then the light will go off throughout the day and then the lights will pop back on and I just went to stop my car went sideways scariest moment ever . The other vehicle on the 2 lane road I was on swerved off the road to avoid hitting me because the vehicle went sideways . At this time all 3 lights were lit up . I drive about 10 hours a day . Please investigate. (nearly died as well as the guy in the other vehicle).

The emergency brake light, abs, and traction lights illuminated on the dashboard. Took the car into the dealer and they reported that the brake booster and master cylinder needed to be replaced. The car was stationary when the lights initially came on and the lights stayed on while it was moving (highway and city streets). The 2010 Toyota Prius was recalled for the same problem. It seems the 2011 continues to have the same problem.

Brake light, antilock light, vehicle stability light, and yellow trains came on. Having problem with braking. Does not not seem to brake as good. It is very dangerous when driving.

All of the brake lights on my dash lit up, brakes weren't working well, took it to the repair shop and was told it was my brake actuator.

The attraction brake and abs lights come on, the brake become spongey and fail to stop the vehicle , I almost had an accident while this happens while I was driving the vehicle.

My car was parked on the street,I got into it, turned it on, shifted to driving and started proceeding forward. I then noticed 3 lights (the abs light, brake light, and traction control light) suddenly appeared on the dashboard. Nothing out of the ordinary occurred prior to the light coming on, it just suddenly appeared. The error code in the computer system read c1391. The details read there was "abnormal leak in accumulator". The car no longer drives safely. If the brakes are pressed suddenly the car skids instead of slowing down. In order for the car to come to a complete stop a lot more pressure has to be applied to the brake compared to before abs problem. The stopping distance has increased by approximately twice its length. The car is no longer capable of sharp turns, the back end of the car skids dangerously left or right while turning, depending on the direction the driver is turning. The braking, handling and control of the car decreases so much when the roads are wet that at times the car skids even when going at a cautious speed in rain. For my safety and for others I drive in "b" instead of "d" when it rains.

Brake accumulator failure. Specifically repair t-sb-0079-18 abs, traction, brake lights on. Brakes not as responsive/spongey. No regenerative energy from braking.

While driving down the highway or interstate, my traction warning light, the brake light, and the abs warning light all came on, and the brakes became hard to press. When letting off the brake, there was an airy, suction sound. After a while, while driving, all of the warning lights went off, and the brake pressure normalized. There is still an airy sound when I use the brake pedal, though, which always seems to be there, even when the warning lights are off. This has happened about 4 times within the past six months. I had a diagnostic test run, and it gave code #1391, leakage in accumulator abnormal, which pointed to an internal leak in the brake booster/master cylinder assembly. I noticed that Toyota has issued recalls for this same problem in 2010 and prior Prius models, but mine does not qualify because it is a 2011. Since this issue has not been resolved and appears to be a defect in Toyota's brake booster assembly, I would like to see this recall extended to cover models beyond 2010.

I was on driving on the freeway when suddenly traction control light was on and brakes seemed to have locked. The conditions of the road were dry and I was driving the speed limit. This occured on a few different occasions. One day brake light, abs and traction light all appeared. Took it into Toyota dealership and was informed it was brake booster.

Brake accentuator failed - no warning and traction control/brake light/abs warning lights all illuminated. Hard breaking test @25 mph confirms abs not working (I. E. Tires skid) and breaking distance adversely impacted for normal braking. Hybrid system charging from braking is diminished.

Brake actuator failure. Abs, traction control, and brake light all on dashboard. The car has no regenerative braking. Issue occured randomly while in motion.

While driving on the highway all the break lights came on and stayed on brake, abs and skid lights on also noise under hood by brake master cylinder. Took it in to the dealership and they verified abs / brake lights on). Told me I needed to replace brake actuator / brake booster pump / bleed / and re-flash system . Found out this also has been happening on the 2009 and the 2010 Toyota Prius hybrid and they have a recall out on this. I was told at the dealership that it was unsafe to drive the vehicle with this occurring.

The problem my car experienced happened while the vehicle was in motion on I-110 in pensacola, florida and presented itself abruptly (through the car's warning indicators at least) on Friday, August 31st headed to pensacola beach for labor day weekend from our home in baton rouge, louisiana. All the car's brake warning lights came on simultaneously and without warning, the master brake light, the abs light, five different lights in all. I pulled off the interstate, went to an autozone store, checked the brake fluid level and brake pads (all looked nominal) and got the car's computer checked for warning codes (none came up). Seeing nothing catastrophic, but being unsure of whether our car was really safe to drive even though the brakes still felt functional (if a bit off), we got the car back to baton rouge and brought it to the local Toyota dealership's (all-star Toyota, on airline highway) service department. We had noticed for some weeks prior increasingly frequent buzzing sounds � anyone with a Prius knows these, such as when you turn the car off � made by (I'm told) the car's brake actuator pressurizing the brake fluid. This escalating frequency of the noise, and a certain constant �pulsing� of the sound when the brake was slightly applied, but not pushed down to the floor � I now understand to be symptomatic of a failing brake actuator. Following some research, I discovered in 2013 Toyota issued a recall for thousands of 2010 Prius and other Toyota automobiles for a problem with brake actuators; also, in 2016, a warranty extension and part replacement was offered to hundreds of thousands of 2004 through 2009 Toyota Prius vehicles for problems with brake actuators. In that more recent matter, owners were offered a warranty extension to 10 years after first use of the car or 150,000 miles, or unlimited mileage or age up to the end of 2017.

Abs brake light and traction lights are on. C1391 internal failure in brake actuator assembly.

While in motion when I pressed the brakes the pedal went to the floor. Brakes failed. Rapid beeping with brake light on. I pushed on the brakes and there was nothing. I did some research and this vehicles are having a problem with the brake booster assy. There is a recall for the same parts for the 2010 Prius, not 2011 - 2015.

Three weeks ago the brakes failed at a stop light on a city street and the abs and brake lights came on in the dash. The brake fluid appeared to be low so we opened a new bottle of fluid and filled the reservoir which seemed to temporarily remedy problem and nothing could be diagnosed because no lights were on in dash. The exact same thing happened again with the brakes failing and the dash lights coming on while at a red light on a city street. We had to have vehicle towed and were told it was the master cylinder assembly, booster pump etc. And wasn't covered under warranty at $6400. The car has 82,925 miles and has been maintained.