Traction control, abs and brake lights came on today and brake pressure dropped severely while driving on the highway. not safe to drive.
Tl* the contact owns a 2011 toyota prius. while driving a squilling came from the brakes. the braking distance was extended. the contact was concern the vehicle unsafe to drive. the contact stated that while operating the vehicle a squilling noise was present coming from the front of the vehicle and when pressing the brake pedal the braking distance was extended. the vehicle was taken to the local service center server co toyota(2841 pukoloa, hi) who diagnosed that the brake actuator was faulty and needed to be replaced. the vehicle was not yet repaired. the manufacturer was not notified of the failure. the failure mileage was 144,000.
When i was about to exit while driving on freeway, myabs, brake, tcs light is suddenly on, the brake need power to push and regenerate charger not working when brake pedal push, and make mpg drop.
When driving over uneven surfaces like potholes and applying my breaks, i feel a delayed response until after i'm out of the pothole. in other words; i apply breaks, go over pot hole, breaks disengage even though the pedal is pressed, and reengaged once i'm on a smooth surface. this has been happening since i first bought my car five years ago, but i always thought it was me over thinking it.
I have been lucky to miss closed-call hitting the car in front of me after skidding. when i apply brakes going down the ramp, the car skids and the brake doesn't stop the car until i get pretty close to the car in front of me. i am more concerned because some parts of the road are uneven where i live that increases the chance of brake failure. it happens on surface roads when there is a bump too. the braking distance increase when the street is wet.
Brake, traction control, tire pressure, abs lights all come on while driving. took to shop. claims it's the brake booster/ actuator problem. customer support program
Warning lights for traction control, brake, ave all appeared, and then braking dramatically changed. almost like not having power brakes. lights went off and normal brake finction returned. the warning indicator lights go on and off, at random. code c1391 shows when scanned. this is same symptom as exhibited by 2010 model year priuses covered by recall. mine is 2011, exact same issue but not covered by recall. problem has occurred at low 5-25 mph and highway speeds (55-70 mph) this is very dangerous as if this happens at high speed (highway) and the problem occurs there is a sudden change in braking quality an accident may result. this happens when the vehicle is moving, at any speed.
I have an early year 2011 toyota prius, the break booster and master cylinder assembly work intermediately. sometimes it shows errors with lights illuminated on the dashboard and brakes have a lot of play and are spongy and other times they work perfectly normally. the vehicle was in motion and when i went to use the breaks in a traffic situation they ended up hardly working putting myself in a higher risk for a collision and putting my life endanger.
My 2011 prius very recently has started making audibly noise while pressing the brake pedal, whether in motion or stopped. this noise contains continuous whirring, whining and loud clicking noise. these noises where not seen before completely. i spoke to dealer mentioning a tsb pertaining to this particular issue in specific and was told nothing can be done until it fails completely, which is bad, as i have a family of 3 and god forbid if this were to happen while driving on freeway, a serious safety hazard and toyota dealer (rudy luther) response is irresponsible. i am actually worried more now on waiting for the brakes to fail. this loud continuous clicking noises occurs the moment car is turned on and the noises lingers on for short while after the car is turned off, at moments i have to press on the brakes really harder than usual to get the car slowed and is a tremendous panicky situation. i am registering and requesting for this to be looked immediately before any catastrophe.
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.
When i brake on an uneven surface (potholes, bumps, etc) the car will sometimes jump forwards. i am unsure whether it is referred to as brakes slipping but it is exactly the same thing that i've read happening to many people. it was an issue in the 2010, which led to a recall, yet there is no recall on the 2011. it doesn't make any sense, people have said that the actuator was the part that needed replacing, yet it is a $3-4k part and should not be left up to the consumer. this is a safety issue and is a known problem and needs to be addressed by toyota. it has been happening ever since i've owned the car. i have been lucky so far that it hasn't accelerated me into another car or person.
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.
When breaking and still moving, the car will accelerate momentarily resulting in going faster for a second or two. this happened randomly over the years and may in some instances be related to hitting an irregularity in the road, but i cannot be sure. it has not caused an accident, but is strong enough that it could. i'm a pretty safe driver so tend not to ride on the tail of the car in front of me. i have not kept track of when it happens.
I'm constantly hearing a barking/ purging noise coming from the brake accumulator pump whenever i do hard braking. whenever i hit potholes or rough roads, the car would still rolls during braking as if the abs is getting triggered. i was quoted by toyota dealer of an estimate of $3000 to replace the brake accumulator pump and booster. i'm afraid that the brakes would fail while driving.
The vehicle was in motion. several warning lights on the dash came on at once, and the brakes required significant additional pressure to operate. we drove he vehicle home, and then to a nearby repair shop. we were informed that the brake booster had an internal leak, and required replacement. this is the same part that was addressed in a customer support program for the 2010 my prius; however, the 0211 prius is not covered. 110,000 miles.
Toyota had a customer support program zjb for default brake booster/master cylinders on the 2010 prius models. i have a 2011 prius that has been diagnosed with the same problem and there is no customer support offered. this warranty enhancement on the 2010 models is good thru 11/30/19 regardless of mileage. even though my vehicle has the exact problem there is no recognition for support due to the year of this vehicle. i was not aware i even had a problem until i took it to the dealer for a software recall update. we were experiencing heavy rain and my indicator lights came on which is why they checked this and confirmed the issue although my brakes are working fine. i am not understanding why toyota is not honoring the fix for the default or why after discovering this issue in 2010 the 2011 would not be considered. i would appreciate some help in this matter.
The car stop working all the dash lights stop working ,the brakes start getting harder and the don't stop at all and beeping without stop that noise and the hibryd system stop working after i living for some recalls repairs and the want me to fix the car to pay and i know is not my fault everything is because is this car is all electronic system.never on my live i have this problem with my other cars.only with this one and now they one me to pay for something the company makes wrong.this is not fair at all.before i was recomended this car but right now people ask me and i have to talk negative situation about it.
Abs actuator malfunction
The following is a summary of how i became aware of the power booster and master cylinder problem with my 2011 toyota prius. 'upon discovery of multiple lights displayed on dashboard such as brake, abs system & traction lights, during driving the braking performance has changed drastically & the car no longer performs braking function adequately. unable to rely on safe braking due to brake resistance felt with stiffening in which pedal depresses deeply & more time is required to come to a full stop. when braking the hybrid battery does not charge & runs dangerously low resulting in damage to the hybrid battery which can lead to substantial cost to replace the battery. 'car brought to firestone for diagnostics. upon further inspection by their technician it was determined that the power brake booster/master cylinder was damaged & malfunctioning and was in need of replacement. informed repair would be in excess of $1,500.00. see enclosed supportive documentation from firestone diagnostics.
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.
Tl* the contact owns a 2011 toyota prius. while driving 65 mph, the brake pedal was applied and was stiff. the contact had to tap the brake pedal to slow down the vehicle. in addition, the brake and abs indicators were illuminated. the vehicle was taken to charles maund toyota (8400 research blvd, austin, tx 78758 (866) 797-4354) where it was diagnosed that the brake actuator needed to be replaced. the vehicle was repaired. the manufacturer was contacted and provided case number: 1901140996. no further assistance was provided. the failure mileage was 119,384. *tt*jb
Brake accumulator failure. specifically repair t-sb-0079-18 abs, traction, brake lights on. brakes not as responsive/spongey. no regenerative energy from braking
Brake booster and actuator failed and error code c1391. vehicle is unsafe to drive and toyota knows this problem because of the number of cases involved with this issue. the year prior saw a massive recall of 87,000 vehicles with the same issue. the same issue has carried over and toyota refuses to be held responsible for this issue.
Brake actuator has gone out giving a code of c1391. i have had the car less than a year and the brakes are now grabby and not functioning properly. this is a known problem with the gen 2 prius (my previous car) and was covered under an extended warranty. apparently the gen 3 prius has the same issue and toyota has extended the warranty of the 2010 prius to the manufacturing date of 11/2010. my prius was manufactured in 12/2010 and i was just notified it would be $4000 to fix the issue that is a known manufacturing defect. apparently toyota didn't fix the problem the first time and it's a direct safety issue when the brakes don't work as intended.
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.
Abs lights on ,tracks warning lights on and vsc lights on .its a serious problem. toyota should fix it . toyota should own its problem
Driving vehicle down highway, tapped brakes but brakes did not work, all the lights on my dash lit up. i lost traction in brakes causing vehicle to lose control.
The traction control light, antilock brake system not funtion and the light stays on
4 lights came on my dashboard: brakes, abs, etc. so i took the car to the dealership. they said i need a new brake accumulator but it isn't covered and is a $3500 repair. i see that the 2010 prius was recalled for this same part but they won't cover mine.
The following dashboard lights came on on our vehicle at the same time:traction mode, emergency brake, abs, and brake system warning light. since the lights have came on, i have noticed that i have to press down further down on the brake to stop the vehicle. my stopping distance is further now as well.
My car only had 120k miles and the break boostor and actuator breaks down while we were on the road. my wife drives the car with my 3-childrens. she was almost hit the other car on highway because the breaks system stops working at normal mode. the dash board shows all kinds of break, traction control, and abs lights . this is a life threatning issue and toyot needs to replace this part with no charge becasue it has a manufacturing defects and thousands of prius owner has the same issu.
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.
Got in car one morning and all the brake / traction control system related lights are on. turned car off, waited 10 minutes restarted car and lights are still on. tested brake function in yard, reduced but still able to get car stopped. took it to shop and read codes, came back as the actuator which is already recalled on previous year model pruis', obviously they did not fix the issue on the early gen 3 models (2010 & 2011). i have found multiple other people with gen-3's that have had the same issue os these should be included in the gen-2 recall because they are having the same issue. with it being a dealer only part at $4500-$5000 (parts and labor) to fix on a car that's only worth about $10,000 i wonder if it's really worth fixing. at this point the car is parked because with the diminished braking performance i don't feel safe driving it.
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 traction control, abs light and warning light all came which i believe all to be a safety issue
The brakes temporarily disengaged sometimes when braking. at around 100,000 miles, the brake accumulator would constantly make noises while driving and after shutting the car off. eventually the brake accumulator and brake booster failed completely at 117,000 miles, costing around $4,000 to repair.
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.
Unknown cause. the breaks temporarily disengage (for anywhere between 1-3 seconds) when the car encounters a small bump or pot-hole in the road, while breaking downhill. usually happens when breaking hard on a declined freeway off-ramp. this has almost caused me to rear-end another vehicle on multiple occasions.
The abs/brake/skid/warning triangle on. my 2011 prius iii is 121k mile. this went on/off for a few days then it was on the whole time. the brake seems to loose the hydraulic power brake. i feel like the brakes feel weird whenever hit small bump, brake just failed for a second. i went to toyota dealership they said it's the actuator that need to be replaced and it's expensive $2-3k. they said it need to be fix soon because brake might fail at any time. there seems to be a warranty enhancement for the 2010 and older but not 2011 and newer. seems like toyota still have the same issue with newer model, not fixed yet. please bring this issue up for safety reason.
The brakes are pumping slow speeds and the vehicle makes much more noise. the car makes buzzing sound every 30 seconds or sooner. a repair person said it is the abs actuator that is about to fail.
While driving on the highway, without warning, i lost power assisted breaking ability - accompanied by a number of dashboard warning lights. i was able to safely stop the vehicle using manual breaking. i had the code checked and have learned that the (code 1391) brake accumulator failure is a common issue in the prius and has been subject to a recall/replacement for the years prior to my make (i believe 2008-2010). clearly this is still an issue and the sudden/no-warning failure of the system causes an alarming and potentially dangerous loss of breaking control during high speed driving. luckily, i was not using the breaks at the time of the failure and was able to determine that the manual break pads were serviceable but i needed to rapidly increase the pressure on my breaks to slow down sufficiently to avoid an accident.
Tl* the contact owns a 2011 toyota prius. while driving approximately 40-50 mph, the brake pedal was depressed and an abnormal noise was heard. the contact stated that the abs warning indicator illuminated and the brake pedal was difficult to depress. the vehicle was not taken to be diagnosed or repaired. marietta toyota (750 cobb pkwy s, marietta, ga 30060, (770) 422-1490) was notified. the manufacturer was not contacted. the approximate failure mileage was 182,000.
Takata recall my 2011 prius has an issue where the brake becomes spongy at random while driving under normal conditions. the brake, abs, and traction control lights all illuminate simultaneously. after resetting the computer, the issue comes back within 10-30 minutes of driving at random. toyota told me it is a $3,000 fix and there is no recall for my year. my car has 110,393 miles.
On uneven road surfaces (washboard road, many small potholes, gravel roads, rough road shoulders) brakes would give out if braking hard. if felt like once abs kicked in the brakes would get almost completely released. the car would brake just fine on flat surfaces, wet or dry. i have multiple vehicles and know how abs brakes work but thought the prius brakes were just a bit more sensitive and i have to watch my distances more carefully and avoid hard stops. then on april 23, 2018 the car started to make some strange noise but no dashboard lights came on. i continued driving and noticed the brakes were working only intermittently. after i almost crashed when attempting to break in traffic i limped back home and took the car to the dealership. the repairs to replace brake pump and cylinder assemblies cost $4,193.31 but the car was driveable again. however, i noticed that the repairs also corrected the abs problem that was present since the car was new. i think anyone who drives a 2011+ prius should get their brakes checked for emergency braking where brakes stop working thus allowing the car plow ahead even if the brake pedal is down to the floor.
I was getting on the interstate and all of a sudden i lost power and my dash lite up check hybrid system /abs/ breaks. i can not drive my car because it has no power please help thank you
Tl* the contact owns a 2011 toyota prius. while driving various low speeds, the abs and traction indicators illuminated without warning. in addition, when the brake pedal was depressed, the vehicle lunged forward. the dealer (universal toyota in san antonio, texas) diagnosed that the brake booster and the pump for the booster/accumulator were faulty and needed to be replaced. the vehicle was not repaired. the manufacturer was made aware of the failure and provided the contact with case number: 180-4162-158. the failure mileage was 98,000.