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.