Brake booster failed. this is a known issue to mazda. mazda said to bring into dealer for assessment and consideration for goodwill warranty replacement. dealer determined brake booster failed and mazda then denied goodwill claim. i paid dealer to fix the issue. this is a major safety issue and should have been recalled, not granted an extended warranty.
Brake pedal action feels spongy, soft. requires extra force to stop the car when moving on city streets.
So disappointed in nhtsa for not requiring mazda to recall the brake booster failure! nhtsa's investigation into the brake booster failure was closed when mazda agreed to an extended warranty for this manufacturing safety defect. had the nhtsa pushed for a recall notice, we would have been alerted to this safety defect and could have had it repaired (it is known to fail around 62,000 miles). we contacted mazda today about the warranty only to be told our vehicle warranty expired less than 3 months ago, resulting in mazda's refusal to cover a known safety defect. mazda's lack of commitment to resolving this safety issue is shocking. nhtsa's acceptance of mazda extending its warranty for this known safety issue is disheartening as well. a manufacturing defect is a manufacturing defect; the problem should have been addressed when it failed or, at the very least, recalled and replaced. a time limit should not have been an option for a safety issue (or an out for mazda). perhaps it is time for nhtsa to reopen its investigation to protect the consumers against a known safety defect. mazda certainly doesn't back it's product when it comes to safety issues!
When pushing the brakes the pedal is 'hard' as if the pedal was on the floor there's a hissing noise like air is leaking. if you need to make a sudden stop it does not happen the brakes are so hard the car won't stop!! this defect happened suddenly there was no gradual warning !
Tl* the contact owns a 2012 mazda cx-9. while attempting to accelerate from a traffic light, the accelerator pedal was depressed; however, the vehicle failed to respond. the contact stated that there were no warning indicators before or after the failure. the brake pedal also became extremely difficult to depress. the vehicle was towed to continental mazda (located at 2363 aurora ave, naperville, il 60540, (630) 352-5900) where it was diagnosed that coolant entered the engine oil and caused the engine to fail. the contact was informed that the engine needed to be replaced. the vehicle was not repaired. the manufacturer was notified and provided case number: 1-2189354066. the approximate failure mileage was 52,000.
Applying brakes for 1-2 seconds resulted in no immediate stopping, only resistance from the pedal. after 1-2 seconds, the brakes were aggressivly applied. this resulted in "running a stop sign" and stopping the in middle of an intersection. this occurred on a city street multiple times before getting the car to a repair shop. on highways, braking had to begin well in advance to avoid possible crashes. we had to have the master cylinder and brake booster replaced. the vehicle has 55k mile on it.
Brakes slip causing unexpected increase in stopping distance even at low speed. very concerned about family safety. research found issue was noted previously and supposedly closed, but many complaints like mine have been filed since. how many deaths must nhtsa see reported until they take action and recall this admittedly faulty design?
I put my vehicle in the mazda shop last year 2017 for a recall and i mentioned that there was something i felt in my brakes they told me that it may be dust and by driving it will go away,mazda knew about this problem they should have taken care of it then.my vehicle was taken to ourisman mazda dealership about 2 weeks ago and i was told that it was my brake booster & master cylinder labor is $709.47 and the parts are $537.98 and the brake flush is $202.61 total $1450.06 and my warranty expired in october 2018. i then called mazda and i spoke to a ms.jennifer a customer experience representative and she said she would check into it.i then called back to ourisman mazda and spoke to mr.emerson and he told me that he spoke to ms jennifer at mazda and that my out the door price would be $553.16 and they have already ordered the part ,they stated mazda called off the recall and did a 7 year warranty or 90,000 miles my car is neither of them for a 2012, then they wanted to say its because when my car was purchased? then to tell me that when i put my car in last year for a recall if it was not making a problem they were not going to look for one? on these roads,my children,my grand children and the lives of all people i,and i'm sure a lot of people feel .i have been sick and without a loaner car and this is unexceptable i would greatly appreciate your help with this problem.my contact person with ourisman mazda is mr.emerson 240-863-2429 and my contact info for mazda customer rep is jennifer 800-222-5500 prompt 2 then ext 1133 (1-1930090754) the recall needs to be put back on, i was never notified that there was a extended warranty.this can result in serious injury or death,how dare them put a price on this.
Vacuum power brake booster failure, my brakes did not work and my car stalled. there is a warranty extension for this problem - not a recall - i never knew anything about it. a consumer must be notified of a recall but not a warranty extension but this is a very dangerous problem. i fear for the safety of others who may not know about the problem. if you don't know about it you do not ask to have it checked and when it fails you are in danger. i appreciate the warranty extension but i honestly think that i should have been notified. no one was injured and there was no property damage - i believe there should be some reconsideration regarding the decision not to issue a recall on this problem.
The break booster went out without warning and could not stop the vehicle
Brakes were occasionally 'tight', had to be pushed very hard to get the vehicle to stop. when i pushed the brakes it sounded like air was being pushed out. changed pads and brake fluid, flushed the air out. only made it worse. now the brakes are constantly 'tight' and after learning this is a common issue with this vehicle i'm going to replace the brake booster. ridiculous that so many are having this issue and mazda isn't recalling this part!
Tl* the contact owns a 2012 mazda cx-9. while driving 35 mph, the brake pedal was depressed, but failed to engage. the vehicle was examined by an independent mechanic who diagnosed that the power brake booster needed to be replaced. the vehicle was not repaired. the manufacturer was not notified of the failure. the failure mileage was 110,000.
I parked my mazda after coming back from my lunch break and noticed that my brake pedal was a lot harder to push. i also heard a noise coming from what seemed like the pedal. it sounded like i was letting air out of a balloon. after work, while driving in reverse to back out of my parking stall, i noticed the brakes were still very hard to push. the noise was also still happening, but it was louder. i decided not to drive my vehicle until i had it looked at by a mechanic. when my mechanic started my vehicle and began to test drive it, the noise was gone, but he also felt that it was very hard to apply my brakes. the problem was diagnosed as a bad brake booster. after the problem was diagnosed, i researched common complaints with this, and discovered that it is also an issue in the earlier models (2010 and 2011) this is a major safety risk that i would like investigated. thank you!
I was driving to get lunch from work and went to stop at at traffic light on a very busy road and my vehicle wouldn't stop. the pedal was hard and i had to push it all the way down and narrowly missed the vehicle in front of me. i drove carefully back to work and had the vehicle towed to the shop. it was the brake booster. i then did some research on the subject since my vehicle is still fairly new and it seemed odd. i saw so many complaints and it scared me. this needs to be recalled before someone gets seriously hurt!!
Letter from senator gardner on behalf of constituent regarding his concerns about a defective brake design system which exists in the mazda cx-9. *ld *js
Virtually complete loss of braking. quick onset. apparently the same underlying defect as investigated in 2008-2011 (incorrectly closed) and in tsb #ssp93 nhtsa id #10117767. the dealer had the car in for another issue (recall) in march; but did not fix this issue (not allowed to speak of it -- unless the customer brings it up (personal communication 7/3/2018). nhtsa staff should have noticed that the 2012 tsb is essentially a continuation of the core issue from 2008 onward. a failing booster should increase the effort to brake, it should not be permitted to result in complete loss of functionality!
Apply with the brake peddle is pressed. can will continue roll, and in some cases, become very hard to stop. so far, not hit anything, but have had issues on not being able to stop at stop lines even at slow speeds.
The braking system did not function correctly resulting in a crash. brakes were hard and could not be depressed when a vehicle stopped quickly in front of me. took the car to mazda dealership and they informed me that this is a known problem and replaced the brake booster under a "special warranty". this needs to be a safety recall, i was never notified of this safety issue. it is imperative that nhtsb reopen the investigation on this problem as it does not only involve 2010 and 2011 cars and does not only occur in "high ambient temperatures". vehicle was in motion and was slowing on an slight uphill grade. vehicle is 5 years old and has 53,000 miles.
I was going 10mph to stop in front of my daughter's school to pick her up when my brakes were difficult to apply. i had to use both of my feet to stop my car from crashing into the car in front of me. i heard a hissing sound when i applied my brake. the lights on my dash abs lit up and then my car shut off. i was scared and didn't know what happened. i waited a few minutes when no one was in front of me and tried to drive away and it happened again. i left my car at a gas station for a tow truck to get it. i waited for the car to be towed and googled what happened. turns out over 50 other people have had the same issue happen with the same car and year. the brake booster assembly went out between 43000-50000 miles. some scenarios were worse than mine. they were driving faster than 10 mph and could not stop the car in time or at all. there is no recall and the dealership said because i moved to guam from washington i had to pay out of pocket for the repair. i had it replaced and in december and still have not been able to drive it. the part they replaced is faulty too. and they ordered a new part. so its sitting till the part arrives on the island of guam. this site i was on has lots of people with similar issues with the brakes. please look into this. the brakes are a big issue in a car. https://www.carcomplaints.com/mazda/cx-9/2012/brakes/service_brakes.shtml
Brakes do not stop vehicle immediately, it is hard to apply brakes.
Airbag safety recall, transmission switch failure, throttle body failure, brake failure
Power booster master cylinder failure. first, spongy pedal attributed to master cylinder with no fluid present. after refilling hydraulic fluid, pedal was better for a day or two then loud noise coming from cabin in vehicle when pedal is depressed. (it goes to the floor and becomes very loud.) sounds like an identical problem to earlier model year.
Brake booster, hissing noise and hard brake. no warning, brakes don't stop well. brake booster continues losing vacuum pressure as long as the brake is applied. i have noticed online multiple complaints and a known problem.
Hissing sound when braking in motion or parked. when driving up to an intersection after exiting the freeway about 20 mph car would not stop no matter how hard i stepped on the peddle. luckily i was able to slow before hitting the car in front of me. when stopped at a light car lunged forward while my foot was on the brake. this happened again while i was waiting for my daughter at school. it lunged up and nearly hit the car in front of me! scariest thing in the world to not be able to brake!!
When braking the brakes are either hard and do not work or brakes are spongy, will slow vehicle, but will not give you confidence that they will stop the vehicle like they should. when braking at times you can hear a hissing, maybe all the time, but when things are happening you aren't listening for a hissing sound. also, when the vehicle is stationary and in park if you really put you foot to the floor a beeping almost like an alarm sound is made. this brake booster failure should be a major concern. 8-13-2017 i was traveling about 65 mph in lite traffic on a downgrade and slight corner when a vehicle in front of me lost a tire and i needed to brake quickly and my brake pedal wouldn't move, it was hard as a rock, never slowed the vehicle at all. thank goodness i had plenty of room to maneuver, otherwise who knows what the result of that accident may have been. another time was 8-30-2017 i was driving my vehicle, approx 20 mph, and was approaching the intersection of our subdivision and the hwy where the traffic travels at 55 mph, i went to brake and the pedal went to the floor.... again no brakes. my vehicle rolled to a complete stop, but not before i crossed into the second lane of cross traffic. again thank goodness it was around 6:30 am and traffic was fairly lite. mind you this is only two of the more extreme times. i have purchased a new brake booster and it will be installed this weekend. i did try to contact mazda, but after sitting on hold, 1-800-222-5500, for over 18 minutes the phone finally rings.....until it disconnects.
When stepping on the brake peddle a hissing sound is heard and the brakes no longer stop the car.
The car breaks became hard to push started hissing and wouldn't respond to break till the pedal was almost pushed to the floor. there was no warning. we were on the highway.
My brake becomes really stiff when pushed. this specially when coming to a stop where you have to use all your energy to make the car stop. my wife use this car with 2 young kid 5 and 1 and one on the way. this really worries me specially that its happening to a lot. it may not seem a lot to mazda but its a lot for the consumers specially when lives are at risk. pls fix this problem before its too late . i was even thinking of trading to the new 2017 mazda but now i have doubts
Brakes have become very squishy and unresponsive and there is a hissing sound when depressed. this is a 2012 mazda but it only has 23.5k miles on it. this happened all of a sudden and without warning and makes the vehicle very dangerous to drive. it is becoming progressively worse, will be taking to the dealership for repair under supposed extended warranty.
Tl* the contact owns a 2012 mazda cx-9. while driving various speeds, the brake pedal was depressed and failed to engage correctly. the pedal felt stiff and there were no warning indicators illuminated in the vehicle. the vehicle was taken to an independent mechanic who diagnosed that the brake booster was faulty and there was a leak in the master cylinder that needed replacement. the vehicle was repaired. the manufacturer was notified and opened a case. the vin was invalid. the failure mileage was approximately 100,000.
My break pedal feels as if it becomes stiff and i hear a hissing noise coming from the pedal. my breaks will not slow the vehicle. i have to remove my foot and reapply pressure forcefully in order for the breaks to work. it does this in reverse, going down an incline or flat surface. this happened while my child was with me. please repuireva recall or lives may be at stake.
Without warning the brakes became spongy and difficult to depress the pedal. stopping distance significantly increased and a hissing noise while brakes pedal depressed. took it in for evaluation and diagnosed with brake booster failure.
Brake pedal intermittently will not depress and will not stop the car from going forward. brake reservoir full. multiple times during a single drive. very unsafe.
Brakes failed. attempts to stop only slowed vehicle down unless extreme pressure applied. pedal stopped halfway. occasionally abs activated due to excessive force required to depress brake pedal. repair with replaced brake booster. immediately failed again by making noise on depression though vehicular is stopping. dealer ordering another booster and will need to return for repair again when it comes in.
Brake pedal suddenly became very stiff and hard to depress. car was in motion and occurred as i was slowing down from 30mph to 20mph to enter an active school zone on a residential road. after coming to a standstill and repeatedly depressing the brake pedal a hissing sound could be heard emanating from the brake pedal area.
Brakes are hard to push. it feels as if pressure is pushing up as i push down
Upon driving my vehicle, it became very difficult to stop at all times. i had to use both feet to stop at a emergency stop and almost hit a car pulling out in traffic. there was no stopping this vehicle using the breaks. i have my two small children that travel with me, this problem was a huge threat to their safety and lives. this problem needs to brought to the attention of other drivers before it is too late. before my car caused an accident, i brought it to my mechanic and he told me it was the break booster. he also told me that this should not be happening considering the age and mileage on my vehicle. he did some research and found several complaints related to this issue, but no recalls. with no other choice i had him fix the problem. this is a huge safety problem and should have a recall. i would like to be reimbursed for the mechanic i paid to fix the problem. if it wasn't for the defect in the break booster, i wouldn't have had this problem in the first place. my questions to you are, how many people have to have their lives and loved one's lives put at risk in order for a recall to be issued? is it cheaper to have a law suit or to issue a recall?
Drove ~600 miles with a failed brake booster. found out via internet that mazda had provided an extended warranty to cover this defect. when the dealership where i took the car tried to find the part it was on backorder with mazda. the mazda service manager at preston mazda, john rosensteel, had one of his people drive to butler, pa from boardman, oh to pick up the part. i took the car to the dealer on the day before thanksgiving and the car was ready to go with a new boost unit by friday. this was all due to the efforts of an excellent service manager at the dealership. mazda failed me as a customer by not having the brake booster in stock even though it was the subject of multiple failures and an extended warranty. *tr
At just over 90,000 miles i had transfer case problem that everyone is posting. as described by mechanic it is a manufacturing defect. transfer case is placed just above catalytic converter (which throws off alot of heat) as a result oil in transfer case cooks over time and gears are destroyed. mazda did not provide a way to replace and or check this fluid without taking down the entire transmission. mechanic said i will have this problem again at roughly another 80-100,000 miles. year and a half later i noticed a very soft brake. i replaced brake pads and drums, and brake fluid. i have a very hard brake which then sporatically goes soft. again i looked up this issue and found again mazda is aware of this issue and extented warranty to 90,000 miles. again i'm just over the warranty allowance and now my brake power booster and possibly master cylinder need to be replaced. both are known issues by mazda. unfortunately i was the lucky one who was the beneficiary of both problems just over the 90,000 mile warranty. i reached out to mazda to request some assistance with at least the cost of the parts on the brake power booster. i was given a quick no by mazda. very frustrating since these are both known problems and they will not at least work with me on the parts cost.
While braking normally for a stop sign, the brakes became hard to press and did not stop the car as normal. hissing from the pedal area was heard and the car finally stopped halfway through an intersection after nearly standing on the brakes.
I had to push harder and harder on my mazda cx9 brake pedal for my car to slowdown and to come to a complete stop . this happened when backing out of my garage and the brake is getting worse everyday on my way to work . on the day when i had to take my car to the mechanics , i had practically put both feet on the brake pedal for the car to stop . it was a terrifying experience that the car would not stop and continued to roll forward and more so at every traffic light . i took my car to two different mechanics within one hour since i didn't believe the first one and wanted a second opinion . they both told me that the brake booster and the master cylinder were defective and needed to replace immediately because i just don't have brake on my car ! they said this should not happen in a car with only 59,000 miles . the first mechanic even had me signed a waiver since i didn't want them to fix the brake and wanted a second opinion . i did not believe that it would cost me $1062,07 to fix the brake . unfortunately the second mechanic gave me the same diagnostic with the cost of $843 and two days to order the parts since it was on saturday and recommended me to leave the car in their garage . and to make the thing worse my mazda dealer service is not open on the weekend . i googled and found out that the defective brake has had happened to several other mazda cx 9 owners and no recalls had ever been issued . i do have photos of the defective brake boost and master cylinder but don't know how to upload .
Brakes felt hard/stiff and vehicle didn't stop as expected. almost hit another car. had to apply brakes multiple times to slow down.
Loss of brake fluid; brake pedal hard to push. unable to stop car; hissing noise at brake pedal.
At 44,000 miles, brakes feel hard and vehicle brakes slower than it should was nearly in an accident due to this. it took a much longer distance to stop. emergency repair at local shop indicated brake booster failed. really dangerous situation. mazda should recall
Breaks slowly strted to get harfer to press , here and there and last friday went to take ny kids to the store and a couple neighborhood kids taged along when i got to the intersection my break pedal would not press down so thankfully no cars were coming as i slow rolled through the stop sign on a very busy fast speed higway . called mazda and they said they have had issues . please if u notice any break issues get them fixed right away this story could have ended much diffrently with the loss of 5 kids killed because this is not a recall just a common complaint at this point it was under investagation at one point . mazda needs to step up and send letters to owners of this issue .let me note mazda was qiuck to get it n and fixed and gave me a rental . thank u for that but all i can think about is how all this could have ended .
The brake pedal on the mazda cx-9 became very very hard to push. also, while i was stopped completely with the brake all the way down, the brake would temporarily release itself and i had to use two feet on the pedal to get the car to completely stop! this should warrant a complete recall as i almost drive into busy intersections twice so far!
Brake booster - i had issues pressing on my brakes, like a book had been placed underneath preventing me from fully applying pressure to stop my vehicle. this happened when i would back out of the driveway, go down the highway, and in traffic as i sat on the highway. when my car was stationary, i would apply pressure to the brakes and could hear a very loud hissing sound as though someone was letting air out of my tires. luckily i wasn't in an accident, however, it almost happened on a few occasions. when i called mazda to have my car checked out, i was told this is a common problem that seems to happen with the cx-9 and i was advised to bring my car in.
Brake booster - when depressing the brakes (any time of day) there was a strange hissing noise, like air being released from a balloon. if the pedal was pressed closer to the floor there was a high pitched squeal. brakes became very hard to press and the car became extremely difficult to stop. luckily there were no card in front of me. a repair shop instructed me to check brake fluid (which was slightly low, and i filled it). this did not solve the problem. brakes are even harder to press. from research i see that mazda has had this problem for some years now. they should recall these cars and replace the boosters before someone is killed. we have four kids in our house and this is our only transportation. the car is no longer under warranty so i will be left replacing this on my own.
Brakes feel hard and vehicle brakes slower than it should. it took a much longer distance to stop. hissing sound from pedal. found numerous descriptions on similar problems with brake booster tear. don't understand why this was not recalled.
Brakes became stiff and difficult to press. when brake pedal pressed to the floor, loud squealing noise heard from inside the cab. stopping distance and brake pedal depression continue to worsen as time passes. this has now become so bad that we can no longer drive the car safely.