Brake pedal became spongy and stopping power diminished considerably. Heard a loud hissing sound from the front driver's side. Had to fully depress the brake pedal to stop quickly.
2012 Mazda CX-9 brakes complaints
Page 4 of 6: complaints 71 to 100 of 143, newest first, as owners wrote them.
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.
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.
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.
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.
Power brakes are going out. While driving the power assist on the brakes goes out. You have to push as hard as you can to get any stopping ability and then they will work fine again. This happens randomly but frequently. The car has 75,000 miles.
The brakes have become very hard to push, it takes all my might to get car to stop, and there is a squealing sound when pedal is pushed all the way down. Feels as if car isn't going to stop.
Brake failure at 60k miles (possibly earlier). I bought the vehicle from a dealer 2 months ago and was told front and rear pads and rotors had already been replaced. They felt inconsistent but I thought they needed to settle in. Then the power boost began to fail and a high pitched whining noise comes from the booster if the pedal is held down. It has lurched forward with my footrr on the pedal while at a full stop. I now put it in neutral when at a stop. Getting it to stop is the problem. Very ,very dangerous.
We have noticed the difficulty in depressing the brake pad along with the hissing noise over the past 1 month and it has progressively became stronger. Initially you brush it off thinking you are imagining it. Today on a hill there was an accident so traffic was barely moving, I started to leave more and more distance with the vehicle in front of me as it was becoming increasingly difficult to depress the brakes. Finally I hear a strange noise and then complete quiet and my teenage daughter notices too and as I release the brake to move I realize the car engine had died (the engine has never given any indication of issues before) but the engine dash lights weren't on indicating there was not power which of course means no power steering either, a quick shift to n and restart and all is fine the rest of the way home. The hissing noise and difficult depression continued however while on the hill when I did press hard enough for the brakes to respond they did so as though bypassing the anti-lock system as they would jolt into the stop. Very concerning as the distance to stop has increased, what if a person walked in front of me much less if I'm on the freeway and come upon a sudden need to stop. But here it is a saturday evening and how and when can I deal with an obvious safety issue that clearly is repeated. I wonder how many out there have not taken the time to report, have spent much on repairs or simply traded in their vehicle to come in to the hands of some other unsuspecting consumer. Action truly is needed before someone's lives are changed forever.
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.
With no warning at all the power brakes stopped working. To stop the car you have to almost stand on the brakes. When you push on the brake pedal you also hear a very faint hissing noise. This is very dangerous as there is no warning of the brake failure. Unless you are a very strong person there is no way to stop the car in an emergency.
The brakes have become very hard to push, it takes all my might to get car to stop, and there is a squealing sound when pedal is pushed all the way down. Feels as if car isnt going to stop. This occured on the highway and I was lucky I was able to downshift to slow car and get off highway
Tl* the contact owns a 2012 mazda cx-9. While driving approximately 35 MPH, the brake pedal was depressed and a loud squealing noise emitted. After applying the brake pedal numerous times, the vehicle came to a complete stop. The vehicle was towed to the dealer and currently being diagnosed. The manufacturer was not notified of the failure. The approximate failure mileage was 95,300. The VIN was unavailable.
I noticed that at very slow speed (backing out, easing forward) the brake pedal was very hard, did not depress, and car was difficult to stop. I did not have much of a problem at regular (60 MPH) speed. Only once was there a loud hissing on the drivers side when the pedal was depressed. The dealer told me brakes were fine but the car did not drive fine. I took it to my mechanic who told me I needed front brake pads. Upon changing brake pads, I was told the brake booster was bad and causing the pads to wear abnormally fast and that the problem was actually worse with the new pads. Definitely a problem as I was only at 31,000mi. I didn't not return to the dealer and had the mechanic do the repair right then. What I thought was minor maintenance turned into a $500 repair. I found out later that there is an extended warranty of 7yr/90,000mi on the brake booster if diagnosed and fixed by a dealer.
The brakes do not work. When I initially depress the brake from park to drive, the car begins to roll as if I did not have my foot on the pedal. I hear a hissing sound now when I depress the brake. The brake system has rapidly deteriorated in just 1 week. Sometimes, I am not able to stop the vehicle at all. I will be taking my vehicle back to the dealership tomorrow. 4.9.16
My wife complained to me about her brakes becoming hard to the point she couldn't stop the car. I then took her car for a drive and while in motion I hit the brakes and the brakes became so hard I had to use an unreasonable amount of force to get the vehicle to stop. The vehicle also has really diminished stopping power when this occurs. This seems to occur when more frequently when the brakes are pushed more than once in a short period of time such as stop and go traffic.the vehicle also makes a hissing noise when the brakes are applied. I believe that this could be a bad brake booster. I feel it is a safety issue and may cause an accident.
The brakes have become very difficult to push. They slow down the car, but require intense pressure to bring the vehicle to a complete stop. There is also a slight hissing noise when the brakes are applied. It takes about twice the distance to come to a complete stop than previously. There is no indication of a problem on the dashboard; no warning light has been displaying, but something is definitely wrong. I do not feel very safe when driving.
The vehicle presents a catastrophic failure in the brake system. The brake pedal gets extremely hard to depress and the effect is minimal. The vehicles stopping distance is significantly increased; if pressed harder the pedal will suddenly get softer and the brake power increases unexpectedly jerking the vehicle to a stop. Additionally, there is a loud hissing noise noted when the brake pedal is depressed. The hissing noise comes from the drivers side of the cabin in the vicinity of the emergency brake pedal. Mazda needs to address this issue as many people have identified concerns in this area. Of course we operate utilizing tombstone management theories; only recognizing a problem once someone is killed.
Tl* the contact owns a 2012 mazda cx-9. The contact stated that once the brake pedal was depressed, an abnormal sound could be heard. In addition, the brake pedal descended to the floorboard. The failure occurred without warning. The vehicle was taken to the mechanic where it could not be diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 62,000. The VIN was invalid. Updated 03/18/16*lj
Brake pedal makes hissing sound when depressed like air leakage; intermittently very difficult to depress brake pedal with a lot of force applied (typically if pumping brake), leading to increased stopping distance/difficult stopping. Occurs when brakes depressed (soft pedal, air hissing); if depressed again in quick succession, very hard to press with significantly reduced stopping power. Occurs whether vehicle standing or in motion.
On january 7,2015 I was driving on the long island express way merging off the ramp back onto the high way when I couldn't break. My breaks didn't work. I kept on pressing them down and nothing was working. Trucks were all honking at me because I was merging without stopping. Finally I went off the ramp onto the grass. I called the dealership and was informed that there is a recall regarding this problem. Never got anything in the mail from them stating of such thing.I took the car in and I don't own the car anymore because I was beyond afraid after this situation.
The vehicle presents a failure in the brake pedal, which gets harder to press and the brake power is diminished, if pressed harder the pedal will get softer and the brake power increases but the sensation of reliability and safety when braking is affected. Also, when the brake pedal is depressed hard a hissing sound is heard.
My brakes are failing. I first noticed the brakes were spongy and there was a hissing sound in the cabin. Then the brakes became very hard. I was very afraid I was going to hit vehicles in front of me. Also, eventually the car would die when the brakes were applied. The mazda dealership told me it is the brake power booster. This is very common. Please, please recall these vehicles. I bought this vehicle used and it would have been nice to know about this dangerous problem.
Car would not stop when backing out of garage. The brake pedal was stiff causing the car to roll off the driveway and into the side yard. We tried to drive the car back into the garage but the brake pedal resistance was inconsistent - from firmer then usual to less firm - making it difficult to stop the car. When the brake pedal is pressed, a "hissing" sound is audible. The mazda dealership determined the brake booster was losing vacuum. The dealership replaced the brake booster. This is a known mazda issue, but they continue to manufacture this car without a correction. There should be a mandatory recall. The dealership was not able to tell me definitively if the new brake booster has this flaw corrected. This issue could cause a fatality.
As I was driving I noticed my brakes making a hissing noise of about day. Then, the brake pedal became hard and they failed to work.
Brakes prematurely failed after feeling numb and squishy. Upon diagnostic by a local mechanic, it was determined that the brake master cylinder had a leak. In addition, the ABS, traction control and emergency brake lights came on when the symptoms were present. Estimated cost of repair $1250.
Car of 3yr 8mth < 40k mi. Brake not effective, fade very quickly, attempt to lift and reapply brake makes thing worse. Harder to brake. Hear hissing noise, similar to complained by others here. Mazda needs to recall before someone gets killed.
When applying brakes, brakes do not stop completely. There is a hissing sound when applying brakes. Brakes feel harder to press than usual.
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