Brakes Failed problems of the 2011 Mazda CX9

Sirt: I purchased my 2011 Mazda cx 9 from my close friend greg chavez on Dec. 05 of 2014! mr chavez had not been issued a special services program about the brake booster! well I never received this info either? in fact I had two recall that were taken care of by the local Mazda dealer here in thousand oaks calif. This known brake booster detonation has been known by Mazda. Iot is a very dangerous condition and is not to safe to drive the car at all- I will not drive the car and seethe original matter should have been let it be known to myself and feel the matter should be addressed ASAP by Mazda -thank you edwin vladish- 805-236-4099 adding backing -very hard brake - when driving it had to really stand hard on the brake to stop car b! all indications point to a brake booster failure ! to summarize io was never notified by Mazda about the special service program for the repair of this extremely unsafe brake p[roblem!.

Brakes really hard to press. Wife thought car wasn't going to stop and she was going to rear end car in front of her. Sometimes brake pedal would feel spongy. Over last month there was an intermittent strange noise sometimes when car was started. Mazda dealership identified the problem to be a defective brake booster. I found that NHTSA opened investigation on cx-9 brake issues previously and Mazda identified problem to be brake booster. Mazda extended the warranty to 7 years or 90,000 miles and NHTSA closed investigation. Our brake booster failed at 9 years with 79,388 miles on the car. From what I have read the life expectancy of a brake booster is the life of the car. Mazda never informed us about this possible problem. Our family could have been seriously injured or killed due to this defect. Why did the NHTSA accept an extended warranty as a solution?.

Our vehicle has lost braking power and is unsafe to drive any distance now. It is very difficult to get the vehicle to stop and keep it stopped once it has stopped moving without putting it in park. I have been advised this is in relation to Mazda ssp 93. Mazda has advised that is it my responsibility to have this vehicle towed to the nearest dealership, pay for repair labor, and pay for a rental car while repairs are being made. I am in complete disbelief that a known manufacturer's defect related to braking and general safety of everyone on the road was not immediately issued as a recall. We were provided zero notice that there was even potential for brake failure.

Brake booster failure.

Tl the contact owns a 2011 Mazda cx-9. The contact stated that there was an intermittent failure with the brake system failing to function properly as the contact had to press the brake pedal, release the brake pedal and apply force to stop the vehicle. The failure happened more than once to the point of it being a risk that may result in a crash as the vehicle had stalled as well. The vehicle was unsafe to drive, parked at the owner's residence and may need to be towed for repairs. The dealer young Mazda (191 commerce park dr, easton, PA 18045, (610) 991-9100) was notified of the failure. The vehicle was not diagnosed. The vehicle was not included in NHTSA action number: pe14005 (service brakes, hydraulic). The manufacturer was notified of the failure to determine if they had a technical guideline to repair the vehicle. The VIN was not available. The approximate failure mileage was not available.

Tl the contact owns a 2011 Mazda cx-9. While driving at an unknown speed, the brakes failed to respond when the brake pedal was depressed. There were no warning indicators illuminated during the failure. The dealer was not contacted. The vehicle was taken to an independent mechanic where it was diagnosed that the brake booster failed. The vehicle was repaired. The manufacturer was notified of the failure. The VIN was unknown. The failure mileage was 120,000.

Brake booster failure, causing brakes to not engage without pumping the brake pedal. No check engine or maintenance lights were triggered due to the failure. Only indication was engine revving while idle for no apparent reason and inability to bring the vehicle to a stop.

Brake booster failure brake pedal hissing and started to stiffen I was driving then stopped at a traffic light noticed that the brakes were hissing and was really hard to push on to a complete stop.

The contact owns a 2011 Mazda cx-9. While driving approximately 30 to 40 mph, the contact engaged the brake pedal and attempted make a left turn, but the brakes failed to engage. The contact was able to steer the vehicle onto a dirt road to bring the vehicle to a stop. The vehicle was towed to the Hyundai Mazda dealer (14821 pandelli road victorville, CA 92392 phone 760-241-3801) where it was diagnosed that the brake booster failed. The manufacturer stated that the brake booster failure was not warranted for 90,000 miles. The vehicle was not repaired. The failure mileage was 90,000.

Reference ssp93 - brake booster diaphragm leakage on 2010-2012 Mazda cx-9 vehicles. On, or about August 5, 2016 power brakes failed, causing a need to apply heavier than normal pedal pressure to stop vehicle, resulting in very near rear-end collision with vehicle at stop sign. This defect is known by the manufacturer and was investigated by NHTSA in 2014. Investigation was closed with no recall action recommended. There should indeed be a recall mandated for this defect since it can result in serious collisions due to failure to safely stop vehicle.

I had 3 children in car seats, myself and my oldest son in our Cx9. I crested a hill and started down the other side and I applied the brakes to slow down and they were hard and would not allow me to stop. I almost hit the truck in front of me. He was thankfully watching his mirror and ran a red light to get out of the way so I didn't hit him. After standing on the brakes for what seemed like a life time they finally engaged in the middle of the intersection and hissed with a loud squealing noise. I removed myself from the intersection and at 5 miles per hour went to the nearest mechanic. I was told to call Mazda because the power assist braking system had failed. I called Mazda and they told me not drive it as it was unsafe. They would have it towed to the nearest dealership and would take care of it. The nearest dealership is dolan Mazda kia in reno nevada. I was informed by steve to look at it in the shop I was looking at $125. And that it was no longer under warranty because my Cx9 has over a 100k mls. And the warranty ran out at 90k. The brakes failed unexpectedly with no warning. I was never notified about this safety issue from Mazda nor the dealership I purchased it from. I see that the NHTSA has closed it's investigation with no recall or that Mazda customers were informed. My family could have been seriously injured or even killed.

This is the second happened to my Mazda Cx9, 2011. The brake started to have hissing sounds while stepping on brake. The brake pedal is harder than usual to depress. The brake functions has been reduced around 30~50% less than normal. This has put dreiving safety in jeopardized. This is the second time my Cx9's brake booster failure. The first time is in year 2012. I worked with Mazda to have brake booster replaced. However, dealer seemed not realized there is a warranty extended program from Mazda --- Mazda special service program -93 (ssp93). This is official recorded in NHTSA action number pe14005. Dealer tried contacting Mazda for this program. But Mazda kept not responding, it has been two weeks but still not message back from them. I paid the repairmen of the defective brake booster (parts & labor) from my own packet at this point. Despite the defective parts for jeopardizing driving safety, my complaints to Mazda is also for their non-responsive to customer's warranty program which they have made.

The brake booster failed. All of a sudden the brake felt hard and the car wouldn't brake - had to press very hard to barely avoid hitting another car in front. On the way to the dealer, it was scary and could have easily got into an accident. I am lucky it didn't happen on a highway. The dealer replaced the brake booster - it was under extended warranty but not recalled. Though the dealer was quick to fix the problem, I believe this is a really dangerous and lives can be lost! I expected a defective braking system should have initiated a recall!!!.

Without warning, the brakes failed. They seemed locked to the floor, impossible to press. No signal indicators no warning. Just suddenly no brakes. Very critical problem and accidents involving loss of life is probable.

Brakes failed to engage 3 times this morning, the first time failed to stop the SUV so had to swerve to the center median and slightly hit the metal barrier. Then going back home making a turn, brakes failed again to engage. Seems this happened when making turns. Brought to the Mazda dealer, told them about ongoing investigation by NHTSA about Mazda Cx9 2010-2011 brake problems. They did a thorough check but could not duplicate the problem so nothing was fixed. It might be the brake booster. I'm afraid this might happen again, they said there was no recall regarding brakes for 2011 Mazda Cx9. Hope that NHTSA forces Mazda to make a recall. Mazda has to fix this dangerous problem.

Our 2011 cx 9 brakes are failing. The power brake booster will at times not work making the brakes very hard to depress and without the ability to quickly and safely stop the car.

Power brake booster failure.