The National Highway Traffic Safety Administration is investigating 62,000, 2010-2011 Mazda CX-9 models over brake problems. The government safety watchdog says it has received seven complaints of an observed loss of power braking power to stop the crossover, according to the The Detroit News.

The NHTSA complaints say that the problem causes a hard pedal, increased braking effort and reduced braking effectiveness. Some complaints allege that they hear a hissing noise during braking similar to the sound of air leaving the tires. No injuries or crashes have been reported.

"As always, we are fully cooperating with NHTSA on their investigation. We cannot comment further at this time," said Mazda spokesperson Tamara Mlynarczyk to The Detroit News.

Should it get to that point, this would not be the first recall for the CX-9. The 2010 CX-9 was recalled due to faulty seat heaters. It also recalled about 31,000, 2007-2009 trucks for a fault in the power driver's seat. NHTSA also investigated (but didn't recall) the 2008 CX-9 for loss of braking effectiveness after a high number of warranty claims affected approximately 37,000 crossovers. Mazda found that there was a possible manufacturing defect with the brake master cylinder that might have caused it. We will watch the investigation and keep you updated if it develops into a recall.


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  • 13 Comments
      jz78817
      • 10 Months Ago
      "The NHTSA complaints say that the problem causes a hard pedal, increased braking effort and reduced braking effectiveness. Some complaints allege that they hear a hissing noise during braking similar to the sound of air leaving the tires." translation: "defective brake booster."
      carguy1701
      • 10 Months Ago
      "Some complaints allege that they hear a hissing noise during braking similar to the sound of air leaving the tires..." Vacuum leak, either from the booster hose or the booster itself.
      Barbara Card
      • 3 Months Ago

       I have a 2010 cx9 and I had the brakes checked and they say there is nothing wrong with them. But when I back out of my  drive every morning, I hear them grinding and when I go to stop, it feels like the rotors are bad.

      normc32
      • 10 Months Ago
      Mazda has 3 out of 10 of the Top Ten Worst used cars: http://autos.yahoo.com/blogs/motoramic/car-dealer-scientific-guide-10-worst-used-vehicles-222709616.html
        Cool Disco Dan
        • 10 Months Ago
        @normc32
        The 626 trans isn't a bad part they just aren't maintained. If people did routine maintenance on those like a flush and fill with filter change they would last much longer. The Millenia uses the same KL engine and transmission as the 626 and suffers from poor maintenance issues. They also have issues with the supper charged engine for the same reason they have issues with the transmission, people don't take care of them.
          carguy1701
          • 10 Months Ago
          @Cool Disco Dan
          We had a 98 Millenia and the only issue we ever had with the powertrain was the trans crapping itself because the fluid was flushed instead of being drained conventionally.
        Radioactive Flea
        • 10 Months Ago
        @normc32
        Top Ten Worst Cars by Yahoo, the automotive authority.
        carguy1701
        • 10 Months Ago
        @normc32
        >using Yahoo as a source for anything >2014 People do this?
        Autofan
        • 10 Months Ago
        @normc32
        Norm, 2 of the 3 Mazda's on your list haven't been manufactured since 2002, but I agree probably for good reason. The 3rd Mazda on the list, the CX-7, stopped being manufactured in 2011. Except for maybe the CX-7, I don't think your point is relevant here. I think a better comparison would be the Ford products that keep on getting recalled over and over again.
          Tariff The Imports
          • 10 Months Ago
          @Autofan
          You mean the Toyotas that make headlines almost daily for recalls, right?
      Mr. Ortiz
      • 10 Months Ago
      I got the booster replaced at the dealership it cost me about $600.00. Do I get my money refunded back to me if it becomes a recall?
      Scott Kemp
      • 10 Months Ago
      I had a soccer mom cut me off in one of these this morning. Now I know why.
        carguy1701
        • 10 Months Ago
        @Scott Kemp
        >soccer mom Pretty sure that's why, not a fault of teh brake system.
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