CarComplaints.com Notes: Mazda included the 2009 Mazda CX-9 brake booster in a special extended warranty (now expired) that covered 2007-2013 model years.

However, brake booster complaints never materialized as a defect trend for the 2009 CX-9 — both with our complaint data & with the NHTSA's complaint data. So, we highly recommend this 2009 model year!

1.4

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
119,140 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2009 Mazda CX-9 miscellaneous problems

miscellaneous problem

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2009 Mazda CX-9 Owner Comments

problem #2

Jul 052016

CX-9

  • 101,280 miles

A D V E R T I S E M E N T S

So I was backing up from a parking space on a shopping center and my brake pedal on my Mazda Cx-9 did not stop immediately. Due to this problem I bump in to some one else's car. The pedal has turn so hard it was difficult for fractions of seconds to know what was going on. After the incident with having an issue with the brake pedal. I notice beside been hard it started making a squeaky noice and also like and air sound under the dash board. I found out there was a class action agains Mazda for their brake booster on this model and sure enough, that's what it was, I'm just so blessed it happens in a parking lot and not on the freeway. So I called Mazda and they said they will cover the part but I have to pay for the work done to the vehicle. So I did a research on pricing and I found out Mazda is charging $269 for the wok done, supposedly them covering the part, and outside that is just around the same price else where. Not only that they did not cover everything most likely my insurance may go up and to add to the problem they will charge me for renting a car while they fix it. There is no help with a part that should not have any problems in the time frame of the year of this vehicles. And it was manufacture defect.

- Rancho Cucamonga, CA, USA

problem #1

Apr 232016

CX-9

  • 137,000 miles
SUV would go off in the middle of the road or highway when traveling a high speed. Took it to dealer, they say that they found oil & water mix in the engine due to water pump failure, multiple symptoms would occur as due to this condition. This issue is very series, first you get no indiction of the problem, not sure why the water pump failure causes water to enter the motor and mix with oil, it must be a Mazda design problem, which they seem to know about and never issued a recall to get all the car fixed. If you are driving with your family at 50 mpe in an highway the car will just go off and you can get impacted at the rear with very horrible consequences. Will Mazda issue a recall for such a series issue?

- Boca Raton, FL, USA

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