CarComplaints.com Notes: The only area of real concern for 2010 Mazda CX-9 owners is the brake booster.
In 2014, Mazda extended the warranty on the 2007-2013 CX-9 brake booster to 7 years / 90,000 miles. However this extended warranty has expired, so buyer beware.
This Mazda CX-9 brake booster failure isn't terrible in terms of repair cost — it "only" costs $550 average to fix. However it is a safety issue when the brake booster fails as it increases stopping distance. Owners have reported having to stomp on the brake pedal, & crashes/injuries have been reported due to this CX-9 brake booster defect.
10.0
really awful
Crashes / Fires:
0 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
35,992 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.
I was driving on a street with a 25 mph speed limit when all of a sudden the car hesitated and made some weird noises. I continued to pull over to get out of the way when there was a huge bang and the car came to an sudden stop. I was able to get to the side of the road. Smoke was coming out of the engine area and the car smelled terrible. I jumped out, got my dog out and called 911. The fire department and police came. Found metal parts all over the road. Smoke was mainly due to oil that was all over the engine and bottom of car. Right now the initial diagnosis is that the transfer casing blew along with a variety of other parts. Thank goodness I was not on the freeway. Additionally, I was lucky that the large parts that blew off the car did not put a hole in the bottom of my car or damage someone else's car.
- Oconomowoc, WI, USA
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- Oconomowoc, WI, USA