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.

1.8

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
94,057 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.

2010 Mazda CX-9 brakes problems

brakes problem

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2010 Mazda CX-9 Owner Comments

problem #1

May 292014

CX-9

  • 94,057 miles

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

The contact owns on a 2010 Mazda Cx-9. the contact stated that while driving at 10 mph, the brake pedal became stuck to the floorboard and made an abnormal noise while the contact was attempting to stop. The contact was able to release the brake pedal and stop the vehicle by depressing the brake pedal several times. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure and current mileage was 94,057.

- Cordova, TN, USA

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