CarComplaints.com Notes: The only area of real concern for 2011 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
Typical Repair Cost:
No data
Average Mileage:
60,900 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
2011 Mazda CX-9 engine problems

engine problem

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2011 Mazda CX-9 Owner Comments

problem #1

Jan 032016

CX-9

  • Automatic transmission
  • 60,882 miles

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

When I'm driving it sounds like a race car from the inside of the car. I don't know what's going on. Also the smell of gas smells in the car. Just got the car less than a year.

- toyp, 3008, GA, US

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