NHTSA — Visibility: Defroster/Defogger/Hvac System: Fan/Motor Problems

CarComplaints.com Seal Of This Might Hurt

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.

1.6

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
102,000 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.

2011 Mazda CX-9 windows / windshield problems

windows / windshield problem

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2011 Mazda CX-9 Owner Comments

problem #1

Apr 122019

CX-9

  • 102,000 miles

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

The contact owns a 2011 Mazda Cx-9. while driving 40 mph, the contact heard an abnormal noise and noticed water dripping from the sun roof into the interior of the vehicle onto the dashboard. The contact stated that the leak caused an electrical shock to the blower motor of the air conditioner. The vehicle was taken to lou bachrodt Mazda coconut creek (located at 5400 fl-7, coconut creek, fl 33073, (954) 247-5000) where it was diagnosed that the air conditioner blower motor needed to be replaced and the sun roof needed to be de-clogged. The vehicle was repaired, but continued to experience the failure. The manufacturer was notified. The failure mileage was 102,000.

- Pampano Beach, FL, USA

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