NHTSA — Service Brakes, Hydraulic: Foundation Components: Master Cylinder Problems

CarComplaints.com Seal Of This Might Hurt

CarComplaints.com Notes: The only area of real concern for 2012 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 for most CX-9 owners, 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.

2.1

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
75,000 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.

2012 Mazda CX-9 brakes problems

brakes problem

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2012 Mazda CX-9 Owner Comments

problem #1

Sep 042020

CX-9

  • 75,000 miles

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

The contact owns a 2012 Mazda Cx-9. the contact stated that while driving, and making a turn at 5 mph, the brakes were squishy and the vehicle failed to stop. There were no warning lights illuminated. The vehicle was taken to bob moore Mazda (13045 N. kelley ave, Oklahoma city, ok 73131 (405) 775-7000) to be diagnosed. The contact was informed that brake master cylinder needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and stated that the extended warranty had expired. The failure mileage was 75,000.

- Edmond, OK, USA

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