CarComplaints.com Notes: The only area of real concern for 2013 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 affected 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.

2.7

hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
53,000 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.

2013 Mazda CX-9 wheels / hubs problems

wheels / hubs problem

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2013 Mazda CX-9 Owner Comments

problem #1

Jun 252017

CX-9

  • 53,000 miles

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

My vehicle seemed as if the transmission was slipping between gears on the highway it would take forever to switch into higher gears for higher speeds then when slowing down it would jerk and then finally stop or if I was in traffic where I didn't need to make a complete stop it would jerk to slow down and skip gears and jerk to speed back up while on the high way traveling at normal speed with cruise control set it went from 6th gear to 4th gear for no reason at all! then it started making noises sounding like both the front and back end first you would only hear them when turning right or left then started hearing them in reverse then you heard them while driving all the time on the highway back roads and parking sounded as if my tires were going to fall off! I contacted carmax because that's where I purchased the car in March of 2017 it's now agust 2017 and told them what was happening they lied from the initial phone call but that's besides the point they had my vehicle for a week saying they were looking at it thoroughly to make sure what they found in the rear differential was the issue they assured me it was told me if I heard the noise bring it back asap as I was driving the vehicle home it was still experiencing the same issues we tried to call them immediately but they were closed we called them that Monday and couldn't get anybody on the phone so we left a message we continue to call them for two weeks before they finally gave us an appointment to bring the car and I could not drive my car for the two weeks that I had it in my possession because I was told through my extended warrantee that driving my vehicle while it was still damaged would void my warranty the day after we drop my car off back at carmax I was called and told that the date it was pulled out of the garage on the original repair date 3 weeks prior that the tech noted to bring to Mazda

- Ansonia, CT, USA

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