Problems · NHTSA complaints
2014 Mazda CX-9 problems
Owners filed 54 complaints about the 2014 Mazda CX-9 with NHTSA between Oct 2014 and Nov 2024. The most-cited component is engine (19).
Complaints
54
Filed with NHTSA
Crashes
1
Reported by owners
Fires
1
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Engine19
- Service brakes9
- Power train7
- Suspension5
- Fuel/propulsion system5
- Seats3
- Steering3
- Air bags3
- Visibility/wiper2
- Electrical system2
- Structure2
- Visibility2
- Wheels1
- Engine and engine cooling1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 11, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
1
4
8
3
7
5
6
3
6
8
3
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2014 | 1 |
| 2015 | 4 |
| 2016 | 8 |
| 2017 | 3 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 8 |
| 2024 | 3 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Engine
19 reports
“I purchased a 2014 Mazda CX-9 back in May of 2020 w/ roughly 60k on the dash. Literally 7 months later w/ about 72k on the dash, the day after Christmas I was driving to work (I worked in the next state over) on the highway my car just shut down. No warnings, no check engine lights NOTHING! It just completely shut off and would not turn on. Thankfully because of the holiday the highway was pretty empty and I was able to swing my car across the interstate so I wouldn’t get hit by oncoming traffic. After getting out and deciding to check my oil I noticed it looked milky. I had no idea what that meant so I had it towed to a Mazda dealership in the state I live in. It was going to cost me almost $8,000 to put in a new engine because the water pump that was placed inside of the engine failed, which in turn caused my engine to seize. The extended warranty I had on my vehicle was worthless so I ended up paying out of pocket. Thankfully Mazda worked with me and had me prove that I kept up maintenance on the truck so the price was chopped in half. This happened right at the beginning of Covid when the entire world was suffering financially. I still had to make my car…”
Service brakes
9 reports1 crash
“Brakes stopped working while we were on vacation. Made the drive down fine, but the next day went to drive the car, pressed the brakes and the car did not come to a complete stop. Also made a funny noise when we tried to press on the brakes. My husband practically had to stand up and push all the way down to get car to stop. Luckily we were not in a congested or confined place. Ended up replacing the brake booster. Three weeks later my acceleration stopped working intermittently. I go to press the gas and the car doesn’t go. The dealership is saying it’s the brake signal.”
Power train
7 reports1 fire
“- Water pump failed causing coolant to mix with oil. This repair cost was around $3,900. - Luckily this failure happened on our community road and was able to pull into our driveway. Mechanic stated that if this happened on the highway or regular road, this could have caused a major incident and possibly a blown motor. - No, but complaints of similar issues have been reported via my online research. - Just by the mechanic I had my vehicle towed to. - There was no indication of an issue until the water pump failed.”
Suspension
5 reports1 related recall
“The contact owns a 2014 Mazda CX-9. The contact stated while driving at various speeds, the vehicle was drifting to either side. There was no warning light illuminated. The contact had to forcefully grip the steering wheel to avoid losing control of vehicle. The vehicle was taken to an independent mechanic, and it was discovered that there was severe corrosion around the front suspension ball joints. Upon investigation, the contact discovered NHTSA Campaign Number: 15V451000 (Suspension); however, the VIN was not included in the recall. The dealer was notified of the failure and the contact was provided an estimate for a diagnostic test. The manufacturer was notified of the failure and the contact was provided a case number. The vehicle was not repaired. The failure mileage was approximately 95,000.”
Fuel/propulsion system
5 reports
“The water pump failed causing water to mix with the oil and damage the head gasket. Estimates recommend replacing engine. The service engine light came on and we took it to our trusted mechanic right away. Got the estimates from two mechanics for this repair and then towed the car to Mazda dealer who confirmed the problem. We wrote to Mazda's corporate office and was told they would not fix it. My car has 68,000 miles and was regularly serviced. It is currently sitting dead in my garage. We bought this car in 2015 brand new from the Mazda dealer in Monroeville, PA. This is outrageous! I spoke with someone else who also owns a Mazda and the same thing happened to his car. From articles I have read and attached, this problem is occurring in many Mazdas. What needs to be in place for Mazda to take responsibility and fix this problem by recalling the affected vehicles?”
Seats
3 reports
“Drivers seat will not recline backwards”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 11, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.