2014 MAZDA CX-9 Complaints

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.

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 payments on top of shelling out 4k on a truck I hadn’t even had for a year. This is a huge issue with a lot of people that own the same vehicle and is extremely dangerous! I could’ve killed someone or worse myself when my vehicle stalled out on the highway.

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?

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.

Breaks became very hard to press and I was having trouble stopping the car. I could not drive it to the Mazda dealer who was too far. I took a chance and drove a few miles to local break shop. They replaced the master cylinder and the break booster. Parts and labor were $1083.87

When I press on my brakes, I hear air. I am fortunate that, as of this reporting, I have not had an accident. My brakes do not fully stop my car, so I have to judge when to brake in order to slow down and not hit the car ahead of me. Very scary when your car won't stop! I have read other complaints on the Mazda CX9s built in 2013 having an issue with the brake booster. PLEASE recall these 2014 Mazdas so the appropriate repairs can be made. Working brakes are ESSENTIAL!

I bought a vehicle from Carvana 11/2021 with not quite 59k on it. On 6/21/2023, with 77K miles, my car had a catastrophic engine failure. I was driving my grandchildren ages, 3-12 years of age home. Safety was definitely at risk with speeds of 70 freeway were completed right before engine stopping. The mechanic shop has confirmed the car giving 3 codes related to timing belt/water pump and the other code which confirms engine failure. No warning lights had come on until I tried to restart it. Since this situation is most recent, I have not had anyone else inspect the vehicle. I am working through my options and will take recommendations for resolution.

I was driving on interstate and there were not any other vehicles that were all that close to me. All of a sudden there was this huge extremely loud bang and glass shattering sound. Scared me to death. I never saw anything, I pulled over at next exit and saw my sunroof with a huge hole and shattered. I drove back by where i was driving and there was nothing i could see that could have caused that to happen. After doing a little research i'm positive the sunroof exploded. Thankfully my kids were not in there and i was able to remain calm enough to get pulled over safely

The car started creating a noise like air was leaking when i apply brake. The problem continued to increase, and braking became harder and harder. The dealer indicated that I had to replace the brake booster. This is a 2014 CX-9. A NHTSA search showed that vehicles manufactured in 2013 were affected. My car was purchased in Feb 2014. I suspect this one too had that faulty equipment.

Sudden failure of water pump located inside the engine caused engine to shut down immediately while driving 70 mph on busy expressway. Extremely dangerous situation due to heavy traffic and high speeds traveled. Only by sheer luck were we able to coast across 4 lanes of traffic to an exit ramp and barely make it into a parking lot after crossing 2 more lanes on the frontage road. Very difficult to steer and brake due to no engine power. Repair cost was $4,433. Two subsequent follow up repairs for check engine light and oil control valve issues related to water pump failure were required and covered under initial repair warranty. Research on web indicates this is a common problem with this engine with many complaints occurring soon after 100k miles. In many cases customers reported having to replace the engine or sell the car for parts due to the high cost of repair. Locating the water pump inside the engine block was a terrible design fault and extreme safety hazard when it fails.