2010 Mazda CX-9 transmission problems

Filed Apr 9, 2022 · Electrical, Engine · TX

I had engine failure with a complete loss of power and a shuttering of the steering wheel while pulling into a parking lot and going less than 30 miles per hour. The temperature gauze went from cold to hot suddenly. There were no leaks of coolant or oil and no signs that the engine was out of water or that the water pump had "melted". On the final car repair trip we found out that the engine has an internal water pump that failed and resulted in oil & water getting into the engine. The engine light NEVER came on, I had complained about the tire pressure light blinking on and off in November 2021 and the deceleration issue I was having. The dealer did a coolant flush 11/2021. In early March 2022 the engine shut off as I was backing out of the driveway. I took it to a repair shop nearby they could not find anything wrong except that the car went into limp mode. They also did a coolant flush and radiator cap exchange since I forgot I had just done one on Nov. Less that a week later the engine failed again. We towed the car to the dealer for the third trip in less than four months. I am really disappointed that Mazda failed to recall the engine. I could have been seriously hurt if I had been traveling at high speeds. The CX9 had less than 135,000 miles at 12 years old.

Filed Jan 2, 2022 · Transmission · WA

The AWD system failed leaving the car dangerous to drive in rain and snowy weather. Car is still stuck in my driveway as the front wheels are spinning and no power to the rear wheels. My Mother's AWD with similar M+S tires drove out with no problems. Waiting for the snow to melt to be able to take my car into the shop. Reading online this seems like a known Mazda issue.

Filed Aug 15, 2021 · Brakes, Transmission · OR

Driving on I-5, near Gold Hill, Oregon, when the traction control system light came on and the Vehicle slowed down. I had to push the gas pedal to the floor to get the car to move and I could not shift gears! It shuddered and the wheels seemed to lock up. I could smell burning rubber. I forced the car to the next exit, pulled off and shut it down. I sat there waiting for it to cool off. When I started it again it was a little rough at first but then seemed to get better and I was able to get home. I bought the car in June of 2020 from Lithia Motors in Medford, Oregon. I also bought a Power Train Warranty For $2,500 which was set to expire on 6/10/2021. I called Lithia and made an appointment to take it to them for repairs on June 1, 2021. I got as far as Grants Pass, OR, and it did the same thing I described above. I called a tow truck and had it towed to Lithia in Medford. When I got to Medford, the Service Manager told me I would have to take it to Crater Lake Ford. When I got to Crater Lake Ford I was told to take it to Crater Lake Mazda which I did. I described in detail what the car was doing to.the Service.Manager and told him I feared it was some kind of transmission problem. I also told him I had a power Train. Warranty the would expire on June10thso time was no the essence! I never suspected the brakes because we had the bakes repaired in November of 2020 at Lithia Motors. They were making a hissing sound. They replaced the.brake booster among other brake parts for $1,300 plus. That job was still under warranty. I got a call on June 15th telling me the problem was in the gear shift. He said it was now repaired and I could come and pick it up. I paid $674 for that repair. I got three miles from the dealership and the original problem occurred. I had it towed back to Mazda and it has been there ever since!! They replaced they're (traction control module), but that didn't fix it. After test driving it the original problem occurred! It's still at Mazda.

Filed Mar 10, 2021 · Transmission · 119,000 miles · IA

2010 mazda cx-9 awd touring with under 120,000 miles. The vehicle would make a noise like driving over rumble strips in the road, vibrating the undercarriage. It started happening when lightly pressing the accelerator, trying to maintain speed, normally at 1500rpm then it gradually got worse and happened all the time and the noise got louder. Sometimes there would be a burning smell. I spent $1000+ on "fixes" before discovering it was the transfer case, another $2,000+. Since mazda already knows about the issue and has provided 2 extended warranties for this issue, the transfer case for the defective years/models should be on them. After researching this problem I have seen many people having to replace the transfer case multiple times.

Filed Jun 30, 2020 · Transmission · 102,438 miles · TX

When driving, 40-45 MPH the transmission starts jerking and shuttering. Finally makes it to 5th gear. Then does the same thing when shifting from 5th to 6th gear. When this happens the entire SUV starts shaking and jerking. Fear could cause loss of control of the vehicle.

Filed Mar 29, 2019 · Transmission · OH

Transfer case for my mazda cx-9 has gone bad for the third time since I have owned this vehicle. Most recently the transfer case was burning causing a powerful smell which went through my entire house. The smell was so bad that I actually called the fire department to verify I did not have natural gas leak. This is a known issue with the cx-9 and defective transfer cases. My local dealership has assisted me and tried to reduce repair costs as much as possible. However, mazda refuses to fully cover part which most likely caused my transmission failure as well in august 2018.

Filed Jan 7, 2019 · Transmission · SC

The transfer case was replaced at 34,000 miles and now we are having to replace the transfer case again. Additional transmission damage may have occurred. Mazda refuses to stand behind their product and admit to a design flaw. The first transfer case smelled like propane. The second transfer case had gear grinding noise

Filed Dec 5, 2018 · Transmission · 45,100 miles · MA

The power transfer unit needs to be replaced and the vehicle only has 45,000 miles on it. Mazda had issued a voluntary extended warranty of this part but although my vehicle is well under the mileage (90,000) mazda is telling me that it is out of warranty. Mazda issued the extended warranty because they knew there was a problem with the part and that it was a poor or defective design. This should have been a recall issue not a wait and see when it fails and hopefully it is outside of our extended warranty period.

Filed Sep 26, 2018 · Transmission · 145,000 miles · CT

I was driving my 2010 mazda cx9 when a loud bang happened. I was on a side road and stopped immediately, I could not visibly see any issues. I began to drive slowly and with every rotation the noise continued. Luckily I was next a a garage and they determined it with the power transfer unit (case). They had told me this is a very common issue and that mazda even knew of this issue but never had a recall placed. After researching and seeing multiple years of this issue for the cx 9 and even an extended warranty something has to give mazda. Basically the front transfer case (or power transfer unit, ptu) is too close to the exhaust system and gets heated up more than usual. The gear lubricant inside gets deteriorated a lot faster and becomes sludge. In theory gear lubricant in front transfer case、rear differential、and manual transmission can be "life-time" lub under a suitable environment, hence mazda and ford don't specify any recommended maintenance interval for gear lubricant replacement and don't even bother to design a drain hole for it! But since the gear lub actually gets heat up so often, it causes problems and makes the front transfer case eventually failed due to sludge issue. I have read 100's of complaints and still no resolution except for the people that claim they called mazda directly and after months of complaints were handled individually. I have been a lifetime mazda owner from my first 1986 mazda 323 and this has been a nightmare. A recall has to be made with this number of complaints and issues. $3000 out of pocket for a known issue with your vehicle is unacceptable

Filed May 13, 2018 · Transmission · 62,000 miles · CA

This mazda cx-9 is a 2010 with about 62000 miles on it. I was driving on a highway with 70 MPH. Suddenly, I heard noise and crack. Shortly, after, the car lost power and it won't go forward. Took it to the mechanic and they found the power transfer unit broken. Replacement was $3000. Went back to my paperwork. Found that ptu is under extended warranty program including only 84 months or 90000 miles. I sent reimbursement to the mazda and they refused claiming that the car warranty is more than 84 months (which is not true). It is really disappointing that I have to hire a lawyer to get this flaw in mazda's design reimbursed. The warranty does not start on jan 1st of the manufacturing year. I had to pull the carfax to prove that they car was purchased after april of 2010 to prove the 84 months window is valid. They have this information but they decided to play ignorant. In any case, this a major flow in the cx-9 design for the ptu. They have to take responsibility for such flow and they need to be accountable for such sloppiness in their product that endangers lives on the street. All these cars should be taken off the streets.