AI DamageMazda CX-9: problems, complaints, bulletins
Summary for the Mazda CX-9 across 8 model years: 424 owner complaints and 735 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
What fails most often
- 1 Engine 54% of all complaints
- 2 Electrical system 11% of all complaints
- 3 Powertrain 9% of all complaints
- 4 Service brakes 8% of all complaints
- 5 Fuel/propulsion system 5% of all complaints
- 6 Forward collision avoidance 4% of all complaints
- 7 Structure 3% of all complaints
- 8 Steering 3% of all complaints
- Engine: 229 complaints (54% of all), 2 of them with a crash reported by the owner; manufacturer bulletins for this component: 189.
- Electrical system: 47 complaints (11% of all), 1 of them with a crash reported by the owner; manufacturer bulletins for this component: 908.
- Powertrain: 39 complaints (9% of all), 2 of them with a crash reported by the owner; manufacturer bulletins for this component: 198.
- Service brakes: 33 complaints (8% of all), 5 of them with a crash reported by the owner; manufacturer bulletins for this component: 158.
- Fuel/propulsion system: 22 complaints (5% of all); manufacturer bulletins for this component: 18.
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2.5 L · petrol · turbo · 4 cyl 2016–2023named in 6 complaints
- 3.5 L · petrol · 6 cyl 2007
- 3.7 L · petrol · 6 cyl 2008–2015
- automatic, 6-speed 2007–2023
Drive: FWD, 4WD, AWD
Symptoms owners describe
How many of the 424 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine | 229 | 2 | 189 |
| Electrical system | 47 | 1 | 908 |
| Powertrain | 39 | 2 | 198 |
| Service brakes | 33 | 5 | 158 |
| Fuel/propulsion system | 22 | 0 | 18 |
| Forward collision avoidance | 19 | 3 | 28 |
| Structure | 13 | 1 | 202 |
| Steering | 13 | 2 | 123 |
| Suspension | 13 | 1 | 61 |
| Visibility | 12 | 1 | 65 |
| Backover prevention | 10 | 2 | 10 |
| Seats | 8 | 1 | 57 |
| Air bags | 8 | 7 | 7 |
| Vehicle speed control | 7 | 1 | 6 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The vehicle was parked stationary in the driveway with the engine running for 3-5 minutes with the A/C on. The vehicle then accelerated forward into my garage causing damage. Once I entered the vehicle, both the dash and shifter displayed park.
During the head-on crash, no air bags inside the vehicle deployed. The contact sustained a concussion and right eye injury and later received medical attention. A Police report was filed at the scene. The vehicle was destroyed and towed to a local storage facility.
During this time, the driver reported: • Total loss of steering • Complete brake failure • No response to acceleration or driver input • No ability to slow, stop, or maneuver the vehicle • No meaningful warnings that allowed corrective action The vehicle became completely uncontrollable.
Backup camera shows three to four feet before red collision line is not accurate causing severe damage to my garage door.
Very very lucky that she didn't get knocked under the wheel by the still open door of the car! My question is this: Can automakers create a safety device to prevent this? If the engine is off and the car is not in park, and no driver is detected in the driver's seat, can they automatically apply the brake?
I was backing out of a parking spot while watching the backup camera when I felt a bump as if I hit something but the camera was showing I have enough space to the cars behind me. It turns out the backup camera image was frozen on the display and I had hit a car parked behind my car.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Frequently Asked Questions (FAQ) Index General Questions MAZDA CONNECT Indication Setup and Getting…
- If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...),…
- Some customers may complain about any of the following
- Customers having MAZDA CONNECT concerns should have their vehicle repaired using the following repair…
- Some customers may complain about any of the following
- Infotainment Reboot With Navigation Card Installed This Service Information is no longer valid
- Some customers may complain about the infotainment system and/or the MyMazda App showing incorrect clock…
- Some customers may complain about SiriusXM Travel Link, Traffic Plus showing expired even though the…
- Some customers may complain about any of the following
- Mazda Connect Frequently Asked Questions (FAQ) Index General Questions MAZDA CONNECT Indication Setup and…
- If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...),…
- Some customers may experience a Connected Vehicle failure
Repair videos
We do not copy videos: these are YouTube links credited to their authors. Amounts are as stated by the author and not verified by us.
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-04.