2009 Mazda CX-9 Engine Problems
- Complaints
- 4about this part
- Share
- 7%of 59 total for the year
- Median mileage
- 105,344miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine of the 2009 Mazda CX-9, 7% of the 59 complaints for this model year. Where a mileage was given, the median is 105,344 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was in the parking lot looking for a space when the engine suddenly shut off! Radio was still on. I had absolutely no control on the vehicle except for gliding to the parking spot ahead of me and braking. Once parked I turned the ignition key on off, took it out, re-inserted the key and restarted the car. The car responded normally. As a test, I backed out of the stall and parked in another one without any problem. 2 hours later the car started without any problem.”
NHTSA complaint #10588295, filed 2014-05, 73,687 miles“I purchased a used 2009 Mazda cx-7 in june 2012. In may 2014 my check engine light came on. I took the car to the nearest auto service station which was not a Mazda dealership and the engine stopped when they tried to turn it on. I had the car towed to a Mazda dealership and had a quote of $8,000 because I was told I needed a new engine. I purchased a 5 year/100,000miles warranty with american guardian in 2012 when I purchased the car. I filed a claim with american guardian and was told that the engine fail from lack of oil. …”
NHTSA complaint #10598132, filed 2014-06, 51,000 miles“Oil and coolant mixed together and cause engine to die with a service code of p0016 which means per the dealer that the engine needs to be replaced. I bought this car brand new and had it service by Mazda dealership consistently. This is common issue and Mazda manufacturer should be cover this issue for customers.”
NHTSA complaint #11301058, filed 2020-01, 147,000 miles“Suv would go off in the middle of the road or highway when traveling a high speed. Took it to dealer, they say that they found oil & water mix in the engine due to water pump failure, multiple symptoms would occur as due to this condition. This issue is very series, first you get no indiction of the problem, not sure why the water pump failure causes water to enter the motor and mix with oil, it must be a Mazda design problem, which they seem to know about and never issued a recall to get all the car fixed. …”
NHTSA complaint #10862356, filed 2016-04, 137,000 milesRelated service bulletins
- 11034447Jun 19, 2026This SA supersedes the previously issued SA(s) listed below. The changes are noted in Red. SA-061/25 12/17/25 DESCRIPTION If you encounter any type of electrical concern (e.g…
- 11032103Apr 21, 2026This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory…
- 11007019Aug 15, 2024If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by…
- 10154455Feb 4, 2019Some customers may complain of a check engine light on while driving the vehicle. If DTCs P2A04:00, P2272:00 and/or other DTCs are found during diagnosis, follow the repair…
- 10134916Feb 6, 2018ome customers may complain of a check engine light on while driving the vehicle. If DTCs P2A04:00, P2272:00 and/or other DTCs are found during diagnosis, follow the repair…
- 10092724Jun 24, 2016If an engine assembly is replaced after a catastrophic internal mechanical failure, clean the intake manifold internally before installing a replacement engine assembly. If the…
- 10085289Jun 24, 2016If an engine assembly is replaced after a catastrophic internal mechanical failure, clean the intake manifold internally before installing a replacement engine assembly. If the…
- 10092322May 27, 2016Workshop manual evap system leak inspection using the m-mds has been discontinued for some models. Instead, the workshop manual evap system leak inspection using evap leak tester…
- 10103922Feb 26, 2016Some vehicles may exhibit an engine coolant leak (a) between the lower radiator hose (b) and the thermostat housing (c). The lower radiator hose has been modified to improve…
- 10076633Feb 26, 2016Summary to be provided on a future date.
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2021 | 21 | 53% |
| 2020 | 5 | 26% |
| 2019 | 23 | 43% |
| 2018 | 76 | 59% |
| 2017 | 43 | 70% |
| 2016 | 68 | 64% |
| 2015 | 17 | 49% |
| 2014 | 19 | 35% |
| 2013 | 17 | 25% |
| 2012 | 25 | 11% |
| 2011 | 15 | 9% |
| 2010 | 23 | 12% |
| 2009 | 4 | 7% |
| 2008 | 6 | 3% |
| 2007 | 3 | 3% |
Other parts of the 2009 Mazda CX-9
17 complaintsAir bags
16 complaintsSuspension
6 complaintsTransmission and drivetrain
6 complaintsTires
3 complaintsExterior lighting
2 complaintsOther or unknown
2 complaintsSeat belts
2 complaintsSteering
2 complaintsWheels
2 complaintsEngine cooling
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2009 Mazda CX-9
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology