Reliability, what owners report, and what it costs to keep.
AVOIR's read: a solid ownership case with specific caveats below.
Owners have filed 61 complaints with NHTSA about the 2017 Mazda CX-9, and it carries no recalls. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Engine | 34 | 56% |
| Fuel/propulsion system | 4 | 7% |
| Unknown or other | 4 | 7% |
| Unknown or other | 3 | 5% |
| Suspension | 3 | 5% |
| Unknown or other | 2 | 3% |
| Steering | 1 | 2% |
| Back over prevention | 1 | 2% |
| Steering | 1 | 2% |
| Power train | 1 | 2% |
Verbatim from NHTSA complaint records, trimmed for length.
this is covered under csp11. the problem is my car is a 2017 and they only allow a warranty up to 120,000 miles mine is at 158000 and they will not fix the problem now even thought we just started having problems.
NHTSA complaint: Engine
Engine running rough. Check Engine Light illumination. Difficulty starting or a no-start condition. Noticeable loss of power during acceleration Check engine light P0192
NHTSA complaint: Fuel/propulsion system
The car was jump start due to a bad battery it cold and the light was left on. Right after the jump start a check engine light can on. When I put the vehicle in drive to turn the steering wheel it violently snapped bad a
NHTSA complaint: Steering
I took our vehicle into Mazda due to a coolant leak that could not be located. It had my wife stranded due to the vehicle overheating. Everything lined up with CSP11. The dealership is now stating that the vehicle has a
NHTSA complaint: Engine
My infotainment screen goes black 10-12 times a year, and therefore I lose access to my backup cameras. I have to turn the car off, and then back on, in order for the screen to function again. This has been happening for
NHTSA complaint: Back over prevention
I was driving the vehicle on the highway when the vehicle started to overheat, lights started blinking, the car was smoking, losing power and acceleration. This car has a recall on the cyclindwr head which when cracks ca
NHTSA complaint: Steering
Vehicle experienced coolant leak also oil leak from rear of engine. Broken cylinder head due to turbo too close to head
NHTSA complaint: Unknown or other
Coolant leak cylinder head. It was running and i could smell coolant on the minifalda and it shout down.
NHTSA complaint: Power train
| Reliability raw | 87 | excellent |
|---|---|---|
| Longevity est. | 80 | excellent |
| Maintenance | 80 | excellent |
| Depreciation | 87 | excellent |
| Performance | 67 | good |
| Efficiency | 43 | below average |
Percentile ranks against other SUVs in the catalog.
What stands behind each score for this car:
Owners have filed 61 complaints with NHTSA for this model-year, and engine is the most reported area with 34 of them (56%). No recalls are on record for it.
AVOIR scores its reliability 87/100 (excellent) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 80/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2017 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: worth a look, because a solid ownership case with specific caveats below. Its overall ownership score is 78/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.