AI Damage2017 Mazda CX-9: common problems
Owners of the 2017 Mazda CX-9 filed 61 complaints with NHTSA, most often about engine and fuel/propulsion system. The maker issued 315 service bulletins for this year. Details by component below, with sources.
Key figures
- Owner complaints
- 61
- Technical service bulletins (TSB)
- 315
What fails most often
- 1 Engine 70% of all complaints
- 2 Fuel/propulsion system 10% of all complaints
- 3 Powertrain 7% of all complaints
- 4 Suspension 7% of all complaints
- 5 Electrical system 3% of all complaints
- 6 Steering 3% of all complaints
- 7 Wheels 3% of all complaints
- 8 Forward collision avoidance 3% of all complaints
- Engine: 43 complaints (70% of all); manufacturer bulletins for this component: 22.
- Fuel/propulsion system: 6 complaints (10% of all); manufacturer bulletins for this component: 6.
- Powertrain: 4 complaints (7% of all); manufacturer bulletins for this component: 31.
- Suspension: 4 complaints (7% of all); manufacturer bulletins for this component: 11.
- Electrical system: 2 complaints (3% of all); manufacturer bulletins for this component: 90.
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 cylnamed in 1 complaints
- automatic, 6-speed
Drive: FWD, 4WD
Symptoms owners describe
How many of the 61 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 | 43 | 0 | 22 |
| Fuel/propulsion system | 6 | 0 | 6 |
| Powertrain | 4 | 0 | 31 |
| Suspension | 4 | 0 | 11 |
| Electrical system | 2 | 0 | 90 |
| Steering | 2 | 0 | 16 |
| Wheels | 2 | 0 | 12 |
| Forward collision avoidance | 2 | 0 | 5 |
| Structure | 1 | 0 | 23 |
| Visibility | 1 | 0 | 8 |
| Backover prevention | 1 | 0 | 1 |
| Seats | 1 | 0 | 1 |
| Equipment | 0 | 0 | 107 |
| Engine and cooling | 0 | 0 | 36 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
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 and broken one of my finger nail. I tried aging in disbelief it happened aging this shouldn't be happening it could've broke my fingers.
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 blown gasket and needs an engine replacement.
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 the full 8 years I have owned the car.
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 causing the car to loose coolant and oil.
Coolant leak cylinder head. It was running and i could smell coolant on the minifalda and it shout down.
My 2017 Mazda Cx9 was stalling and jerking while driving almost causing an accident but glad I was able to drive it home without causing an accident. Took the car to the dealership and was advised that it needs a new engine due to coolant leak. The coolant was going inside the vehicle.
This is the second time my car mazda -2017 had problem with fuel pump. I only saw recall for 2019 Mazda CX-9 in internet. Before the fuel pump fail, I smelled gas inside the car which I was told my mechanic later from the shop where I bought my car for immediate diagnose was considered dangerous.
While driving in normal, operating conditions, the engine cut off and had to pull off to the side of the road. After checking the OBD two error code from the check engine light, there was an error with the fuel pressure rail sensor.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 787 of 2,102 model years in the NHTSA data (top 37% most complained about).
On average one model year of the CX-9 has 53 complaints (8 years in the data). This year has 61, above average.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Suspension. Wheel alignment, control arms, subframe, even tire wear.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...),…
If 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 asking if any aftermarket devices have been…
- Some vehicles may require the replacement of a damaged VIN plate or vehicle certification label
To obtain a replacement VIN plate (bulkhead-mounted and visible through the lower-left area of the windshield), contact DAG (Dealer Assistance Group) using VIN Plate Request Form available on One Mazda. To obtain a…
- Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems
Mazda recommends dealers follow the scheduled maintenance tables as cited in the vehicle-specific workshop manual or owner's manual. Services performed outside of Mazda's factory scheduled maintenance are not…
- If an engine assembly is replaced after a catastrophic internal mechanical failure, clean the intake…
If an engine assembly is replaced after a catastrophic internal mechanical failure, clean the intake manifold internally before installing a replacement engine assembly. If the intake manifold is not cleaned properly…
- Some vehicles may exhibit rattling noises from the engine compartment and oil leakage from the drive belt…
Some vehicles may exhibit rattling noises from the engine compartment and oil leakage from the drive belt auto tensioner. This may be caused by insufficient sealing at the drive belt auto tensioner damper when the auto…
- There are currently 2 methods for cutting a new auxiliary key blank
A. Auxiliary Key Trace Cut Method • B. Auxiliary Key Code Cut Method 2019 and newer models require a 10-digit key code to accurately cut keys • 5-digit codes CANNOT be provided for 2019 and newer vehicles (the…
- Some customers may report an odor or water in the HVAC system and upon inspection, the cabin air filter…
Some customers may report an odor or water in the HVAC system and upon inspection, the cabin air filter may be found to be wet.
- A musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating
It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C evaporator/cooling unit which is caused by condensation, dust, and pollen within the cooling unit. This condition…
- When inspected, the differential or PTO oil is dark or black
This is considered normal and NO repair should be performed. During production, differential ring and pinion gears receive a manganese phosphate coating (commonly referred to as black oxide). This coating forms a…
- Some vehicles exhibit brake related concerns such as brake noise, brake judder or brake dragging
If you encounter a customer complaint for any one of these symptoms, refer to the following information to understand why symptoms may occur, and to better assist the customer in resolving their specific brake concern…
- Some customer's might state that they notice fluid or oil leaking/dripping on the ground when the vehicle…
Some customer's might state that they notice fluid or oil leaking/dripping on the ground when the vehicle is parked. For this concern, inspect the vehicle for any trace of a fluid or oil leak and use the following…
- Noise, Vibration, and Harshness (NVH) Diagnostic Guidelines Diagnostic Guidelines When diagnosing NVH…
Noise, Vibration, and Harshness (NVH) Diagnostic Guidelines Diagnostic Guidelines When diagnosing NVH concerns, it is essential to first classify the issue into one of three primary categories: Noise, Vibration, or…
NHTSA lists 315 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2017 Mazda CX-9?
Owner complaints to NHTSA most often mention: engine, fuel/propulsion system, powertrain. Total complaints: 61. The most frequent symptoms in complaint texts: overheating, coolant loss (44%), warning lights, check engine (20%), engine failure or replacement (11%).
How many service bulletins (TSB) were issued for the 2017 Mazda CX-9?
NHTSA lists 315 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2017 Mazda CX-9 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2017 models
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.