2019 Mazda CX-9 problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
53 owner complaints analyzed
2 distinct recall campaigns
26,500 mi median reported failure mileage
Scope: 2019 model year. Data snapshot: . 14 complaints include usable failure mileage.
Most common problems
Engine is the most frequently named component, appearing in 23 of 53 complaints (43.4%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Engine operation | 5 | 9.4% |
| Braking behavior | 5 | 9.4% |
| Steering behavior | 3 | 5.7% |
| Electrical and battery issues | 2 | 3.8% |
| Transmission and shifting | 1 | 1.9% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Engine | 23 |
| Unknown Or Other | 14 |
| Electrical System | 7 |
| Power Train | 5 |
| Suspension | 3 |
| Back Over Prevention | 2 |
| Forward Collision Avoidance: Automatic Emergency Braking | 2 |
| Forward Collision Avoidance: Warnings | 2 |
Engine: 23; Unknown Or Other: 14; Electrical System: 7; Power Train: 5; Suspension: 3; Back Over Prevention: 2; Forward Collision Avoidance: Automatic Emergency Braking: 2; Forward Collision Avoidance: Warnings: 2
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 6 |
| 25,000 to 49,999 | 5 |
| 50,000 to 74,999 | 3 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 6; 25,000 to 49,999: 5; 50,000 to 74,999: 3; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
Under 25,000 miles has the most reports with usable mileage (6). 39 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 7 |
| 2023 | 14 |
| 2024 | 12 |
| 2025 | 7 |
| 2026 | 5 |
2019: 3; 2020: 3; 2021: 2; 2022: 7; 2023: 14; 2024: 12; 2025: 7; 2026: 5
Pattern summary
Engine leads the component reports. Engine operation appears in 5 complaint narratives. Braking behavior appears in 5 complaint narratives. Steering behavior appears in 3 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11526241 · 2023-06-09 (June 9, 2023)
On the last week of May, my car started experiencing sputtering and stalling out problems. I made an appointment at Mazda dealership for june 6th.meantime my husband checked all fluids and coolant was low so we topped up. Car was being driven very limited due to safety concerns. Then While driving on the freeway my car displayed a “excessive engine temperature, engine output will be limited” immediately my car reduced speed from about 65mph to under 15 mph while having my whole family including myself and 4 children in the car. We almost got hi…
Owner-reported narrative. Look up ODI 11526241 at NHTSA ↗
Owner report 11620217 · 2024-10-16 (October 16, 2024)
2019 CX-9 GT, 30K miles, in August found coolant leaking under the car. This was 5 months past the warranty (but only 30K miles!). After doing research online, I found this is a massively common issue with all engines from several years encompassing 2019, where the coolant leaks due to a cracked cylinder head. There is a TSB from Mazda, which requires replacement of the engine, once the crack is developed. I immediately called Mazda corporate on 8/15/2024 and opened the case with them. They said they can try to assist, but first I have to tak…
Owner-reported narrative. Look up ODI 11620217 at NHTSA ↗
Owner report 11280204 · 2019-11-14 (November 14, 2019)
TL* THE CONTACT OWNS A 2019 MAZDA CX-9. THE CONTACT STATED THAT THE VEHICLE'S COMPUTER AND ELECTRICAL SYSTEM FAILED. THE CONTACT STATED THAT THE EMERGENCY BRAKE DID NOT ENGAGE, THE LANE ASSIST DISENGAGED AND STEERED THE VEHICLE INTO ONCOMING TRAFFIC AND A DITCH, AND THE LANE DEPARTURE FEATURE FAILED TO ALERT THE DRIVER WHEN A VEHICLE WAS IN THEIR BLIND SPOT. THE VEHICLE WAS TAKEN TO BASS CARS AND TRUCKS (4032 WEST HOUSTON HARTE EXPRESS WAY, SAN ANGELO, TX 76901, [phone removed]) WHERE THE DEALER UPDATED THE COMPUTER; HOWEVER, THE VEHICLE'S CAME…
Owner-reported narrative. 100 miles reported. Look up ODI 11280204 at NHTSA ↗
Owner report 11375991 · 2020-11-23 (November 23, 2020)
MAZDA SMART BRAKING SYSTEM, FRONT RADAR WARNING LIGHTS COME ON AFTER CAR IS STARTED. WINDSHIELD AND FRONT EMBLEM IS CLEAN. NO INTENSE HEAT. COMES ON EVERY TIME WHEN STARTED. WILL NOT ALLOW CRUISE CONTROL TO BE SET. SOMETIMES A FUNNY BRAKE PEDAL FEEL WHEN APPLIED BUT DOES NOT BRAKE BY ITSELF....YET. THERE HAVE BEEN TSBS ON EARLIER MODELS WITH A REPLACEMENT FRONT CAMERA(FSC) FIX. MY CAR DOES HAVE THE 'NEW' CAMERA BUT IS OBVIOUSLY NOT FUNCTIONING PROPERLY.
Owner-reported narrative. 40,000 miles reported. Look up ODI 11375991 at NHTSA ↗
Owner report 11449850 · 2022-02-02 (February 2, 2022)
The front end especially on the drivers side front suspension. The noise seems to be coming from the control arms and ball joints area. I have reported this to the dealership many times since purchasing the vehicle new. They continue to say that there is no issue but the noise is not going away. I believe it is associated with this TSB but no recall has been made. I am very concerned as the steering feels looser than usual and may cause an accident. TSB 10170655 - DESCRIPTION Some vehicles may exhibit one or more of the following noises from t…
Owner-reported narrative. Look up ODI 11449850 at NHTSA ↗
Owner report 11616793 · 2024-09-27 (September 27, 2024)
My 2019 Mazda CX9 when you turn the steering wheel it makes a clicking noise. I brought car to a mechanic and was told there is a loose bolt in steering column. Mazda has a TSB bulletin on this issue TSB# 06-001/24 dated 01/23/2024. When I brought car to Palisades Mazda two other customers on line with me have the same issue. I looked on internet and found alot of people are having the same issue. Mazda is aware of this problem and it is a defect. Mazda is fixing this problem for cars under warranty but charging customers past warranty to repl…
Owner-reported narrative. Look up ODI 11616793 at NHTSA ↗
Owner report 11589375 · 2024-05-17 (May 17, 2024)
Have been making repairs back to back since I bought it had to do four oil changes within that year then tires were completely worn electrical problems kept freezing spark plugs completely burnt discs were really rust car automatically turned off even though the battery is still good and still had gas had that happen twice and did more of a history search in it has had more complaints before every time try to take it to Mazda always be something with their system
Owner-reported narrative. Look up ODI 11589375 at NHTSA ↗
Owner report 11627211 · 2024-11-25 (November 25, 2024)
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. Please investigate and make the manufacturer solve problems with the hardware or the software. Make sure the display shows a warning when the camera fails and the vehicle drives backwards. There may be children behind the car. Shifting into park and then into rever…
Owner-reported narrative. Look up ODI 11627211 at NHTSA ↗