repaired · 2024 Q2
Delivery: fuel pump
Risk. Fuel pump failure may cause an engine stall, increasing the risk of a crash.
2018 Mazda CX-9Problems, recalls & complaints
NHTSA has logged 128 owner complaints about the 2018 Mazda CX-9, most often about the engine. It is covered by 2 safety recalls, and for recall 21V-875 the manufacturer reports only 84% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through September 17, 2026. Updated daily. Photo: Thomas Rosquin, CC BY-SA 4.0.
Complaints by system
Where the 2018 Mazda CX-9 has problems
128 complaints grouped by the system owners reported.
76Engine
15Electrical system1 crash/fire/injury
13Power train
11Service brakes2 crash/fire/injury
5Fuel/propulsion system
4Forward collision avoidance
3Visibility/wiper
3Back over prevention
3Steering
1410 other systems2 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine | 76 | 0 |
| Electrical system | 15 | 1 |
| Power train | 13 | 0 |
| Service brakes | 11 | 2 |
| Fuel/propulsion system | 5 | 0 |
| Forward collision avoidance | 4 | 0 |
| Visibility/wiper | 3 | 1 |
| Back over prevention | 3 | 0 |
| Steering | 3 | 0 |
| 10 other systems | 14 | 2 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
2 recalls
2018 Mazda CX-9 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2020 Q4
Electrical system: wiring
Risk. The passenger frontal air bag may not deploy, increasing the risk of injury.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mazda.
Owner-reported costs
What owners say repairs cost
Dollar amounts owners wrote in their complaints when describing a repair or a quote. These are not price estimates; a system is shown only when at least 8 owners mentioned a cost.
Engine
9 owners mentioned a cost$9,800median
Middle half: $7,600 – $11,000
If a problem is covered by a recall, the dealer fixes it for free. Some manufacturers also reimburse owners who paid for a repair before a recall was announced.
Best & worst years
2018 vs. every other CX-9 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the CX-9 median. How we score
'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23
- Avoid
- Caution
- Solid
- Best
- Not rated
NHTSA crash tests
2018 Mazda CX-9 safety ratings
2018 Mazda CX-9 SUV FWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
★★★★★
Frontal crash★★★★★
Side barrier★★★★★
Side pole★★★★★
- Rollover: 4 stars (15.9% risk)
- Stability control: Standard
- Forward collision warning: No
- Lane departure warning: No
In owners' words
What CX-9 owners report
Recent engine complaints filed with NHTSA, shortened. Personal details are removed.
While driving at highway speed in heavy rain the oil light suddenly came on followed within 30 seconds by an urgent need to immediately stop the car due to overheating. There was no radiator fluid left due to the sudden and catastrophic structural failure caused by a known manufacturing defect.…
My 2018 Mazda Cx-9 equipped with the skyactiv-g 2.5T developed a serious cylinder-head/cooling-system failure. The vehicle began to lose coolant with no apparent external leak and subsequently displayed and engine -overheating warning. It continued to lose coolant after a flush. The Mazda…
I was driving home from work and may car started overheating out of nowhere. I was stuck in traffic and white smoke was exiting my exhaust. I pulled over and all of my coolant leaked out of my car. Took it the shop and they said I had a cracked head and need a whole new engine. I seen that there…
Own a 2018 CX-9?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.