Recalls (2)
NHTSA lists 2 recall campaigns for the 2018 Mazda CX-9. Check whether yours was repaired with NHTSA's free VIN lookup ↗
Only NHTSA and your automaker know whether your specific car was repaired. PlainVIN shows every recall campaign listed for a model year, with the official text and how many cars have been fixed so far.
Check on NHTSA ↗Fuel Pump May Fail
- Summary
- Mazda North American Operations (Mazda) is recalling certain 2018 Mazda3, Mazda6, 2019 CX-3, 2018-2019 MX-5, CX-5, CX-9, and 2019-2020 Mazda2 vehicles. The impeller inside the low-pressure fuel pump may crack and deform, potentially causing the fuel pump to fail.
- Consequence
- Fuel pump failure may cause an engine stall, increasing the risk of a crash.
- Remedy
- Dealers will replace the fuel pumps, free of charge. Owner notification letters were mailed July 18, 2022. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 5321K.
Weak Retention Force of Wiring Harness Connectors
- Summary
- Mazda North American Operations (Mazda) is recalling certain 2018 CX-9 vehicles. The wiring harness may disrupt electrical communications and disable the passenger frontal air bag, turn signals, and/or engine starting system.
- Consequence
- The passenger frontal air bag may not deploy, increasing the risk of injury. Inoperable turn signals prevent the driver from signaling to other drivers, increasing the risk of crash.
- Remedy
- Mazda will notify owners, and dealers will repair the wiring harnesses, free of charge. The recall began July 26, 2019. Owners may contact Mazda customer service at 1-800-222-5500, Option 4. Mazda's number for this recall is 3419E.
PlainVIN shows public government records for education. It isn't a vehicle inspection or legal advice. Check your own VIN with NHTSA or your dealer.
Owner complaints (128)
128 complaints filed with NHTSA (owner reports, not verified findings). The engine is mentioned most often.
As reported by owners in their complaints. These are reports, not NHTSA findings.
Most-reported components
| Component | Complaints | % of 128 |
|---|---|---|
| Engine | 76 | 59.4% |
| Unknown or other | 19 | 14.8% |
| Electrical system | 15 | 11.7% |
| Power train | 13 | 10.2% |
| Service brakes | 11 | 8.6% |
| Fuel/propulsion system | 5 | 3.9% |
| Forward collision avoidance | 4 | 3.1% |
| Back over prevention | 3 | 2.3% |
| Steering | 3 | 2.3% |
| Visibility/wiper | 3 | 2.3% |
How 2018 compares with other CX-9 years
Best and worst CX-9 years →| Model year | Complaints | Recall campaigns |
|---|---|---|
| 2014 | 54 | 3 |
| 2015 | 35 | 2 |
| 2016 | 106 | 0 |
| 2017 | 61 | 0 |
| 2018 | 128 | 2 |
| 2019 | 53 | 2 |
| 2020 | 19 | 1 |
| 2021 | 39 | 1 |
| 2022 | 10 | 0 |
| 2023 | 13 | 0 |
Counts are owner reports, not failure rates. Higher sales years tend to draw more reports. Owners are still filing reports for recent model years, so these counts will grow. Source: NHTSA ODI, retrieved Oct 6, 2026.
Crash tests: 5 stars overall
Source: NHTSA 5-Star Safety Ratings (NCAP), 2018 Mazda CX-9 suv fwd, retrieved Oct 6, 2026.
Fuel economy: up to 24 mpg combined
- EPA annual fuel cost
- $2,800
- CO₂ tailpipe
- 362 g/mi
- EPA class
- Small Sport Utility Vehicle
What it costs you to run
Miles ÷ 24 mpg × $4.354 (EIA US average regular, week of Oct 5, 2026, all taxes included). Source: EPA · EIA.
EPA label estimates from lab tests; your mileage will vary.
Specs by configuration
| Engine · transmission | Drive | City / Hwy / Comb | EPA $/yr | CO₂ g/mi |
|---|---|---|---|---|
| 2.5 L 4-cyl · 6-speed automatic | Front-Wheel Drive | 22 / 28 / 24 | $2,800 | 362 |
| 2.5 L 4-cyl · 6-speed automatic | 4-Wheel Drive | 20 / 26 / 23 | $2,900 | 391 |
Source: EPA fuel economy data, retrieved Oct 6, 2026. Configurations are listed when EPA and NHTSA records match.
Looking at a 2018 CX-9 for sale?
Print a one-page buyer's checklist: each recall campaign with a box to tick when the seller shows proof of repair, the top complaint areas to inspect, crash stars, MPG, and a link back to this page.
Where to next
2018 Mazda CX-9 FAQ
How many recalls does the 2018 Mazda CX-9 have?
NHTSA lists 2 recall campaigns: 21V875000 (fuel pump), 19V403000 (electrical). Use NHTSA's VIN lookup to see whether a specific car was repaired.
What are the most common 2018 Mazda CX-9 problems?
Owners filed 128 complaints with NHTSA. Engine (76), Unknown or other (19), Electrical system (15) are mentioned most. These are owner reports, not verified findings.
What mpg does the 2018 Mazda CX-9 get?
EPA rates the 2.5 L 4-cyl · 6-speed automatic version at 22 city, 28 highway and 24 combined mpg. Other configurations are listed in the fuel economy section.
What safety rating did the 2018 Mazda CX-9 get?
NHTSA rated the 2018 Mazda CX-9 suv fwd 5 stars overall, with 4 stars frontal, 5 stars side and 4 stars rollover (15.9% rollover risk).
How does the 2018 CX-9 compare with other years?
Among the 2014–2021 Mazda CX-9 model years at least five years old, the 2020 drew the fewest complaints (19) and the 2018 the most (128). The 2018 drew 128. Counts are owner reports, not failure rates.
How this page was madeSources, processing, limits, review and changes
Data sources
- NHTSA recalls by vehicle
Retrieved Oct 6, 2026 - US DOT recall completion rates (data.transportation.gov)
Retrieved Oct 6, 2026 - NHTSA ODI owner complaints
Retrieved Oct 6, 2026 - NHTSA NCAP 5-Star Safety Ratings
Retrieved Oct 6, 2026 - EPA fuel economy data (licence confirmation pending)
Retrieved Oct 6, 2026 - EIA weekly retail gasoline prices
Weekly, all taxes included
Processing
- Complaints are counted per component. One complaint can list several, so component totals add up to more than the total.
- Fuel cost = miles per year ÷ EPA combined mpg × EIA weekly price for your region.
Limitations
- Complaint counts are owner reports, not verified findings or failure rates. There is no sales denominator.
- Recall campaigns are listed for the model year. Only NHTSA and the automaker know whether a specific car was repaired.
- Recent model years are still collecting reports.
Review
Data compiled automatically from the official files listed here.
Changelog
- 2026-10-06 Data refreshed from the official files.