2020 Mazda Cx-9: Problems & Reliability
BEST2020 Mazda CX-9: BEST — 19 owner complaints (0.69 per 1,000 sold), 0.3× the CX-9 median year.
CarWhere's verdict score for the 2020 is 0.44, where 1.00 is a typical CX-9 year once complaints are weighted for severity and spread over time on the road; 0.75 or lower rates best. 58% of its complaints are severe — a crash, fire, injury or a safety-critical system.
Sources: NHTSA owner complaints (ODI), recall campaigns and manufacturer service bulletins, published U.S. sales, CarWhere verified buyer prices · Model years 2012–2023 compared · Updated 2026-11-07 · By CarWhere Research · Methodology
19
NHTSA complaints
0.69
Complaints per 1,000 sold
323
Service bulletins
1
Recall campaigns
2020 Mazda CX-9 recalls
1 recall campaign on federal record for the 2020; the campaign list is on NHTSA's record for the 2020 Mazda CX-9.
2020 Mazda CX-9 service bulletins
The manufacturer has filed 323 technical service bulletins with NHTSA for the 2020 — close to the 320 of the median CX-9 year from 2012 to 2023. Coded bulletins most often cover electrical system (110), engine & cooling (49), equipment adaptive/mobility (38). Bulletins are repair instructions for dealer technicians, not recalls.
The 2020 vs. the year before and after
From the 2019 to the 2020, owner complaints fell by more than half (51 → 19) — an improvement. The 2021 that followed rose 79% (19 → 34), so the 2020 is the cleaner of the two by count.
| Model year | Verdict | Complaints | Bulletins | Recalls | Avg. buyer-paid |
|---|---|---|---|---|---|
| 2019 CX-9 | CAUTION | 51 | 392 | 2 | — |
| 2020 (this page) | BEST | 19 | 323 | 1 | — |
| 2021 CX-9 | SOLID | 34 | 413 | 1 | — |
Prices are averages of CarWhere verified buyer transactions (shown when 3+ deals exist for the year). Full year-by-year table: Mazda CX-9 years to avoid.
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FAQ
Is the 2020 Mazda CX-9 reliable?
2020 Mazda CX-9: BEST — 19 owner complaints (0.69 per 1,000 sold), 0.3× the CX-9 median year. CarWhere's verdict score for the 2020 is 0.44, where 1.00 is a typical CX-9 year once complaints are weighted for severity and spread over time on the road; 0.75 or lower rates best.
What are the most common 2020 Mazda CX-9 problems?
The 2020 Mazda CX-9 has 19 NHTSA owner complaints and 323 manufacturer service bulletins on file; the component breakdown is on NHTSA's record for this model year.
How many recalls does the 2020 Mazda CX-9 have?
1 recall campaign on federal record for the 2020 Mazda CX-9. Recall completion is VIN-specific, so check the exact car.
How do I check a specific 2020 Mazda Cx-9 before buying?
Decode the VIN free at carwhere.com/tools/vin-decoder to confirm the build, then run the $9.99 CarWhere Full VIN Report for the exact VIN — recall, complaint, and service-bulletin record for this model year, the original window sticker where the manufacturer publishes one, and a market price check from verified buyers. One-time purchase, no subscription.
Sources & method
Complaint, recall and service-bulletin counts for the 2020 Mazda CX-9 come from NHTSA's Office of Defects Investigation; the per-1,000 rate divides complaints by published U.S. 2020 calendar-year sales; the verdict is CarWhere’s severity-weighted, time-on-road-adjusted score compared with the model’s own median year. The live complaint feed was unavailable at render, so the complaint count is the verdict engine’s stored count. Complaints are owner allegations, not verified defects. Full methodology.