2018 Mazda Mazda6: Problems & Reliability
AVOID2018 Mazda Mazda6: AVOID — 54 owner complaints (1.75 per 1,000 sold), rated on its recalls: 2 campaigns, 2 for fire or crash risk.
CarWhere's verdict score for the 2018 is 1.67, where 1.00 is a typical Mazda6 year once complaints are weighted for severity and spread over time on the road; the avoid line is 1.60, so this year clears it by 0.07. Severity drives it: 81% of those complaints report a crash, fire or injury or involve a safety-critical system (engine, powertrain, steering, brakes or fuel). Its raw count is below the median year, but it has been on the road only about 8 years, so complaints are arriving faster than for older Mazda6 years.
Sources: NHTSA owner complaints (ODI), recall campaigns and manufacturer service bulletins, published U.S. sales, CarWhere verified buyer prices · Model years 2010–2021 compared · Updated 2026-11-07 · By CarWhere Research · Methodology
54
NHTSA complaints
1.75
Complaints per 1,000 sold
547
Service bulletins
2
Recall campaigns
2018 Mazda Mazda6 recalls
2 recall campaigns on federal record for the 2018; the campaign list is on NHTSA's record for the 2018 Mazda Mazda6.
2018 Mazda Mazda6 service bulletins
The manufacturer has filed 547 technical service bulletins with NHTSA for the 2018 — more than the 388 of the median Mazda6 year from 2010 to 2021. Coded bulletins most often cover electrical system (150), engine & cooling (101), engine (73). Bulletins are repair instructions for dealer technicians, not recalls.
The 2018 vs. the year before and after
From the 2017 to the 2018, owner complaints held roughly level (59 → 54). The 2019 that followed fell by more than half (54 → 0), so the 2019 has the lighter record so far.
| Model year | Verdict | Complaints | Bulletins | Recalls | Avg. buyer-paid |
|---|---|---|---|---|---|
| 2017 Mazda6 | BEST | 59 | 514 | 1 | — |
| 2018 (this page) | AVOID | 54 | 547 | 2 | — |
| 2019 Mazda6 | TOO FEW REPORTS | 0 | 416 | 1 | — |
Prices are averages of CarWhere verified buyer transactions (shown when 3+ deals exist for the year). Full year-by-year table: Mazda Mazda6 years to avoid.
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FAQ
Is the 2018 Mazda Mazda6 reliable?
2018 Mazda Mazda6: AVOID — 54 owner complaints (1.75 per 1,000 sold), rated on its recalls: 2 campaigns, 2 for fire or crash risk. CarWhere's verdict score for the 2018 is 1.67, where 1.00 is a typical Mazda6 year once complaints are weighted for severity and spread over time on the road; the avoid line is 1.60, so this year clears it by 0.07.
What are the most common 2018 Mazda Mazda6 problems?
The 2018 Mazda Mazda6 has 54 NHTSA owner complaints and 547 manufacturer service bulletins on file; the component breakdown is on NHTSA's record for this model year.
How many recalls does the 2018 Mazda Mazda6 have?
2 recall campaigns on federal record for the 2018 Mazda Mazda6. Recall completion is VIN-specific, so check the exact car.
How do I check a specific 2018 Mazda Mazda6 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 2018 Mazda Mazda6 come from NHTSA's Office of Defects Investigation; the per-1,000 rate divides complaints by published U.S. 2018 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.