2018 Mazda Mazda6 problems and recalls

55% of owner complaints on the 2018 Mazda Mazda6 related to the Engine (32 of 58).

58
Complaints
2
Recalls
1
Crash reports
1
Fire reports
1
Injuries
50.0
Severity index

Severity index 50.0 Medium. The index weights crashes, fires, injuries and fatalities per 100 complaints. How it is calculated.

Middle half of all tracked vehiclesThis vehicle: 50.0p25 46p75 80cleanestworst
Severity index against the quartile range for all tracked vehicles.

Ranked 73 of 122 by severity index among 2018 vehicles with at least 40 complaints, highest first. 40% of those vehicles scored lower. Full 2018 ranking.

Components cited in complaints

EngineEngine: 32 complaints (55.2%)32 55%Power TrainPower Train: 9 complaints (15.5%)9 16%Unknown Or OtherUnknown Or Other: 9 complaints (15.5%)9 16%Fuel/Propulsion SystemFuel/Propulsion System: 4 complaints (6.9%)4 7%Service BrakesService Brakes: 4 complaints (6.9%)4 7%Electrical SystemElectrical System: 4 complaints (6.9%)4 7%SuspensionSuspension: 3 complaints (5.2%)3 5%Fuel SystemFuel System: 3 complaints (5.2%)3 5%
A single complaint can cite more than one component, so shares total over 100%.
ComponentComplaintsShare of complaints citing it
ENGINE3255.2%
POWER TRAIN915.5%
UNKNOWN OR OTHER915.5%
FUEL/PROPULSION SYSTEM46.9%
SERVICE BRAKES46.9%
ELECTRICAL SYSTEM46.9%
SUSPENSION35.2%
FUEL SYSTEM35.2%

Complaints filed per year

06122019: 62020: 42021: 42022: 62023: 72024: 122025: 92026: 10 (partial year)192021222324122526
Complaints by the calendar year they were filed. The hatched bar is the current year to date.
YearComplaints
20196
20204
20214
20226
20237
202412
20259
2026 (year to date)10
Filings in 2023 to 2025 ran 2.0x those in 2020 to 2022 (28 against 14).

Recall campaigns

CampaignReportedComponentSummary
21V87500012/11/2021FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMPMazda 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.
19V49700027/06/2019ENGINEMazda North American Operations (Mazda) is recalling certain 2018-2019 CX-5, Mazda6, and 2019 Mazda3 vehicles. A software error in the powertrain control module (PCM) may cause the engine to stall.

Other Mazda Mazda6 model years

Severity index for every other model year on file. Compare all 8 years side by side.

Source. NHTSA public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-09-03. Complaints are unverified consumer reports. Totals vary with units sold and years on the road. Not affiliated with NHTSA or any manufacturer.