2018 Mazda MAZDA6Problems, recalls & complaints

NHTSA has logged 60 owner complaints about the 2018 Mazda MAZDA6, 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 November 3, 2026. Updated daily.

Complaints by system

Where the 2018 Mazda MAZDA6 has problems

60 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Engine341
Power train90
Fuel/propulsion system40
Electrical system41
Service brakes40
Suspension30
Fuel system, gasoline30
Wheels20
Structure20
8 other systems91

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

2 recalls

2018 Mazda MAZDA6 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.

84%repaired · 2024 Q2

Delivery: fuel pump

Recall 21V-875 · Nov 12, 2021 · 121,038 vehicles · 101,565 repaired

Risk. Fuel pump failure may cause an engine stall, increasing the risk of a crash.

Problem, fix and repair progress →

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.

Best & worst years

2018 vs. every other MAZDA6 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 MAZDA6 median. How we score

'02'03'04'05'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
NHTSA crash tests

2018 Mazda MAZDA6 safety ratings

2018 Mazda Mazda6 4 DR FWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.

★★★★★Overall rating
2018 Mazda MAZDA6 frontal crash test, NHTSA
Frontal crash★★★★★
2018 Mazda MAZDA6 side barrier test, NHTSA
Side barrier★★★★★
2018 Mazda MAZDA6 side pole test, NHTSA
Side pole★★★★★
  • Rollover: 4 stars (10.3% risk)
  • Stability control: Standard
  • Forward collision warning: Optional
  • Lane departure warning: Optional
In owners' words

What MAZDA6 owners report

Recent engine complaints filed with NHTSA, shortened. Personal details are removed.

Cracker cylinder head at only 68,000 miles on it. No warning came on, only reason we knew it started was oil leaking really bad
Complaint 11775519 · Nov 3, 2026
I'm having an issue getting the recall serviced. Apparently, because the car's VIN number traces it's origin to [XXX], Mazda USA is unable to confirm the recall notice and the local dealership (Norcross Mazda) couldn't confirm it either when I tried to book an appointment. Mazda USA and the local…
Complaint 11774527 · Oct 29, 2026
The car only has 70k miles on it. The engine started smoking under the hood. Immediately stopped to look. There was oil leaking but I could not see from where. I took it across the street to the Toyota dealership and had them look at it. They explained to me that there was a crack in the cylinder…
Complaint 11755535 · Aug 7, 2026

Own a 2018 MAZDA6?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.