2018 Mazda Mazda6 problems and complaints
Owners have filed 60 complaints with NHTSA about the 2018 Mazda Mazda6. The most-reported areas: Engine (34), Power Train (9), Unknown Or Other (9).
Key takeaways
- 60 owner complaints on file with NHTSA.
- 1 involve a crash, 1 a fire, 1 reported injury.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Engine | 34 | 57% |
| Power Train | 9 | 15% |
| Unknown Or Other | 9 | 15% |
| Fuel/Propulsion System | 4 | 7% |
| Service Brakes | 4 | 7% |
| Electrical System | 4 | 7% |
| Suspension | 3 | 5% |
| Fuel System | 3 | 5% |
| Gasoline | 3 | 5% |
| Wheels | 2 | 3% |
| Structure | 2 | 3% |
| Visibility/Wiper | 2 | 3% |
One complaint can name several components, so shares add up to more than 100%.
Parts for the 2018 Mazda Mazda6
GarageDex's verified specs for this car. Each Buy button searches Amazon for that exact part.
- Battery
- Engine oil
- Engine air filter
- Cabin air filter
- Wiper blades
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| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2018 Mazda Mazda6 4 DR FWD | 5/5 | 5/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Engine - filed 2026-11-03
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
Engine - filed 2026-10-29
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 Mazda sites both show ...
Tether, Lower Anchor (on Car Seat Or Vehicle),other/I Am Not Sure - filed 2026-08-29
Have had 3 seats replaced under warranty by Graco and was told to make a report with you. The rigid latch anchors on two have been faulty after 2 months. The second one got stuck in the installed base and pulling the release button did nothing. The rigid latch on the first got stuck in the open position. The second the...
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More for the 2018 Mazda Mazda6
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.