2021 Mazda Mazda6

Routine

Owners filed 17 complaints about this vehicle with federal regulators, most often about the engine. No safety recall has been issued.

What fails
ComponentReportsCrashesFiresInjuries
Engine11
000
Visibility/Wiper2
000
Unknown or Other2
000
Fuel/Propulsion System1
000
Back Over Prevention › Sensing System › Camera1
000

What owners reported

Newest filings
Back Over Prevention › Sensing System › Camera
Filed Jun 23, 2025OH

The Infotainment system malfunctions. The rear view camera freezes, not with the current conditions but a still picture of a street I do not recognize. This puts not only myself at risk for an accident but those of others as well. This malfunction has been taken into the dealership on two different occasions. Each time the dealer couldn't solve the issue. There is currently a class action lawsuit regarding the Infotainment system.

Unknown or Other
Filed Jul 1, 2024CA

Twice had low oil warning lamp appear. First time in July 2023, 2nd time in June 2024. Both times oil has just been changed 2-3 months prior. Saw articles that there was a recent lawsuit, which is why I am filling complaint as well. Not for lawsuit, but for repairs so this does not occur again.

Engine
Filed Dec 17, 2023CA

Engine oil low warning 2k miles after oil change and again a week after topping oil off.

Engine
Filed Jun 25, 2023FL

My car displayed a low oil level light between oil changes and after checking the dipstick it was low. No sign of visible oil leak so upon further research I was made aware of a TSB about defective valve seals causing excessive oil consumption. My cars VIN is in the affected range outlined in the TSB. Now when I drive it's likely that slow but permanent damage could be occuring in my vehicle.

Engine
Filed May 12, 2023MN

Low oil light comes on. Using excessive oil between oil changes.

Fuel/Propulsion System
Filed Apr 24, 2023CT

Oil Consumption Defect. I bought car on 7/10/21. Mazda aware of the problem at the time and still sold me the car. Since then I have had to add oil in between oil changes. Mazda states problem cannot be fixed. My car vin # included with defected cars. My Limited New Car Warranty will be up soon. I am aware others have concacted you with this problem. Can you tell me what is being done about this?

Engine
Filed Feb 28, 2023HI

Excessive oil burn. I have 12,7000 miles on my engine and the car is burning ~1 quart of oil every 3k miles and increasing.

Unknown or Other
Filed Oct 31, 2022NC

I been having problems with oil consumption in between oil changes,I am concerned with the potential for damage to other engine systems aside from the reported issue with the gasket stem seals. I been taking my car to the dealership and I been told they don’t have a solution and they don’t know how to fix it. This is a new car!!!

Engine
Filed Oct 31, 2022FL

The contact owns a 2021 Mazda Mazda6. The contact stated that the oil light continually illuminated on the instrument panel while driving at various speeds. The contact had taken the vehicle to the dealer where he was informed that the vehicle was consuming an excessive amount of oil. Upon investigation, the contact discovered information that a defective valve in the engine might have been the cause of the failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 11,800.

Engine
Filed Oct 18, 2022LA

Vehicle displays low engine oil light about every 1,000 miles due to burning oil from faulty valve stem seals from factory assembly. Mazda has acknowledged the defect but plans to only refill engine oil. The defect could lead to possible injury due to low oil which could cause the engine to seize and cause sudden loss of power.

Engine
Filed Sep 19, 2022FL

The engine oil low light has illuminated multiple times. I verified that there is no external engine oil leak. I have added oil and driven it for a couple thousand miles and the light is now on again. The car is brand new and should not be burning oil. Its a known issue as Mazda has a service bulletin but no fix for it. This is the bulletin number TSB-01-012/21.

Engine
Filed Jul 17, 2022FL

Excessive oil consumption. Recently purchased new vehicle with 0 miles. Oil low level warning light on at 3500 miles. Manually checked oil level. Added one quart. Online research indicates problem is created by faulty valve guide seals which allows oil into the engine combustion chamber and exhaust. Vehicle will be taken to dealership for inspection.

Engine
Filed Jul 13, 2022CA

The low oil pressure light had turned on shortly after my first oil change (roughly at around 6k miles). I had the service done at a trusted service shop back in April 2021. I wrote it off mentally thinking that it was just a one off thing and that the shop may have made a mistake and underfilled the engine because of unclear specifications between the mazda6 Turbo version vs other models within the same lineup. I measured the oil and confirmed it was low and topped it off with over a half quart of oil and never bothered with it again. Six months later I return to the same shop for an oil change at 11k miles. I had no issues up until the 17k miles month mark when I am about to schedule the oil service the low oil pressure light turns on once again. I top it off and go online to see similar experiences with the same issue experienced by other drivers.

Engine
Filed Jul 6, 2022FL

Low engine oil light came on at around 13,700. Last oil change was at 10,000 miles. Checked oil dipstick, oil level slightly below first marker hole.

Engine
Filed Jun 16, 2022NH

The issue I am experiencing is one that many are in regards to the oil consumption. My check oil light came on prematurely in regards to the recommended scheduling for these sorts of vehicles, at around 3500 miles approximately. This is a vehicle that experienced this issue under 10k miles.

Visibility/Wiper
Filed Apr 7, 2022TX

Sunroof exploded while on the highway. Nothing hit the glass. Glass was facing outward and no evidence if anything striking it. Major safety concern, easily could have blinded my wife or I.

Visibility/Wiper
Filed Dec 27, 2021NC

Visibility/safety issue with OEM Mazda windshields. Objects appear highly distorted from all angles, making it hard to judge distance, read road signs, and drive safely without a disorienting level of distraction occurring at all times. Some objects appear magnified while others seem shrunken, as well as shorter or taller than they actually are. Straight lines appear rippled and in some cases, completely broken. Operating the vehicle for more than a few minutes results in rapid eye fatigue, motion sickness, and vertigo.

17 of 17 complaints, reproduced as filed.

Across model years

Worst on record: 2009
YearComplaintsRecallsFiresDeathsAssessment
2021 — this page17000Routine
20202000Routine
20196100Routine
201858210Routine
201760100Routine
201677100Routine
201560300Routine
2014137400Routine
201323400Do not drive
201299620Do not drive
2011134610Do not drive
2010225920Do not drive
20093861030Do not drive
2008111520Do not drive
2007156621Do not drive
2006173610Do not drive
2005147650Do not drive
2004160751Do not drive
2003174920Do not drive
200228100Routine

Compare every Mazda6 year →

Reading this record

No unusual pattern of severe incidents in the complaint record.

Complaint counts track how many cars were sold and how long they have been on the road as much as they track quality. A common model from 2013 has had a decade to accumulate reports; a rare one from last year has not. The signal worth weighing is in the severity columns, in whether the same component keeps appearing, and in whether the manufacturer eventually opened a recall for it.

Most recent recall on file: none. Source: NHTSA Office of Defects Investigation.