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Model-year record

2018 Mazda Mazda6
Image: Own work · CC BY 3.0

2018 Mazda Mazda6

See the complaints, recalls, crash rating, and fuel economy in the public record. Then check the mileage and history of the car you found.

This page shows records, not a buy or avoid call.

The same model year can include a well-kept car and a neglected one. Use these records to plan what to check. Use the specific-car check when you know the mileage.

Complaints filed

54

Reports to NHTSA, 2018

Safety recalls

2

NHTSA campaigns on record

NHTSA crash test

Overall NCAP rating

Combined MPG

No data

EPA estimate

Known issues

Engine issues lead owner complaints (39% of 54 reports), followed by power train (13%).

Engine39% · 21 reports
Power Train13% · 7 reports
Unknown Or Other13% · 7 reports
Electrical System6% · 3 reports
Fuel System6% · 3 reports
Service Brakes6% · 3 reports
Structure4% · 2 reports
Suspension4% · 2 reports

+ 5 more component categories with fewer reports.

Share of all 54 NHTSA complaints for this model year, grouped by the component owners named. Bars are scaled to the largest category. Examples: ODI 11734993, ODI 11733118, ODI 11729758, ODI 11719756, ODI 11694210.

Individual complaint reports(54)

Showing the 50 most recent reports
EngineApr 2026 · ODI 11734993Details +

Crack in Cylinder Head of engine. Mazda has been sued about this and have issued recalls on turbo engines, but not on non turbo ones though its the same systemic design issue with these engines. Wants me to pay 5-7k out of pocket.

Reported
Apr 2026
Incident date
Apr 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11734993 at NHTSA →
EngineApr 2026 · ODI 11733118Details +

My cylinder head is leaking coolant. There is a well known and well documented issue with these cylinder heads cracking due to poor casting. This has become such a big issue that Mazda has even recalled the cylinder heads, BUT, only if the engine is equipped with Turbo. However, this issue is becoming enormous even for non turbo owners and is a huge safety issue as it can lead to overheating, stalling, and further damage to other components. I feel very strongly that it is time for Mazda to take some responsibility and extend the cylinder head recall to the non turbo engines.

Reported
Apr 2026
Incident date
Jun 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11733118 at NHTSA →
EngineApr 2026 · ODI 11729758Details +

Car had a coolant leak due to cracked cylinder head that was defective from the factory it was fixed but now the car has engine problems again. Don’t want to keep having these issues in the future

Reported
Apr 2026
Incident date
Apr 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11729758 at NHTSA →
Power TrainApr 2026 · ODI 11728615Details +

System Failure: The Power Train (6-speed Automatic Transmission) suffered a major malfunction, documented by diagnostic codes P0731 (Gear 1 Incorrect Ratio) and P0780 (Shift Error). The vehicle is available for inspection. Safety Risk: The failure caused a sudden loss of propulsion while attempting to accelerate. This created an immediate risk of a rear-end collision and left the vehicle unresponsive in the path of oncoming traffic. The transmission's unpredictable shifting makes the vehicle unsafe to operate. Confirmation: The failure and the P0731 code were officially confirmed by Castle Mazda on March 2, 2026. The manufacturer (Mazda) has been notified but has denied a remedy, despite TSB MC-10160555-0001 addressing this specific internal defect. Warning Symptoms: There was no Check Engine Light or dashboard warning prior to or during the failure. The only warning was an extreme, abnormal mechanical grinding/clunking noise from the transmission. The lack of a malfunction indicator light (MIL) meant I had no electronic warning of a looming mechanical failure while in motion.

Reported
Apr 2026
Incident date
Mar 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11728615 at NHTSA →
EngineFeb 2026 · ODI 11719756Details +

Per Mazda inspection, the back side of cylinder head #3 has an oil leak which is leaking onto the exhaust manifold. This creates a direct fire hazard as Mazda said they highly recommend not driving it for that reason. The Mazda dealership inspected and confirmed the issue, it in February 2026, with only 74,000 miles on the vehicle.

Reported
Feb 2026
Incident date
Feb 2026
Mileage
Not provided
Outcome flags
None reported
Open ODI 11719756 at NHTSA →
Power TrainJan 2026 · ODI 11709431Details +

I recently discovered a significant oil leak near the exhaust manifold of my 2018 Mazda 6 (2.5L NA), which has resulted in visible smoke and a burning oil odor. Upon taking the vehicle to the nearest Mazda dealership for a diagnosis, the service department informed me that the vehicle has suffered a cracked cylinder head. An active oil drip is visible behind the engine near the exhaust manifold immediately upon starting the car; consequently, the engine is leaking oil directly onto the exhaust components. This condition not only renders the vehicle inoperable but also presents a significant safety and fire hazard. At the time of this writing, my vehicle has only 46,996 miles and has been meticulously maintained. This mileage is well under the 60,000-mile powertrain threshold and represents a premature failure of a major internal engine component. There are numerous reports on Mazda owner forums describing this identical issue occurring in Mazda 6, CX-5, and CX-9 models. Some owners have even reported instances of minor fires or active burning under the hood due to oil contacting hot engine components. Mazda released Technical Service Bulletin TSB #MC-10241612-0001 (SA-037-23), which includes a redesigned cylinder head for 2018–2020 Mazda 6, 2019 CX-5, and 2016–2020 CX-9 models, demonstrating Mazda’s awareness of this design flaw. While the TSB currently only specifies the 2.5L Turbo engines and not the naturally aspirated variants, there is substantial evidence that this is a widespread defect across these model years, unrelated to owner misuse or vehicle mileage. Mazda should take full responsibility by issuing a formal recall or providing an extended warranty to cover naturally aspirated engines, thereby addressing this problem and preventing further safety risks.

Reported
Jan 2026
Incident date
Dec 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11709431 at NHTSA →
EngineOct 2025 · ODI 11694210Details +

Cracked cylinder head causing oil leak and possible coolant leak. This is a known issue with this year and model. Mazda is trying to suggest the issue is only for the turbo engine, but the non-turbo engine is also defective, per countless reports online. I have a video from the service technician from the mazda dealership, but it is too big to upload.

Reported
Oct 2025
Incident date
Oct 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11694210 at NHTSA →
Power TrainSep 2025 · ODI 11688263Details +

Was driving then car suddenly shut down and all panel lights turned on. The car would not start after an hour it started but was Perkins when driving. Mechanics were unable to diagnose the issue.

Reported
Sep 2025
Incident date
Jul 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11688263 at NHTSA →
Service BrakesMay 2025 · ODI 11663276Details +

Premature caliper failure on front and rear. Ruined rotors at 40k miles, confirmed caliper failure by two service shops. Grinding/squeaking sounds intermittently been happening for since 30,000 miles

Reported
May 2025
Incident date
May 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11663276 at NHTSA →
Fuel SystemMay 2025 · ODI 11660947Details +

The contact owns a 2018 Mazda Mazda6. The contact stated upon taken the vehicle to the dealer for an oil change, the dealer notified the contact of a fuel leak. The dealer diagnosed the vehicle and informed the contact that the top of the fuel tank and bolts connected to the fuel pump were significantly rusted, causing the fuel leak. The dealer determined that the fuel tank and the fuel pump needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure and informed the contact that no assistance would be provided because the contact had already authorized the dealer to repair the vehicle. The failure mileage was approximately 75,000.

Reported
May 2025
Incident date
Mar 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11660947 at NHTSA →
EngineMay 2025 · ODI 11659983Details +

Bought used with 47k miles. Two weeks later, took it to my mechanic for an inspection, they found a massive oil leak on the back of the motor. Took it back to the dealership and they diagnosed it as a cracked cylinder head, for which there is a known TSB and warranty extension. Unfortunately, the warranty extension only covers a coolant leak from the cracked cylinder head, not an oil leak. Thankfully, the dealership took care of me but had they not, I was looking at a $7k+ repair on a car I had owned for 2 weeks. In the TSB, Mazda acknowledges that there were both design and manufacturing flaws for the affected model years. In acknowledging the issue, they should have issued a recall for affected vehicles, not a simple warranty extension

Reported
May 2025
Incident date
Apr 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11659983 at NHTSA →
Service BrakesMar 2025 · ODI 11646848Details +

I am having my brake pads changed at a local mechanic and when changing the pads, the mechanic was unable to change them because the rotors and calipers were rusted and the brake pistons stuck. The previous recall only considered Mazda 6 up to 2013 but my 2018 has had the same problem.

Reported
Mar 2025
Incident date
Mar 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11646848 at NHTSA →
Unknown Or OtherJan 2025 · ODI 11636672Details +

Software error/loss of engine power. No warning of this before it happens. The car completely loses power, and stalls or stops in the middle of me driving. This has happened on the freeway and risked my life as well as my husbands, and children. This same issue has been a previous recall and fixed in 2019 for my car, and now it is happening again.

Reported
Jan 2025
Incident date
Jan 2025
Mileage
Not provided
Outcome flags
None reported
Open ODI 11636672 at NHTSA →
Unknown Or OtherJan 2025 · ODI 11634788Details +

Coolant leaks at the cylinder head around the exhaust manifold causing my car to over heat. Also when my thermostat is set to the exact temperature for both sides my driver side blows cold and the passenger side blows hot

Reported
Jan 2025
Incident date
Dec 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11634788 at NHTSA →
EngineJan 2025 · ODI 11634029Details +

Driving in traffic and the engine temperature warning appeared on dash. Dealer has confirmed there is a large coolant leak from the cylinder head. Mazda released a technical service bulletin regarding the issue affecting Mazda6, cx-5 and cx-9, but I will have to pay for a head gasket replacement.

Reported
Jan 2025
Incident date
Dec 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11634029 at NHTSA →
EngineNov 2024 · ODI 11627463Details +

Cracked cylinder head near the exhaust manifold. Created a large oil leak. Oil on the exhaust is a fire hazard. After one quart of oil loss a low oil level light comes on. This is a reported problem. One version of the engine I have has a Mazda TSB and an extended warranty. TSB 01-0022/23 A local repair shop has diagnosed the problem.

Reported
Nov 2024
Incident date
Nov 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11627463 at NHTSA →
Unknown Or OtherSep 2024 · ODI 11616978Details +

My car has stalled out on me 6 times in traffic and wouldn’t restart for hours. I took it to the Mazda dealership and they told me nothing was wrong but it continues to happen. I need something done as soon as possible

Reported
Sep 2024
Incident date
Sep 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11616978 at NHTSA →
EngineSep 2024 · ODI 11616489Details +

Cracked Cylinder Head. At 50,400 miles. This is far too common of a problem for such a new car with so few miles. I have seen many similar reports online. My mechanic was baffled. This is a $5k cost AT LEAST. Mazda has a history of not covering these defects. And it IS a defect, not a simple wear and tear issue. A cracked cylinder head can eventually lead to engine failure, so it is dangerous to drive with it. The problem HAS been confirmed by an independent service center. I got a oil pressure warning sign.

Reported
Sep 2024
Incident date
Sep 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11616489 at NHTSA →
EngineAug 2024 · ODI 11607569Details +

The contact owns a 2018 Mazda 6. The contact stated that while merging onto a freeway the vehicle did not accelerate while pressing the accelerator pedal, lost automotive power. After turning the engine off and back on the vehicle operated as normal but later while driving approximately 65 MPH the failure had reoccurred while attempting the pass a semi-truck on the freeway. The check engine warning light had also illuminated and the vehicle was eventually towed to the local dealer who was unable to determine the cause of the failure. The vehicle was not yet repaired. The manufacturer was not yet contacted. The failure mileage was 67,000.

Reported
Aug 2024
Incident date
Jul 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11607569 at NHTSA →
EngineJul 2024 · ODI 11600610Details +

At less than 95,000 miles, the car suddenly started overheating. Coolant level was fine, maybe ever so slightly low (could still see the coolant in tubing and some in reservoir, which was closer to low than full). Replaced ECT sensor, thermostat and water pump which seemed to fix the issue. Drove for 9-10 days with no issues and it started overheating again. I was able to park quickly afterward at work (<10 seconds). Schedule for drop off at dealer (if car didn't show signs of overheating first (would have called tow truck). Checked fluid levels in car (was ~1Qt low) and topped it off. Drove to dealer (~30min ride) with no issues whatsoever. When dealer looked at it, they said cylinder was warped and leaking, requiring new engine. A just paid off car, with less than 100k miles on it, now needs a new engine that will cost more than half of what it's worth.

Reported
Jul 2024
Incident date
Jul 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11600610 at NHTSA →
Service BrakesApr 2024 · ODI 11582244Details +

On [XXX] I purchased a Mazda 6 at Ocean Mazda in Miami, Florida. The car has 18,700 miles. The reason why the car has only 18K miles it's because out of the 4 years we have owned it, it was not used as much as a result of the COVID pandemic and my daughter attending online classes. I have always done timely maintenance services as required by Mazda at our service dealer Ocean Mazda and have proof of maintenance records to confirm the minor maintenance that have been done, oil change, tire rotation, battery replacement and a recall. This past Saturday [XXX] I took our Mazda for an oil change; and I was informed that a Five Point Inspection showed that the Driver Rear brake caliper and pad needed to be replaced because it was measuring 2% lining compared to the three other calipers which showed a 6% lining. Since the 36 month warranty has expired the cost to replace the caliper is $875.20. I'm a mom simply concerned about the safety of my daughter and have zero knowledge about brake pads and calipers, but one thing that I do know is that I have owned multiple cars during my lifetime and have never had an issue with a caliper going bad and much less at 18K miles. I'm conscious of timely maintenance and take care of the cars I owned to lasts years. I asked my service advisor how is it possible that one caliper could go bad in a span of 2,500 miles when the prior inspection done in August 2023 showed all 4 calipers having a 6% lining as per the service report card? Furthermore, the inspection done recently shows the three remaining calipers at 6%. The answer I received from my advisor was that "calipers can go bad", sometimes due to a FAULTY caliper. A caliper on a car with 18K miles should not go bad unless it is a faulty caliper. Mazda should honor the repair as this is a hazard condition caused by their faulty part. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Reported
Apr 2024
Incident date
Apr 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11582244 at NHTSA →
Power TrainApr 2024 · ODI 11581010Details +

Noticed slight coolant leak, took car to mechanic, he stated cylinder head was cracked, & causing coolant to spray everywhere. Towed car to dealer. Was given repair estimate of over $11,000, for a new engine. I see a safety bulletin online for my year make & model car. This overheating can apparently cause an engine fire. So far, Mazda seems to be showing negligence & not properly addressing the issue for owners.

Reported
Apr 2024
Incident date
Mar 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11581010 at NHTSA →
EngineApr 2024 · ODI 11581032Details +

Start engine when cold and it knocks/ taps from the valve cover very loud, found a tab for valve lifters. Mazda said I’m out of warranty and it would be a 2k fix on a car I just bought second hand. A lot of other drivers have experienced the same issue and have even said it’s a safety issues as when it happens for long enough it could cause the cams to wear down causing the car to stall out in traffic or in a dangerous road situation. Very dangerous imo and should be fixed for free as Mazda admitted that it’s a design flaw of the HLA

Reported
Apr 2024
Incident date
Apr 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11581032 at NHTSA →
EngineMar 2024 · ODI 11578921Details +

Mazda has a huge issue with there HLAs hydraulic lash adjusters. I've driven the car for 60k+ miles and it's ticked every since I got the car. And many people in the community also have the issue. And Mazda says it's fine and to rev the car above 3k rpms. This issue needs to be resolved. Before my warranty went up they said they'd fix it at the dealer if it would tick while in there possession. That's just not reasonable the tick happened as random as it gets. Please please for the sake of Mazda and all it's owners make Mazda fix this as a recall. Many people in the US would be the happiest people in the planet not having to hear there 20k$ car tick like a broken old piece of junk. Thank you for listening. Your truly a franticly hopeless hard working america with a half broken car.

Reported
Mar 2024
Incident date
Mar 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11578921 at NHTSA →
EngineMar 2024 · ODI 11577033Details +

At 65,000 miles and on time maintenance a head gasket blew.

Reported
Mar 2024
Incident date
Mar 2024
Mileage
Not provided
Outcome flags
None reported
Open ODI 11577033 at NHTSA →
EngineFeb 2024 · ODI 11570493Details +

The engine has developed an oil leak that is a known manufacturing defect of Mazda 2.5 litre engines TSB #SA-031-21. The oil drips on the hot exhaust and sends smoke into the cabin and probably could start a fire. Also if the engine runs out of oil, it will cause the car to shut off and stall in traffic.

Reported
Feb 2024
Incident date
Dec 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11570493 at NHTSA →
EngineJan 2024 · ODI 11563581Details +

Cracked Head , not caused by anything I did.

Reported
Jan 2024
Incident date
Dec 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11563581 at NHTSA →
Electrical SystemDec 2023 · ODI 11560045Details +

Was at a drive in window and car turned off and couldn't restart. Windows and lights would work but car wouldn't restart. Could of been driving and would of crashed. Had 3 people family in car. It was 9 pm had to have towed to nearest auto mechanic place 150.00. They are diagnosing and that is 186.00. This is a scary thing and going to BBB and filing a complaint I'm mad as he'll. Have had inspection done on this car 2 months ago and all required services to this car. This was without warning which is horrifying.

Reported
Dec 2023
Incident date
Dec 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11560045 at NHTSA →
Back Over PreventionNov 2023 · ODI 11556828Details +

When I put my car on reverse the sensors beep continuously and give the impression that there are obstacles behind your car. I cleaned all the sensors, but noise is still there. I see a lot of posts regarding same issue.

Reported
Nov 2023
Incident date
Oct 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11556828 at NHTSA →
EngineOct 2023 · ODI 11548064Details +

Coolant leaking from head, informed by dealer the cylinder head is cracked and the entire engine needs to be replaced. The engine has just hit 80k miles at this point. This issue caused multiple instances of overheating while driving, one of which caused the vehicle to fail to move forward while on an elevated freeway overpass with no shoulder during rush hour. This issue appears to be widespread for 2016 and newer Mazda models with the 2.5L turbo engine.

Reported
Oct 2023
Incident date
Sep 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11548064 at NHTSA →
EngineJul 2023 · ODI 11530133Details +

I was driving my car, it overheated. I took it in and was told it needs a new engine. I was told it was not fault of my own why it overheated. It had 2 oil leaks and a blown head gasket.

Reported
Jul 2023
Incident date
May 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11530133 at NHTSA →
EngineMay 2023 · ODI 11522138Details +

Due to design issues, the engine cylinder head became cracked after normal everyday usage. Coolant began to leak badly and car engine became hot while driving.

Reported
May 2023
Incident date
Apr 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11522138 at NHTSA →
EngineApr 2023 · ODI 11519366Details +

Just noticed my coolant was leaking underneath my car and i went to mazda to check and it came out being a cracked cylinder the car are driven by my daughter from school to work only and has 68k miles, mazda doesn’t want to fix because supposedly the engine warranty only last until 60k

Reported
Apr 2023
Incident date
Apr 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11519366 at NHTSA →
Unknown Or OtherApr 2023 · ODI 11519167Details +

Mazda is producing and installing bad belt tensioner sand bad belts for new cars belt tensioner only lasts about 27,500 miles and belt only lasts 11 month/14,000 miles belt tensioner is a major safety issue

Reported
Apr 2023
Incident date
Apr 2023
Mileage
Not provided
Outcome flags
None reported
Open ODI 11519167 at NHTSA →
Unknown Or OtherAug 2022 · ODI 11479105Details +

Timing chain cover leak

Reported
Aug 2022
Incident date
Jan 2022
Mileage
Not provided
Outcome flags
None reported
Open ODI 11479105 at NHTSA →
Power TrainAug 2022 · ODI 11478968Details +

The contact owns a 2018 Mazda Mazda6. The contact stated that he had experienced a transmission surged on five separate occasions since owning the vehicle. There were no warning lights illuminated. The contact had taken the vehicle to the dealer after each failure and various unknown repairs and software updates were performed on the vehicle. However, the failure persisted after each visit. The manufacturer was notified of the failure and a case was opened. The vehicle was not repaired. The failure mileage was approximately 10,000.

Reported
Aug 2022
Incident date
Jul 2020
Mileage
Not provided
Outcome flags
None reported
Open ODI 11478968 at NHTSA →
EngineJun 2022 · ODI 11471396Details +

Took care for routine maintenance to car dealer (Ourisman Mazda Rockville MD). No problems with car. They reported that I had an 'Coolant Leak at the Cylinder Head'. Cost to fix: $6412.47 They reported that it was 'normal wear and tear'. I found a service bulletin from Mazda whereby they admit a manufacturing defect that affected 2.5T engines. They corrected on March 25th, 2021. However, engines prior to this date had this defect. No recalls were created. No warning to owners. My car was within the mileage warranty when they identified the defect (<60k miles and < 5 yrs old). While my car is less than 5 years old, they now identified the leak, but it has over 60k miles. The local dealer said I was out of warranty and there is nothing they could do. I spoke with Mazda North American Operation and reported the Technical Service Bulletin that they put out on 10/15/21 (after they had already identified the problem, re-engineered the engine, and changed the manufacturing line), I also explained what was reported to me by Ourisman Mazda and emailed her all the documents. She reported that she would be getting back to me in 24-48 hrs.

Reported
Jun 2022
Incident date
Jun 2022
Mileage
Not provided
Outcome flags
None reported
Open ODI 11471396 at NHTSA →
Fuel SystemApr 2022 · ODI 11460796Details +

The contact owns a 2018 Mazda Mazda6. The contact received notification of NHTSA Campaign Number: 21V875000 (Fuel System, Gasoline) however, the part to do the recall repair was not yet available. The dealer was made aware of the issue; however, the contact was informed that the parts were not yet available. The manufacturer had been notified of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. VIN tool confirms parts not available.

Reported
Apr 2022
Incident date
Nov 2021
Mileage
Not provided
Outcome flags
None reported
Open ODI 11460796 at NHTSA →
Fuel/Propulsion SystemApr 2022 · ODI 11459352Details +

Hello, I contacted Fremont mazda dealer to fix the below recall. I booked multiple appointment with this dealer to fix the recall but after visiting there service center location they give me reason they are unable to fix it by saying they don't have a part required for fixing the recall Manufacturer Recall Number5321K NHTSA Recall Number21V-875 Please help me to fix this recall as soon as possible. My next appointment schedule at fremont mazda delership on 9th Aptil. Dealer contact number +15104032525 Thanks, Akshay

Reported
Apr 2022
Incident date
Mar 2022
Mileage
Not provided
Outcome flags
None reported
Open ODI 11459352 at NHTSA →
Fuel SystemJan 2022 · ODI 11448661Details +

The contact owns a 2018 Mazda Mazda6. The contact stated that while driving at low speeds, the vehicle would hesitate upon the depression of the accelerator pedal without warning. The contact then received notification of NHTSA Campaign Number: 21V875000 (Fuel System, Gasoline) however, the part to do the recall repair was unavailable. The dealer was also notified about the recall; however, the contact was informed that the parts were not yet available. The manufacturer had been notified of the recall. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The failure mileage was approximately 27,000. VIN tool confirms parts are not available.

Reported
Jan 2022
Incident date
Oct 2021
Mileage
Not provided
Outcome flags
None reported
Open ODI 11448661 at NHTSA →
Power TrainJul 2021 · ODI 11423596Details +

I took my car in for scheduled maintenance and the technicians at the Mazda dealer found out the tensioner and belt needed to be replaced, when the car is less than 36k in miles. Vehicles being repaired under warranty but a tensioner should not be going out this early in the lifespan of a 2 year old car. I have found a lot of people are complaining for the same issue. This can cause the cars to not run as there’s no notice ahead of time that the belt and tensioner are bad. I do have paper work stating tensioner problems. Vehicles should be recalled due to poor manufacturing and parts making it unsafe on the road.

Reported
Jul 2021
Incident date
Jun 2021
Mileage
Not provided
Outcome flags
None reported
Open ODI 11423596 at NHTSA →
StructureMay 2021 · ODI 11418333Details +

After only 3 years and less than 17,000 miles of driving, the soul red crystal metallic paint is chipping in many spots on the front of the body. There are at least 100 small chips on the hood, bumper, and front fenders. All of this occurred under normal driving conditions.

Reported
May 2021
Incident date
May 2021
Mileage
Not provided
Outcome flags
None reported
Open ODI 11418333 at NHTSA →
Visibility/WiperMar 2021 · ODI 11405758Details +

THE DRIVER SIDE MIRROR VIBRATES AT HIGHWAY SPEEDS MAKING IT EXTREMELY HARD TO SEE WHAT'S IN THE GLASS.

Reported
Mar 2021
Incident date
Mar 2021
Mileage
Not provided
Outcome flags
None reported
Open ODI 11405758 at NHTSA →
SuspensionMar 2021 · ODI 11405090Details +

THE FRONT AND REAR SUSPENSION POPS, CLUNKS, THE VEHICLE SHAKES, VIBRATION ALSO HAPPENS, IT ALSO CAUSING TIRES TO BE REPLACED FASTER THAN NORMAL THEY GO BOLD IN THE CENTER ITS CAUSING NOW THE AXLES TO SHAKE AT NIGHT TIME YOU CAN SEE THE REFLECTION FROM HEADLIGHTS BOUNCING, THEY HAVE TSB'S ON THIS SUSPENSION ISSUE HOWEVER NOT FOR 2018 ONLY 14-16 MAZDA 6S I BELIEVE AND SUPPOSEDLY THE ISSUE WAS CORRECTED WELL THEY LIED BECAUSE MINE IS A 18 AND IT IS A DISASTER, MY TRANSMISSION IS NOW SHIFTING VERY HARD FROM 1ST TO SECOND GEAR, TURN WHEEL IT MAKES A LOUD CLUNK SOUND OR POPPING SOUND, GO OVER A DIP IN ROAD DOES THE SAME THING, YOU GO OVER A BUMP THE VEHICLE FEELS SOGGY, IT LIKE DRIBBLES, IT CAUSES THE VEHICLE TO SWAY.. IT'S HORRIBLE, ALSO THE BRAKES WAS SHAKING AT 15K MILES, FOUND OUT IT'S TSBS ON THIS ISSUE AND OF COURSE THE DEALERSHIP DIDN'T FIX FOR FREE, CHARGED ME OVER 600 DOLLARS FOR A ISSUE THAT HAS A TSB ON.

Reported
Mar 2021
Incident date
Mar 2019
Mileage
Not provided
Outcome flags
None reported
Open ODI 11405090 at NHTSA →
Unknown Or OtherNov 2020 · ODI 11374972Details +

I WAS DRIVING ON A STREET AND MY CHECK ENGINE LIGHT, TCS/DSC LIGHT, SBS/SCBS LIGHT, MRCC LIGHT, AND WARNING LIGHT APPEARED ON MY DASHBOARD. MY CAR THEN STARTED PUTTING OR JERKY. IT FELT AS MY CAR WAS VERY WEAK AS IF IT WAS GOING TO GIVE OUT. THIS IS THE THIRD TIME THESE SAME MALFUNCTIONS APPEARED. EACH TIME IT OCCURRED I TOOK MY CAR TO THE MAZDA DEALERSHIP. THE FIRST TIME THEY DID NOT FIND A PROBLEM BECAUSE THE WARNING LIGHT HAD ALREADY TURNED OFF. THE SECOND TIME(SEPTEMBER 5), THEY GAVE ME A NEW BATTERY AND NEW COMPUTER SOFTWARE. IT IS NOW AT THE DEALERSHIP AGAIN. THIS SITUATION IS VERY SCARY AND I NEED TO KNOW WHY THIS IS HAPPENING

Reported
Nov 2020
Incident date
Nov 2020
Mileage
Not provided
Outcome flags
None reported
Open ODI 11374972 at NHTSA →
Electrical SystemAug 2020 · ODI 11349943 · fireDetails +

MY MAZDA6 SPONTANEOUSLY CAUGHT ON FIRE WHILE IT WAS PARKED ON A STREET AND COMPLETELY BURNED DOWN. THE FAULT/PROBLEM CAUSE IS UNKNOWN AT THIS TIME BUT I SUSPECT THERE WAS WIRING/ELECTRICAL FAULT AND MANUFACTURING AND DESIGN DEFECT. BOTH THE SHERIFF'S DEPARTMENT AND FIRE DEPARTMENT WERE INVOLVED IN ASSISTING ME IN THIS INCIDENT. I AM STILL WAITING FOR REPORTS FROM LAW ENFORCEMENT/FIRST RESPONDERS. MAZDA HAS REFUSED TO ADDRESS THIS SITUATION WITHOUT ME PROVIDING THEM WITH AN "INSPECTION REPORT SUPPORTING THE CLAIM A DEFECT WAS PRESENT AND SAID DEFECT CAUSED THE FIRE." AS I WAS ONLY A LESSEE OF THE VEHICLE, I HAVE NO POSSESSION OF THE VEHICLE AND, THEREFORE, I CANNOT ORDER AN INSPECTION ON THE VEHICLE. MAZDA IS ACTING IN BAD-FAITH.

Reported
Aug 2020
Incident date
May 2020
Mileage
Not provided
Outcome flags
Fire
Open ODI 11349943 at NHTSA →
StructureAug 2020 · ODI 11349287Details +

AFTER LESS THAN A YEAR OF LEASING THIS VEHICLE, AN ABUNDANCE OF ROCK CHIPS HAVE SHOWN UP, MORE THAN ANY OTHER CAR I'VE LEASED. THIS PAINT SEEMS EXTREMELY SUSCEPTIBLE TO FOREIGN OBJECTS. (THIS WOULD BE THE SOUL RED COLOR THEY USE.) ITEMS THAT SHOULDN'T CAUSE A SCRATCH DO, AND ROAD DEBRIS CAUSES CHIPS THAT SHOULDN'T FAR TOO MUCH.

Reported
Aug 2020
Incident date
Aug 2020
Mileage
Not provided
Outcome flags
None reported
Open ODI 11349287 at NHTSA →
SuspensionFeb 2020 · ODI 11311402Details +

I GOT THIS CAR IN MAY OF 2019 SO THE CAR IS STILL NEW AND EVER SINCE I PURCHASED THE VEHICLE I'VE BEEN HAVING ISSUES WITH IT FIRST WERE THE CALIPERS STICKING AND MAZDA GAVE ME A HARD TIME TO REPAIR THE ISSUE AFTER THE FACT KNOWING THAT IT WAS A MANUFACTURING ISSSUE AND STILL TRIED TO CHARGE ME I TOOK MY VEHICLE THERE MORE THEN 15 TIMES JUST TO DEAL THINGS GOING BAD IN MY CAR. MY CAR STALLS ON ME OUT OF NO WHERE WHEN I'M DRIVING WHICH IS DANGEROUS AND CAN CAUSE ME TO CRASH ALSO MY CAR BRAKES WHEN THERE ISN'T ANYTHING IN FRONT OF IT ALL MY MALFUNCTIONING INDICATORS ARE ON AND I HAVE VIDEO PROOF AND SHOWED IT TO MY SERVICE ADVISOR AND SERVICE MANAGER AND THEY STILL DIDN'T REPAIR MY CAR AND TOLD ME THAT I HAVE TO PAY OR GO SOMEWHERE ELSE ALSO MY SUSPENSION IS MAKING NOISES THEY DIDN'T WANT TO FIX IT AND AS WELL AS MY TIRES PEELING OFF FROM THE SUN ALREADY AND THEY SAY IT'S WEAR AND TEAR AND ASK ME FOR MONEY ALSO MY CAR DIES EVERYTIME I TURN IT OFF I HAVE TO EITHER GET A JUMP OR CALL ROADSIDE FOR ASSISTANCE I'VE BEEN DEALING WITH ISSUES WITH THIS CAR AND MAZDA CLEARLY DOESN'T CARE ABOUT THERE CUSTOMERS SAFETY AND ALWAYS ASK FOR MONEY WHEN THE VEHICLE IS STILL UNDER WARRANTY VERY DISAPPOINTED I'M STILL DRIVING THE CAR WITH ALL THE. ISSUES IT WAS BECAUSE MAZDA WON'T REPAIR MY CAR AND ALWAYS TRY TO PIN THE ISSUE ON ME WHEN KNOWING THAT IT'S THERE FAULT I TOOK IT TO MAZDA SEVERAL TIMES AND NOTIFIED THEM ON WHAT'S WRONG WITH MY CAR AND MY CAR STAYED THERE FOR 4 DAYS AND THEY DID NOTHING TO MY CAR JUST SITTING THERE FOR NOTHING I PAY TOO MUCH MONEY A MONTH AND FEEL LIKE IT'S FOR NO REASON BECAUSE MY SAFETY IS AT RISK I HATE DRIVING MY CAR BECAUSE I FEEL UNSAFE AND SCARED AND GOING TO MAZDA IS POINTLESS PLEASE HELP ME ON WHAT TO DO THANKS

Reported
Feb 2020
Incident date
Sep 2019
Mileage
Not provided
Outcome flags
None reported
Open ODI 11311402 at NHTSA →
Seat BeltsNov 2019 · ODI 11282286 · crash · 1 injuriesDetails +

TL* THE CONTACT OWNS A 2018 MAZDA 6. WHILE THE CONTACT'S FRIEND WAS DRIVING 55 MPH, HE VEERED OFF THE SIDE OF THE ROAD INTO A DIRT PATCH, AND STRUCK AN OBJECT. THE AIR BAGS DEPLOYED AND THE DRIVER'S SEAT BELT UNBUCKLED UPON IMPACT. THE AIR BAG DEPLOYMENT BURNED THE CONTACT'S RIGHT UNDERARM. MEDICAL ATTENTION WAS NOT RECEIVED. A POLICE REPORT WAS NOT FILED. THE CONTACT'S FRIEND WAS ABLE TO DRIVE THE VEHICLE BACK TO HIS APARTMENT. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND DID NOT ASSIST. THE DEALER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS APPROXIMATELY 18,000. *DT CONSUMER STATED PARTIAL RETRACT DUE TO PRETENSIONER FIRING. CANNOT BUCKLE ' 8 IN TOO SHORT. BOTH HANDS ON STEERING WHEEL. WEIRD SEAT BELT UNLATCHED.*JB

Reported
Nov 2019
Incident date
Nov 2019
Mileage
Not provided
Outcome flags
Crash 1 injuries
Open ODI 11282286 at NHTSA →
Power TrainAug 2019 · ODI 11246313Details +

VEHIXLE HAS OPEN RECALL #3719F. TOOK VEHICLE IN FOR SERVICE ON JULY 15 AND ACCORDING TO NHTSA RECALL HAS EVEN OUT SINCE JUNE 27.2019. TO THIS DAY I HAVE NOT GOTTEN ANY LETTER OR ANYTHING STATING CAR HAS OPEN RECALL WHEN THE CAR CAN TURN OF RANDOMLY. WILL BE TAKING CAR IN ON 08/26/19 BUT I'M CONCERNED AS TO WHY THIS HAS NOT BEEN ADDRESSED IN ANY LETTERS OR EMAILS

Reported
Aug 2019
Incident date
Aug 2019
Mileage
Not provided
Outcome flags
None reported
Open ODI 11246313 at NHTSA →

This page shows the latest 50 reports to keep it usable. The count above includes every complaint NHTSA has returned for this model year.

Recalls(2)

Open a recall to read what NHTSA says is wrong, what can happen, and how it gets fixed. Check the VIN and remedy eligibility with a dealer; federal no-charge requirements have an age limit, though a manufacturer may offer more coverage.

Fuel SystemDec 2021 · 21V875000Details +

Mazda 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.

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

Remedy: Dealers will replace the fuel pumps, free of charge. Owner notification letters were mailed July 18, 2022. Owners may contact Mazda customer service at 1-800-222-5500 Option 4. Mazda's number for this recall is 5321K.

Open full NHTSA recall record →
Engine · 19V497000Details +

Mazda 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.

Risk: An unexpected stall increases the risk of a crash.

Remedy: Mazda will notify owners, and dealers will reprogram the PCM software, free of charge. The recall began August 20, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda's number for this recall is 3719F.

Open full NHTSA recall record →

A campaign can apply to this model year without being incomplete on a specific vehicle. Check the VIN with NHTSA or a dealer to confirm whether a particular car needs repair.

Investigations

0 NHTSA investigations on record

No investigations are on record as of Jul 2026. An empty record is not a clean bill of health.

Crash-test ratings

2018 Mazda Mazda6 4 DR FWD NHTSA source

Overall
Frontal
Side
Rollover

Source: NHTSA New Car Assessment Program (NCAP).

Fuel economy by trim

No EPA fuel-economy record is available for this model year. Some trims and older vehicles were not tested or are not in the current EPA feed.

Before you buy

Useful next checks

Federal records tell you about patterns. These checks can tell you more about the specific car in front of you.

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Compare the year-by-year record

Open another year for its own evidence-gated decision. TireKick does not crown a best year from raw complaint totals.

2018 Mazda Mazda6: frequently asked

What does the complaint record show for the 2018 Mazda Mazda6?

Owners filed 54 NHTSA complaints about the 2018 Mazda Mazda6. This is raw owner-reported complaint volume with no production or exposure normalization, so it is not a reliability score or a best/worst-year ranking.

What are the most common problems on the 2018 Mazda Mazda6?

The most-reported problem areas are Engine (39% of complaints) and power train (13%).

How many recalls does the 2018 Mazda Mazda6 have?

2 recalls have been issued that affect the 2018 Mazda Mazda6, covering components such as fuel system. Check the VIN with NHTSA and ask a dealer to confirm remedy eligibility; federal no-charge requirements have an age limit, though manufacturers may offer more coverage.

What gas mileage does the 2018 Mazda Mazda6 get?

EPA fuel-economy figures for the 2018 Mazda Mazda6 aren't available yet.