Is the 2021 Mazda MAZDA6 reliable?

The 2021 Mazda MAZDA6 has 19 complaints filed with NHTSA (0.2x the segment average). Our reliability verdict: excellent. Most common issue: ENGINE problems.

What are common problems with the 2021 Mazda MAZDA6?

Top problems: ENGINE (13 complaints, avg repair $500); VISIBILITY (2 complaints, avg repair $500); OTHER (2 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2021 Mazda MAZDA6?

No recalls have been issued for the 2021 Mazda MAZDA6.

How much does it cost to insure a 2021 Mazda MAZDA6?

Estimated US average full-coverage insurance for the 2021 Mazda MAZDA6 is approximately $1,586/year (sedan-midsize class). Actual quotes vary heavily by state, driver age, driving record, and credit — see the interactive insurance estimator on this page for state-specific pricing.

2021 Mazda MAZDA6

Problems, Recalls & Reliability Report

Excellent Reliability

Quick Summary

The 2021 Mazda MAZDA6 has 19 owner complaints filed with NHTSA — that's 0.2x the segment average of 78. The most common issue is engine problems (68% of all complaints), specifically: 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..

Total Complaints

Recalls Issued

5/5

Safety Stars

0.2x

vs Segment Avg

Known Problems(top 5 of 5)

ENGINE

13 complaints

68%

• 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.
• 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.
• 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 th

Typical onset: 50K miles Est. repair: $500

“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.”

— NHTSA complaint filing

Estimated Insurance Cost for 2021 Mazda MAZDA6

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.

Your state (affects local premium average)

Full coverage / year

$1,586

Full coverage / month

$132

Liability only / year

$574

vs US avg

-5%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (sedan-midsize)0.96x

× theft risk1.00x

× safety rating0.94x

× vehicle age1.05x

= Full coverage estimate$1586

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Mazda MAZDA6 Service Intervals

Oil change

8K mi / 12 mo

Tire rotation

8K mi

Brake fluid

24 months

Transmission fluid

60K mi

Engine coolant

120K mi

Spark plugs

60K mi

Cabin air filter

15K mi

Engine air filter

30K mi

Differential (AWD/4WD)

60K mi

SkyActiv-G naturally aspirated engines. AWD models need transfer case and rear differential service every 60K.

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Mazda New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)

3 yr / 36K mi

Powertrain

5 yr / 60K mi

Hybrid/EV battery

8 yr / 100K mi

Corrosion (rust perforation)

5 yr / unlimited mi

Roadside assistance

3 yr / 36K mi

These are the terms for a new Mazda. If you're buying a used 2021 MAZDA6, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Mazda dealer for VIN-specific remaining warranty.

Estimated Repair Costs

ENGINE(~50K mi)

$500

VISIBILITY(~50K mi)

$500

OTHER(~50K mi)

$500

FUEL SYSTEM(~50K mi)

$500

DRIVER ASSIST/CAMERAS(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 19 owner complaints for this specific year, here's what to check or ask about:

☐
ENGINE: 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.
Typically appears around 50K miles. Repair cost ~$500
☐
VISIBILITY: 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 we
Typically appears around 50K miles. Repair cost ~$500
☐
OTHER: 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
Typically appears around 50K miles. Repair cost ~$500
☐
FUEL SYSTEM: 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.
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)