2021 Mazda Mazda6 Reliability Data: Problems & Recalls
Best The 2021 Mazda Mazda6 has a complaint index of 13, the second-lowest of the 17 model years with data, and ranks Best. NHTSA lists 17 complaints and zero recalls, crashes, fires, injuries, or deaths for this year.
Based on NHTSA complaints per model-year, not a reliability rating. Methodology
YearToAvoid Scorecard
- Complaint Index
- 13/100
- #15 of 17 Mazda6 years
- Verdict
- Best
- vs. other years of this model
- Complaints
- 17
- unique NHTSA reports
- Recalls
- 0
- distinct NHTSA campaigns
- Crashes
- 0
- reported in complaints
- Fires
- 0
- Injuries
- 0
- Top issue
- Engine
- NHTSA overall rating
- 5 / 5 ★
- EPA combined MPG
- 27.5
- 24.5 city / 33 hwy
- Injuries / deaths
- 0 / 0
Top 2021 Mazda Mazda6 problems
Share of this year’s NHTSA complaints by component group. Groups with 15+ complaints have their own page.
- Engine13 (76%)
- Other2 (12%)
- Visibility & Wipers2 (12%)
- Collision Avoidance & Cameras1 (6%)
- Fuel System1 (6%)
A complaint can list more than one component, so shares add up to more than 100%. Shares are % of complaints.
What owners report
- Owners report the check-oil or low-oil-pressure light coming on prematurely, in some cases as early as roughly 3,500 miles.
- Some drivers describe ongoing oil consumption between scheduled oil changes, with one owner adding a quart after a low-level warning at low mileage.
- One owner reported the sunroof glass shattering while driving at highway speed with no apparent impact.
- Another owner said the OEM windshield caused visual distortion, making straight lines appear rippled and objects seem the wrong size or distance.
- One complaint described the rearview camera freezing on a frozen image unrelated to current driving conditions, which the dealership could not resolve after two visits.
2021 Mazda Mazda6 recalls
No safety recalls on record for this model year.
2021 Mazda Mazda6 fuel economy and fuel cost
- City
- 24.5 MPG
- Highway
- 33 MPG
- Combined
- 27.5 MPG
- Annual fuel cost (EPA)
- $2,375
- 15,000 mi/yr
- Fuel
- Regular
- Current regular gas
- $4.32/gal
- national avg.
EPA figures; median across configurations of this model year. Estimate your own cost with the fuel cost calculator.
2021 compared with other Mazda6 years
Frequently asked questions
- Is the 2021 Mazda Mazda6 reliable?
- Among the 17 Mazda6 model years with NHTSA data, 2021 has a complaint index of 13, the second-lowest of all years, and carries a Best verdict relative to other Mazda6 years.
- What problems does the 2021 Mazda Mazda6 have?
- NHTSA lists 17 complaints for 2021, with 76% tied to the Engine, mostly involving oil consumption and low-oil warning lights. Smaller numbers of complaints cover visibility/wipers, a collision-avoidance camera, and the fuel system.
- Does the 2021 Mazda Mazda6 have any recalls?
- NHTSA shows zero recalls for the 2021 Mazda6, including zero do-not-drive recalls.
- How does the 2021 Mazda6 compare to other Mazda6 years?
- The 2021 model ranks 15th out of 17 years for complaint volume (worst-first ranking), meaning only one or two years have fewer reported problems, making it one of the better Mazda6 years to consider.
- What is the fuel economy of the 2021 Mazda6?
- EPA rates the 2021 Mazda6 at 27.5 mpg combined (24.5 city / 33 highway), with an estimated annual fuel cost of $2,375.