2021 Mazda Mazda6 problems, complaints & recalls
Most-reported problem areas: Engine (11) · Visibility/Wiper (2) · Fuel/Propulsion System (1)
🧭 Reliability snapshot
Compared against other Mazda Mazda6 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (301)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Electrical System 2026-09-11 · SA-041-26a · Service Bulletin/Repair Instructions
description if you encounter any type of electrical concern (e.g, dead battery, engine no start, dtc(s) stored...), interview the customer before proceeding with normal mgss diagnosis by asking if any aftermarket devices have been installed. aftermarket devices may be the cause of the electrical con
Engine 2026-06-19 · SA-041-26 · Service Bulletin/Repair Instructions
this sa supersedes the previously issued sa(s) listed below. the changes are noted in red. sa-061/25 12/17/25 description if you encounter any type of electrical concern (e.g, dead battery, engine no start, dtc(s) stored...), interview the customer before proceeding with normal mgss diagnosis by ask
Unknown Or Other 2026-06-18 · 09-019-26 · Service Bulletin/Repair Instructions
this bulletin supersedes the previously issued bulletin(s) listed below. the changes are noted in red. 09-012/21 12/13/21, 06/10/21 and 04/27/21 description some customers may experience all of following symptoms: the door lock/unlock operation will not work using the remote transmitter button. 1. t
Electrical System 2026-06-17 · SA-027-26a · Service Bulletin/Repair Instructions
this sa supersedes the previously issued bulletin(s) listed below. the changes are noted below in red. sa-027/26 04/16/26 description the mazda dca-8000 is required for all warranty battery testing. if the mazda dca-8000 is not used, incorrect battery testing may result in unnecessary battery replac
Unknown Or Other 2026-04-30 · SA-031-26 · Service Bulletin/Repair Instructions
description some vehicles may require the replacement of a damaged vin plate or vehicle certification label. to obtain a replacement vin plate (bulkhead-mounted and visible through the lower-left area of the windshield), contact dag (dealer assistance group) using vin plate request form available on
Engine 2026-04-29 · SSPD5 Parts Warr b · Warranty Program/Extension
valve stem seals class action settlement program for excessive oil consumption and oil consumption powertrain warranty extension special service program sspd5. updated april 28, 2026 – related oil part number for warranty claims is now 0000-77-5w30-qt (engine oil) as the 5555 warranty part number ha
Showing the 6 most recent of 301 bulletins. Search all of them free at nhtsa.gov.
What owners report
2025-06-23 · Back Over Prevention: Sensing System: Camera“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…”
2024-07-01 · Unknown Or Other“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. …”
2023-12-17 · Engine“engine oil low warning 2k miles after oil change and again a week after topping oil off.…”
2023-06-25 · Engine“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 perm…”
2023-05-12 · Engine“low oil light comes on. using excessive oil between oil changes. …”
2023-04-24 · Fuel/Propulsion 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. i am aware others have concacted you with this pro…”
2023-02-28 · Engine“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.…”
2022-10-31 · Engine“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 de…”
2022-10-31 · Unknown Or 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 to fix it. this is a new car!!!…”
2022-10-18 · Engine“ 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.…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.