The Used Car Index

2018 Mazda MAZDA6 problems

NHTSA lists 58 complaints for the 2018 Mazda MAZDA6, 1 of them mention a crash and 1 mention a fire. 1 complaints mention an injury, with 1 injuries and 0 deaths reported.

Data build 2026-10-09.

NHTSA lists this vehicle as MAZDA MAZDA6.

At a glance

Complaints
58
With crash
1
With fire
1
With injury (complaints)
1
Injuries
1
Deaths
0
Recalls
2
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
262,220
Investigations
0
Open investigations
0
Manufacturer communications
549

Complaints per 100k sold unavailable. The available sales group does not match this vehicle variant.

Where the complaints are

Top systems
SystemComplaintsShare of this vehicle's complaints
ENGINE3255.2%
POWER TRAIN915.5%
UNKNOWN OR OTHER915.5%
ELECTRICAL SYSTEM46.9%
FUEL/PROPULSION SYSTEM46.9%
SERVICE BRAKES46.9%
FUEL SYSTEM, GASOLINE35.2%
SUSPENSION35.2%
STRUCTURE23.4%
VISIBILITY/WIPER23.4%
Top subsystems
SystemSubsystemComplaints
STRUCTUREBODY2
EQUIPMENTELECTRICAL1
FUEL SYSTEM, GASOLINEDELIVERY1

One complaint can name several systems, so shares can add to more than 100 percent.

Model-generated complaint tags

These labels are model-generated, not NHTSA data.

Failure modes
LabelCountShare of taggedMean confidence
mechanical failure2034.5%0.79
fluid or fuel leak1119.0%0.90
loss of control813.8%0.82
electrical electronic58.6%0.80
structural or corrosion46.9%0.84
fire or overheating35.2%0.77
noise or comfort23.4%0.74
restraint or airbag23.4%0.83
unclear23.4%0.95
visibility or lighting11.7%0.96
Severities
LabelCountShare of taggedMean confidence
moderate3458.6%0.77
low2136.2%0.75
high35.2%0.85

Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 58 tagged complaints of 58 complaints (100.0%).

Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.

Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.

Recalls

See new recalls and investigations this week.

2 recalls.

21V875000

Date: 2021-11-12. Systems: FUEL SYSTEM, GASOLINE.

Defect: 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.

Consequence: 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.

Do not drive: No. Park outside: No.

19V497000

Date: 2019-06-27. Systems: ENGINE, POWER TRAIN.

Defect: 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.

Consequence: 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.

Do not drive: No. Park outside: No.

Investigations

0 investigations; 0 open.

Manufacturer communications

549 manufacturer communications.

Communications by system
SystemCount
EQUIPMENT160
ELECTRICAL SYSTEM144
ENGINE AND ENGINE COOLING97
ENGINE74
POWER TRAIN45
UNKNOWN OR OTHER43
EQUIPMENT ADAPTIVE/MOBILITY38
STRUCTURE25

11037899

Date: 2026-09-11. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.

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

11034447

Date: 2026-06-19. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, ENGINE.

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

11032003

Date: 2026-05-01. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 01-008/23 06/05/23 Some vehicles may exhibit rattling noises from the engine compartment and oil leakage from the drive belt auto tensioner. This may be caused by insufficient sealing at the driv

11032104

Date: 2026-04-30. Type: Service Bulletin/Repair Instructions. Systems: STRUCTURE, UNKNOWN OR OTHER.

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

11032103

Date: 2026-04-21. Type: Service Bulletin/Repair Instructions. Systems: ENGINE, POWER TRAIN, SERVICE BRAKES, UNKNOWN OR OTHER.

This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the sch

11032101

Date: 2026-04-16. Type: Service Bulletin/Repair Instructions. Systems: ENGINE.

This Service Alert supersedes the previously issued M-Tip(s) listed below. The changes are noted in Red text. MT-002/19 09/30/19 and 12/19/19 DESCRIPTION If an engine assembly is replaced after a catastrophic internal mechanical failure, clean the intake manifold internally before installing a repla

11032100

Date: 2026-04-04. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM, STRUCTURE.

This Service Alert supersedes the previously issued SAs and bulletin(s) listed below: The changes are noted below in red. SA-010/23 02/09/23 DESCRIPTION Some customers may experience one or more electrical malfunctions after a vehicle body repair. A newly painted fender stay (2) may be causing a poo

11030636

Date: 2026-03-11. Type: Service Bulletin/Repair Instructions. Systems: ENGINE.

This Service Alert supersedes the previously issued SA(s) and TSB(s) listed below: The changes are noted in Red. SA-035/24 05/31/24 DESCRIPTION There is a concern that some water pumps are being replaced that are not faulty, due to signs of a very small coolant leak from the bleed hole. This Service

11030700

Date: 2026-03-05. Type: Warranty Program/Extension. Systems: ENGINE.

Subject: TSB 01-001/26 Warranty and Parts Kit Update INCLUDES: Warranty Extension Program - Special Service Program (SSP) D8 Check Engine Light ON with DTC P0126:00, 2018-2025 CX-5, 2019-2023 Mazda3, 2019-2022 CX-3, 2018-2021 Mazda6, 2020-2023 CX-30 Dear Mazda Dealer Colleagues, Mazda Motor Corpora

11030701

Date: 2026-03-05. Type: Warranty Program/Extension. Systems: ENGINE.

Subject: TSB 01-001/26 Warranty and Parts Kit Update INCLUDES: Warranty Extension Program - Special Service Program (SSP) D8 Check Engine Light ON with DTC P0126:00, 2018-2025 CX-5, 2019-2023 Mazda3, 2019-2022 CX-3, 2018-2021 Mazda6, 2020-2023 CX-30 Dear Mazda Dealer Colleagues, Mazda Motor Corpora

Notes on this record

  • Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
  • System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
  • Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
  • A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.

Other names NHTSA uses

None listed.

Matched NHTSA models

Matched labels and complaints
NHTSA model labelComplaints
MAZDA658

Same model, other years

All model years | All Mazda models

Other Mazda models, 2018

Sources

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