"How reliable is the 2004 Mazda Mazda6?"

"Based on 196 NHTSA complaints, the 2004 Mazda Mazda6 has a median complaint mileage of 63290 miles. The most common issue is AIR BAGS."

"What are common problems with the 2004 Mazda Mazda6?"

"The most frequently reported component in NHTSA complaints for the 2004 Mazda Mazda6 is AIR BAGS, accounting for a significant portion of the 196 total complaints filed."

2004 Mazda Mazda6: Reliability Data

Source: NHTSA — 196 complaints

196

Total Complaints

63,290mi

Median Mileage

AIR BAGS

Top Issue

Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

16,285 25th Percentile

63,290 Median Mileage

114,250 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

AIR BAGS

ELECTRICAL SYSTEM

POWER TRAIN

STRUCTURE:BODY

ENGINE

ENGINE AND ENGINE COOLING

VEHICLE SPEED CONTROL

POWER TRAIN:AUTOMATIC TRANSMISSION

LATCHES/LOCKS/LINKAGES

SERVICE BRAKES, HYDRAULIC

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"ON THE 2004 MAZDA3 AFTER ABOUT 3000 MILES THE MAIN AIRBAG LIGHT ILLUMINATES, INDICATING A FAILURE OF SOME KIND IN THE SRS SYSTEM. THE TESTING SYSTEM RETURNS 2 OR 3 ERROR CODES HAVING TO DO WITH THE FRONT CRASH SENSOR. AND THE AIR BAG WILL NOT DEPLOY, FROM WHAT I CAN GATHER FROM INTERNET MESSAGE BOAR..."

"REAR WINDSHIELD DEFROSTER SYSTEM SHORTED OUT CAUSING THE REAR WINDSHIELD TO SHATTER. THE REAR SEAT WAS OCCUPIED AT THE TIME OF THE INCIDENT. THE REAR WINDSHIELD WAS TINTED, SO THE TINT PREVENTED THE GLASS FROM ENTERING THE CABIN OF THE VEHICLE. THERE WERE NO INJURIES. E DEALERSHIP REPLACED THE WIN..."

"I HAVE A 2004 MAZDA 6S I HAVE HAD TWO INCIDENTS WHERE THE FUEL LINE HAS DETACHED FROM INSIDE THE ENGINE AND THE CAR HAS STALLED AND GASOLINE HAS POURED OUT FROM UNDERNEATH THE CAR. THE FIRST TIME THE DEALERSHIP TOLD ME THAT THERE WAS A RECALL AND I SHOULD RECEIVED IT IN THE MAIL , I LATER FOUND OUT ..."

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

When Were Complaints Filed?

Number of complaints by the year the issue occurred.

When Does Each Component Fail?

Median mileage at complaint for top components.

AIR BAGS 52 complaints

25th: 78,158 mi Median: 110,500 mi 75th: 142,750 mi

ELECTRICAL SYSTEM 11 complaints

25th: 51,978 mi Median: 70,000 mi 75th: 84,000 mi

POWER TRAIN 10 complaints

25th: 51,278 mi Median: 131,500 mi 75th: 139,500 mi

STRUCTURE:BODY 8 complaints

25th: 86,463 mi Median: 95,000 mi 75th: 155,000 mi

ENGINE 7 complaints

25th: 32,500 mi Median: 58,327 mi 75th: 105,413 mi

Where Are Complaints Coming From?

Top states by complaint count.

CA: 17 FL: 16 NY: 10 TX: 9 MA: 8 GA: 8 NC: 8 CT: 7 LA: 7 MI: 7

Who Files Complaints?

19.9%

Original Owners

80.1%

Second+ Owners

Mazda Mazda6 — Other Years

See how this model compares across different model years.

Year	Complaints	Median Mileage	Top Issue	Crashes
2002	40	49,222	POWER TRAIN:AUTOMATIC TRANSMISSION	2
2003	245	24,981	AIR BAGS	14
2005	180	57,500	AIR BAGS	13
2006	207	75,000	AIR BAGS	19
2007	184	77,500	AIR BAGS	18
2008	121	58,500	AIR BAGS	17
2009	526	91,000	STRUCTURE:BODY	9
2010	317	85,000	AIR BAGS	9
2011	182	89,000	SUSPENSION	13
2012	128	73,250	AIR BAGS	7
2013	34	50,000	SERVICE BRAKES	1
2014	195	40,200	ELECTRICAL SYSTEM	23
2015	78	22,000	SERVICE BRAKES	11
2016	107	34,000	UNKNOWN OR OTHER	19
2017	72	23,400	UNKNOWN OR OTHER	1
2018	70	10,500	ENGINE	1

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28