2004 Mazda MAZDA6 Electrical system Problems
- Complaints
- 13about this part
- Share
- 8%of 160 total for the year
- Median mileage
- 55,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 13 complaints about the electrical system of the 2004 Mazda MAZDA6, 8% of the 160 complaints for this model year. Where a mileage was given, the median is 55,000 miles. 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I bought this car for 3,000 from the owner had it for 2 months, got oil and all fluids changed. When I was leaving my house a block away it totally died on me and now it wont start at all. I am very frustrated because I dont have the money to buy abother one. Or even repair it.”
NHTSA complaint #11344097, filed 2020-08, 1 miles“Kept put its self in gear which is a safety mode !!! So I went to change the battery and smelled something burning and the fuse for the radio was blown and every time I went to change the fuse it would blow.so I took it to the shop to see what was wrong and they had to replace the radio some wiring alternator was putting out 17 volts and burned out the wiring!!! This is a common problem with this car and should be covered!!!”
NHTSA complaint #10551746, filed 2013-11, 55,000 miles“My battery on my 2004 Mazda 6 went out and I had to jump start it to.go to work and come from work one day. The next day I took my battery to get checked to see what the issue was and they told me my battery was completely dead and it had only 6 months of usage. …”
NHTSA complaint #10468794, filed 2012-08, 162,440 miles“Bought new 2004 MAZDA6 and already had to replace the alternator also Mazda informed me that starter will need to be replaced soon. Why am I replacing these parts so soon.”
NHTSA complaint #10227813, filed 2008-05, 70,000 miles“I own a 2004 Mazda 6 sports sedan which still has a factory warranty. My wife & I are having electrical issues with the car which is causing a 15 amp fuse to keep blowing. This fuse controls the horn, brake lights, turn signals, & cruise control. We have taken this car to the dealership for the same problem 3 times now & all they seem to do is replace the fuse with a new one & send us on our way with no explanation of why it is blowing. They advise me that they have tested all electrical systems & can't find any problems. …”
NHTSA complaint #10198016, filed 2007-08, 24,688 milesRelated service bulletins
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- 10205994Dec 21, 2021Battery Maintenance: This service bulletin provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged…
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- 10188016Feb 8, 2021This service bulletin provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2019 | 1 | 17% |
| 2018 | 4 | 7% |
| 2017 | 19 | 32% |
| 2016 | 11 | 14% |
| 2015 | 6 | 10% |
| 2014 | 47 | 34% |
| 2013 | 1 | 4% |
| 2012 | 12 | 12% |
| 2011 | 8 | 6% |
| 2010 | 14 | 6% |
| 2009 | 32 | 8% |
| 2008 | 5 | 5% |
| 2007 | 11 | 7% |
| 2006 | 11 | 6% |
| 2005 | 13 | 9% |
| 2004 | 13 | 8% |
| 2003 | 18 | 10% |
| 2002 | 2 | 7% |
Other parts of the 2004 Mazda MAZDA6
55 complaintsTransmission and drivetrain
19 complaintsBody and structure
15 complaintsBrakes
11 complaintsEngine cooling
11 complaintsLatches, locks and linkages
10 complaintsEngine
7 complaintsExterior lighting
7 complaintsVehicle speed control
7 complaintsFuel system
6 complaintsOther or unknown
5 complaintsVisibility (wipers, defrost, mirrors)
5 complaints
← All problems reported for the 2004 Mazda MAZDA6
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology