2004 Mazda MAZDA6: headlights failing or too dim

5 of the 160 complaints about the 2004 Mazda MAZDA6 describe headlights failing or too dim.

owner complaints: 5
of this car's complaints: 3%
recalls: 0

Is there a fix? 10 service bulletins cover this area of the car. See below

Headlights failing or too dim by model year

2018
1
2017
1
2016
2
2014
2
2013
4
2012
29
2011
14
2010
19
2009
15
2008
1
2007
3
2006
8
2005
8
2004
5
2002
1

What owners say

Filed Apr 20, 2023 · Lights · 165,000 miles · TN

The contact owns a 2004 Mazda Mazda6. The contact stated that while operating the vehicle, the driver’s and passenger’s side headlights were inoperable and failed to illuminate as needed. The contact replaced the bulbs, but the failure persisted. The vehicle was taken to the local mechanic who diagnosed that the electrical wires had shorted out due defective wire coating. The mechanic attempted to fix the failure by covering the electrical wires, but the failure persisted. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 165,000.

Filed Aug 1, 2012 · Acceleration, Electrical · 162,440 miles · TX · fire

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. I put a new battery in my vehicle and as I installed the new battery I unplugged it to see if my alternator would kick in to make sure it was working correctly and as I put the battery back on a shortage happens and my wipers came on at full speed and all my lights were blinking on my dash and a smell of electrical wires burning started to happen and the entire electrical system has messed up. Turn signal lights don't work,headlights, bose stereo,hazard lights,reverse lights truck don't open windows don't go up or down and while I drive the speedometer does not track the velocity the needle goes crazy and my e-brake light is on and track control light is blinking and the air bag lights come on all the time . I do not know where to start to fix this issue but I'm really disappointed in this because I just have 8 months with my vehicle from a dealer ship and they checked out car just fine. This is going to be a super high cost to repair all the damages. Just from a change of a battery. And to top it all thank god I wasn't in the car because their was a small fire in the wires but it went away quick.

Filed Sep 19, 2008 · Lights · AZ

Headlights do not illuminate well on our 2004 mazda 6 . They have already been replaced and looked at by the dealer twice and the problem still persists. The lights are so dim that it is seriously hard to see at night, so we can only drive this car in the daylight. We are afraid to run over something or someone, or get pulled over because of this issue, and we are afraid this may cause a car crash as well. Unfortunately, there is just not anything that will fix it. The auto dealer doesn't even want to deal with this anymore and have rejected our warranty. They said that the car has been tampered with or altered and so have declined to recognize the warranty on it. However, we know there has not been any tampering nor altering! The car is the way it came. This may very well be a manufacture defect that mazda doesn't want to deal with.

Filed Nov 30, 2007 · Lights · 40,000 miles · SC

Tl*the contact owns a 2004 mazda 6. The headlight bulbs failed simultaneously. The dealer replaced the bulbs four times, but the failure was not corrected. The contact replaced the bulbs with aftermarket bulbs. The replacement worked temporarily. The dealer stated that a diagnostic would cost $80 because the vehicle was out of warranty and the failure could be due to the aftermarket bulbs. The current mileage was 102,000 and failure mileage was 40,000.

Filed Jan 23, 2007 · Lights · 55,150 miles · CT

I have been having trouble with the headlights and fog lights on my 2004 mazda 6s. I have had to replace the bulbs twice in the last 1.5 months, by a dealership. They are burning out, but not the brights. The dealership, central mazda, in plainfield, ct, had put the vehicle through a series of electrical tests this morning and can't seem to locate the problem. The dealership has only charged me for the first replacement, but I am not sure this will continue to be a free service. I have no other complaints at all about the car. I bought it new.