There are 6 owner-reported lighting complaints for the 2004 Mazda Mazda6in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
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.
SMELL GASOLINE FUMES INSIDE CAR, SMELLS STRONGER WHILE RIDDING IN BACK SEAT. CHECK ENGINE LIGHT STAYS ON ALL MOST ALL THE TIME. GOES OFF ONCE IN A GREAT WHILE FOR 5 TO 10 MIN THEN GOES BACK ON. BEEN HAPPENING SINCE I BOUGHT THE CAR IN 2012. HAD DIAGNOSTIC TEST DONE SAID IT WAS THE O2 SENSOR. REPLACED IT. LIGHT WAS OFF WHEN I PICKED THE CAR UP. DROVE 6 MILES LIGHT CAME BACK ON AGAIN.AND HASN'T WENT OFF SINCE. STILL SMELL FUEL FUMES INSIDE CAR. *TR
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.
TL*THE CONTACT OWNS A 2004 MAZDA 6. THE CONTACT STATED THAT THE EXTERIOR LIGHTING FAILS TO REMAIN ILLUMINATED ON THE VEHICLE. HE HAS CHANGED THE BULBS AT LEAST TEN TIMES, BUT THE FAILURE PERSISTS. HE FEELS THAT THIS IS A SAFETY ISSUE BECAUSE A SERIOUS CRASH COULD OCCUR WITHOUT THE LIGHTS WORKING PROPERLY. THE CONTACT HAS BEEN PULLED OVER BY THE POLICE THREE TIMES FOR DRIVING WITHOUT LIGHTS. THE CURRENT AND FAILURE MILEAGES WERE 118.
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. *JB
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. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026