There are 11 owner-reported electrical system complaints for the 2003 Ford Mustangin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Burning of terminal on brake light switch wiring. Brake lights left on.
Date of incident....sometime over night 1/27/24. Vehicle FIRE I believe started in electrical components. Happened overnight while PARKED in front of home in parking lot Melted left side of dash (all odometer area) and center console where AC controls and radio are. Shattered front windshield which was black with soot, as well as the plastic frame around front area of convertible top. Fire has somehow extinguished itself. Whole interior car full of soot. I had actually used my key FOB to enter my car at which time I noticed what had happened & all the damage. I immediately disconnected my battery. The engine did not look damaged. The fire seemed to have stayed behind firewall. My insurance company TOTALED my car out due to the fact of it being an ELECTRICAL CAUSE TO FIRE & even if it could've been repaired, was told parts (dash, odometer area which was COMPLETELY melted) were obsolete. Regardless, the car now has posed a serious DANGER. I have photos & totaled decision by insurance company information, but have been unable to upload on your site. I believe you should REALLY SEE THE PICTURES. After incident, I searched to see if there had been any recalls. I found a couple incidents of this happening to others with their 2003 MUSTANGS & am wondering why this had never been investigated. If I had known about a problem of electrical fires, this car would NOT have been purchased in 2017. I don't understand why this problem wasn't researched. It could've been so much worse as I had a FULL TANK OF GAS.
Flooded salvage title not listed
I WAS DRIVING ON THE FREEWAY AT 65 MPH. ALL OF A SUDDEN THE CAR JUST STOPPED RUNNING. ALL DASH BOARD LIGHTS CAME ON INCLUDING CHECK ENGINE AND THEFT LIGHT WAS BLINKING. LUCKILY TRAFFIC WAS LIGHT DURING THE TIME I WAS DRIVING. I ENDED UP GETTING PUSHED OFF THE FREEWAY BY THE CHP. I HAD TO TOW THE CAR TO THE DEALER, AND THE SERVICE ADVISOR STATED TO ME, THAT A WIRING HARNESS THAT WAS MOUNTED ABOVE THE CAT CONVERTER, AND THE WIRE SHORTED OUT. WHATEVER WAS HOLDING THE WIRE IN PLACE MUST HAVE CAME OFF, AND THAT OVER TIME THE WIRE SHORTED OUT BECAUSE THE WIRE HARNESS WAS RESTING ON THE VERY HOT SURFACE OF THE CAT CONVERTER. THE DEALER TOOK PICTURES, AND I COULD NOT BELIEVE THAT THEY PUT SUCH A VITAL WIRE HARNESS DIRECTLY ABOVE SOMETHING THAT GETS EXTREMELY HOT. I WAS LUCKY, BUT SOMEONE ELSE MY NOT BE SO LUCKY. NO WARNING LIGHTS AND A CAR JUST SHUTS COMPLETELY DOWN WHILE DRIVING. I HOPE YOU WILL LOOK INTO THIS ISSUE AND NOT JUST THE YEAR AND MODEL OF MY CAR. THIS MUST BE RECALLED BEFORE SOMEONE GETS HURT OR KILLED. *TR
BRAKE PEDAL SWITCH HARNESS CONNECTOR DEFORMED RESULTING IN INOPERATIVE BRAKE LIGHTS. WIRES NO LONGER FIT WITHIN PLASTIC CONNECTOR. *TR
2003 FORD MUSTANG CAUGHT FIRE. CONSUMER STATES THAT HER STEPDAUGHTER'S MUSTANG CAUGHT FIRE WHILE PARKED IN A PARKING LOT. FIRE DEPARTMENT STATED THE FIRE WAS CAUSED BY SOMETHING ELECTRICAL IN THE MOTOR WALL. *KB
CAR OCCASIONALLY AND RANDOMLY STALLS WHEN SLOWING TO STOP OR MAKE A TURN AFTER CLUTCH IS DEPRESSED. *NM
I PULLED OUT OF THE BANK PARKING LOT AND WHILE ACCELERATING GENTLY I HEARD A LOUD "POP" NOISE FROM THE ENGINE. THE CAR THEN BEGAN TO RUN VERY BADLY AND THERE WAS A POPPING NOISE FROM THE ENGINE. I PULLED OVER AND INSPECTED THE ENGINE TO FIND THAT ONE OF MY SPARK PLUGS HAD BEEN FORCEFULLY EJECTED. I CONTINUED HOME WHERE I REMOVED THE PLUG TO FIND THAT THE PLUG THREADS INSIDE THE CYLINDER HEAD HAD ALL BE DAMAGED AND WOULD NEED FIXED. I FIXED THE PROBLEM MYSELF AS I WAS INFORMED BY THE LOCAL FORD DEALERSHIP THAT THIS WOULD NOT BE COVERED UNDER WARRANTY AND WOULD COST NEARLY $1,000 TO REPLACE. AFTER DOING SOME RESEARCH I FOUND THAT THIS IS A COMMON PROBLEM WITH THE CERTAIN CYLINDER HEADS DATING BACK TO 1997 AND YET NOTHING HAS BEEN DONE TO RESOLVE THIS ISSUE. *NM
VEHICLE SHUTS OFF WHILE DOWNSHIFTING. CAUSED LOSS OF POWER STEERING AND BRAKES WHILE DRIVING AT HIGHWAY SPEEDS.*AK
CONSUMER CALLED COMPLAINING ABOUT HAVING PROBLEMS WITH THE IGNITION. DEALER WAS CONTACTED, AND STATED THAT THERE WAS NOTHING WRONG WITH IT.*AK
WHILE DRIVING SMOKE CAME OUT OF THE AIR VENTS. THEN, REAR SEATS CAUGHT ON FIRE. THIS WAS CAUSED BY POORLY DESIGNED SPEAKER WIRES. *AK
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