Problems · by component

1999 Mercury Cougar electrical system problems

94 owner complaints to NHTSA about the 1999 Mercury Cougar cite electrical system, 21% of all 454 complaints for this model year. NHTSA also lists 2 recalls on this component.

Complaints
94
21% of all complaints
Crashes
1
Reported by owners
Fires
2
Reported by owners
Injuries
3
Reported by owners
01 —Owner reports

What owners say about the electrical system

Verbatim from NHTSA complaints, newest first
“I GOT IN MY CAR ONE DAY AFTER WORK IN THE PARKING LOT AND STARTED MY CAR AND MY AIRBAG LIGHT WAS ON. IT STAYED ON FOR THREE DAYS AND IS NO LONGER ON. IT SEEMS LIKE NO ONE WANTS TO TAKE ACCOUNT OR PROVIDE SOLUTIONS FOR THE PROBLEM. EVERYTIME I ROLL UP MY WINDOWS, MY LIGHTS DIM AS IF THE BATTERY IS DYING. MY WINDSHIELD WIPER CONTROL DOESN'T SHUT OFF AND IM NOT ABLE TO CHANGE THE SPEED.”
Owner complaint to NHTSAFiled Jan 25, 2017Electrical system, Exterior lighting, Air bagsODI 10947691
“I HAVE PROBLEM WITH TRANSMMITION SHIFTING 1ST TO SECOND CHANGES AT 3000RPM BUT WHEN I CHANGE PARK TO DRIVE SHAKES MOTOR BAD , ONE OF THE WIRES START SMOKING I LIKE I PUT TAPE AROUND WIRED BURND. TEMPERATURE IT DOESN'T SHOW BUT WHEN I OPEN THE HOOD THE CAR IS VERY HOT EVERY TIME I TRIED DRIVING IT AT FREEWAY OVERDRIVE LIGHT STARTS BLINKING I LIKE I PAID TO GET IT FIX AND STILL DOES THE SAME.”
Owner complaint to NHTSAFiled Jun 27, 2016Electrical system, Vehicle speed control, Unknown or otherODI 10877025
“TL* THE CONTACT OWNS A 1999 MERCURY COUGAR. THE CONTACT STATED THAT WHILE DRIVING AT 35 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT ALSO STATED THAT WHILE ATTEMPTING TO START THE VEHICLE, THE VEHICLE FAILED TO START. THE VEHICLE WAS ABLE TO START AFTER SEVERAL ATTEMPTS, HOWEVER THE VEHICLE FAILED AFTER THE CONTACT DROVE FOR A COUPLE OF MILES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE ALTERNATOR AND FUEL PUMP HAD FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 01V031000 (ELECTRICAL SYSTEM) OR 04V421000 (FUEL SYSTEM, GASOLINE). THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 115,000.”
Owner complaint to NHTSAFiled Dec 18, 2015Electrical system, Fuel/propulsion systemODI 10811201
“1999 COUGAR BATTERY CONNECTION PROBLEMS OR SOMETHING FAULTY. SOMETIMES WHILE I'M DRIVING MY CAR JUST GOES DEAD. IT'S DONE THAT A LOT LATELY. I NOW HAVE A NEW BATTERY BUT THE SAME THING HAPPENS AND I'M SCARED WHEN IT HAPPENS ON THE FREEWAY . TONIGHT I WAS DRIVING ON THE FREEWAY AND IT WENT DEAD! I HAD NO LIGHTS , I HAD NO TAIL LIGHTS,NO HEAD LIGHTS ,NO BLINKERS AND NO EMERGENCY LIGHTS AND THE CAR CLOSE BEHIND ME HAD TO SLAM ON BREAKS CAUSE THERE WAS NO EMERGENCY LANE, NO SIDE OF THE ROAD JUST A GUARD RAIL! I WAS IN THE MIDDLE OF THE ROAD . BRAND NEW BATTERY JUST GOES DEAD LIKE IT DID MANY TIMES ON THE OLDER BATTERY IT'S NOT THE ALTERNATOR EITHER...SOMETHING IS NOT MAKING A CONNECTION. I'M GONNA END UP SQUASHED, DEAD CAUSE ON A FREEWAY AT NIGHT WHEN THE CAR DIES EVERYTHING DIES: LIGHTS,TAIL LIGHTS AND EMERGENCY LIGHTS IF IM IN THE DARK NO ONE WOULD SEE ME IN TIME TO STOP IF IM IN THE MIDDLE OF THE ROAD.”
Owner complaint to NHTSAFiled Nov 22, 2015Electrical system, Unknown or otherODI 10795276
“TO WHOM IT MAY CONCERN: (MANAGEMENT) I WAS DRIVING ON A RESIDENTIAL STREET AND WAS HONKED AT BY ANOTHER DRIVER WHO TOLD ME THAT MY BRAKES LIGHTS WERE NOT WORKING. I HAD A FRIEND OF MINE THAT IS A CERTIFIED REPAIR PERSON LOOK AT IT AND HE SAID IT WASN'T THE LIGHT OR THE FUSE OR THE BRAKE SWITCH UNDER THE PEDAL AND THAT HE WAS 95% SURE IT WAS THE STOP LAMP EXTENSION HARNESS THAT HAS BRONZE TERMINALS AT THE BRAKE LAMP SWITCH CONNECTOR. I BOUGHT THIS CAR IN 2004 AND UNDER A RECALL HAD THE BLOWER SWITCH RESISTOR REPAIRED UNDER THE RECALL. THE REASON THE RECALLS FOR THIS CAR ARE NOT SHOWING UP IS BECAUSE THE RECALLS ARE MORE THAN 15 YEARS OLD & THEY DON'T KEEP TRACK AFTER THAT. I HAVE NEVER HAD THIS PROBLEM WITH THIS CAR BEFORE BUT I HAVE HAD OVER $9,000 WORTH OF REPAIRS ON IT SINCE I'VE OWNED IT NOT INCLUDING THE NORMAL OIL CHANGES AND TUNE UP. I THINK FORD NEEDS TO APPROVE THIS FOR THE RECALL CONSIDERING THEY KNEW HOW MANY THINGS WERE WRONG WITH THE COUGARS AND THAT'S WHY THEY DON'T MAKE THEM ANYMORE... NOT A SATISFIED CUSTOMER WITH A FORD PRODUCT! FIRST & LAST FORD PRODUCT I WILL EVER OWN IF THIS ISN'T FIXED TO MY SATISFACTION. THANK-YOU, [XXX] *TR”
Owner complaint to NHTSAFiled Jun 11, 2015Electrical system, Exterior lighting, Service brakesODI 10724828
“TL* THE CONTACT OWNS A 1999 MERCURY COUGAR. THE CONTACT STATED THAT THE VEHICLE STALLED WITHOUT WARNING WHILE DRIVING 25 MPH. THE VEHICLE WAS TOWED TO A LOCAL MECHANIC FOR DIAGNOSTIC TESTING. A FAILURE CODE WAS DISPLAYED THAT IDENTIFIED THE ALTERNATOR AS THE CAUSE OF THE FAILURE. THE ALTERNATOR WAS PREVIOUSLY REPLACED THREE TIMES. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER STATED THAT THEY WERE UNAWARE OF NHTSA CAMPAIGN NUMBER: 01V031000 (ELECTRICAL SYSTEM). THE FAILURE MILEAGE WAS 34,000.”
Owner complaint to NHTSAFiled Aug 13, 2014Electrical systemODI 10621924

Showing 6 of 94 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026NHTSA vehicle page
02 —Related recalls

2 recalls on this component

Electrical system

Free remedy

ON CERTAIN MY 1996-1998 PASSENGER VEHICLES BUILT AT THE KANSAS CITY, CUAUTITLAN ASSEMBLY PLANTS OR ON MY 1999 PASSENGER VEHCLES BUILT AT THE AUTOMOTIVE ALLIANCE INTERNATIONAL ASSEMBLY PLANTS, THE ROUGH SURFACE OF THE HEATER BLOWER RESISTOR'S STAINLESS STEEL BLADES CAN DAMAGE THE COPPER SURFACE OF THE WIRING HARNESS CONNECTOR. THE DAMAGE COULD, OVER TIME, CAUSE INCREASED RESISTANCE IN THE CONNECTOR AND, DUE TO SUBSEQUENT TERMINAL RELAXATION, RESULT IN AN OPEN CIRCUIT CONDITION.

Electrical systemReported Jul 9, 2001NHTSA 01V230000

Electrical system: 12v

Free remedy

VEHICLE DESCRIPTION: PASSENGER VEHICLES EQUIPPED WITH 2.5L V6 ENGINES. THE BATTERY CABLE WAS MISROUTED AND ITS ATTACHMENT TO THE ALTERNATOR CABLE WAS UNDER-TORQUED. IF MISROUTED, THE CABLE COULD CONTACT THE POWER STEERING LINE AND THE INSULATION COULD WEAR, RESULTING IN AN ELECTRICAL SHORT.

Electrical systemReported Feb 6, 2001NHTSA 01V031000
Data from NHTSA Recalls API · synced Nov 9, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.