Total Complaints
740 filings
MERCURY COUGAR · model year
740 NHTSA complaints, 34 crash reports for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1999MERCURYCOUGAR carries 740 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 34 crashes, 3 fires, 38 injuries, and 1 fatality. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 1999 COUGAR is electrical system with 40 filings, followed by visibility:sun/moon roof assembly (33) and power train:automatic transmission (31). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 22 investigation files overlapping the 1999 COUGAR. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
740 filings
Crashes Reported
34 reports
Source
NHTSA ODI
Federal complaints database
Above median complaint volume — review patterns below.
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM | 40 |
| VISIBILITY:SUN/MOON ROOF ASSEMBLY | 33 |
| POWER TRAIN:AUTOMATIC TRANSMISSION | 31 |
| SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS | 31 |
| UNKNOWN OR OTHER | 26 |
| ENGINE AND ENGINE COOLING:ENGINE | 26 |
| VEHICLE SPEED CONTROL | 23 |
| ENGINE AND ENGINE COOLING:ENGINE:GASOLINE | 21 |
| AIR BAGS:FRONTAL | 18 |
| SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC | 17 |
| TIRES | 17 |
| SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP | 16 |
| FUEL SYSTEM, GASOLINE | 16 |
| AIR BAGS | 14 |
| ENGINE AND ENGINE COOLING | 13 |
YES, I PURCHASED MY VEHICLE IN JULY OF 2017. WHEN I TEST DROVE THE VEHICLE, EVERYTHING SEEMED PERFECTLY FINE. YET, THE DAY I RECEIVED IT, I WENT TO THE GAS STATION TO FILL UP. UPON RETURNING HOME, 1 MILE., THE ENGINE LIGHT CAME ON. I WAS TOLD BY THE SELLER ALL WAS PERFECTLY FINE. DRIVE THE CAR, IT WILL BE FINE. I WAS CONCERNED AND I TOOK THE VEHICLE TO MY MECHANIC. AFTER RUNNING SOME DIAGNOSTIC TESTS, I WAS TOLD I NEEDED A CATALYIC CONVERTER, REPAIRS OVER $1500.00. I WAS READING THE RECALLS FOR THIS VEHICLE AND CAME ACROSS CAMPAIGN ID# NHTSA 04V421000. THE RECALL WAS FOR CONTAMINATION OF THE FILTER I THE FUEL DELIVERY MODE(FDM) CAN REDUCE AND EVENTUALLY BLOCK, THE FLOW OF FUEL TO THE ENGINE. IN WHICH, CAN CAUSE MANY PROBLEMS. I HAVE THOSE PROBLEMS WITH THE VEHICLE. UPON STARTING, IT REVIVES UP, THEN EVENTUALLY SLOWS DOWN AND ALMOST KILLS. IT SOUNDS AS IF NO GAS IS GETTING TO THE ENGINE. LOSS OF POWER, STALLING. MY QUESTION IS HOW I COULD FIND OUT IF THIS RECALL WAS DONE TO THE VEH
Mileage: 680,000
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.
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.
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.
TRANSMISSION HAVING PROBLEMS GOING INTO GEAR CONSTANTLY SLIPPING AND CATCHING GEARS WHEN TRYING TO DRIVE ONLY GETS UP TO 30 MPH
Mileage: 150,000
CALIPERS CONSTANTLY FALLS OFF CAUSING WHEEL TO LOCK UP
Mileage: 120,000
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.
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.
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.
TL* THE CONTACT OWNS A 1999 MERCURY COUGAR. WHILE DRIVING APPROXIMATELY 5 MPH APPROACHING A STOP, THE VEHICLE IDLED AND STALLED WITHOUT WARNING. IN ADDITION, THE SPEEDOMETER FLUCTUATED. THE FAILURE RECURRED, ESPECIALLY WHEN THE HEATER WAS ACTIVATED. THE CONTACT WOULD HAVE TO TURN THE IGNITION KEY IN ORDER FOR THE VEHICLE TO TURN BACK ON AND BE ABLE TO BE DRIVEN AGAIN. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 98,000.
Mileage: 98,000
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.
Mileage: 115,000
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.
Mileage: 115,000
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.
Mileage: 191,487
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.
Mileage: 191,487
I HAVE ALWAYS HAD MY CAR WASHED AND RUST PROOFED DURING THE WINTER EVER 2 WEEKS. LAST DECEMBER THE PAINT UNDER THE BOTTOM OF BOTH THE DRIVERS AND PASSENGER DOORS STARTED HAVING THE PAINT BUBBLE UP ON BOTH ROCKER PANELS. IT STARTED BUBBLING UP THEN CURLING AND THE PAIN STARTED COMING OFF. IVE SEEN MANY OTHER COUGARS WITH THIS SAME PROBLEM AND FEEL IT IS DUE TO A DEFECT IN THE PAINT THAT WAS USED OR SOMETHING MISSING FROM THE PAINT JOB THAT WAS DONE
Mileage: 175,000
I HAVE ALWAYS HAD MY CAR WASHED AND RUST PROOFED DURING THE WINTER EVER 2 WEEKS. LAST DECEMBER THE PAINT UNDER THE BOTTOM OF BOTH THE DRIVERS AND PASSENGER DOORS STARTED HAVING THE PAINT BUBBLE UP ON BOTH ROCKER PANELS. IT STARTED BUBBLING UP THEN CURLING AND THE PAIN STARTED COMING OFF. IVE SEEN MANY OTHER COUGARS WITH THIS SAME PROBLEM AND FEEL IT IS DUE TO A DEFECT IN THE PAINT THAT WAS USED OR SOMETHING MISSING FROM THE PAINT JOB THAT WAS DONE
Mileage: 175,000
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
Mileage: 175,000
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
Mileage: 175,000
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
Mileage: 175,000
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.
Mileage: 34,000
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.