Total Complaints
11 filings
FORD MUSTANG CONVERTIBLE · model year
1999 FORD MUSTANG CONVERTIBLE
11 NHTSA complaints, 1 crash report for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 1999FORDMUSTANG CONVERTIBLE carries 11 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 1 crash, 0 fires, 0 injuries, and 0 fatalities. 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 MUSTANG CONVERTIBLE is exterior lighting:headlights with 2 filings, followed by seat belts:rear/other (1) and power train:clutch assembly (1). 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 177 investigation files overlapping the 1999 MUSTANG CONVERTIBLE, and 8 remain open. 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.
11
Complaints
1
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
1 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| EXTERIOR LIGHTING:HEADLIGHTS | 2 |
| SEAT BELTS:REAR/OTHER | 1 |
| POWER TRAIN:CLUTCH ASSEMBLY | 1 |
| ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE | 1 |
| PARKING BRAKE | 1 |
| ENGINE AND ENGINE COOLING:ENGINE | 1 |
| POWER TRAIN:DRIVELINE | 1 |
| ENGINE | 1 |
| FUEL/PROPULSION SYSTEM | 1 |
| POWER TRAIN | 1 |
Recent Complaints
20151006ENGINE
INTAKE MANIFOLD CRACK DESTROYING ENGINE. CYLINDER HEAD SPARK PLUG BLOW OUT. HEATER CORE FAILURE. CONVERTIBLE TOP DETERIORATING. FUEL PUMP FAILURE ALL LESS THAN 1200000
Mileage: 100,000
20151006FUEL/PROPULSION SYSTEM
INTAKE MANIFOLD CRACK DESTROYING ENGINE. CYLINDER HEAD SPARK PLUG BLOW OUT. HEATER CORE FAILURE. CONVERTIBLE TOP DETERIORATING. FUEL PUMP FAILURE ALL LESS THAN 1200000
Mileage: 100,000
20151006POWER TRAIN
INTAKE MANIFOLD CRACK DESTROYING ENGINE. CYLINDER HEAD SPARK PLUG BLOW OUT. HEATER CORE FAILURE. CONVERTIBLE TOP DETERIORATING. FUEL PUMP FAILURE ALL LESS THAN 1200000
Mileage: 100,000
20090802POWER TRAIN:DRIVELINE
SWE PURCHASED OUR 1999 FORD MUSTANG GT NEW AND A 25K MILES YHE REAR END DIFFERENTIAL WAS MAKING A LOT OF NOISE. FORD REPLACED THE ENTIRE THIRD MEMBER UNIT AND ALL CARRIER BEARINGS. AT 35K MILES THE ISSUE REOCCUED AND THIS TIME WE TOOK THE CAR TO A DIIFERENTIAL SPECIALIST WHO SAID THE CARRIER BEARINGS ON ONE SIDE WERE COMPLETELY GONE AND REPLACED THEM. THEN AT 45K MILES THE SEME ISSUE DEVELOPED AND WE TOOK IT BACK TO THE DIFFERENTIAL EXPERT. HE COULD NOT UBDERSTAND THE FAILUER AND UPON FURTHER ANALYSIS DETERMINED THE THE DIFFERENTIAL HOUSING WAS BENT AND HIS VIEW WAS THAT IST WAS MANUFACTURED THAT WAY OR IT BENT I=ON THE DELIVERY RIDE TO THE DEALERSHIP. THE DIFF HOUSING WAS PROFESSIONALLY STRAIGTENED AND NOW THE CAR HAS 95K MILES ON IT AND NO FURTHER PROBLEM. WE WROTE FORD ABOUT THIS AND NEVER RECEIEVED A REPLY. *TR
Mileage: 35,000
20080428ENGINE AND ENGINE COOLING:ENGINE
SPARK PLUG BLOW OUT. THERE WAS REALLY NOTHING THAT LED UP TO THIS THAT I KNOW OF. APPARENTLY THIS IS SOMETHING THAT HAPPENS A LOT TO FORD VEHICLES (I HAVE A 99 MUSTANG V8). FORD RECOMMENDED A NEW HEAD ($2000). AN ALTERNATIVE WAS TO RETAPE THE HEAD ($800). *TR
Mileage: 106,500
20061001CrashPARKING BRAKE
I AM THE OWNER OF A 1999 FORD MUSTANG, WITH A MANUAL TRANSMISSION, PURCHASED IN 2004. LAST WEEK, I PARKED MY CAR ON A LOCAL STREET, AT A METER AND WENT INTO CHURCH. WHILE IN CHURCH, THE EMERGENCY BRAKE ON MY CAR FAILED, AND MY CAR ROLLED BACKWARDS, A BLOCK AND A HALF THROUGH AN INTERSECTION AND WAS HIT BY A CITY BUS, BEFORE LANDING AGAINST A TREE. THE POLICE TOWED MY CAR AWAY. SINCE THEN I HAVE PAID TO GET MY CAR FROM THE TOW YARD, TAKEN IT IN FOR AUTO BODY REPAIR AND HAVE HAD TO HAVE THE ENTIRE BACK END REPLACED FROM DAMAGE CAUSED BY THIS FAILURE. THE EMERGENCY BRAKE HAS NOT BEEN REPLACED. *NM
20060822ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
DT*: THE CONTACT STATED WHILE DRIVING 35MPH, THE CHECK ENGINE AND COOLANT LIGHT ILLUMINATED. THE CONTACT PULLED OVER AND AFTER INITIAL INSPECTION DETERMINED COOLANT HAD LEAKED FROM THE INTAKE MANIFOLD. THE VEHICLE WAS DRIVEN TO THE DEALERSHIP WHO DETERMINED THE INTAKE MANIFOLD WAS FRACTURED. THE MANUFACTURER WAS ALERTED.
Mileage: 107,000
20050328POWER TRAIN:CLUTCH ASSEMBLY
VEHICLE IS 1999 FORD MUSTANG, 3.8 LITER ENGINE WITH 5-SPEED MANUAL TRANSMISSION. DEALER REPLACED CLUTCH,THROWOUT BEARING AND PRESSURE PLATE AT APPROX. 2000 MILES FOR ORIGINAL OWNER. DEALER DID SAME WORK FOR MYSELF (2ND OWNER) AT APPROX. 20,000 MILES. CAR NOW HAS 54000 MILES AND CLUTCH WORK IS AGAIN NEEDED. I HAVE OWNED MANY FORDS WITH MANUAL TRANSMISSIONS AND NEVER HAD A CLUTCH LAST LESS THAN 100,000 MILES, SO MY DRIVING STYLE CAN'T BE THE PROBLEM. *JB
Mileage: 54,000
20050121SEAT BELTS:REAR/OTHER
THE REAR PASSENGER SEAT BELTS DO NOT EXTRACT. THIS INCLUDES ALL OF THE REAR SEAT BELTS. THE REAR PASSENGERS ARE UNABLE TO USE THE SEAT BELTS. *NM
Mileage: 108,000
20041109EXTERIOR LIGHTING:HEADLIGHTS
COMPLAINT RECEIVED VIA E-MAIL HEADLAMP LENSES ON MY 1999 MUSTANG V-6 HAVE BECOME SO ETCHED THAT THEY FAIL TO PROPERLY ILLUMINATE FOR NIGHT OPERATION. I HAVE 84,000 MILES ON THE VEHICLE BUT HAVE NEVER HAD A VEHICLE HEADLAMP LENSES THAT DEGRADED IN THIS WAY. *AK
Mileage: 84,000
20031104EXTERIOR LIGHTING:HEADLIGHTS
THE HEADLAMP LENSES ON MY 1999 MUSTANG V-6 HAVE BECOME SO ETCHED THAT THEY FAIL TO PROPERLY ILLUMINATE FOR NIGHT OPERATION. I HAVE 84,000 MILES ON THE VEHICLE, BUT HAVE NEVER HAD A VEHICLE HAVE HEADLAMP LENSES THAT DEGRADED IN THIS WAY.*AK
Compare 1999FORDMUSTANG CONVERTIBLE to Similar Vehicles
NHTSA Investigations 8 Open
EA26001Engineering AnalysisOpen
Unintended Transmission Downshift and Rear Wheel Lock-up
PE25020Preliminary EvaluationOpen
Timing Belt Failure
DP25001Defect PetitionOpen
Underbody shields detachment
PE25007Preliminary EvaluationOpen
B-Pillar Trim Detachment
PE25002Preliminary EvaluationClosed
Unintended Transmission Downshift and Rear Wheel Lock-up
Frequently Asked Questions
How many complaints does the 1999 FORD MUSTANG CONVERTIBLE have?▼
The 1999 FORD MUSTANG CONVERTIBLE has 11 NHTSA complaints, 1 crashes, 0 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 1999 FORD MUSTANG CONVERTIBLE?▼
The most-complained component for the 1999 FORD MUSTANG CONVERTIBLE is EXTERIOR LIGHTING:HEADLIGHTS with 2 complaints. Other frequently reported areas include SEAT BELTS:REAR/OTHER and POWER TRAIN:CLUTCH ASSEMBLY.
Is the 1999 FORD MUSTANG CONVERTIBLE safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
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.