AI Damage2003 Ford Mustang GT reliability: common problems
Owners of the 2003 Ford Mustang GT filed 51 complaints with NHTSA, most often about powertrain and engine and cooling. Details by component below, with sources.
Key figures
- Owner complaints
- 51
- involving a crash
- 3
What fails most often
- 1 Powertrain 29% of all complaints
- 2 Engine and cooling 22% of all complaints
- 3 Seat belts 12% of all complaints
- 4 Electrical system 10% of all complaints
- 5 Seats 6% of all complaints
- 6 Fuel system 4% of all complaints
- 7 Steering 4% of all complaints
- 8 Air bags 2% of all complaints
- Powertrain: 15 complaints (29% of all).
- Engine and cooling: 11 complaints (22% of all).
- Seat belts: 6 complaints (12% of all).
- Electrical system: 5 complaints (10% of all).
- Seats: 3 complaints (6% of all).
Symptoms owners describe
How many of the 51 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Powertrain | 15 | 0 | 0 |
| Engine and cooling | 11 | 0 | 0 |
| Seat belts | 6 | 0 | 0 |
| Electrical system | 5 | 0 | 0 |
| Seats | 3 | 0 | 0 |
| Fuel system | 2 | 0 | 0 |
| Steering | 2 | 0 | 0 |
| Air bags | 1 | 0 | 0 |
| Electronic stability control | 1 | 0 | 0 |
| Equipment | 1 | 0 | 0 |
| Parking brake | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Structure | 1 | 0 | 0 |
| Suspension | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
Then I heard a thumping noise and I realized that I had a flat tire. I tapped on my brakes to slow down and get over. I was going the speed limit of 65. Then I heard a loud pop. At that time my car fishtailed and I lost control of the car.
Wheel became loose and swayed from left to right. Consumer loss control of the vehicle, which resulted in an accident. After inspecting the vehicle, consumer noticed the wheel was off the rim.
Takata recall passenger seat belt locked up now drivers side seat belt acting up and hard to retract in and out as well.
Driver side seat belt gets twisted and wont retract and gets shut in door if you don't pay attention, passenger side seat belt is stuck and wont come out or work at all.
Tl contact owns a 2003 ford mustang gt. While driving approximately 35 mph on normal road conditions, suddenly, the front driver seat collapsed in a backward position. The contact was able to continue driving with caution. The contact was able to drive the onto the emergency lane and adjust the seat onto the track.
On cold start, there is a "ticking" sound. Took it to mechanic and he gave me a technical service bulletin article #03-25-6, dated 12/22/03, regarding ford, lincoln and mercury engines built before 9/17/2003.
Interior a/c blower fan(dashboard vents) stops working after in use for 1 hour.
Was turning a corner and there was a pop and after that the engine started to mis-fire. 2) was able to limp the 2 miles to the ford service center. There, they told me that the spark plug had blown out of the engine block and that this happens on occasion.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 5,135 of 32,257 model years in the NHTSA data (top 16% most complained about).
On average one model year of the Mustang GT has 63 complaints (11 years in the data). This year has 51, below average.
What to check before buying
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Seat belts. Belt pretensioners after airbag deployment, SRS codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Other years of this model
Questions and answers
What are the most common problems with the 2003 Ford Mustang GT?
Owner complaints to NHTSA most often mention: powertrain, engine and cooling, seat belts. Total complaints: 51. The most frequent symptoms in complaint texts: knocking, grinding or other noise (18%), seat belts (12%), loss of power / limp mode (10%).
How many service bulletins (TSB) were issued for the 2003 Ford Mustang GT?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2003 Ford Mustang GT from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2003 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.