Problems · NHTSA complaints
2021 Ford Mustang problems
Owners filed 55 complaints about the 2021 Ford Mustang with NHTSA between Nov 2021 and Jun 2026. The most-cited component is fuel system, gasoline (10).
Complaints
55
Filed with NHTSA
Crashes
4
Reported by owners
Fires
0
Reported by owners
Injuries
2
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Fuel system, gasoline10
- Power train9
- Engine8
- Electrical system6
- Fuel/propulsion system5
- Back over prevention4
- Suspension3
- Service brakes, hydraulic3
- Air bags2
- Visibility2
- Service brakes2
- Engine and engine cooling2
- Structure1
- Wheels1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Nov 4, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
1
9
10
6
19
10
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2021 | 1 |
| 2022 | 9 |
| 2023 | 10 |
| 2024 | 6 |
| 2025 | 19 |
| 2026 | 10 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Fuel system, gasoline
10 reports1 related recall
“The contact owns a 2021 Ford Mustang. The contact stated that while driving approximately 65 MPH, the vehicle shuddered while depressing the accelerator pedal. The contact stated that there was a banging sound coming from the vehicle. There was no warning light illuminated while pulling over to the shoulder of the roadway. The contact restarted the vehicle and drove slowly to the destination. The contact then received notification of NHTSA Campaign Number: 25V455000 (Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The local dealer was made aware of the failure and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The vehicle was not repaired. The failure mileage was approximately 2,700.”
Power train
9 reports1 crash
“A steady Check Engine Light came on after starting the car; brought it to Ford Dealer of Montebello and they stated coolant leak and got into one of the cylinders that caused misfires.”
Engine
8 reports
“While entering an on-ramp and just before merging onto the freeway the vehicle failed to accelerate and I lost complete power from the engine. The vehicle was still powered on, but produced no combustion from the engine. The check engine light illuminated and a message appeared on the dash stating to shift the vehicle into neutral. I pulled off on the shoulder and shifted the vehicle into park. I shut the vehicle off and started it back up. After doing so I had full power once again. This is the sixth time this has happened.”
Electrical system
6 reports1 crash2 related recalls
“I RECENTLY PURCHASED THIS CAR. THE REAR BACK-UP CAMERA WAS IN A FLIP FLOPPED STATE. MEANING, WHAT WAS DISPLAYED ON THE CABIN SCREEN ON THE LEFT, WAS ACTUALLY ON THE RIGHT PLUS THE GUIDING LINES ON THE SCREEN WERE MISSING. I PURCHASED AND INSTALLED A NEW CAMERA FROM FORD. THIS FIXED THE FLIP FLOPPED IMMAGE , BUT, NOT THE MISSING LINES ON THE SCREEN. SECURING THE WIRES I NOTICED THE WIRING HARNESS AT THE BEND AT THE DECK AND LID WAS FULLY EXPOSED TO BEING FRAYED BY THE METAL DECK LID. I DID NOT SEE ANY COPPER WIRE SHOWING. BUT, I WONDER HOW LONG IT WILL TAKE TO FRAY TO RAW WIRE? I ALSO OWN A 2015 MUSTANG GT THAT WAS RECALLED FOR THE EXACT SAME CONDITION. THAT WIRING HARNESS WAS REPLACED BY MY LOCAL FORD DEALERSHIP IN 2024.”
Fuel/propulsion system
5 reports
“My vehicle, VIN [XXX], is subject to NHTSA Recall 25V455 (Ford Recall 25S75) involving a defective low-pressure fuel pump that may cause engine hesitation, loss of power, or engine stalling. This recall was announced in July 2025 and remains open on the NHTSA VIN lookup as of June 2026. More than eleven months have passed since the recall was announced, and Ford has not provided a repair remedy for my vehicle. I believe this is an unreasonable delay for a safety-related defect. In addition, the recall previously appeared in the FordPass application associated with my vehicle but no longer appears there, even though both the NHTSA and Ford recall website VIN lookup continues to show the recall as open. This discrepancy creates confusion regarding the status of the recall and whether Ford is actively notifying affected owners. I am concerned that my vehicle remains subject to a known safety defect without an available repair and request that NHTSA review Ford’s handling of Recall 25V455, the prolonged delay in providing a remedy, and the inconsistency between Ford’s customer-facing systems and the NHTSA recall database.”
Back over prevention
4 reports1 related recall
“The contact owns a 2021 Ford Mustang. The contact stated that while reversing, the rear-view camera display glitched and switched between a black and a blue colored screen. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The dealer was made aware of the failure; however, the contact was informed that a diagnostic test was needed. The contact referenced an unknown recall with a similar failure description; however, the VIN was not associated with the VIN. The manufacturer was not made aware of the failure. The failure mileage was approximately 72,500.”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 4, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.