AutoUtility currently tracks 55 official NHTSA owner defect complaints for the 2021 Ford Mustang. Fuel & Propulsion System issues are the most frequently reported category, appearing in 15 complaints (27.3% of submitted records). Among these NHTSA complaint records, 4 filings cite a crash, 2 report one or more injuries.
Factual proportion of owner complaints categorized by automotive subsystem in NHTSA records
15 owner complaints submitted to NHTSA ODI for this subsystem.
9 owner complaints submitted to NHTSA ODI for this subsystem.
7 owner complaints submitted to NHTSA ODI for this subsystem.
6 owner complaints submitted to NHTSA ODI for this subsystem.
Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis
3 complaint narratives describe this symptom.
Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation
"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..."
"Driver door opened to secondary latch position while driving on the highway at 70mph on 5/16/2026. The warning system came on and driver had to navigate holding the door and stopping safely during high speed traffic to close the door. Will take to dealership when next available opening day. No..."
"The backup camera goes blank and says to contact Ford"
"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..."
"The contact owns a 2021 Ford Mustang. The contact stated that while driving at various speeds, the vehicle started losing automotive power. The vehicle had stalled several times. The vehicle was able to restart, and the loss of automotive power was intermittent. The contact received notification of..."
Reported defect complaint volume across sibling model years (2015–2026)
| Model Year | NHTSA Complaints | Crash Reports | Safety Recalls | Detailed Report |
|---|---|---|---|---|
| 2015 Ford Mustang | 436 | 26 | 11 | View 2015 Problems → |
| 2016 Ford Mustang | 373 | 13 | 5 | View 2016 Problems → |
| 2017 Ford Mustang | 264 | 14 | 6 | View 2017 Problems → |
| 2018 Ford Mustang | 187 | 8 | 4 | View 2018 Problems → |
| 2019 Ford Mustang | 146 | 3 | 6 | View 2019 Problems → |
| 2020 Ford Mustang | 118 | 13 | 8 | View 2020 Problems → |
| 2021 Ford Mustang Current Page | 55 | 4 | 6 | Current |
| 2022 Ford Mustang | 49 | 3 | 9 | View 2022 Problems → |
| 2023 Ford Mustang | 15 | 5 | 6 | View 2023 Problems → |
| 2024 Ford Mustang | 73 | 5 | 11 | View 2024 Problems → |
| 2025 Ford Mustang | 14 | 1 | 5 | View 2025 Problems → |
| 2026 Ford Mustang | 0 | 0 | 3 | View 2026 Problems → |
Complete distribution of consumer defect reports across all 26 granular NHTSA system and subsystem classifications
| Vehicle Component / System | Total Complaints | Crash Reports | Fire Reports | Injury Entries | Fatality Entries |
|---|---|---|---|---|---|
| Fuel System NHTSA category: FUEL SYSTEM, GASOLINE | 9 | 0 | 0 | 0 | 0 |
| Powertrain NHTSA category: POWER TRAIN | 7 | 0 | 0 | 0 | 0 |
| Back Over Prevention / Camera NHTSA category: BACK OVER PREVENTION | 3 | 0 | 0 | 0 | 0 |
| Electrical System NHTSA category: ELECTRICAL SYSTEM | 3 | 0 | 0 | 0 | 0 |
| Engine NHTSA category: ENGINE | 3 | 0 | 0 | 0 | 0 |
| Service Brakes NHTSA category: SERVICE BRAKES, HYDRAULIC | 3 | 1 | 0 | 0 | 0 |
| Other / Uncategorized NHTSA category: UNKNOWN OR OTHER | 3 | 1 | 0 | 0 | 0 |
| Air Bags NHTSA category: AIR BAGS | 2 | 0 | 0 | 0 | 0 |
| ENGINE,FUEL/PROPULSION SYSTEM | 2 | 0 | 0 | 0 | 0 |
| Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM | 2 | 0 | 0 | 0 | 0 |
| Suspension NHTSA category: SUSPENSION | 2 | 0 | 0 | 0 | 0 |
| Visibility / Glass NHTSA category: VISIBILITY | 2 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM | 1 | 0 | 0 | 0 | 0 |
| ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| Engine & Cooling NHTSA category: ENGINE AND ENGINE COOLING | 1 | 0 | 0 | 0 | 0 |
| ENGINE AND ENGINE COOLING,POWER TRAIN,ELECTRICAL SYSTEM | 1 | 1 | 0 | 1 | 0 |
| Forward Collision Avoidance NHTSA category: FORWARD COLLISION AVOIDANCE | 1 | 0 | 0 | 0 | 0 |
| FUEL SYSTEM, GASOLINE,ENGINE | 1 | 0 | 0 | 0 | 0 |
| POWER TRAIN,ENGINE | 1 | 0 | 0 | 0 | 0 |
| Seat Belts NHTSA category: SEAT BELTS | 1 | 0 | 0 | 0 | 0 |
| Service Brakes NHTSA category: SERVICE BRAKES | 1 | 0 | 0 | 0 | 0 |
| Steering NHTSA category: STEERING | 1 | 1 | 0 | 1 | 0 |
| Structure & Body NHTSA category: STRUCTURE | 1 | 0 | 0 | 0 | 0 |
| SUSPENSION,ENGINE | 1 | 0 | 0 | 0 | 0 |
| UNKNOWN OR OTHER,BACK OVER PREVENTION | 1 | 0 | 0 | 0 | 0 |
| Wheels & Hubs NHTSA category: WHEELS | 1 | 0 | 0 | 0 | 0 |
Cross-reference safety recalls, crash test safety ratings, and EPA fuel economy for this model year
Key performance indicators, EPA fuel economy specs, powertrain variants, and summary ratings.
Official recall campaigns, safety defect descriptions, and manufacturer free remedy instructions.
NHTSA 5-Star NCAP crash test results, driver assistance systems, and rollover resistance ratings.
EPA fuel economy ratings, electric range, and annual energy cost benchmarks.
Direct, deterministic answers synthesized from verified United States government databases for the 2021 Ford Mustang
In official NHTSA consumer records, the most frequently cited issue area for the 2021 Ford Mustang is Fuel & Propulsion System, appearing in 15 records (27.3% of submitted filings).
Secondary reported categories include Powertrain & Transmission (9) and Engine & Cooling (7).
AutoUtility does not issue subjective reliability scores or commercial ratings. In official United States government records, NHTSA tracks 55 consumer defect complaints and 6 safety recall campaigns for the 2021 Ford Mustang.
Reviewing documented component complaint distributions, recall remedy notices, and active federal investigations provides an objective, evidence-based view of the vehicle's historical safety and defect record.
Among consumer complaint records on file with NHTSA for the 2021 Ford Mustang, 4 filings cite a crash, 0 cite smoke or fire, and 2 report one or more injuries.
Incident entries represent consumer descriptions at the time of submission to federal authorities and do not establish mechanical causation or legal liability.
The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database under 49 CFR Part 576.
Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.