6th generation (S550) · S550 · 2,205 complaints, 1,090 with mileage
Owners filed 2,205 complaints with NHTSA about the 2015–2023 Ford Mustang, and 1,090 of them record the mileage at which the failure happened. That is enough to show not just what fails, but when.
Failures are spread across the mileage range, with the middle half between 9,046 and 58,000 miles. The median is 31,000 miles.
The most-reported areas are the engine (13.0% of complaints, typically around 26,069 miles), the electrical system (12.6% of complaints, typically around 30,335 miles), problems owners could not categorise (11.6% of complaints, typically around 30,000 miles).
34 recall campaigns cover this generation.
| System | Complaints | Share | Typical mileage | Middle half |
|---|---|---|---|---|
| Engine | 287 | 13.0% | 26,069 | 5,000–61,000 |
| Electrical System | 278 | 12.6% | 30,335 | 12,049–47,000 |
| Unknown Or Other | 256 | 11.6% | 30,000 | 12,000–49,235 |
| Power Train | 202 | 9.2% | 10,000 | 2,171–41,000 |
| Back Over Prevention | 197 | 8.9% | 48,000 | 24,000–76,000 |
| Structure | 149 | 6.8% | 43,500 | 23,000–68,000 |
| Service Brakes | 98 | 4.4% | 10,000 | 2,700–42,000 |
| Latches/Locks/Linkages | 96 | 4.4% | 60,000 | 46,000–85,000 |
| Fuel/Propulsion System | 77 | 3.5% | 34,000 | 6,800–52,000 |
| Steering | 64 | 2.9% | 19,300 | 5,800–46,000 |
| Year | Complaints | With mileage |
|---|---|---|
| 2015 | 597 | 356 |
| 2016 | 495 | 273 |
| 2017 | 342 | 183 |
| 2018 | 236 | 119 |
| 2019 | 187 | 66 |
| 2020 | 179 | 54 |
| 2021 | 67 | 20 |
| 2022 | 74 | 14 |
| 2023 | 28 | 5 |
Complaints about this generation are not spread evenly across the vehicle, and the systems that generate the most of them do not all fail at the same point in a car's life. The median failure across all systems here is 31,000 miles; the figures below show which parts of the car run ahead of that and which run behind.
The engine accounts for 13.0% of complaints (287 reports, 134 of them with a mileage figure), with a median of 26,069 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 5,000 and 61,000 miles.
The electrical system accounts for 12.6% of complaints (278 reports, 135 of them with a mileage figure), with a median of 30,335 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 12,049 and 47,000 miles.
Problems owners could not categorise accounts for 11.6% of complaints (256 reports, 96 of them with a mileage figure), with a median of 30,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 12,000 and 49,235 miles.
The transmission and driveline accounts for 9.2% of complaints (202 reports, 105 of them with a mileage figure), and it fails early — a median of 10,000 miles, well before the vehicle's overall median. Failures clustered this far below the rest of the car usually point to a design or manufacturing problem rather than wear, because wear does not selectively target one system on low-mileage examples. The middle half of these reports falls between 2,171 and 41,000 miles.
The reversing camera and sensors account for 8.9% of complaints (197 reports, 94 of them with a mileage figure), and they fail late — a median of 48,000 miles, considerably beyond the vehicle's overall median. That pattern is consistent with normal service life rather than a defect, though it matters for anyone buying an example already near that mileage. The middle half of these reports falls between 24,000 and 76,000 miles.
Body structure accounts for 6.8% of complaints (149 reports, 73 of them with a mileage figure), with a median of 43,500 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 23,000 and 68,000 miles.
Within this generation, complaint volume is not constant across model years. The 2015 model year drew the most — 597 complaints — while 2023 drew the fewest at 28. The median year sits at 187.
That makes 2015 an outlier: roughly 3.2 times the median year of this generation. A single year standing that far apart usually reflects either a first-year issue that was later corrected, or a component change introduced for that year. Anyone shopping this generation has a straightforward reason to prefer a different year, all else being equal.
NHTSA records 34 recall campaigns covering vehicles in this generation. A recall means the manufacturer or the regulator concluded there was a safety defect or a standard was not met, and that a free remedy is owed to owners — including second and later owners.
The campaigns cluster around the electrical system (6), the reversing camera and sensors (5), the fuel system (3). Repeated recalls against the same area of the car generally mean the first remedy did not fully resolve the underlying problem.
Recall status is specific to the individual vehicle, not the model. Checking a VIN against NHTSA's lookup is free and takes under a minute, and it is the only way to know whether a particular car has had the work done.
Of the 2,205 complaints filed against this generation, 152 reported a crash; 50 reported a fire; 101 reported an injury; 6 reported a fatality. Crash-involved reports represent 6.9% of the total.
These are owner-reported outcomes, not verified investigations, and they are not adjusted for how many of these vehicles are on the road. They are included because the distinction between a fault that strands a car and a fault that causes a collision is the one that matters most, and it is not visible in a complaint count alone.
For a buyer, failures on this generation are spread rather than concentrated: the middle half falls between 9,046 and 58,000 miles, with a median of 31,000. There is no single mileage threshold to watch, which means condition and maintenance records are more informative than the odometer.
On inspection, the engine and the electrical system are where this generation's reports concentrate, so those are the areas worth a specific look. The engine in particular shows a median failure mileage of 26,069, which gives a concrete number to compare against the odometer of any car you are considering.
None of this is a substitute for a pre-purchase inspection on the individual car. Aggregate patterns describe a population; the example in front of you has its own history.
MT82-D4 6-speed manual shift quality complaints (notchiness, grind into 2nd when cold) continue on 2015-2017 cars; Ford revised the unit for 2018.
Gen 3 5.0L Coyote elevated oil consumption and cam phaser rattle on cold start.
5.2L Voodoo flat-plane-crank V8 (GT350) oil consumption and, on early cars, main bearing wear; Ford added an oil cooler and revised specs.
A/C compressor and evaporator failures widely reported on early S550 cars.
| Campaign | Date | Component |
|---|---|---|
| 25V455000 | 2026-07-27 | Fuel System, Gasoline:Delivery:Fuel Pump |
| 26V372000 | 2026-07-13 | Electrical System: Instrument Cluster/Panel |
| 25V572000 | 2026-01-13 | Back Over Prevention: Sensing System: Camera |
| 25V695000 | 2026-01-02 | Back Over Prevention: Sensing System: Camera |
| 25V689000 | 2025-12-11 | Electrical System:Body Control Module/Bcm |
| 25V442000 | 2025-09-04 | Back Over Prevention:Software |
| 25V096000 | 2025-03-25 | Steering:Electric Power Assist System |
| 24V493000 | 2024-10-11 | Steering:Electric Power Assist System |
| 23V727000 | 2023-12-21 | Electrical System:Body Control Module/Bcm |
| 23V070000 | 2023-04-25 | Power Train:Automatic Transmission |
| 22V082000 | 2022-12-23 | Back Over Prevention: Sensing System: Camera |
| 22V382000 | 2022-06-15 | Power Train:Automatic Transmission:Control Module (Tcm/Pcm/Tecm) |
| 22V011000 | 2022-06-13 | Service Brakes, Hydraulic:Pedals And Linkages |
| 22V334000 | 2022-05-27 | Forward Collision Avoidance: Sensing System: Camera |
| 21V980000 | 2022-04-22 | Air Bags:Side/Window:Curtain |
| 22V083000 | 2022-03-08 | Air Bags:Knee Bolster |
| 20V575000 | 2021-02-01 | Back Over Prevention: Sensing System: Camera |
| 20V573000 | 2021-01-26 | Service Brakes |
| 20V331000 | 2020-07-27 | Latches/Locks/Linkages:Doors:Latch |
| 20V306000 | 2020-06-17 | Forward Collision Avoidance: Sensing System: Camera |
| 20V263000 | 2020-05-26 | Electrical System: Instrument Cluster/Panel |
| 19V076000 | 2019-03-08 | Electrical System: Instrument Cluster/Panel |
| 18V213000 | 2018-04-13 | Power Train:Automatic Transmission |
| 17V814000 | 2018-01-31 | Electrical System:Software |
| 17V529000 | 2017-10-11 | Air Bags:Frontal:Passenger Side:Inflator Module |