Which parts fail
Components named in complaints (automatic and manual transmissions, CVT, axles, driveshaft, 4WD/AWD).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2015 Ford Mustang owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2015 Ford Mustang. The contact stated while driving at approximately 45 MPH the vehicle was shifting roughly. The contact stated that no warning light was illuminated. The contact stated that the failure was intermittent but became a recurring failure. The contact stated that the failure occurred at various speeds. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the torque converter needed to be replaced. The vehicle was repaired. The manufacturer was informed of the failure. The contact researched online and related the failure to Technical Service Bulletin Number: 20B27 Torque Converter (Power Train). The failure mileage was approximately 130,000.
The contact owns a 2015 Ford Mustang. The contact stated while driving 50 MPH, the vehicle began to vibrate violently. The contact stated that the failure was intermittent at first but had since occurred while driving 50 MPH or faster. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed failures with the center support bearing and drive shaft assembly. The vehicle was not repaired. After investigating the failure, the contact related it to NHTSA Campaign Number: 17V408000 (Power Train) but the VIN was not included. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was 99,000.
The contact owns a 2015 Ford Mustang. The contact stated that while driving at an undisclosed speed and attempting to accelerate, upon the transmission shifting into 4th gear, the tachometer rose 3,000 RPM, after which the vehicle lost motive power and the transmission was unable to shift above 4th gear. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the clutch. The vehicle was not repaired. The manufacturer was notified of the failure but referred the contact to the NHTSA hotline for assistance. The failure mileage was 10,000.
The contact owns a 2015 Ford Mustang. The contact stated that while driving 35 MPH and attempting to depress the brake pedal, the clutch pedal detached from the brake pedal assembly. Neither an independent mechanic nor a dealer was contacted. The vehicle was not taken to a dealer or independent mechanic to be diagnosed. The vehicle was not repaired; however, the vehicle was in the process of being repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 115,724.
The contact owns a 2015 Ford Mustang. The contact stated that upon attempting to start the vehicle, the vehicle failed to start. The "Depress the clutch to start the vehicle" and check engine warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 101,000.
The welds on the top of the clutch pedal at the pivot point were insufficient from the factory and failed. I was having issues operating the clutch and after doing some research found that this is a common issue and was never covered under any factory warranty. I did not have this inspected at a dealer because I knew it would not be covered. I was able to remove the pedal assembly and repair it and added additional welds myself. I think this is a huge safety concern due to the possibility of the clutch pedal cracking completely and coming loose, which could cause the vehicle to unexpectedly engage the clutch and run someone over or cause a collision. I have photos of the damaged components. It took me a total of 8 hours to complete the repairs. I am also concerned about the quality of the steel used to construct the pedal as it may be too brittle. …
The ac on my mustang has gone out 3 times causing my windshield to fog up and making it very hard to see through. From my understanding Ford already knows about this problem and the defective ac compressor and evap. I have been having problems with the ac since 20 thousand miles. I also have oil leaking onto my driver side floorboard from a bad master slave cylinder. This also started around 20 thousand miles and Ford did not want to warranty it even though the car was still under manufacture warranty. They said that it doesn't fall under power tran warranty which does not make sense. This makes it unsafe to drive when your foot becomes slippery from oil. I also have rust all over my hood that Ford did not want to cover under their 5 year paint warranty. Very disappointed by Ford and the low quality product they knowingly put out.
Related to Regional Recall 22R01, the rubber bumper on my brake pedal that engages the brake light switch failed and placed the vehicle in a low power mode. This failure occurred while merging onto the interstate and almost resulted in my being rear-ended by a semi truck. Having never been notified of this regional recall, I was able to verify this was the case after searching forums and YouTube and identifying the pieces of the broken bumper in my floorboard. I find it to be HORRENDOUSLY unacceptable that this was allowed to be handled as a regional recall and no notice was ever produced, as it is a safety-related issue that could have resulted in grievous bodily harm. I am located in Kentucky, which is not part of the named region.
The 2015 Mustang has been driven about 62,000 miles. The car has not been driven excessively in the 8 + years my wife and I have owned it. I recently heard a noise from the car. I brought the car to a local reputable repair shop. They determined, that there was a problem with the differential. They took the housing case off and found metal shreds in the case. They feel that a bearing failed caused the complete differential failure. I talked to Ford and they have no open recalls for this and recommended contacting the NHTSA. The car is at the repair shop waiting for parts to repair the differential at a cost of approximately $3,000.
The weld that connects the clutch pedal bar to the tube it pivots in broke on my 2015 Mustang. This makes the pedal wobbly and can prevent the clutch from being fully depressed. For months, the clutch was squeaking. Upon inspection, I noticed the weld was broken. I have not been in an accident because of this, however, the clutch pedal is now loose and can at times hit the 'neutral' switch (which measures full depression of the clutch to allow the car to start), which prevents inconsistent depression of the clutch, leading to unsafe operation.
Transmission complaints in other Mustang years
Frequently asked questions
How common are transmission problems on the 2015 Ford Mustang?
NHTSA has 42 complaints about the transmission & drivetrain of the 2015 Ford Mustang, 10% of the model year's 438 complaints. The component named most often is clutch assembly (2 mentions).
Is there a recall for 2015 Ford Mustang transmission problems?
No. NHTSA lists no transmission & drivetrain recall for the 2015 Ford Mustang, though it has 11 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2015 Ford Mustang transmission problems start?
Half of the complaints with a recorded mileage happened before about 12,000 miles, and 62% before 25,000 miles.
Is it dangerous?
Owners linked 1 crash, 1 fire and 0 injuries to transmission & drivetrain problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.