Which parts fail
Components named in complaints (battery, alternator, wiring, ignition, instrument cluster, infotainment).
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 received notification of NHTSA Campaign Number: 22V082000 (Back Over Prevention). The vehicle was dropped off at the dealer for service and remained at the dealer for two days. The contact was then informed that the mechanic in charge of servicing the recall was out sick; the dealer was uncertain if the recall repair had been serviced prior to the mechanic's absence. The contact chose to take possession of the vehicle, and the recall was removed from the vehicle. Recently, the contact stated that the trunk failed to open manually or with the key fob. The contact decided to tie a string to the emergency truck release, which was inserted through the back seat to open the trunk. The vehicle was taken to another dealer, where the contact was informed that the wiring to the trunk and backup camera were all connected. …
The contact owns a 2015 Ford Mustang. The contact received the recall letter related to NHTSA Campaign Number: [redacted] (Back Over Prevention). While reversing, the camera was flickering. The vehicle was taken to the local dealer, where it was diagnosed, and the dealer informed the contact that the camera needed to be replaced. The vehicle was repaired, but the failure recurred. The contact stated that the back-over prevention camera was flickering and became inoperable. The key fob and button were not working to open the trunk. The contact had to climb through the vehicle to enter the trunk. There were no warning lights illuminated. The vehicle was taken to another local dealer, [redacted] ); who confirmed that the repair was not available. The vehicle was not diagnosed or repaired. The manufacturer was contacted and confirmed that the repair was not available. …
The contact owns a 2015 Ford Mustang. The contact stated that the local dealer had previously marked the NHTSA Campaign Number: 22V082000 (Back Over Prevention) recall repair as completed because no failure was found upon inspection of the vehicle. The contact stated that the trunk later failed to open, and the trunk emergency release mechanism was inoperable. The vehicle was taken to another dealer, where it was diagnosed that the deck lid wiring harness had failed, and the failure was related to NHTSA Campaign Number: 22V082000 (Back Over Prevention). The dealer sent a diagnostic report to the manufacturer; however, the manufacturer declined to cover the repair. The manufacturer informed the dealer that another dealer had already marked the recall as complete upon inspection of the vehicle. The vehicle was not repaired. The failure mileage was approximately 15,600.
The contact owns a 2015 Ford Mustang. The contact stated while driving at various speeds and while the vehicle was parked, the windows went up and down, the doors unlocked, the back-over prevention camera engaged, the trunk opened, and the exterior lights engaged independently. Additionally, the check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed that the harness that extended from the rear to the front of the vehicle had failed. The contact stated that the vehicle was previously repaired under NHTSA Campaign Number: 22V082000 (Back Over Prevention) however, the failure persisted. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage approximately 85,000.
The contact's husband owns a 2015 Ford Mustang. The contact while reversing, the rearview camera image was distorted and black. The contact stated that the failure had increased, causing the rearview camera to become inoperable. Additionally, the contact stated that the tailgate had failed to open while using the key fob, while pressing the tailgate release switch inside the cabin and the release button on the decklid. The vehicle was taken to the dealer, where it was diagnosed that the decklid wiring harness needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the vehicle could not be repaired under NHTSA Campaign Number: 22V082000 (Back Over Prevention) because the VIN was not included. The failure mileage was approximately 42,000.
i was driving on a highway and experienced a total failure of my electrical system which completely shut down with in 15 seconds i lost control of the car as i could not even move the wheel, subsequently T-boned by another car iwhich could not stop fast enough suffering total loss of my car of note prior to the accident (Sunday AM) on friday I had a battery replaced @ Firestone, see reciept attached that was the last repair for the care
I am writing to formally request an investigation into a potential recall issue regarding a heated seat module and module plug on my vehicle. Below are the details of my vehicle for your reference: * Make/Model: 2015 Ford Mustang Ecoboost * VIN (Vehicle Identification Number): [redacted] * Mileage: 183,367 I have encountered a burning/melted plastic smell along with smoke coming from my heated/cooled seat module box while operating the vehicle. This issue has impacted safety, and reduced functionality. I have contacted the dealership, and had the part inspected but the issue persists. Upon reviewing similar concerns online and through forums, I noticed other owners reporting comparable problems, starting with many different 2015-2020 ford model vehicles, which leads me to believe this may be a widespread issue. …
A plastic clip ("Brake Pedal Bumper") broke and fell out of place, causing the brake pedal to no longer reach the brake light switch. The brake lights now remain illuminated permanently, even with the brakes released. This also caused the engine and transmission to go into "limp mode", the engine no longer revving over 2,000 RPM, the transmission not shifting, and hill-start assist and traction control no longer working, making the car unsafe to drive. The brake lights will remain on even when the car is completely shut off and locked, draining and damaging the battery. It is my understanding that this is a known issue, and there was a recall for this in certain states. (Safety Recall 22S02, Regional Recall 22R01). …
Third tail light and rear tail lights remained illuminated after the car was turned off. Driver discovered the brake light switch (rubber/plastic piece) had crumbled into the floor board preventing the tail lights from turning off, thus, becoming a hazard to other motorists on the road as the tail lights remained illuminated even while driving. While the vehicle was being driven, the driver could not accelerate to the appropriate speeds as the car was "thinking" the brakes were being applied and could only approximately drive at 40-50 MPH. The vehicle has been inspected and the above information was confirmed as the issue. No other warnings/messages occurred prior to the piece breaking.
While on vacation (my car was at home) a piece in my brakes broke and caused my break lights to be on constantly. When I tried starting my car the battery was dead. The break likes being on like they were ended up causing my battery to corrode by time I got home from the continuous energy drain. I was able to jumpstart my car but when I went to put my car in drive the vehicle would not accelerate over pretty much idling. When I got my car towed to the dealership (Gary Yeoman's) they told me the break bumper disintegrated and caused my break lights to be on and a vehicle acceleration override to be engaged.
Electrical complaints in other Mustang years
Frequently asked questions
How common are electrical problems on the 2015 Ford Mustang?
NHTSA has 67 complaints about the electrical system of the 2015 Ford Mustang, 15% of the model year's 438 complaints. The component named most often is wiring › rear compartment/trunk (1 mentions).
Is there a recall for 2015 Ford Mustang electrical problems?
No. NHTSA lists no electrical system 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 electrical problems start?
Half of the complaints with a recorded mileage happened before about 30,000 miles, and 49% before 25,000 miles.
Is it dangerous?
Owners linked 3 crashes, 2 fires and 2 injuries to electrical system 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.