Which parts fail
Components named in complaints (service brakes, ABS, rotors and pads, parking brake).
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 owned a 2015 Ford Mustang. The contact stated that while her son was driving approximately 30 MPH, as he tried to slow while following the road steering to the left, the vehicle's brakes failed. The vehicle left the roadway spun several times and crashed into a tree. The roadway surface was not dry, the contact's son said that the conditions had been misty. The driver's side door was crushed and the entire side panel to the rear wheel was crushed by the impact. The driver's side window, the rear windshield, and the passenger side window were shattered. The contact stated that additionally large branches from the tree had fallen off at impact and damaged the hood and trunk of the vehicle. The driver's side air bag and passenger side air bag, and driver's front air bag had deployed. …
The contact owns a 2015 Ford Mustang, The contact stated while the vehicle was parked in her driveway when the vehicle rolled forward and impacted her second vehicle. The contact stated no one was injured or sought medication. No police report was filed on the incident. The contact took the vehicle to a local dealer and was informed her VIN was associated with NHTSA Campaign Number: 22V011000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The vehicle was not repaired but was pending repairs. The manufacturer had not been informed of the failure. The failure mileage was approximately 116,000.
The contact owns a 2015 Ford Mustang. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 22V011000 (Service Brakes, Hydraulic); however, while driving with the cruise control activated, the brake pedal was depressed but instead the vehicle accelerated and failed to stop as needed. The contact stated that an excessive amount of pressure was needed to depress the brake pedal while stopping the vehicle. The contact stated that the failure only occurred while the cruise control was activated. The contact had taken the vehicle to the dealer and the mechanic was also able to duplicate the failure. The dealer diagnosed that the cruise control had malfunctioned and caused the brakes to not operate as needed to deactivate the cruise control. The dealer replaced the cruise control switch; however, the failure persisted. …
The contact owns a 2015 Ford Mustang. The contact stated that while operating the vehicle in rush hour traffic, the vehicle experienced total brake failure and the brake failure message had displayed. The contact had to use the parking brake to stop the vehicle while in bumper-to-bumper traffic. The contact indicated that the vehicle had been serviced by the local mechanic on multiple occasions for the same failure and the brake master cylinder and brake booster were replaced. The vehicle was also taken to the local dealer who readjusted the brake pads but the failure continued. The contact also indicated that the failure had occurred during very hot temperature days. The local dealer and manufacturer were notified of the failure but no assistance was offered. The failure mileage was 67,000.
The contact owns a 2015 Ford Mustang. The contact stated that the brake pedal bumper fractured, and the brake lights illuminated. The contact stated that the failure caused the battery to become drained. The accelerator pedal was stuck and drained the battery. The contact stated that the failure was related to NHTSA Campaign Number: 22V011000 (Service Brakes, Hydraulic). Additionally, the contact resides in North Carolina but had not transferred the New York vehicle registration. The contact called the local dealer and was referred to the manufacturer for assistance. The vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 76,000.
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 while attempting to drive the vehicle the brake pedal cushion was fractured. The contact stated that the brake light was illuminated. The vehicle was taken to the local dealer and diagnosed with brake pedal failure. The contact stated there was previous recall for the failure and the vehicle was repaired; however, the failure reoccurred. The manufacturer was notified of the failure. The approximate failure mileage was 81,000.
As I was driving on the freeway, out of nowhere my car started losing gas power which almost caused me to get rear ended. Later on that night I almost lost full control of the car when it lost power since I started swerving. through out the night it continued to lose power and then the "hill side assistance" light came on notifying me that it was not available/functioning and my break lights would not turn off at all, even when the car was off and locked. I took it to the dealer and they could not find the problem. Then I took it the a mechanic which he was able to temporarily fix it but it was not a permanent fix. we had to create the part, as the ford company did not have it anywhere. If I would have been on the street I would have lost control and who knows if a pedestrian could have been walking, It could have ended tragic. …
What component or system failed or malfunctioned, and is it available for inspection upon request? The break pedal stop pad broke into small pieces while I was driving today. My car suddenly would not go above 40 and while going up a hill I couldn't go faster than 20. When I finally got home I realized that my break lights would not turn off. I did google and it said to look on the floor board and see if there was anything on the floor. The pieces I found were identified as the break pedal stop pad. Yes it is available for inspection and I took pictures of the broken bits from the floorboard. How was your safety or the safety of others put at risk? My car suddenly was unable to go the speed limit in 6 o'clock traffic putting me as well as those driving behind me in danger of a collision and physical harm. …
I ran into the existing issue described in "Part 573 Safety Recall Report" NHTSA Recall Number 22V-011, but in a state not listed under the recall (vehicle purchased used in Pennsylvania in 2017). As a result of this part failing, my brake lights remained engaged permanently, and the car's engine power would increase and decrease rapidly (presumably because it thought I kept hitting the breaks). At time of writing I still have the broken pieces of the original part. I plan to take the vehicle into service within the week. There are no warning lights when this occurs since everything I'm the car is technically "operating correctly" - it just thinks the breaks are engaged constantly, and so has erratic behavior. The original recall lists high humidity as a cause, which Pennsylvania definitely has. I keep my vehicle outside 24/7, so it has definitely been part of many temperature swings.
Related recalls
Service brakes, hydraulic › Pedals and linkages
Ford Motor Company (Ford) is recalling certain 2014-2015 Fusion, Lincoln MKZ, and 2015 Mustang vehicles originally sold or ever registered, in Texas, Louisiana, Mississippi, Alabama, Florida, Georgia, South Carolina, North Carolina, Virginia and Hawaii.
Remedy: Dealers will replace the brake pedal bumpers and clutch pedal bumpers, free of charge. Interim owner notification letters notifying owners of the safety risk were mailed on March 4, 2022.
Service brakes, hydraulic › Foundation components › Disc › Caliper
Roush Performance Products, Inc. (Roush) is recalling certain model year 2015 Ford Mustang GT Roush Stage 3 vehicles manufactured April 1, 2015, to October 31, 2015, and equipped with Roush Extreme Duty Half Shafts.
Remedy: Roush will notify owners, and Roush-authorized Ford dealers will tighten the caliper guide pin to the proper specification, free of charge. The recall began in February 2016.
Brake complaints in other Mustang years
Frequently asked questions
How common are brake problems on the 2015 Ford Mustang?
NHTSA has 51 complaints about the brakes of the 2015 Ford Mustang, 12% of the model year's 438 complaints. The component named most often is pedals and linkages (2 mentions).
Is there a recall for 2015 Ford Mustang brake problems?
Yes — NHTSA recall 22V-011 (pedals and linkages, Jan 13, 2022); NHTSA recall 15V-832 (caliper, Dec 10, 2015). Recall repairs are free at authorized dealers.
At what mileage do 2015 Ford Mustang brake problems start?
Half of the complaints with a recorded mileage happened before about 23,000 miles, and 53% before 25,000 miles.
Is it dangerous?
Owners linked 6 crashes, 0 fires and 1 injury to brakes 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.