Problems · by component

2021 Ford Mustang Mach-E service brakes problems

31 owner complaints to NHTSA about the 2021 Ford Mustang Mach-E cite service brakes, 9% of all 353 complaints for this model year.

Complaints
31
9% of all complaints
Crashes
2
Reported by owners
Fires
0
Reported by owners
Injuries
1
Reported by owners
01 —Owner reports

What owners say about the service brakes

Verbatim from NHTSA complaints, newest first
“I was involved in a car accident on the XXX I was in the turn lane and a second vehicle hit my driver side, spun me around, and I ended up facing the opposite direction. What occurred next is my safety complaint. The vehicle continued to travel forward and, in fact, accelerated and I was unable to turn or stop in spite of hitting the brake. It caused me to hit a third vehicle and I stopped short of a gas line. There was a recall on this vehicle 22S29. The issue was a functional safety monitor software fault which potentially caused unintended acceleration, unintended deceleration, or unexpected movement I purchased the car in 2023. The recall was dated May of 2022 and was noted on the market valuation report / supplemental information. I was not aware of this recall and I do not believe the issue had been corrected prior to purchase in spite of being told that all recalls had been addressed prior to my purchase. Luckily, nobody was severely injured. I sustained chest wall contusion from the airbag, possibly rib fracture(s) and sternal fracture. My grandson who was [XXX] old was in the backseat and he was not injured luckily but was very traumatized. There were…”
Owner complaint to NHTSAFiled Oct 3, 2026Steering, Service brakesCrash reportedODI 11768709
“The contact owns a 2021 Ford Mustang Mach-E. The contact stated that while driving approximately 20 - 25 MPH in the rain at night, the brake pedal was bouncing up and down. The contact stated that the doors locked and failed to open. Additionally, the vehicle stalled. The contact stated that the hazard lights were inoperable. They stated that one of the passenger’s side tire warning lights was illuminated. The contact stated that the battery was at 98 percent and that several unknown warning lights were illuminated. The vehicle was taken to the local dealer to be repaired under NHTSA Campaign Number: 22V333000 (Vehicle Speed Control, Power Train) prior to the failure. The contact called Roadside Assistance, but Roadside Assistance was unable to assist. The contact stated that a Police Officer arrived on the scene to assist. The vehicle was towed to the local dealer after several hours. The vehicle was not diagnosed or repaired. The manufacturer was contacted but no assistance was provided. The failure mileage was approximately 40,400.”
Owner complaint to NHTSAFiled Oct 20, 2025Power train, Service brakes, EngineODI 11694472
“Car stalled once while going to a military appt but started up 3 mins later. Car then made a noise then stalled out of nowhere on the highway at a slow speed in heavy traffic causing anxiety. vehicle then had me stranded waiting for a tow to find out it’s the HVJB .”
Owner complaint to NHTSAFiled Oct 15, 2025Electrical system, Service brakes, Fuel/propulsion systemODI 11693497
“Ford had a recall on the brakes. The brakes were services 3 times in relational to this issue. Now again the front end shutters when braking especially at highway speed. The dealer says the pads need to be replaced and the rotors resurfaced .This is the 4th time in 42,000 miles. they will not warranty this on going issue. If the pads need to be replaced 4 time in 42,000 mile on a vehicle with regenerative braking there is a obvious issue. I feel this is an on going issue that was never corrected .”
Owner complaint to NHTSAFiled Sep 1, 2025Service brakesODI 11684260
“The contact owns a 2021 Ford Mustang Mach-E. The contact stated that while driving at an undisclosed speed and the brake pedal was depressed, the vehicle did not slow down as intended, and crashed into another vehicle. The contact sustained neck, head, and arm injuries. Medical attention was needed. A police report was filed. The vehicle was towed to a body shop. The manufacturer was not notified of the failure. The failure mileage was approximately 46,140.”
Owner complaint to NHTSAFiled Jul 15, 2025Service brakesCrash reportedODI 11673754
“Was driving and suddenly all errors started popping up Hill start assist warning 1 pedal driving unavailable Pre collision assist not available Antilock brake fault, etc Lost braking power, steering got stiff, accelerated suddenly.”
Owner complaint to NHTSAFiled Jun 10, 2025Power train, Vehicle speed control, Service brakesODI 11666168

Showing 6 of 31 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 6, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.