Ford Mustang brake failure problems

Filed May 23, 2025 · Brakes · MI · crash

My wife was pulling into her head-in parking space at work and the brakes did not slow the car down. She pressed the brakes hard. The car went over a curb and hit a fire hydrant. The fire hydrant broke off and the car rolled over it. The car went into the street and she steered it to keep it out of traffic and stopped by using the parking brake. There were no warning lights. The airbag(s) did not deploy. There were no personal injuries. The car was inspected by a repair shop and deemed a total loss. A brake line was damaged during the crash. The repair shop personnel did not think the brakes failed prior to the accident because the master cylinder had fluid in it. No other brake inspections have been done.

Filed Apr 26, 2025 · CA

We purchased a Ford Mustang for our daughter 6 years ago, and have had the following ongoing dangerous and expensive widespread issue, 6 incidents to date, caused by Ford knowingly using soy based wiring (as opposed to petroleum based) for environmental reasons, that attract rats like it was cheese. The rats have been eating through essential wiring and once in the car also eating hoses and insulation, putting our daughter’s and others lives in grave danger and costing us thousands of dollars in continuous repairs, the last time rats ate through her brakes! (luckily discovered by warning lights in her car before her brakes failed) Ford is very aware of this issue and receive many complaints but do nothing, except refer me to you after I filed a complaint with them. No warranty covers this. Only my neighbors who don't have cars with soy based wiring don't have this issue, showing that this is clearly the cause. In a futile attempt to combat this, we have expensive monthly exterminator rat service, noise makers in her car, glue pads under her car, in her car (removed when driving), spray peppermint and bleach, and check the car daily. (Governor Newsom banned rat poison in Calif making it more challenging) But these expensive and time consuming measures are not full-proof as evidence of our continual costly repairs, and nothing will work until the root cause is addressed, the soy wiring. Ford needs to replace soy based wiring with petroleum based wiring, pay for all rat damage retroactively and future repairs until the soy wiring is replaced. (I have copies of all repair receipts, dating so far from Nov 2019 through April 2025) Just one of many article links in a quick google search that shows this is a widespread issue: "Rodents can’t get enough of Fords soy coated wiring and that’s a big problem!" [XXX] Please do something because Ford won't. (you ask date of incident, I have 6, I put most recent ) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 23, 2024 · Electrical · NC

I visited the [XXX] in Greensboro, NC on [XXX], was inside the Y for around five minutes, and when I came out and got back to my car, the car would not start, the battery was completely dead. I called USAA Road Service, they came and said I had a very discharged battery. They helped me get the car started, and I got home OK. I do not know what caused the battery to fail. After the battery failed, It was inspected on July 9, 2024 by Green Ford in Greensboro, and then replaced by the Ford dealer. My safety was at risk because the dealer said the faulty battery probably was responsible for an accelerator problem I am experiencing (detailed in the federal safety agency complaint number 11619861) and a brake failure which I experienced (detailed in the federal safety agency complaint number 11619933). The Ford dealer that said the battery was defective, and as I said, replaced it (under the car's warranty). There was no warning that the battery would fail, and I do not know why it failed, and had no reason to believe it would fail. If the Ford dealer kept the failed battery, and still has it, it should be available for inspection upon request. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 19, 2023 · Brakes · CA

Anti lock brake pump leaking brake fluid from what appears to be a vent /weep hole resulting in rapid brake fluid loss and low/ soft pedal and significant loss of braking.

Filed Apr 8, 2023 · Airbags, Brakes · NV · crash · 1 injury

Accident after side swiping cattle guard, flew off the road at 70mph, landing roughly, and bouncing off desert terrain, trying to control crash outcome, realign no brakes, and no way to slow down vehicle, except no acceleration, and turned away from homes and power poles, to eventually slam into a a higher terrain, until complete stop. My repaired airbags didn't deploy, and at that speed, my passenger side wheels were shattered, tires flat, face hit the steering wheel and windshield, my knees hit dashboard, arms bounced off off everything the seat belt couldn't protect me from. Because of airbag failure to deploy, I ended up with 2 fractures, T9 and L1, 6 lose teeth making front teeth unable to use, and 2 cervical discs pushing into spinal column. I have Medicaid for insurance, and they will not do the surgery on my neck, so I have permanent nerve damage to my arms and hands, and the rest of my life to avoid any falls, or sudden injury to these areas so I can exist as a cripple, all because the safety equipment mandated by you, failed or was non existent. I had basic motor insurance coverage and no medical for me. What do you propose I do, with what's left of my car and my body parts, to continue existing in this life? Why have safety regulations when the equipment is knowingly defective, and costly, with no recourse in case something happens, before you as owner, are aware of it. I'm so pissed off to discover I own a vehicle, or paid for vehicle, that tried to kill me.

Filed Sep 30, 2022 · Brakes · 80,000 miles · CA · crash · 1 injury

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's son had sustained bruising and abrasions to the left side of his neck and forehead, he had bruising and abrasions to his shins and knees. The son also had abrasions to both his hands on the tops the hands. The contact stated that only an EMT squad had arrived and treated the son. The son had not been transported to the Emergency Room, the police were not on the scene. The vehicle had been towed to an impound lot and the contact's insurance provider declared the vehicle a total loss. The manufacturer had not been informed of the failure. The failure mileage was approximately 80,000.

Filed Sep 2, 2022 · Brakes · 67,000 miles · AZ

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.

Filed Mar 12, 2020 · Brakes · 71,796 miles · CA

While driving on a residential street at a low rate of speed I attempted to stop at a stop sign. The brake pedal went completely to the floor. The vehicle did not stop. Many lights and warnings lit up letting me know I had no brake fluid. I stopped the vehicle using the emergency brake. After having it towed to ford and inspected it was discovered that the passenger side brake line had ruptured and the driver side brake line had a 'bubble' and also needed replacement.this was a potentially very dangerous situation. If I were on the highway at a higher rate of speed this could have been fatal. Please investigate this brake failure in the 2016 mustang.

Filed Nov 6, 2019 · Acceleration, Brakes · 111,000 miles · OK · crash

My son was driving his 2009 mustang and after stopping at a stop sign in a residential neighborhood, he slowly accelerated and the car suddenly accelerated quickly on its own. He said the gas pedal went to the floor, he tried pushing brake and it was not stopping the car. It sent him through another intersection, he engaged emergency brake to no avail. Luckily his car went through an area of soggy grass that helped slow the car down, and came to a stop by running into hedges and resting next to a brick church. He described hearing the RPM's revving up along with the sudden acceleration. He also described the steering wheel as "locking up".

Filed Aug 21, 2019 · Lights · 54,397 miles · TX

The stop pedal pad brok and the brake light were always on. The car stopped braking at all suddenly! I did not crash because the loss of braking happened while parking in a low transit street. Firts there was loss of acceleration randomly in a highway. I found the pieces of the brake pedal pad in the car floor. This is a severe risk factor for crash because when the stop pedal pad brakes the car will not brake suddenly.