Vehicle has 124,058 miles. On this date - Oct 14, 2021, brake pedal got soft, audio and visual warning saying low brake fluid level. Luckily was just slowly pulling into driveway after driving at 55-60 on US 341. Checked brake fluid level. It was indeed very low. Added DOT4 fluid. Drove vehicle slowly in back area and depressed brake pedal several times. Pedal still not quite right. Thought maybe had air in lines. But soon audio/visual warning came on. Checked brake fluid level. Low again. Looked underneath for any obvious leaks - none. Check fire wall - nothing. So assumed fluid was going in to booster. Looked on internet and found other complaints just like this. This is EXTREMELY dangerous. Has anyone been killed yet? The brake parts need to be built like aircraft parts.

- Perry, GA, USA

Brake failed in parking lot and vehicle crashed into another car. A low brake fluid light came on and very shortly (1 minute) after the brake failed completed. Vehicle was serviced at dealer two months ago. Contacted Ford corporate and Ford dealer. Ford corporate said there is nothing they can do. Ford dealer unresponsive. This is a major safety issue. I have never heard of real issues with complete brake failure on a newer car. Very dangerous.

- Windermere, FL, USA

Breakfast fluid leaking, brake fluid light on. Found brake master cylinder leaking inside of brake booster.

- West Covina, CA, USA

Wife started car. Pushed on the brake to put it in gear. Brake pedal went to floor. Checked master cylinder. Cylinder was completely empty. Brake fluid leaked past seals in master cylinder into the brake booster, then got sucked into engine and burned. No warning lights came on at all.. Luckily wife was at the pool down the road from our house when it happened. She drove 5 mph back to the house. A four year car should not have a faulty brake master cylinder. Master cylinders should last for at least 10 years. Ford has a major problem brewing.

- Northlake, TX, USA

Total brake failure while backing up, almost hit another vehicle, shifted to forward to avoid accident, loss of brake fluid in master cylinder to brake booster. Exact symptoms as recall 20S31 with 2014 to 2017 F150. The Expedition is on AF150 chassis. According to dealer not under recall but probably should be. Out of warranty. Repaired on my dime. Replaced master cylinder and cleaned booster. Vehicle was in motion at time of incident. Just glad I wasn't on the boat ramp or highway

- Canyon Lake, TX, USA

The brake system went out while driving my 2017 Ford Expedition. The warning light came on indicating low brake fluid. I called Ford about the issue to which they told the issue was not covered under the warranty. After some research there is a recall on the master brake cylinder and brake booster system on the F150 ecoboost. NHTSA campaign number: 20V-332. Ford's reference number for this recall is 20S31. The my Expedition has they same issue. The F150 and Expedition are the same under the hood. The vehicle is safety hazard due to this issue.

- Ladson, SC, USA

Started car, apply brake to shift into gear. All of the sudden, the brake pedal went straight to the floor and the low brake fluid light came on and the car started to roll so I applied the emergency brake to stop the vehicle. And put back into park.

- Hacienda Heights, CA, USA

The contact owns a 2017 Ford Expedition. The contact stated that while in the drive way the contact started the vehicle and depressed the brake pedal to place the gear shifter into drive and without warning the brake pedal went to the floor. The vehicle was towed to sarasota Ford located at (707 S Washington blvd, sarasota, fl 34236, (941) 366-3673, where it was diagnosed and determined that the brake booster needed to be replaced. The repair was still pending. The manufacturer was made aware of the failure but no further assistance was provided. The failure mileage was approximately 54,000. The VIN was not available.

- Delaware, OH, USA

Exiting the 215 northbound, we stopped and parked at a store. While parked the indicator light came on for low tire pressure. I did not pay that much attention because the car indicator light has come on before and the car had recently had its routine maintenance check. When driving was resumed the car began to wobble. Assuming we had a flat, we attempted to drive to a more illuminated area to inspect the car and call road side services. The car at this point was beginning to decelerate almost to a stop so I inched car onto an unpaved area. I assumed the car's slowing and stopping on its own was a safety feature. As I pulled to the side of an unpaved city road, I had my foot on the brake but not in the parking gear. The car was stationary as my sister exited the car and to inspect the tires. The right rear passenger tire was fully deflated. My two daughters were about to get out of the car so had unfastened their seatbelts. This is when the car made a quick sudden jerk forward, I pressed my foot on brake to make sure the car was at a complete stop and that was when it felt like a force had pushed the car to top speed, an sudden unintended and forceful acceleration. I attempted to brake but I had no control. I was trying to avoid hitting the pole, but also had no control over the steering wheel. The car collided with a water valve/pole and chain link fence at top speed.

- Anza, CA, USA

The brakes went out suddenly. After taking to a mechanic we were informed that the master cylinder had a catastrophic failure which resulted in leaking brake fluid corroding the brake booster. Research has led me to believe that this is a common problem found in these vehicles. Thankfully my wife was only backing out of the driveway when it happened so she did not have an accident.

- Abilene, TX, USA

Below please find my account of a very frightening event that took place when my 2017 Ford Expedition malfunctioned. In late August, 2018 we were on vacation in seattle, wa., visiting my son and his family. Five of us were in my Expedition and my son was driving. We pulled up to park by his house on a steep road. He put the vehicle into park, applied the parking brake, removed the keys, and proceeded to get out. There were three adults and two children (ages 7 and 4). All three adults got out and were helping the children out when the car rolled forward on its own. I was out of the vehicle on the passenger side. I tried to hold the door handle to stop the vehicle from rolling but it took off. My son who was outside of the vehicle also realized what was happening, jumped back in, and applied the brakes to stop the car. It rolled about 12 feet downhill before he could stop it. The two children were still in it. The street was on a very steep incline that I would guess to be about 25 degrees. If my son had not stopped the car it could have rolled about 100 yards through two intersections and into a house with the two children in it. I don't even want to think about what could have happened to them. We took the Expedition to a Ford dealership in seattle (Ford of kirkland) to get it checked out. They stated that they could not find anything wrong. After returning home from vacation, we took it to the local dealership (bolton Ford, lake charles, la. Where it was purchased new) and they said that they could find nothing wrong. What do I do now" can Ford explain what happened and reassure me that it will not happen again"

- Lake Charles, LA, USA

After driving in moderate rain for 15 miles and then braking in moderate rain, a loud grinding noise was heard, brake pedal became hard and no braking action was available. I was able to safely get the vehicle to the shoulder and come to a top using uphill grade of the road way. The vehicle was taken to the woodhouse Ford dealership in blair, ne. Brake message light was on. The service technician wrote the following: "usind ids found code C109D-20 as the only code stored. Performed vacuum system checks. Checked for leaks through lines, passed. Tested vacuum supply from intake at idle, about 19". tested vacuum from vacuum pump, found vacuum pump to intermit fail to produce vacuum. Hoisted vehicle, removed and replaced vacuum pump. Reassembled vacuum lines and roa tested vehicle to verify repair. Post road test vehicle brake system functions properly at this time with normal pedal feel."

- Blair, NE, USA