On vacation and out of town...was driving my Ford truck and "low brake fluid light" appeared. Pulled immediately into first parking lot walmart store. Checked fluid and found reservoir was low. Went into walmart to purchases break fluid. None available. Pushed on brake to start truck and break went to floor. Called aaa and tow truck took my truck to university auto repair. Diagnosis was master cylinder malfunction all all break fluid backed into brake booster assembly cuasing breaks to fail.my major concern was I just pulled amtrialer from phx, AZ to flagstaff, AZ on interstate rt I-17. Note: This streach of road over 100 miles is mountainess with 6% grades. It horrifies me to think if I would have lost brakes going up and down this interstate from and to home. It could have been a horrific fatility given the fact that from the time the low brake fluid light came on and mintues later I lost my breaks. Even after having my truck brakes repaired, I was very nervous dring down the I-17 interstate back to my home in phoenix. I should not have to have fear of breaks failing. Researching, I have found master cylinder and break booster assembly failed on previous years fod F 150 models. 2014 model being the most recent.

- Phoenix, AZ, USA

While driving my 2015 Ford F150 the brakes failed. First the low brake fluid light came on, I added brake fluid and everything appeared to be normal. I went to pull my truck into my garage and the brake light came on and the brake pedal went to the floor. I almost went through the wall into my house. My local service station stated that the Ford F150 2013 & 2014 had recalls on the brake master cylinder and the brake vacuum booster pump. My mechanic stated that the rear seal went and caused all the fluid to leak out.

- Lovettsville, VA, USA

I was driving in a residential street and suddenly got a 'low break fluid' warning light. Upon parking on my driveway the break pedals went all the way to the floor, and I had to use my emergency break in order to avoid collision with my garage.

- Valencia, CA, USA

We were driving when the brake system warning light came on and suddenly we lost all braking ability. The brake pedal went down to the floor with barely any brake function. We were on a back road going over 50 mph and barely got the vehicle stopped. We got additional brake fluid as the reservoir was empty. We refilled it and began driving again. Within about 3 miles, once again the brake system warning light came on and the pedal went down to the floor again giving us very little braking ability. We were 30 miles from the nearest town....we barely made it in to town. Our vehicle is currently with a mechanic (we asked for him top provider us pictures) as we are stranded over 300 miles from home.

- Pflugerville, TX, USA

I was driving on city streets when this happened. My 'brake fluid low' light came on and a few minutes later I lost all brake power. The brake pedal went straight to the floor. After getting the vehicle to my dealer, they determined the brake cylinder had failed and the brake cylinder and brake booster needed to be replaced. I have attached the dealer invoice showing the repairs, to replace the master cylinder and brake booster, which totaled $1,068.52.

- Farmville, VA, USA

Completely lost brakes while pulling a car trailer and car on highway. No leaks, but master cylinder completely dry. Refilled and went 20 miles and empty again. Master was leaking fluid into booster and being sucked into engine and burning it. Had to use emergency brake and downshift transmission to stop. Truck was towed to Ford for repair. Ford customer service wouldn't help with repair until they are told to recall them by government. Someone is going to get killed. Brakes were gone in an instant

- St Joseph, MO, USA

Complete loss of brakes. Received a low brake fluid warning. Fluid was below minimum. Topped off with dot 4 fluid and resumed driving. Brakes completely failed within a few hundred feet with a complete loss of brakes and the warning light for low fluid again and total loss of brakes. Immediately used the parking brake in order to keep from hitting 4 cars stopped in front of us. We used the parking brake to safely pull over on the highway entrance ramp

- Phoenix, AZ, USA

The contact owns a 2015 Ford F-150. When the vehicle was started, the low brake fluid indicator illuminated and the brakes did not hold when the brake pedal was depressed. The vehicle was taken to jones Ford (833-980-1600, located at 5757 rivers ave, North charleston, SC 29406) and kept for diagnostic testing. The manufacturer was made aware of the failure and stated that nothing could be done until the failure was diagnosed. The vehicle was not repaired. The failure mileage was approximately 65,000.

- Mt. Pleasant Way, SC, USA

This truck experienced sudden and complete brake failure on Friday 7/19/19. Luckily, this occurred in a parking lot, and the truck only hit a curb. Our truck was towed to bob davidson Ford in parkville, md for repair. They diagnosed failure of the brake master cylinder leaking onto and damaging the brake booster. This truck has the 3.5 liter ecoboost engine. Ford issued a recall for brake master cylinder & brake booster failures for 2013 & 2014 F150's with the same engine. Why has this failure of brake master cylinders & brake boosters not been extended to the 2015 F-150's with the same engine? this obviously seems to be a serious safety problem that should be prevented and paid for by Ford.

- Lutherville, MD, USA

Brake warning lights come on with low fluid warning; lost braking when pedal went to floor shortly thereafter when I was on expressway. I avoided accident barely. I keep adding fluid, but no sign of leaking that I can see, but getting white smoke from exhaust. Very dangerous!

- Chicago, IL, USA

The contact owns a 2015 Ford F-150. While driving 60 mph with the cruise control engaged, the brake pedal was depressed lightly to disengage the cruise control and the low brake fluid indicator illuminated. The contact proceeded to depress the brake pedal to slow the vehicle down and the brake pedal became stuck to the floorboard. The contact was able to coast the vehicle onto the road shoulder and engaged the emergency brake. The vehicle was towed to the contact's home. The contact inspected the vehicle himself and found that the master cylinder released the brake fluid into the brake booster. The vehicle was not taken to the dealer for diagnostic testing. The vehicle was not repaired. The manufacturer was contacted and stated that the vehicle was not included in NHTSA campaign number: 16V345000 (service brakes, hydraulic). The vehicle was not repaired. The failure mileage was 53,628.

- Choctaw, OK, USA

Brake master cylinder reservoir leaked all fluid into the brake booster resulting in "low brake fluid" warning seconds before brake pedal went all the way to the floor with no braking power. Traveling in the sacramento mountains on vacation in southern New Mexico when this happened. Could have been very serious not only injuring us but other opposing traffic. Occurred on hwy 82 between cloudcroft and alamogordo on July 6 2019. Very steep stretch of road that cost the life of another truck driver just 1 month prior that went over the side down the canyon. Called the Ford dealer in alamogordo and they said no warranty and we would have to pay in addition to having the vehicle towed. Again, we were on vacation and stranded. We had a mobile mechanic order the necessary parts, and 3 working days later (happened on a Saturday and parts arrived Wednesday) we were back on the road. Very stressful since this has been a major recall on years 2013-14, with over 300 reports on 2015-16 with no recall. Brake failure is serious, and Ford should treat it as such.

- Palestine, TX, USA

Brake fluids are leaking from master cylinder into the driver side cabin floor and slight loss of brake performance when driving in the city streets or highway.

- Manvel, TX, USA

I had the vehicle in for warranty issues at our local dealer. I received a call from dealer that the brake booster had to be replaced, due to the mechanic loosing brakes and almost hitting service bay wall. Ford is currently making us pay for the brake booster and also an emissions related fault.

- Indiana, PA, USA

Was driving on the interstate and the warning light came on for low brake fluid. I got to my exit and the brakes went all the way to floor and I could just stop in time. Had to pull over and get a tow the rest of the way home.

- Casselton, ND, USA

The contact owns a 2015 Ford F-150. The contact stated that all the indicators illuminated on the instrument panel and a message appeared indicating that the brake fluid was low. Also, while driving 70 mph, the brake pedal was depressed to the floorboard; however, the vehicle failed to respond. The vehicle came to a rolling stop. The vehicle was towed to butch oustalet Ford (9274 us 49, gulfport, ms 39503, (228) 863-5525) where it was diagnosed that the master cylinder failed and brake fluid leaked onto the brake booster. The vehicle was not repaired. The manufacturer was contacted. The failure mileage was 90,800.

- Gulfport, MS, USA

I have experienced an egregious safety issue with my vehicle whereas the braking system has failed. This morning while on the interstate to bring my two kids (3 yrs old and 12 months old) to daycare, my dashboard indicated "brake fluid level low." While I continued to drive, I assumed perhaps the brake fluid may need to be topped off for whatever reason. However, to my surprise- about a mile further I discovered that the brakes were inoperable and I immediately panicked. I took it upon myself to get to the shoulder of the highway and allow the vehicle to come to a rolling stop and inch toward the nearest exit. Fearing for the lives of myself and two children, I further inched toward the nearest parking lot (burger king) where I could have my family removed from harm's way. The brakes are totally unusable and when applying the brake pedal, the pedal goes all the way down to the floorboard. There is no pressure or resistance as the brakes would present themselves when working properly. I refuse to drive this vehicle with this issue and am now demanding safety recall. My vehicle was towed to butch oustalet Ford of gulfport, ms on 7/12/2019. My service advisor, zach kunz, advised that the braking system has indeed failed. Specifically, the seal on the master cylinder became defective and caused the brake fluid to spill into the brake booster. This was a sudden and total failure of the braking system. I was further advised that this is not covered under any warranty and that teh repair costs were upwards of $900. I am now stuck paying $900 for a prolific safety defect where Ford's failure almost caused fatality of myself and children. I am demanding that this be placed on mandatory recall, at the expense of Ford Motor Company. Current mileage: 90758

- Gulfport, MS, USA

After leaving the gym one morning, I went to the parking lot and started my truck. Instantly a low brake fluid warning light shows up, which I thought was weird because my brakes felt completely normal driving to the gym. I tested the brakes and immediately pushed the pedal to the floorboard without resistance. I went outside and noticed no leaks anywhere along the brake system. Popped the hood and the brake fluid reservoir was completely empty, but no leaks. Hopped back in and tested the brakes while driving in the parking lot. I had about 5% braking power, at best. Started reading online and found hundreds of complaints about people's brakes going out in the same fashion. Instant failure. Luckily mine was very early in the morning while parked in an empty parking lot. Others had it happen while driving on a freeway, towing a trailer, much more dangerous situations. All had the same issue - failed seal at the master cylinder, allowing the vacuum in the booster to instantly suck all the brake fluid out. I had the truck towed to the dealership and sure enough, failed master cylinder and ruined booster. $1000 to fix. I read elsewhere that Ford changed oem manufacturers for the master cylinder at some point, which the dealership confirmed. Also, this issue is under official investigation #RQ16001, but has yet to be an official recall. Considering recalls were issued for 2013 and 2014 models for the same reason, and the over 600 complaints I've found for the same reasons for 2015, I find it unacceptable this hasn't been officially recalled yet. This could have been an incredibly dangerous situation.

- Clayton, CA, USA

I started my truck to back out of the driveway and when I went to press the brakes the pedal went all the way to the floor with the truck almost running into my neighbor's curb. I pulled back in my drive way and again the pedal went to the floor barely stopping the truck. I checked the brake reservoir but it was full and no warning lights came on. Having towed to dealer, appointment scheduled for Monday 7/15/19.

- Edmond, OK, USA

The contact owns a 2015 Ford F-150. While starting the vehicle, the low brake fluid level warning indicator illuminated. The contact refilled the brake fluid and the warning indicator turned off. When the vehicle was started, the brake pedal traveled to the floorboard. The contact rechecked the brake fluid level and saw no leaks underneath the vehicle. Malouf Ford Lincoln (2210 us highway 1, North brunswick township, NJ 08902, (732) 951-0300) stated that there were no recalls; therefore, the contact would have to pay for the repairs. The manufacturer was not contacted. The failure mileage was 53,300.

- East Hanover, NJ, USA