On Wednesday I had the oil changed at the dealership. After returning home I checked all fluid levels, including brake fluid. All okay. Four days later when I got in the truck and started the engine. I got a warning light about the brakes. Upon inspection the master cylinder was empty. I could not find any sign of a leak any where. I assume the master cylinder is leaking out the back into the booster. There was no sign of gradual loss of braking performance. The truck will be brought to the dealership tomorrow.

- Walker, LA, USA

I own a 2015 Ford F-150 pickup 4WD 4 door since new. Has 49K miles. The brake light came on while traveling on a busy expressway I checked my brakes and had no pressure at all, the pedal went right to the floorboard I had no brakes a complete brake failure without warning! I managed to down shift and use the parking brake to stop. This is a very serious issue that need to be addressed, a complete brake system failure without warning should not happed to a well maintained 3 year old truck. Please look into this before someone gets seriously hurt or killed. At the time of brake failure we were traveling at 55 mph on a busy NY expressway during rushhour. I took the truck to a local repair shop and have been told it's a failed master cylinder, he called Ford to get a replacement part and the original replacement part is discontinued waiting on the replacement of that. I have learned that Ford has a recall for this same issue on 2013 and 2014 F150 with the 3.5L ecoboost engine and has received complaints of same problem on the 2015, S. why has Ford not issued a recall for the 2015 models! (xxxx) parts of this document have been redacted to protect personally identifiable information pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Oak Beach, NY, USA

Driving at 20 mph on residential street, applied brakes, pedal went to floor. Complete failure of brakes. Simultaneous warning on low brake fluid and brake warning light. Added fluid to reservoir. Brakes failed again within a few minutes. No external evidence of fluid leak, but reservoir was again low. Warning lights remained lit entire time

- Herndon, VA, USA

I was driving on the freeway on my way to the office this morning, as I approached heavy traffic travelling at 75 mph. I applied the brakes and my brake pedal went completely to the floor. The truck had complete and total brake failure. I was fortunate enough to avoid an accident by going down the grass in between the 2 opposing lanes of traffic.

- Aurora, CO, USA

I was driving vehicle on hwy at 55mph pulling a 20 foot pontoon boat. Brake light came on with audible warning. I came to the next stop sign and the brake pedal went nearly to the floor with severe diminished braking ability. I limped the truck to a gas station a mile down the road where I checked the brake fluid reservoir which had a 1/2 inch of fluid left in it. I put 12 oz. Of brake fluid in the reservoir. I got under the truck and checked the master cylinder and brake lines from the master cylinder to the back of the truck. I located no leaks whatsoever in the system. I continued another approximate 20 miles and the warning light came on again at which time I stopped again and added 48oz total of additional brake fluid however it disappeared with no leak anywhere. I had to have the truck towed 190 miles home as I was on a family vacation. The truck was towed directly to the dealership and will arrive on Monday August, 20 2018.

- Hubertus, WI, USA

A "low brake fluid" warning appeared in the center of the instrument cluster. Shortly thereafter, the brake pedal went all the way to the floor when I needed to slow down to turn at an intersection. The resolution was to replace the master cylinder and the brake booster. This is a known issue by Ford, yet there has been no recall for the 2015 F-150 trucks with this problem.

- Silvis, IL, USA

Brakes completely failed while trying to stop from 35 mph at a stop sign entered highway 260 in overgaard AZ - crossed the highway applying full pressure on brake pedal and using parking brake - came to a stop and checked the fluid level all brake fluid was gone, added 12 oz of dot 4 fluid and backed the truck up and parked in a another place to check for leaks - checked the level and all fluid was gone again. No sign of leakage. Dealer looked at the vehicle on 8/9 and determined that the brake fluid was leaking from the master cylinder into the brake booster.

- Overgaard, AZ, USA

While on vacation at lake, the truck completely lost brakes. I dropped boat in water and parked in lot. Upon returning from day of boating, I started truck and began driving down boat ramp. I hit the brakes to slow and make the U turn to back down to water and the brake pedal went fully to the floor and alarms and brake messages began flashing on dash. There was very little deceleration. Luckily I was not moving too quickly and able to keep from hitting other people and vehicles on the ramp by turning crosswise on the ramp. Certainly could have been much worse if brakes had failed while fully loaded up trailer, less maneuvering options or with more speed. Upon checking the master cylinder was completely empty. There were no signs of leakage on any of brake lines or components. Obtained fluid and filled reservoir completely and able to get back to campsite. However, two hours later the reservoir was empty again. Finally determined fluid was leaking into brake booster and that is why no fluid leaks could be detected. The residual vacuum after engine is shut off sucks out all the fluid while vehicle is parked. Apparently the engine burns brake fluid fairly cleanly as the exhaust did not smoke excessively on startup. Removed vacuum line from booster and refilled reservoir so that it could be driven to dealership with non-boost assisted brakes. Dealership verified the master cylinder was indeed leaking into booster and replaced master and booster at a cost of $650. They said that although previous years that had this exact problem were covered mine was outside of the covered vins and not covered.

- Billings, MT, USA

My wife started driving the vehicle and a short time later a "brake fluid low" warning came on. She applied the brakes and the brake pedal went to the floor and braking action was severely compromised. In order to get the vehicle off the road to a safe place, she had to continue to drive the vehicle a short distance, in order to bring the vehicle to a stop once in a parking lot she had to put the truck in tow haul mode (engine braking) and use the emergency/parking brake. We had the vehicle towed to a local service shop. They diagnosed the issue as a master cylinder leak into the booster. We then had the vehicle towed to dch Ford of thousand oaks and they diagnosed the issue the same and said the master cylinder and booster need to be replaced. Vehicle has less the 50K miles and is the V6 with ecoboost. 2013 and 2014 models are apparently under active recall for same issue. 2015 (our year) is under recall query/investigation # RQ16001

- Newbury Park, CA, USA

While driving my 2015 Ford F-150 ecoboost at 45 mph on a city street I had a low break fluid warning light come on. I stopped at a stop light and all seemed fine.I proceeded 2 blocks to find somewhere safe to check the brake fluid level. When I tried to stop at the next stop light I had no brakes at all!!! I went through the red light intersection with my foot to the floor on the brakes. With luck, I did not hit another vehicle. I coasted slow enough to use my parking brake (E-brake) to make a full stop. I open the hood and noticed that the brake fluid reservoir was almost completely empty. After carefully examining all of the brake lines, fittings, calipers, master cylinder and the engine compartment no brake fluid was found leaking anywhere. I had the 2015 Ford F-150 ecoboost towed to a dealership. Also about a week ago during a long road trip I noticed a lot of wind noise coming from the drivers door. I was on an interstate going about 75 mph. I got off of the interstate and re-closed my door thinking I did not shut it hard enough. About 5 miles down the interstate driving about 75 mph I went over an approach (or a bump) to a bridge and the door dropped out of it's closed position and I could stick 4 fingers out between the door and door frame. I pull over at a safe area to exam the door and frame. I noticed that the door bolts (top and bottom) that hold the door hinge to the door had come loose and backed out about 4 turns. I tightened them and finished my trip. I notified the dealership so they can see why that had happened.

- Aurora, CO, USA

The contact owns a 2015 Ford F-150. While driving approximately 30 mph, the brakes failed and the brake pedal extended to the floorboard when attempting to stop the vehicle. The message "brake fluid low" later displayed on the instrument panel. Upon inspection, it was discovered that the brake fluid reservoir was empty. After refilling the brake fluid reservoir with brake fluid, the brakes continued to malfunction. The vehicle was taken to the local dealer (pearson Ford, 10650 North Michigan rd, zionsville, in, 317-873-3333) where it was diagnosed that the master cylinder and brake booster were faulty and needed to be replaced. The vehicle was repaired and the failure was remedied. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 58,000. Updated 10/15/18

- Indianapolis, IN, USA

There is an existing adaptive cruise control safety recall open for this year, make, and model, but my truck also experiences the exact same issues described by Ford on their own site every time I use the adaptive cruise control: Https://media.Ford.com/content/fordmedia/fna/us/en/news/2015/09/30/Ford-issues-five-safety-recalls-and-one-safety-compliance-recall.html I'm sure that the existing safety recall needs to be expanded to additional vins within the F-150 range of vehicles. It is extremely dangerous in the way it currently operates.

- Spanish Fork, UT, USA

The contact owns a 2015 Ford F-150. While driving 10 mph down a hill, the brake pedal was depressed and failed to respond. The contact applied the emergency brake to stop the vehicle. There were no warning indicators illuminated. The vehicle was towed to the dealer (phil long motor city, 1212 motor city dr., Colorado springs, co 80905, (888)-701-7494) where it was diagnosed that the brake booster was faulty. The vehicle was repaired. The manufacturer was made aware of the failure, but no action was taken. The failure mileage was 44,300.

- Colorado Springs, CO, USA

Brakes went out while driving. Brake fluid keeps disappearing. Brake fluid has leaked into the intake and caused massive amounts of smoke from the exhaust, the master cylinder failed at only 42K miles.

- St Louis, MO, USA

The contact owns a 2015 Ford F-150. While driving 55 mph, the brake pedal was depressed, but the vehicle failed to stop. The contact also stated that the brake pedal traveled to the floorboard. The contact was able to safely stop the vehicle by letting it coast to a stop. Also, the brake fluid low warning indicator illuminated. The vehicle was towed to I-77 Ford (3315 charleston rd, ripley, wv) where it was diagnosed that the sealant failed in the booster cylinder and both the master cylinder and booster cylinder needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was approximately 75,000. Consumer stated since the brake failure on 7/10/18 and completed repairs on 7/17/18. Also, since an I77 mechanic told me that I may lose the catalytic converters because the brake fluid went thru them, I traded the truck on 7/28/18. Updated 10/15/18

- Ravenswood, WV, USA

On July 21, 2018 while driving home from lake ray roberts at 10:30 pm a low fluid level warning appeared on the console of my 2015 F-150 truck. The warning was shortly followed with total brake system failure. After further inspection the fluid from the brake master cylinder had drained into the brake booster. This resulted in total loss of hydraulic brakes and a requirement to use the emergency brake to stop the vehicle.

- Oak Point, TX, USA

While trying to stop at a busy intersection my brakes completely failed. Seconds later I noticed a brake fluid warning light. Upon investigation, brake fluid was very low. Added more fluid to correct the issue, only to be in the same situation a few miles down the road. Ford customer service has been very unhelpful. Parts agents hung up on me, and no guidance as to where I can find replacement parts. Vehicle is currently parked and can't be driven until fixed. I bought aftermarket parts and have to miss days of work and pay for a rental. There is only 68K miles on the truck and 3 years old. Ford knows about this and has not issued any recalls. I hope this is addressed before someone is seriously injured or dies. They are not willing to talk about it on their chat line.

- Sebring, FL, USA

While towing a trailer at approximately 15 mph on a city street and slowing (braking), the front brakes on the F-150 ceased to work and the vehicle dash displayed a warning there was low brake fluid. Fortunately there was no collision as this was not a panic stop situation, the rear brakes of the vehicle worked, and there were trailer brakes to stop the vehicle. Upon inspection, the master brake cylinder had failed and caused the brake fluid to leak into the vacuum (brake) booster. This is the same failure outlined in NHTSA recall 16V345000 covering 2013 to 2014 F-150S. I believe this recall needs to be expanded to 2015 vehicles as well.

- Vista, CA, USA

The contact owns a 2015 Ford F-150. While the vehicle was engaged in park, the brake pedal was depressed and traveled to the floorboard. In addition, the brake warning indicator illuminated. The contact mentioned that brake fluid was added to the vehicle; however, the brake failure persisted. The vehicle was taken to J.C. lewis Ford (9505 abercorn St, savannah, ga 31406, (912) 216-2918) where the master cylinder, booster vacuum valves, vacuum lines, and stop lamp switch were replaced. In addition, the brake system was flushed. The manufacturer was notified of the failures. The failure mileage was 54,989. Updated 10/15/18

- Thompson's Station, TN, USA

I experienced total brake failure while driving. I was able to stop with the parking brake. I checked the brake fluid reservoir and found it empty. There was not a crash involved.

- Oconomowoc, WI, USA