Service Brakes Problems of Ford F-150 - part 1

Transmission dropped into first gear at 45mph. Rear end locked up while taking my kids to school. Output speed sensor in transmission. Lead frame issue.

See all problems of the 2017 Ford F-150 🔎.

While driving , brake pedal went to the floor causing vehicle to barely stop. Upon stopping and exiting vehicle noticed brake fluid on the ground and right side brake hose had ruptured. Vehicle had to be towed for repairs. Ford service department says entire brake line and hose must be replaced due to "fitting is swollen".

Transmission & brakes . . . Acting up.

See all problems of the 2014 Ford F-150 🔎.

The brake system on my 2018 Ford F-150 2. 7l ecoboost began failing around early 2025 with a brake warning light illuminating and the pedal feeling soft, signaling a problem. The brake fluid reservoir dropped low repeatedly despite topping it off multiple times with dot 3 fluid, indicating a persistent leak. By 09:52 am cdt today, September 10, 2025, the brake pedal lost all pressure, making the vehicle completely undrivable and posing a severe safety risk due to significantly increased stopping distances and potential brake failure. At 10:37 am cdt, thick white smoke started billowing from the exhaust each time the vehicle was started, likely from brake fluid leaking into the engine via the brake booster, a symptom matching Ford recall 25s37 (NHTSA 25v236) for a defective brake master cylinder seal. This failure endangers the driver, passengers, and other road users, as the truck is a primary vehicle, with the smoke suggesting a fire hazard and possible engine damage like stalling or misfires. The issue is reproducible, with the warning light, fluid loss, and soft/no pedal persisting since early 2025, worsening today with the smoke appearing consistently on startup. It has not been confirmed by a dealer or service center yet, as the vehicle is undrivable, but I plan to tow it to a Ford dealership for inspection under the recall. No manufacturer, police, insurance, or other inspection has occurred, as the smoke issue escalated this morning; prior rear left electronic parking brake actuator replacements in 2025 due to fluid leaks were done at home. The brake master cylinder and possibly the brake booster are the failed components, with the actuator issue likely related, and the vehicle is available for inspection upon request or at a dealership. Symptoms first appeared with the warning light and soft pedal in early 2025, followed by fluid loss, complete pedal failure, and smoke today at 09:52 am cdt.

See all problems of the 2018 Ford F-150 🔎.

My master cylinder leaked in to my brake booster, so I had to replace both after losing my brake stopping abilities. I received the new parts replaced them then hookup the battery checked brakes turned off ignition. Went back to start engine nothing battery 7. 5 volts. . Replaced 250. 00 started engine brakes good drove stopped 3 times got home evening sun down brake lights are on, I cant turn them off! unplugged battery. The brake switch was on and broken could not be reset. This is a fire hazard!!! my leads for the positive where hot very hot to the touch, my power was weak on the engine while driving I almost lost my truck over that brake switch? no where does it say to replace it or why does this happen it clearly is a small broblem that can be a very big one fast!.

Gears dropped fast on the highway, rpm's went up because my foot was on gas because I was on the highway, rear end locked up and I skidded going from 60mph to 30 in a second.

See all problems of the 2015 Ford F-150 🔎.

3 weeks after purchasing a brand new 2024 f150, brake light, abs, traction control, hill start assist, antilock brake fault pre-collision assist warnings all illuminated and sounded. Took an exit and had no brake control. Went into a ditch and hit a piece of metal, causing minor body damage to my new truck. Vehicle is being worked on and electronic brake booster is being replaced. Battery was not installed properly/connected tightly. Grounding issue also found.

See all problems of the 2024 Ford F-150 🔎.

I had to do laundry loaded truck jumped in took off got on the highway doing 75 mph peep peep low brake fluid! low brake fluid, my peddle was not to the floor but was slow to stop. . No store to fill up brake fluid but an ace hardware was at my laundry mate which I got 32 oz to fill it was empty. No fluid on ground!?! did laundry drove 4 miles to walmart almost did not stop! low brake fluid and it was out! filled it back up with 32 oz brake fluid drove 4 miles more to home brakes down to floor put in park when stopped at light lucky it was a construction zone all the way home 35 mph. Got home no fluid leaking out the booster weep hole? because they dont have one anymore? took master off booster was full of brake fluid had to order both . Lucky I am an old shade tree machinic a person with out knowledge would of crashed . . .

The contact owns a 2014 Ford F-150. The contact’s wife stated that while starting the vehicle, the brake pedal traveled to the floorboard with the low brake fluid warning light illuminated. The contact inspected the vehicle and discovered that the brake fluid level was low. The contact added brake fluid to the reservoir, and the vehicle was driven to the residence. However, upon restarting the vehicle, the low brake fluid warning light remained illuminated. The vehicle was taken to the dealer, where it was diagnosed that the brake booster and master cylinder had failed and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 125,778.

The contact owns a 2017 Ford F-150. The contact stated that while coming to a stop, the brake pedal became inoperable. The contact stated that excessive force on the brake pedal was needed to stop the vehicle. There was no warning light illuminated. The contact received notification of NHTSA campaign number: 25v236000 (service brakes, hydraulic); however, the part to do the recall repair was not yet available. The vehicle was taken to the dealer but was not diagnosed or repaired. The dealer confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the failure and referred the contact to the dealer to obtain a loaner vehicle. The failure mileage was approximately 170,000.

The contact owns a 2014 Ford F-150. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed and went to the floorboard. The "brake fluid low" message was displayed on the instrument panel soon after the failure. The vehicle was taken to an independent mechanic, and brake fluid was added; however, the failure persisted while continuing to drive. The vehicle was taken to another independent mechanic, who was unable to determine the cause of the failure, and the vehicle was towed to a dealer. While at the dealer, the vehicle was diagnosed with a defective brake master cylinder and brake booster. The contact was informed that the parts needed to be replaced. Upon investigation, the contact linked the failure to NHTSA campaign number: 20v332000 (service brakes, hydraulic); however, the VIN was not included in the recall. The manufacturer was not made aware of the failure. The vehicle remained with the dealer unrepaired. The failure mileage was approximately 166,000.

Vehicle drove fine to work and upon getting in to return home and staring the vehicle, the brake pedal was instantly spongy and low brake fluid alert displayed on dash. There was a difference in 9 hours from when the brakes were fully functional to having brakes were completely out and nonfunctional. Had vehicle towed to local dealership and their diagnosis was "master cylinder is bleeding into the booster" and booster "full of brake fluid. " this exact issue has been known and was supposed to be addressed but there have been numerous issues with the new parts installed after the recall leading to subsequent master cylinder/booster failures. Since it has already been "repaired" under the initial recall, the subsequent repair cost $1,300 including diagnostic.

While driving today, my Ford f150 manual light came on while I was driving and then break assistance. Light came on, and it told me to check the brake system. And immediately immediately the truck slammed on the brakes while driving. I almost wrecked with my two year-old daughter who is autistic in the vehicle. This needs to be fixed ASAP. This is very dangerous and could’ve been a lot worse this morning.

See all problems of the 2016 Ford F-150 🔎.

Had a sudden loss of braking ability. While starting to drive the truck home, the brake pad went flat. Checked the brake reservoir and it was empty. Refilled with brake fluid and drove 2 miles, brakes went out when arriving in the driveway. It went empty again within 15 minutes. No noticeable leak. No breaks on the truck to drive the vehicle. The vehicle had to be towed to the nearest dealer due to having no brakes. Turns out the brake fluid was leaking into the booster. Noticed many other 2018 Ford f150 trucks were recalled for the same issue.

The contact owns a 2017 Ford F-150. The contact received notification of NHTSA campaign number: 25v236000 (service brakes, hydraulic); however, the part to do the recall repair was unavailable. The dealer was contacted and confirmed that the parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.

Brake failure on freeway vehicle has 2000 miles. I almost got off hwy but stayed on shoulder after brake warning avoided hitting cars and coasted with very little brakes. Could cause death vehicle was towed from hwy to the dealer.

While leaving the va parking lot, and after breaking 3 times on the way out, as I approached a major intersection, the break pedal dropped to the floor and a low break fluid warning appeared on the display. My slow approach allowed me to stop. Checked the reservoir and it was empty. I walked to the gas station and purchased break fluid, when I returned, I checked under the vehicle for a leak, to no avail. I walked back to the spot I was parked but there was no indication of a leak. I was able to get my car home, and filled the break container intending on bleeding the lines; however, florida weather forced to wait a day. Today, Saturday, I proceeded to bleed the lines but the reservoir was empty. Again, no signs of leakage around tires, break lines, reservoir, master cylinder. Everything I have searched regarding this indicates a large population of 2024-18 f150 with a master cylinder failure.

Lower steering intermediate shaft bolt loose or missing recall incomplete front brake hose jounce bracket repair recall incomplete 3. 5l engine cup plug inspection recall incomplete connecting rod inspection recall incomplete transmission main control valve body replacement please add to the list of recalls incomplete from campaign 25s19/25v164. As front brake hose jounce bracket repair recall being incomplete is a immediate concern for reporting to any driver on the highway and roadway in transit. Please report for incomplete braking issue fixed, as is is detrimental on highway traffic at high mph.

The contact owns a 2017 Ford F-150. The contact stated that while coming to a stop, there was an abnormal screeching sound while depressing the brake pedal. There was no warning light illuminated. The contact received notification of NHTSA campaign number: 25v236000 (service brakes, hydraulic); however, the part to do the recall repair was not yet available. The dealer was contacted and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The approximate failure mileage was 40,000.

My truck has been regularly serviced by Ford and yesterday out of the blue the brake pedal went soft and I got a check engine light saying low fluid. Upon inspection we noticed all brake fluid had leaked with no visible exit. We refilled the fluid and the next day, the fluid was completely drained again with no visible exit. Upon expert inspection it was noted the brake master cylinder is leaking into the booster.

Was stopped behind a car in line in the parking lot. The truck was in drive with the auto hold brake feature enabled. The auto hold disengaged and the car rolled forward rear ending the car in front of me. Collision alert didn't sound as expected. A similar recall came out August 6 for 2025 f150s.

See all problems of the 2022 Ford F-150 🔎.

The contact owns a 2018 Ford F-150. The contact stated that while driving in reverse and backing out of a parking space, the brake pedal extended to the floor when pressed causing the braking distance to be extended. The contact discovered brake fluid had leaked from the vehicle and the warning message "low brake fluid" had also displayed. The vehicle was driven to the local mechanic who diagnosed that the front passenger side brake line had failed and needed to be preplaced. The brake line was replaced and the failure was remedied. The local dealer was notified of the failure. The manufacturer was not yet contacted. The failure mileage was 140,000.

Leaving my driveway today, the 2010 Ford F-150 suddenly indicated a brake fluid level low message and the brake warning indicator turned on. The brake pedal, which was firm about a minute before, suddenly depressed to floor and the truck was stopped only with great difficulty. The sudden change in braking performance would probably have caused an accident if I had been driving in traffic. I took the truck to a mechanic who refilled the master cylinder and bled the brakes. I left the mechanic and pulled out. The brakes were fine leaving the lot. About 1/4 mile later, the brake warning came on and the brakes became spongy. I immediately returned to the mechanic and was informed that the brake master cylinder was draining into the booster. Apparently this is a recall item on later F-150s but it does not appear to include the 2010.

See all problems of the 2010 Ford F-150 🔎.

2018 Ford F-150 2. 7 liter. Master cylinder and power brake booster failure. Confirmed by independent service center. Prior to failure there was a warning light indicating low brake fluid. I then lost all braking ability within 3 brake pedal depressions. My brake pedal touched the floorboard afterwards. Given right conditions I could have sustained major injury. Components were replaced by mechanic and unavailable for inspection. There is a recall on these components for 3. 5 Ford truck but not 2. 7 Ford truck, even though the components are identical. Again, confirmed by mechanic.

The contact owns a 2014 Ford F-150. The contact stated while driving at an undisclosed speed and attempting to the slow down while approaching an intersection, the brake pedal depressed all the way to the floorboard. The contact was able to bring the vehicle to a complete stop by engaging the parking brake. The low brake fluid warning light was illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the brake master cylinder. The contact was informed that the brake master cylinder had leaked brake fluid into the brake booster. The vehicle was repaired. After investigating the failure, the contact related the failure to NHTSA campaign number: 20v332000 (service brakes, hydraulic), but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA hotline for assistance. The failure mileage was 169,000.

The contact owns a 2018 Ford F-150. The contact stated that upon starting the vehicle, the brake pedal depressed to the floorboard with the "brake fluid level low service now" message displayed. Upon inspection of the engine, the contact discovered that the brake fluid was low; brake fluid was added to the vehicle, and the contact drove to the nearest dealer. A mechanic inspected the vehicle and discovered that brake fluid had leaked into the brake booster due to a defective brake master cylinder. Upon investigation, the contact discovered NHTSA campaign number: 25v236000 (service brakes, hydraulic) and linked the failure to the recall. The dealer then informed the contact that the vehicle was not included in the recall. The vehicle was repaired. The manufacturer was also notified of the failure but offered no assistance. The contact was referred to the NHTSA hotline to report the failure. The failure mileage was 119,650.

The contact owns a 2018 Ford F-150. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed with the service brakes and low brake fluid warning lights illuminated. The contact engaged the parking brake to stop the vehicle. The vehicle was towed to an independent mechanic, where it was diagnosed that the brake master cylinder had allowed brake fluid to leak into the brake booster, causing the brake booster and the brake master cylinder to fail. The contact was informed that the brake booster and brake master cylinder needed to be replaced. The vehicle was not repaired. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA hotline for assistance. The approximate failure mileage was 100,000.

The contact owns a 2016 Ford F-150. The contact stated that while her son was driving at an undisclosed speed, an unknown brake message was displayed on the instrument panel. In addition, the failure progressed, and the brake pedal felt loose, and the vehicle would not come to a stop as intended while the brake pedal was depressed. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The contact related the failure to NHTSA campaign numbers: 20v332000 (service brakes, hydraulic) and 22v150000 (service brakes, hydraulic); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 152,000.

See attached document for complaint.

See all problems of the 2021 Ford F-150 🔎.

The contact owns 2014 Ford F-150. The contact stated while driving 60 mph and depressing the brake pedal, the brake pedal went to the floorboard before the vehicle came to a complete stop. The vehicle was not taken to the dealer; however, the dealer offered a diagnosis over the phone and believed that the brake master cylinder was leaking brake fluid into the brake booster. The vehicle was not repaired. The contact related the failure to NHTSA campaign number: 20v332000 (service brakes, hydraulic); however, the VIN was not included in the recall. The manufacturer was notified of the failure and opened a case. The failure mileage was 144,000.

I am receiving alerts on my Ford app stating that it is a parking aid alert because of electrical isse within the vehicle. Also states to service engine soon alert because of electrical issue has been detected with your vehicle. This may cause the engine start/stop feature (if equipped) to not work. Checking on this I found 0 on the NHTSA website for recalls. With further checking I was informed that this should be a recall to be done. Please let me know if I can get this repaired under the recall. I also notice when starting my vehicle in the mornings that it smokes out of both tailpipes and lasts approximately one to two minutes. [xxx] [xxx] . Thank you. My email is also [xxx] address is [xxx] , edna, texas [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2020 Ford F-150 🔎.

The contact owns a 2013 Ford F-150. The contact stated that while hauling a trailer, the brake pedal independently went to the floorboard. The abs and other unknown warning lights were illuminated. In addition, the vehicle hesitated while accelerating with the accelerator pedal depressed. The vehicle was taken to a local independent mechanic, where it was diagnosed with a master cylinder leak into the brake booster. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The contact related the failure to NHTSA campaign number: 16v345000 (service brakes, hydraulic); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 110,000.

See all problems of the 2013 Ford F-150 🔎.

The contact owns a 2014 Ford F-150. The contact stated while driving 70 mph on the interstate, the low brake fluid warning light illuminated. The contact pulled over to the right side of the road and became aware that the brake pedal was depressed to the floorboard. The contact exited the vehicle to check the brake fluid and became aware that the brake fluid was low. The contact purchased brake fluid and added brake fluid to the brake fluid reservoir; however, the failure persisted. A dealer was contacted. The vehicle was taken a dealer where it was diagnosed and determined that the brake master cylinder needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, and informed the contact that the VIN was not under recall. The contact related the failure to NHTSA campaign number: (service brakes, hydraulic). The contact was referred to the NHTSA hotline for assistance. The failure mileage was 78,000.

While driving roughly 30-40mph, there was complete loss of brakes. Complete soft pedal to the floor with no brake function. Abs and brake lights flash on dash board, parking brake malfunction warning. No prior warnings, issues, messages indicating need for brake service. My wife and kids were in the car and were lucky to be on a street where we were able to coast to a stop. Any busy street or highway driving could have been sever accident/potential loss of life incident. The dealer said they have never seen this issue before and said they went through a bunch of control modules and simply reset and made software updates. I never received a confirmed "root cause". Dealer made above mentioned software updates and drove the car for 50 miles, claim the issue/service is complete and we need to take the car. No root cause, no confirmed component failure, etc. We do not feel safe taking delivery of the car. We have requested a Ford field service technician/engineer inspect the vehicle with no luck. We have started buy back/replacement process with Ford, no decision made - tells us we are subject to lemon law as if this is a "creature comfort" issue and that we need to take the car back.

Truck has been at Ford dealership since July 9th for this recall. After updating the computer as mentioned in the recall, a “trailer brake fault” was displayed and we were left with no trailer brakes while towing our camper. It has beyond a “reasonable amount of time” to get this safety issue fixed. Compaign recall number: 25s15/25v132.