2015 Ford F-150: soft or spongy brake pedal

Filed Apr 9, 2020 · Brakes · 124,000 miles · LA

While driving on the interstate, my low brake fluid warning come on, I pulled over and had to cruise to a stop because the brake pedal was hardly responding. After getting 2 12 oz. Bottles of brake fluid brought to me, I filled up and pumped them up, seemed ok so I started again, light came on again after about 5 miles. Brake fluid reservoir was completely empty. Did this 2 more times, dumping more than a gallon of brake fluid into the reservoir. Mechanic has found no leaks in the lines.

Filed Apr 9, 2020 · Brakes · 65,700 miles · FL

While driving my local roads at about 45 MPH I received a warning on the dash for "low brake fluid" followed by a solid lit brake light on the dash. I made it home with noticeably spongy brake pedaling. I opened the hood to see the brake fluid reservoir was empty down to the sensor connected on the side. I filled it with the appropriate brake fluid to just below the max line. I pumped the brake pedal until it felt normal again. It has not moved since yesterday (april 8 2020). Today (april 9 2020), I go to take a short trip for coffee. When I start the truck and touch the brake pedal it went immediately to the floor with no resistance. Without attempting to move the truck, I immediately popped the hood and saw that the reservoir was completely empty this time. Overnight it appears that the entirety of the brake res. Was drained and it had not been driven since being topped off. No leaking under the truck nor on the driveway has been noticed. It is being towed to ford dealer service department today for this brake issue. I'm lucky I was not going at higher speeds when this occurred seemingly so abruptly. I hope it's fixed and recalled soon. My ford dealer informs me that it's not currently covered under a recall.

Filed Aug 20, 2019 · Brakes · 51,000 miles · ID

Started truck and warning light and sound notified me of low brake fluid. Found reservoir very low, added fluid, applied pressure to brake pedal and looked for leaks, no leaks found. Brake pedal felt spongy and not firm, started to move but brake pedal went almost to the floor. Found reservoir almost empty again with no leaks to be found under the vehicle or at the wheels. Had truck towed to dealership.

Filed Aug 19, 2019 · Brakes · 68,000 miles · CT

While I was driving the low brake fluid warning came on, and seconds later the brakes felt spongy and would not return. I was able to make it to a gas station and added a bottle of brake fluid to the reservoir. This gave pressure back to the pedal, but a second later the light came back on and a loss of pressure was noticed through pedal again. The pedal needs to be on the floor to getting any stopping action. I believe that the master cylinder has a leak that is causing this safety hazard.

Filed May 30, 2019 · Brakes · 47,000 miles · MD

I own a 2015 f150 with the 3.5l motor and 47,000 miles. This morning the " low brake fluid " light came on then within minutes I started experiencing low/spongy brake pedal. I pull over and check the master cylinder, the fluid level was very low. I add 2 containers ( 24 fl. Oz. ) of brake fluid to refill master cylinder and drove about 3 miles when the brake malfunction light return along with low/spongy brake pedal. I called ford roadside for a tow. There was no visible fluid leak at the master cylinder area or at the 4 wheels. However I believe that this is a major leak because that fluid did not take long to leak out ( 3 miles and about 10 minutes )

Filed May 21, 2017 · Brakes · 11,000 miles · OH

Spongy brakes and pedal goes low. A vehicle report was completed with the truck running connecting to ford via my cell phone. A issue was detected. Then run again. Detected again. Then run again a hour or so later and not detected. I see a recall inquiry has been open on 2015-2016 f150 with the v6 3.6l engine. Mine is a 5.0v8.

Filed Dec 5, 2016 · Brakes · 31,000 miles · AZ

Tl* the contact owns a 2015 ford f-150. While accelerating from a complete stop at 5 MPH, the brakes seemed to drag on three occasions. The dealer diagnosed that the brakes had a soft pedal, but the cause of the failure was not determined. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 31,000.