Transmission randomly down shifts and then shifts back up a gear. Then speed control randomly drops and won-??t respond

- Morganfield , KY, USA

My vehicle has the 6r80 transmission and has random down shift and up shift associated with a lead frame going bad in the transmission

- Ocala, FL, USA

The contact owns a 2015 Ford F-150. The contact stated that while driving approximately 75 MPH, the transmission erroneously downshifted from 6th gear to 1st gear, causing the vehicle to abruptly decelerate. The contact stated that after the failure, the transmission failed to shift out of 1st gear. The vehicle was later towed to the residence. The cause of the failure was not yet determined. The local dealer was contacted, but no assistance was offered. The manufacturer was not yet contacted. The contact was made aware of NHTSA Action Number: PE25002 (POWER TRAIN). The contact stated that the vehicle had experienced the failure listed in the investigation. The failure mileage was 105,000. The VIN was not available.

- Weston, WV, USA

The contact owns a 2015 Ford F-150. The contact stated that while driving 25 MPH, the transmission unexpectedly downshifted to 3rd gear, and the vehicle failed to accelerate as intended while depressing the accelerator pedal. The message -??Hill Start Assist Unavailable-?? was displayed, and the traction control warning light was illuminated. The message Automatic Cruise Active turned off was displayed. The contact stated that on another occasion, while driving at 20 MPH, the transmission unexpectedly downshifted. The contact stated that before the transmission downshifted, the accelerator pedal felt loose. The message -??Hill Start Assist Unavailable-?? was displayed, and the traction control warning light was illuminated. The message Automatic Cruise Active turned off was displayed. The vehicle was taken to the dealer but was not diagnosed due to the cost. Most recently, the contact stated that while driving at a slow speed, the transmission unexpectedly downshifted. The contact stated that the vehicle stalled. The contact was able to restart the vehicle; however, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The vehicle was not diagnosed or repaired after the most recent failure. The manufacturer was not notified of the failure. The failure mileage was 124,950.

- Charleston, SC, USA

The transfer case is leaking, caused by galvanic corrosion. Ford used steel bolts on the aluminum transfer case housing which created the corrosion.

- Mass City, MI, USA

While driving at 60 mph my vehicle went from the 6th gear down to 1st gear on its own bringing the truck speed down very quickly the vehicle behind me almost hit me in the rear I pulled over speedometer stopped working and a imagine of a wrench was on the dashboard I cleared the wrench ??"? image on the dashboard and tried to restart the truck turned the key and nothing happened tried again and truck started pulled out and started driving home 4 miles away and it happened again when I got home I googled it and found it is a known problem with the transmission in the 2015 ford f150 where the sensors in the transmission fail to read your speed and then reacts as if the vehicle is stopped so it then puts the transmission into 1st gear where it would be when you are stopped which creates a very dangerous situation especially if you are on a crowded road at higher speeds

- Sugarloaf, PA, USA

Transmission down shifts while accelerating, slips when starting from a dead stop, and shifts extremely hard when shifting. It is a safety risk especially when pulling out at an intersection, as it stops (or will slip) in the middle of the intersection. It has not been confirmed by the manufacturer or dealer, only by the article from USA Today. The vehicle has not been inspected by anyone, as it just started yesterday. There were no early indications or warning signs prior to it starting yesterday (08/06/2025).

- Ford City, PA, USA

My transmission down shifts while driving and locks up my rear wheels. It almost caused me to wreck on the highway today.

- York, PA, USA

Erratic shifting of the transmission while driving. Dropped into lower gear causing me to skid on a wet surface. Luckily was only driving at 45 mph or it could have been worse or caused an accident.

- Georgetown, SC, USA

Galvanic corrosion of transfer case.

- Bloomsburg, PA, USA

I have 80,000 and my transmission went out driving up a mountain road No waring light no over heating it just stop going. My shop believes it was from the factory the trans pump went out.I see your looking into this year for trans problem.

- Lawndale, CA, USA

Transmission slips into third at high rate of speed exceeding 45 mph. Transmission will stay in third causing slow acceleration on turns.

- Tucson, AZ, USA

The contact owns a 2015 Ford F-150. The contact stated that while driving at 45 MPH, the gear shifter independently shifted out of the intended position. The check engine warning light was illuminated. An independent mechanic was contacted. The vehicle was taken to an independent mechanic where it was diagnosed, and determined that the transmission range sensor needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 24V444000 (POWER TRAIN); however, the VIN was not included in the recall. The manufacturer was not notified of the failure. The failure mileage was 112,000.

- Pueblo, CO, USA

Seems to be the same Lead Frame issues as previous years. Rough downshifts, flickering gear indicator on the screen, shuts off when in park (not safety related) for short term, fails to initially crank after previous unintended shut off.

- Moncks Corner, SC, USA

i was driving my truck down the highway and all of a sudden my rears wheels locked up making me lose control of my truck take goodness i did'nt rollover no my transmission is shifting threw gears from 1st to 6th to 3rd this is my second f150 that i have had my old one had the same problem but my old one didnt lock up my tires my phone number is [XXX] [XXX] but please text because at work you cant use my phone my truck is parked in the garage im afraid to drive it need assistance in fixing it INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Slaton, TX, USA

Began experiencing hard shifting unexpectedly. Took it into dealership and they advised my lead frame assembly needed replacement. In research, I found this is currently under investigation by the NHTSA's office for my year and transmission model.

- Tulsa, OK, USA

First time this incident happened (around April 2025) while driving on the highway. Going about 70 mph and the truck dropped down into second or first gear almost causing an accident. Had to pull over on the side of the road. Check engine light was on the dash. Turned off the truck And let it sit a little bit and restarted it and it seemed to be OK. This most recent incident happened on Saturday, July 5th 2025, truck kept dropping down into first gear and then just would not go anywhere. Had it towed to Auto clinic and they diagnosed the truck with not recognizing the gear selection position. They stated that this truck should have fell under the recall status for 2015-2017 f150-??s as it is doing the exact same thing that they have seen many trucks get fixed for because of the recall. The Auto clinic recommended I file a safety report and also contact Ford.

- Bangor, PA, USA

The contact owns a 2015 Ford F-150. The contact stated that while driving at various speeds, the transmission was slipping while downshifting from 5th to 4th gear while attempting to slow down, causing the rear tires to lock up momentarily. Additionally, the front differential made an abnormal sound. There was no warning light illuminated. The vehicle was taken to a local dealer, where the vehicle was diagnosed, and the contact was advised that the forward clutch and the transmission were faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 128,350.

- Bloomery, WV, USA

Transmission constantly shifts erratically. When this happens, the transmission gets stuck between 3rd and 5th gears and sometimes only stays in 5th gear, no matter how fast the truck is going or even if it is not moving. About half the time when this happens it causes a rough "jerk" and could cause loss of control. If you must stop at a stop sign or stop light when this happens then you're impeding traffic just trying to get back up to speed after your stop, which could lead to an accident. This also causes the check engine light to come on.

- Selma, NC, USA

Today, [XXX] while driving at highway speed this vehicle experienced a unrequested transmission downshift, from 6th to 3rd, causing unexpected rapid vehicle deceleration. I was located in the center lane of an Interstate and travelling at 70 mph when this incident happen which force the traffic behind me to take rapid accident avoidance actions. I did not hear any audible or see any visual warnings that this incident was about to happen. This vehicle will be taken to Starling Ford located at 3000 Cheney Hwy, Titusville, Fl 32780 on June 16, 2025. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Christmas, FL, USA