2015 Ford F-150: harsh or hard shifting

Filed Oct 6, 2026 · Fuel system, Transmission · 249,948 miles · AL

The contact owns a 2015 Ford F-150. The contact stated that the vehicle was taken to the dealer, where a software update was performed under the federal safety agency Campaign Number: 26V237000 (Power Train); however, following the recall repair, the fuel economy was reduced and the transmission experienced intermittent hard shifting. The vehicle was taken back to the dealer, where the contact was informed that the vehicle needed a tune-up and spark plug replacements; however, the spark plugs had been recently replaced. The failure mileage was approximately 249,948.

Filed Sep 25, 2026 · MS

My Ford F-150 had recall 26S28 performed by J Allen Ford through mobile service at my home. Before the recall, my truck was operating normally with NO transmission issues—no skipped shifts, hard shifts, unexpected downshifting, warning lights, or other symptoms. I arrived home 10–30 minutes before the technician and the recall was completed at my home. Approximately 1–2 hours later, I drove to the store and the truck immediately began skipping shifts, downshifting unexpectedly, and having hard/harsh shifts. None of these problems existed before the recall. The truck was then towed to J Allen Ford. They checked for codes, inspected the engine, and tested the transmission. They stated there were no lead-frame codes and said they believed the problem was internal to the transmission. The truck has now been at J Allen Ford for over a month. Both J Allen Ford and I contacted Ford Motor Company. I reached a Ford department that could potentially assist, and they also contacted J Allen Ford. I was told the recall department would not assist because there were no lead-frame codes. J Allen Ford also stated Ford would not provide financial assistance because of the truck's age. I understand that I cannot personally determine what caused the transmission failure. However, the timing is extremely concerning: my truck had no transmission symptoms before the recall and developed serious transmission problems within 1–2 hours afterward. **I am asking Ford Motor Company to help resolve this issue and repair my vehicle. I should not be left responsible for the cost of repairing a major transmission problem that did not exist before Ford's recall service was performed. I need Ford to investigate what happened and provide assistance in getting my truck repaired and safely back on the road.**

Filed Sep 12, 2026 · Acceleration, Electrical · WA

My 2015 Ford F-150 experienced multiple sudden downshifts at highway speeds 75 mph and then started downshifting at lower speeds. Heavy clunking heard and wrench warning lamp came on with a very general warning message and turned both off after moving to the side of the highway and restarting the car. Warning sign returned while driving at significantly lower speeds on city streets, locked up tires when turning from a low speed twice. Extremely unsafe and could have caused a serious accident if people were following close behind me. Took it to the dealership to get repaired and they diagnosed DTC P0722 (Output Shaft Speed Sensor - No Signal) and confirmed that the signal failure caused the transmission to lock in 3rd gear and operate at maximum line pressure. Technician notes it resulted in damage to forward, direct, and overdrive clutches and recommended the replacement of the entire transmission ($5,739 for parts). I paid $8,636.93 out-of-pocket at a Ford dealership for this service repair.

Filed Sep 9, 2026 · Transmission · OK

In September 2025 my 2015 F-150 did a hard downshift at speed. I took it in and they replaced the transmission lead frame, charging me $2,500. Since that time it has shifted hard from 1st to 2nd and 5th to 6th. In July, 2026, I received Ford Safety Recall 26S28, addressing the exact downshifting defect I paid to fix. I brought the truck in for the prescribed software remedy, in August, 2026 but the harsh shifting remained so i took it back on September 3rd, 2026 at which time they replace the valve body or lead frame and road tested it; the hard 1st to 2nd and 5th to 6th remained and the told me the transmission is "broke" and would require the entire transmission be replaced for ~$8,400. I reported this to Ford Motor Company Customer Satisfaction and it was escalated, case # CXH-09263554-W5R5T3, but was just told that "...there are no programs available to provide assistance with the repairs."

Filed Aug 31, 2026 · Transmission · WI

After receiving Recall#26S28/the federal safety agency Rcall#26V237, I made appointment for the transmission module remedy upgrade.After getting upgrade, I didn't go a mile when it stuck in 3rd gear and wrench light came on..I took truck back to Ford garage and had to leave it there.A few days later I picked truck up and made it about 5 miles.I took it back ,as they wanted to drive it and try to get correct codes to come up, but all it did was keep coming up as a different code that wasn't warranted...We had a rejection from Ford on a conference call between Ford,Ford garage, and myself...they would only replace "lead frame"if the down shifting code came up...well, they already upgraded that but will not replace "lead frame" that shows a bad realy molded on it...I have truck back after 2 weeks sitting at their shop, but cannot drive it .When I take off from a stop it will do a hard shift into 3rd, wrench light and tranny fan comes on and I have to find a spot to pull over as it will not shift higher.Once shut off, I can restart and continue, but it usually does it several times before I can continue and shifting returns to normal...Recall from Ford shows if software upgrade doesn't rectify problem, they will replace "lead frame"- Ford garage wants me to drive it until code comes up that they need to warranty "lead frame", but its not safe to drive as it now has up-shifting problem.

Filed Aug 4, 2026 · Transmission · AR

Prior to this incident, the vehicle had no unusual noises, warning lights, or other indications of a drivetrain problem. On 06/18/2026, while driving under normal city driving conditions at approximately 45 mph, we suddenly began hearing a clunking noise coming from the vehicle. We did not know where the noise was coming from at the time, but because it was unusual and appeared to indicate a serious mechanical problem, we drove approximately three miles to our home. The vehicle was then transported on a trailer to a Ford dealership for inspection. The Ford dealership diagnosed a failure of the rear differential/rear axle assembly. According to the dealership's diagnosis, the rear differential bearings had failed, the ring and pinion gears were making noise and required replacement, and the driver-side carrier bearing had come apart, damaging the rear axle housing. The dealership recommended replacement of the rear axle housing and related differential components. I contacted Ford Motor Company and requested goodwill assistance regarding this failure. My request was documented under Case # CXH-08638079-H7C5F4; however, Ford denied the goodwill assistance request. I have photographs documenting the condition of the failed components and can provide those photographs if requested. I am concerned that a sudden failure of a major drivetrain component without prior warning could create a safety risk by causing a loss of vehicle mobility, unexpected vehicle behavior, or leaving occupants stranded in traffic or another unsafe location. I am submitting this complaint so the federal safety agency can document the failure and determine whether similar incidents have occurred with 2015 Ford F-150 vehicles.

Filed Jul 30, 2026 · Transmission · 179,000 miles · IN

The contact owns a 2015 Ford F-150. The contact stated that while the accelerator pedal was depressed, there was an abnormal clunking sound coming from the engine. The vehicle was taken to the dealer to be repaired under the federal safety agency Campaign Number: 26V237000 (Power Train); but the failure persisted. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure but referred the contact back to the dealer for the recall repair. The failure mileage was approximately 179,000.

Filed Jul 8, 2026 · Acceleration, Transmission · LA

On Thursday, XXX, at approximately 5:10 AM, I was driving my Ford F-150 XLT (VIN: [XXX]) eastbound on [XXX]. While exiting the elevated bridge at the intersection of [XXX] and [XXX] at 55 mph (6th gear), the vehicle experienced a sudden, uncommanded transmission downshift directly from 6th to 1st gear. This caused immediate extreme deceleration, engine over-speed, and locked the rear tires, causing tire slippage and an absolute loss of traction control on a high-speed highway. This severe event put my life and my wife's life in imminent danger of catastrophic injury. After safely pulling over, the Malfunction Indicator Light (Check Engine) and the Powertrain Fault Warning Light (wrench icon) illuminated. The electronic cluster froze and failed to display the gear position. Drive (D) mode was completely unresponsive. I managed to vacate the active roadway using Manual (M) mode. While driving in 4th gear in manual mode under extreme caution, a second violent, unintended downshift to 1st gear unexpectedly occurred, confirming the persistent, dangerous nature of this failure. Consequential mechanical damage includes severe transmission clunking noises during gear engagement and a constant internal metallic knocking sound from the engine block caused by the forced over-speed. This failure perfectly matches the technical failure mode described in the federal safety agency Safety Recall Campaign 26V237 (OSS to PCM signal loss). On XXX, at 11:10 AM, I personally visited Arceneaux Ford Inc. (Authorized Dealership in [XXX]) to report this safety defect, open a service case, and request a safe vehicle inspection and loaner. The dealership explicitly refused to open a case or take action, stating that "Ford Motor Company does not currently have an engineered solution for this problem," leaving me stranded with an unroadworthy, highly hazardous vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 1, 2026 · Transmission · AZ

Hard Shifting, will enter limp mode in 2nd and 4th gear (usually will down shift to that gear). The check engine light will flash and I have to pull over, stop, shut off my vehicle and then restart it to resolve. I have already spent roughly $4,000 in repairs and still have continued issues. These issues started at approximately 100,000 miles, transmission was rebuilt at 110,000. The current mileage is 139,400.

Filed Mar 31, 2026 · Transmission · OH

Transmission will down shift randomly or not even engage when trying to accelerate. It shudders or harshly shifts.

Filed Feb 11, 2026 · Electrical, Transmission · MO

Experiencing sudden hard shifting with the 6r80 transmission. Have had wheels lock up once. Issues with the lead frame as well

Filed Feb 11, 2026 · Transmission · FL

Hard clunk from first to second shift. The wrench light comes on, telling you to check the manual. Vehicle stays in 3rd gear. Will not shift into 6th gear. Will not downshift into 2nd or 1st gear. stays in 3rd gear at a dead stop. The problem was independently reproduced.