2015 Ford F-150 Powertrain (other) Problems

The contact owns a 2015 Ford F-150. The contact stated that the vehicle was serviced under NHTSA Campaign Number: 26V237000 (Power Train); but a failure occurred. The vehicle unexpectedly decelerated abruptly with a related warning light illuminated. The dealer was contacted. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was unknown.

NHTSA ID

11756179

Incident

Aug 5, 2026

The contact owns a 2015 Ford F-150. The contact stated that while driving at an undisclosed speed, the transmission unexpectedly downshifted. In addition, the power train warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The failure was persistent. The contact stated that the failure had occurred immediately after being repaired under NHTSA Campaign Number: 26V369000 (Power Train). The manufacturer was not made aware of the failure. The failure mileage was approximately 105,000.

NHTSA ID

11755862

Incident

Jul 10, 2026

Mileage

105,000 mi

Underwent Ford safety recall 26S28 on 7/27. After safety recall, check engine light remained on. Mobile service returned on 7/29, and tech stated that "engine relearn process" was not completed. He stated that he completed the recall. One hour later (next time I drove the truck) while going over 70 mph on the interstate, truck shifted down and revolutions shot up. Loud bang from under the truck. Had 3 of my young children in my truck at the time.

NHTSA ID

11755569

Incident

Jul 29, 2026

The contact owns a 2015 Ford F-150. The contact stated that while driving 60 MPH, the transmission unexpectedly downshifted to a lower gear, causing the vehicle to abruptly decelerate. The contact associated the failure with NHTSA Campaign Number: 26V237000 (Power Train); however, the VIN was not associated with the recall. The dealer was contacted and offered a software update as the repair. The contact stated that after the software update, the failure worsened. The dealer stated that if the wrench warning light was not illuminated, the manufacturer would not pay for the repair. The manufacturer was made aware of the failure. The failure mileage was approximately 183,000.

NHTSA ID

11755551

Incident

Aug 7, 2026

Mileage

183,000 mi

The contact owns a 2015 Ford F-150. The contact stated that while driving at various speeds on several occasions, the transmission unexpectedly downshifted and the powertrain warning light illuminated. The vehicle was taken to a dealer where it was diagnosed that there was a failure with the leadframe. The vehicle was not repaired. The contact stated that two months later, the contact became aware that the VIN was included in NHTSA Campaign Number: 26V237000 (Power Train). The vehicle was taken to another dealer, and it was determined that a software update was needed. The vehicle was repaired when the remedy became available, but the failure reoccurred. The vehicle was taken back to the dealer, where the diagnostic result was unknown. The contact stated that the leadframe might possibly be replaced, but there was no indication that the leadframe needed to be replaced. The manufacturer was notified of the failure. The failure mileage was unknown.

NHTSA ID

11755004

Incident

Mar 30, 2026

While driving (end of June 2026) at 55 mph, my truck downshifted and slowed immediately cause the tires to lose traction before shifting back and regaining control. My truck was brought to a local shop as it was unsafe to drive. The shop said the lead frame needed to be replaced and we did. I then received recall information for NHTSA recall 26V237. I attempted to be reimbursed for the lead frame replacement, but was declined due to using a third party shop before i had info on the recall.

NHTSA ID

11754937

Incident

Jun 30, 2026

The contact's son owns a 2015 Ford F-150. The contact stated that while his son was driving 15 MPH, the transmission unexpectedly downshifted to 1st gear, causing the rear wheels to lock up and the vehicle to skid toward the side of the road. The vehicle failed to restart and was towed to the contact's workplace. The vehicle was towed to a transmission specialist, where the failure was associated with NHTSA Campaign Number: 26V237000 (Power Train); and metal shavings were found inside the transmission oil pan. The vehicle was towed back to the workplace. The dealer was contacted and informed that the recall did not cover any collateral damage. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 100,000.

NHTSA ID

11754809

Incident

May 4, 2026

Mileage

100,000 mi

The contact owns a 2015 Ford F-150. The contact stated that while driving approximately 65 MPH, the transmission unexpectedly downshifted from 5th gear to 2nd gear with the WRENCH icon displayed. The vehicle was taken to the local dealer and was repaired under NHTSA Campaign Number: 26V237000 (POWER TRAIN). After the software update was performed, the vehicle continued to intermittently experienced an unexpected downshifting and upshifting. The vehicle was taken back to the dealer who diagnosed that lead frame module needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 85,000.

NHTSA ID

11754795

Incident

May 24, 2026

Mileage

85,000 mi

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 NHTSA can document the failure and determine whether similar incidents have occurred with 2015 Ford F-150 vehicles.

NHTSA ID

11754704

Incident

Jun 18, 2026

The timing belt/chain is failing on F-150 trucks and multiple people have sent in issues. i think from 2015-2018. It looks like you are already looking at other Fords with same issue. what i was told is that there could be sudden stalling: If the timing is thrown off or the chain snaps, the engine cuts out instantly. Losing power steering and engine power while driving in traffic creates an immediate crash hazard. Severe Misfires and Power Loss: A slipping chain causes rough idling, violent shaking, and an inability to accelerate which happened to the truck. Due to this i had to get mine fixed in June of 2024 i have attached the invoices. I tried to upload invoice but said there was an error

NHTSA ID

11754650

Incident

Jun 20, 2024

The contact owns a 2015 Ford F-150. The contact stated that while driving at an undisclosed speed, the transmission unexpectedly downshifted. The transmission warning light was illuminated. The contact used a fluid cleaner, and the light turned off. The contact received notification of NHTSA Campaign Number: 26V237000 (Power Train). The contact called the local dealer, and it was confirmed that the part was on back order. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 153,000.

NHTSA ID

11754544

Incident

Oct 1, 2025

Mileage

153,000 mi

My vehicle experiences total loss of the instrument cluster PRNDL gear display, an active Wrench Light, and unexpected shifts into Limp-Home Mode while driving in traffic, creating a severe crash hazard from trailing vehicles. An OBD-II scan confirmed permanent fault codes P0715 (Input/Turbine Speed Sensor Circuit Malfunction) and P0717 (Input/Turbine Speed Sensor No Signal). West Herr Ford of Amherst (NY) inspected the vehicle on July 25, 2026. REASON FOR COMPLAINT / REMEDY INADEQUACY: #1 Software vs. Hardware: Recall 26S28 uses a PCM software reflash to alter computer logic during signal drops. This software reflash does NOT fix the underlying physical breakdown of the 6R80 molded lead frame assembly. Thermal cycling and vibration continue to degrade internal wiring, causing active driving failures after the recall update. #2 Omission of Known Codes (P0715/P0717): The Turbine Speed Sensor (TSS) and Output Speed Sensor (OSS) are physically integrated inside the EXACT same plastic molded lead frame. However, dealers refuse to cover part replacement under 26S28 for P0715/P0717 because they are omitted from the recall's automated approval list, forcing out-of-pocket costs exceeding $1,200 for a known manufacturing defect. REQUESTED ACTION: I request NHTSA require Ford to expand 26S28 hardware replacement authorization to explicitly include lead-frame-integrated codes P0715 and P0717, and mandate physical lead frame replacements for all vehicles exhibiting active sensor circuit failures.

NHTSA ID

11753911

Incident

Jul 25, 2026

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 NHTSA 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.

NHTSA ID

11753724

Incident

Jul 29, 2026

Mileage

179,000 mi

The contact owned a 2015 Ford F-150. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power while approaching a stop. The contact depressed the brake pedal; however, the vehicle unintendedly accelerated and crashed into a Chevrolet Tahoe. The wrench symbol warning light was illuminated. There were no reported injuries. The air bags deployed as intended. A Police report was filed. The vehicle was towed to a tow lot. The insurance company towed the vehicle to the total loss yard, where the vehicle was deemed a total loss. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 310,000. The VIN was not available.

NHTSA ID

11753426

Incident

Jun 22, 2026

Mileage

310,000 mi

The contact owns a 2015 Ford F-150. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate. The contact stated that the transmission had seized in first gear. The contact received notification of NHTSA Campaign Number: 26V237000 (Power Train). The vehicle was taken to the dealer. The contact stated that the failure had occurred after the recall repair was completed on July 23, 2026. The failure occurred while leaving the dealer. The vehicle was left at the dealer. The contact was informed that the ECM was not communicating with the transmission. The contact was informed that no failure codes were displayed. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that the failure was not present prior to the completion of the recall repair. The manufacturer was made aware of the failure, and a case was filed. The contact was informed that the repair was not covered under the recall. The failure mileage was approximately 205,000.

NHTSA ID

11753263

Incident

Jul 23, 2026

Mileage

205,000 mi

I am submitting this complaint regarding Ford Recall 26S28 (NHTSA Recall 26V237). My truck exhibited the dangerous unintended downshift condition described in this recall for several weeks before the repair remedy became available. A few weeks weeks before April 27, 2026, the truck began unexpectedly downshifting from approximately 5th or 6th gear into a much lower gear while driving. Each event caused the truck to enter limp mode, illuminate the wrench light, display multiple warning lights, and shake violently. I had to pull off the road, shut the truck off, wait several minutes, and restart it before it would drive normally again. I immediately reported these incidents to Mike White Ford and was repeatedly told to monitor the vehicle because no recall remedy was available. I reported the issue again during an oil change on April 27, 2026. Driving home from that appointment (9 miles), the truck experienced two more unintended downshifts. We immediately called the dealership and were again told to continue monitoring it. The condition progressively worsened over the next several weeks. On May 31, 2026, the truck experienced six unintended downshifts in one day. After the final event, it became difficult to restart and the check engine light illuminated. By my June 8 appointment, the truck was stuck in permanent limp mode and had to be towed to the dealership. The service manager stated it was "unsafe to drive" and provided a loaner vehicle. The truck later stored DTC P0219 (Engine Overspeed) and P2112 (Throttle Actuator Control System-Stuck Closed). I estimate the unintended downshift occurred approximately 75 times before the truck became inoperable. I opened Ford case CXH08666656S0W4Q2 on July 21, 2026. I respectfully request that NHTSA review whether prolonged operation with this known recall condition, while owners awaited a repair remedy, may contribute to additional vehicle failures and increased safety risks.

NHTSA ID

11753108

Incident

Apr 13, 2026

Vehicle suffered a violent, un-commanded highway-speed downshift due to NHTSA Campaign 26V237000 / Ford Recall 26S28. The tachometer was redlined during the incident. The mechanical overspeed immediately damaged the engine's cam phasers. Eide Ford in Mandan, ND, applied the recall software patch after the structural failure already occurred, cleared the diagnostic trouble codes without providing a copy to the owner, and is refusing to replace the lead frame or cover the resulting valve train damage, demanding $7,200 out-of-pocket.

NHTSA ID

11752990

Incident

Jul 11, 2026

See attached document for complaint.

NHTSA ID

11752092

Incident

Jun 4, 2026

Took my 2015 Ford F150 XLT 4X4 to Peoria Ford for safety recall, they requested 30000 mile maintenance. I agreed. Upon picking up vehicle service advisor informs me engine light was on, it was safe bring it back when I have more time. They had my vehicle from July 13, 915am till that July 15, 545pm, closing at 6pm. On the way home almost had an accident,truck still shifting down bad and powertrain light came on. Made it home tried calling, they were closed. Reported incident to BBB and Attornet General.

NHTSA ID

11751754

Incident

Jul 15, 2026

My local Ford Dealer (Tallahassee Ford) which I had just purchased the vehicle from two weeks prior. Refused to repair NHTSA Recall Number26V237 they wanted to charge me over 2000 dollars to fix even though it has a recall. I ended up getting the lead frame replaced at a local transmission shop for little over 1000 dollars. I would like to be reimbursed for the money and time I spent.

NHTSA ID

11751736

Incident

Jun 9, 2026

I have a 2015 F-150. Early January 2026 I was traveling about 60 mph when my back wheels locked up, while the vehicle was skidding i swiped a guardrail but was able to pull the steering away as to not cause more damage. The damage is minor mostly cosmetic, and the truck was still running and drivable, without knowing the cause I just resumed. Then in March 2026 going about 60mph the transmission downshifted to 2nd gear, the RPM's went from 1,500 to 6,000 in an instant. There was a transmission warning light and the engine would not accelerate. I pulled over shut the truck off and restarted. It was fine after that. Then I received a letter telling me about this recall. Looking it up today on Ford's website it says Campaign 26S28/26V237 there is a recall with a solution for my VIN. However is there a way to be compensated for the cosmetic damage to the side of the truck considering this could have been a much more deadlier situation? Is this even worth pursuing the cosmetic damage, that and the wheel realignment cost.

NHTSA ID

11751402

Incident

Jan 12, 2026

I was driving on the highway at 70mph when the truck started jerking and downshifting from 6th gear to 1st gear erratically. I pulled off the highway and the gears continued shifting all over the place and then the wrench light see manual warning came on and the truck stopped completely. I had it towed to the dealership who said they would complete the fix for the recall but that the transmission cooler line also needed fixed which would cost $1226.00. They said I probably ran over something, which I did not. I believe the sudden and violent downshifting which is the recall caused this to break and should be included. This was a terrifying situation where I was almost in a car accident. The truck is not drivable and I have also had to pay for two tows now because this is also not covered in the recall.

NHTSA ID

11750296

Incident

Jul 11, 2026

Recall 26V237 / Ford 26S28** Vehicle 2015 Ford F 150 VIN: [XXX] Recall Reference NHTSA Recall: 26V237 Ford Recall: 26S28 Summary of Active Safety Defect My vehicle is experiencing the exact defect described in Recall 26V237. I have had two unintended downshifts within the past two weeks while traveling at approximately 35–40 mph. Each event caused abrupt deceleration and temporary rear wheel traction loss. Events • Two unintended downshifts in two weeks • Speeds ~35–40 mph • Abrupt wheel speed reduction and rear wheel slide • “Check Engine” light illuminated • Powertrain warning indicators present Diagnostic Findings My independent mechanic retrieved three powertrain related error codes. He confirmed the codes and symptoms match the recall condition. Ford and Dealer Response My servicing dealer in [XXX] stated the software remedy will not be available until XXX. Ford Customer Service confirmed the same and additionally stated that no loaner vehicle or rental reimbursement is available, even though the defect is active and recurring. Safety Concern The recall notice states this defect “may result in a loss of vehicle control, increasing the risk of a crash.” Because the defect has already occurred twice at moderate speeds, I am concerned about the risk of recurrence at highway speeds. Impact of Remedy Delay With the remedy unavailable until mid 2026 and Ford offering no interim transportation support, I have determined that the vehicle is unsafe to operate. I have parked the truck to avoid the risk of a crash. Reason for Reporting to NHTSA I am filing this complaint because: • The defect is actively occurring • The recall remedy is delayed • Ford is providing no interim transportation assistance • I have had to park the vehicle for safety • I want this documented in case broader action or guidance is needed I request NHTSA review this case and determine whether additional oversight or interim safety guidance is appropriate. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(

NHTSA ID

11750032

Incident

May 15, 2026

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 NHTSA 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)

NHTSA ID

11749122

Incident

Jul 2, 2026

The contact owns a 2015 Ford F-150. The contact stated that while driving at an undisclosed speed uphill, the accelerator pedal was depressed, but the vehicle failed to accelerate as intended. No warning lights were illuminated. The contact stated that the transmission was operating at a high speed, but the vehicle operated at a low speed. Within seconds, the speed independently increased, and the vehicle became uncontrollable. The vehicle rolled backward into an embankment and then into a concrete-lined ditch, bouncing out the other side. In addition, the contact noticed smoke coming from the tailpipe. The vehicle was driven to a nearby friend's residence. A police report was filed. The contact was taken to a local medical center, having sustained a bruised forehead, a bruised left ankle, and a bruised left knee. The contact was receiving continued treatment for the left ankle and left knee injuries. The insurance company did not inspect the vehicle, and the contact stated that the vehicle was only covered under liability insurance. The contact received a recall notification for NHTSA Campaign Number: 26V237000 (Power Train); however, the parts were unavailable. The manufacturer was not made aware of the failure. The failure mileage was approximately 183,115

NHTSA ID

11748505

Incident

Jul 1, 2026

Mileage

183,115 mi