The contact owns a 2015 Ford F-150. The contact stated while driving at an undisclosed speed, the transmission independently shifted. The contact stated that the failure occurred when approaching a stop sign. The contact stated that the transmission shifted from first gear to fifth gear. No warning lights were illuminated. In addition, the contact stated that the failure occurred only when the outside temperature was 50 degrees or below. The contact parked the vehicle and turned the vehicle off. The contact stated while attempting to start the vehicle, the vehicle started. The transmission independently reset. The vehicle was taken to a independent mechanic where it was diagnosed with a failed lead frame. The contact was informed that the lead frame needed to be replaced. The vehicle was not repaired. The dealer was made aware of the failure. The contact was advised that the transmission needed to be replaced. The contact received a recall notification, the federal safety agency Campaign Number: 26V237000 (Power Train) however the parts were unavailable. The manufacturer was not made aware of the failure. The failure mileage was approximately 120,000.
2015 Ford F-150 transmission complaints
Page 6 of 16: complaints 131 to 160 of 441, newest first, as owners wrote them.
The contact owns a 2015 Ford F150. The contact received notification of the federal safety agency Campaign Number: 26V237000 (POWER TRAIN). The contact stated that while driving at an undisclosed speed on the highway, the vehicle unexpectedly downshifted to a lower gear, and an abnormally loud noise was heard from the vehicle. In addition, the vehicle failed to accelerate as intended and was rear-ended from behind. No injuries were reported. No police report was file. The engine revved up; the rear tires made an abnormal grinding noise. The contact was able to pull to the side of the road. The powertrain warning light and lamp wrench warning light were illuminated. The contact stated that when the vehicle was started, the engine revved up, and the vehicle failed to accelerate past 35 MPH. The other driver assisted the contact and helped tow the vehicle back to the residence. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The vehicle remained in the residence unrepaired and had not been driven since. The manufacturer was not notified of the failure. The failure mileage was approximately 144,000.
The contact owns a 2015 Ford F-150. The contact stated while driving at an undisclosed speed, the transmission independently shifted from sixth gear to fourth gear. In addition, the contact stated that an unknown warning light illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The contact received a recall notification, the federal safety agency Campaign Number: 26V237000 (Power Train) however the parts were unavailable. The manufacturer was not made aware of the failure. The failure mileage was approximately 112,900.
The contact owns a 2015 FORD F-150. The contact stated while driving on the highway at an undisclosed speed, the contact stated he noticed a maintenance waring light illuminate on the dash and a check engine light. The contact stated he pulled over to the side the road, suddenly the vehicle lost control while going 65 MPH and stated that the rear wheels locked up and made the vehicle fully turn almost causing a Collison with a Semi, the contact was able to recover and pulled the vehicle off to the side. the contact had a code scanner and erased the code he had due to a ford feature not allowing the vehicle to operate without code. The vehicle was towed to dealer where it was diagnosed to be the federal safety agency Campaign Number: 26V237000 (POWER TRAIN) however, the part to do the recall repair was not yet available. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 134,000.
The contact owns a 2015 Ford F150. The contact received notification of the federal safety agency Campaign Number: 26V237000 (POWERTRAIN). However, the part to do the recall repair was not yet available. The contact stated that after the vehicle was stopped at a traffic signal light or stop sign and the accelerator pedal was depressed, the vehicle failed to accelerate as intended while depressing the accelerator pedal. No warning lights illuminated. The contact stated that the vehicle felt sluggish while on first, second, and third gears. Once the vehicle hit fourth gear, the vehicle would function as intended. The failure occurred every time the vehicle stopped. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was approximately 130,000.
I haven’t been in an incident yet with this recall. But I contacted ford today to let them know my truck shifted down to 3rd gear from 5th gear. I informed them that when I entered my vin on the ford web site that my truck came up for a recall and that I contacted a local ford dealer and they said they couldn’t do anything for me because the remedy wouldn’t be out till July 1. My truck is showing a wrench symbol after it shifted down and then it disappears. I told for this is my only transportation vehicle and that I can’t just go buy a new one. They said they aren’t releasing anymore information at the time and they aren’t offering rental vehicles to people with this problem but they aren’t telling people to not drive their vehicles either. I said what happens if I continue to drive my vehicle and it causes me to wreck. They said they couldn’t give me any information.
While accelerating on a green light, vehicle shifted down to a crawl. Truck had an abrupt reduction in speed and was difficult to get vehicle to a safe place to stop. Traffic was heavy and dangerous, trying to get truck off roadway was very difficult. I had to park in a no parking zone to allow traffic to continue. The wrench warning lamp symbol did come on, and warning hill climbing is not possible. The roadway was flat, straight with no incline at all, and clear for easy traffic movement. It was sunny afternoon. I shut truck off and checked underneath vehicle. After 10 minutes, I restarted vehicle and warning lamp was off and truck operated properly.
The contact owns a 2015 Ford F-150. The contact stated that while driving on the highway at an undisclosed speed, the transmission unexpectedly downshifted. The vehicle was taken to the dealer; however, the failure could not be to duplicated. The vehicle was not repaired. The manufacturer was notified of the failure. The contact related the failure to the federal safety agency Campaign Number: 26V237000 (Power Train). The approximate failure mileage was 101,313.
Transmission downshifts from 6th to 3rd gear . It’s has recently done it it about 4 times on the road.
My drive shaft snapped off of my differential while driving on I-20 at 70mph causing me to lose all ability to accelerate. My differential gears broke now my truck is unable to drive safely
The contact owns a 2015 Ford F-150. The contact stated that while driving at an undisclosed speed, the vehicle unexpectedly downshifted from third gear to first gear. The vehicle was not diagnosed of repaired. The manufacturer was not notified of the failure. The contact related the failure to the federal safety agency Campaign Number: 26V237000 (Power Train). The approximate failure mileage was 152,900.
Vehicle downshifting hard intermittent problem during highway and local/city driving.
Transmission shift randomly into second gear.
Transmission downshifts on its own while driving from sixth gear to fifth and won't go back into sixth or lower than 3rd when at a complete stop.
Random, sometime months between issues, transmission and vehicle goes into limp mode. Output speed shaft sensor failure codes. This is a problem with the lead frame connector failure in the transmission (6R80 six speed). This is a common problem and should be a recall.
GOES INTO LIMP MODE. Transmission shifts hard, slips, locks up. I've been having this issue for 2 years. Transmission seems to shift twice in 3rd and 5th gears, there's a jult then goes to limp mode, no excelleration. After a minute or so, it's stuck in 3rd or 5th gear. Wrench light appears. I have been pulling over, ( when it is safe ) plugging in my scanner, then erasing codes. P0755, P0740, P0741. This has been a temporary fix. I've had the valve body replaced 3 times, with the lead frame. And recalibrate to the ECM. Still having the same issues.
While driving at night a random engine light came on as well as the wrench light came on. Truck downshift and gets stuck at 3rd gear
I was driving and came to a stop at a light, let off the brake and then my truck came up with a wrench light and wouldn’t read the transmission gear, cab tool pulled these codes u0402, p0706, p0707, p1702, p1921 all pointing at towards the 6R80 transmission for this lead frame/sensor failure. It will work after the truck sits off for a little while but once you start driving for a few miles it goes back into limp mode. I’ve seen you are looking into this as a recall an would love to see others get help with this issue before it’s to late like me now unfortunately
Molded lead frame sudden downshifts to first third or fifth gear would have to pull over to the side of the road/highway and shut the truck off and restart it to get it to go away it went from happening every 50-75 miles to the point where it would happen every 1-5 miles or less when it would down shift to first gear it would lock the rear wheels and almost caused me to get in multiple accidents happened right after I bought the truck 1/27/26 all the way until 3/02/26 when I was forced to get it fixed so I could drive the truck properly
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.
Transmission will down shift randomly or not even engage when trying to accelerate. It shudders or harshly shifts.
"My 2015 Ford F-150 is experiencing an intermittent, complete loss of the Output Shaft Speed (OSS) signal within the 6R80 transmission lead frame. While driving at speed, the speedometer suddenly drops to zero, the 'wrench' light illuminates, and the vehicle performs an unintended, harsh downshift into a lower gear (Limp Mode/3rd gear). This creates an immediate safety hazard of rear-wheel lockup or a sudden loss of acceleration in traffic. i took my vehicle to a local repair shop where they could not duplicate the fault. i then called my local ford dealer who informed me unless it would duplicate the fault or show a code they could not repair the vehicle due to it being against warranty policy.
Vehicle unexpectedly down shifting while driving causing vechile to jerk. After parking truck, truck presents a no start condition and unlit gear selector lights. While driving truck will go in and out of limp mode. I have scheduled a appointment to bring the truck in for a diagnostic test 03/31/2026.
Noticeably rough transitions between gears, particularly in the 3-4 and 4-5 shift ranges. sometimes a jerking sensation before shifting gears, not consistent. took vehicle to transmission shop. they found nothing mechanically wrong with transmission.
Lead frame failure in transmission. Causing vehicle to be inoperable and towed to dealer. Very expensive repair. Contacted Ford directly due to large reports online of failure and previous years being covered. Ford declined to do anything.
Transmission slipping and bangs into and out of gears downshifts without doing anything when transmission services there was lots of metal fragments on the magnet2 no change and after having transmission reprogrammed no change
The contact owns a 2015 Ford F-150. The contact stated that while driving at 30 MPH, the transmission unexpectedly downshifted to first gear. The contact stated that occasionally the transmission unexpectedly upshifted to 3rd gear and seized. The contact stated that the failure was intermittent but became a recurring failure. The contact stated that the WRENCH symbol was intermittently illuminated. The contact had taken the vehicle to an independent mechanic, who diagnosed the vehicle and determined that the molded leadframe on the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 131,000.
While driving on the highway at approximately 70 mph, the vehicle unexpectedly downshifted without any prior warning or indication of an issue. This sudden loss of speed created a hazardous situation, as the vehicle travelling behind me was forced to swerve quickly to avoid a rear-end collision. Immediately following this, the check engine light illuminated. From that point forward, the transmission would not shift below 3rd gear for the remainder of my commute. This significantly impacted the drivability of the vehicle and made continued driving concerning, particularly in traffic conditions. After arriving at my work, I retrieved the diagnostic trouble code, which was identified as P0721 (Output Shaft Speed Sensor). Notably, there were no prior warning signs, drivability issues, or alerts indicating a potentail failure before this incident occurred. Given the sudden and unpredictable nature of this event, especially at highway speeds, I am concerned about the safety implications of this issue. A failure of this kind, without warning, creates a substantial risk not only to the driver but also to surrounding traffic.
While driving at highway speed (60mph), the truck suddenly downshifted to 1st gear causing the rear wheels to lock up until the vehicle slowed to roughly 45mph. At the time of the incident, the truck was not loaded, not towing and weather conditions were cool and dry. Since that incident, the truck hunts for gears, shifts erratically and harshly and will occasionally get stuck in a random gear.
Driving at highway speeds, transmission shifts into 2nd gear. There is no transmission selection on dash. Shut truck off, now won't start. Truck finally started toke to my local shop and had it repaired.
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