general problems of the 2015 Ford F-150 - part 2

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

While operating on my daily commute at approximately 40-50 mph, the vehicle suddenly downshifted from 5th gear to 3rd, with no throttle input change. Following a commanded full stop of the vehicle, upon accelerating, the vehicle seemed to be slipping into each gear. A short duration later, the vehicle prompted me with an orange wrench symbol on the instrument panel and the phrase "see manual. " the vehicle would then only shift down as low as 3rd gear and appeared to be in a limp mode with no 1st or 2nd gear until shut off and restarted. I then took it to my local Ford dealer and had it diagnosed as a "p0722, pinpoint oss sensor failure. " it was repaired with a new lead frame on December 10th, 2025.

I own a 2015 Ford F-150 with approximately 175,000 miles. I have experienced intermittent hard shifting at low speeds for many years. During normal driving, the transmission occasionally shifts very harshly, producing a loud knocking noise and causing the truck to jerk unexpectedly. I do not recall the exact first occurrence, but the hard shifting has been happening since I have owned the truck. I never thought much of it until recently reading about a transmission investigation for similar F-150 models. In December 2025, I experienced a particularly severe hard shift. During this incident, the truck jerked extremely hard and the powertrain warning light momentarily illuminated. This felt unsafe and unexpected. I had the vehicle inspected by an independent mechanic, but no diagnostic trouble codes were found at the time of inspection. Despite this, the hard shifting continues to occur intermittently. This issue is a safety concern due to the sudden and harsh movement of the vehicle without warning.

After a Ford recall on software update for transmission, the transmission is now starting to fail and downshift for no apparent reason, causing the rears wheels to lock up.

On [xxx], I was driving the vehicle and accelerating onto the [xxx] freeway from an on-ramp in northern phoenix, arizona. During acceleration, the truck suddenly and violently downshifted, producing an abrupt jerking motion that forcibly displaced the vehicle out of the accelerating gear and into a lower gear without warning or driver input. The incident required us to exit the freeway and pull over. The event caused a momentary but pronounced loss of smooth propulsion at a critical merge point on to the freeway, creating an obvious risk of loss of control and collision with other motorists. The sudden lock-up and downshift, spike in rpms, and deceleration were entirely inconsistent with normal operation and were objectively dangerous under highway-speed conditions. My passenger and I were jerked forward into our seatbelts. After this incident, I had the vehicle's transmission checked at a small shop, which stated they did not find any codes or issues, but recommended a full transmission rebuild at a cost of several thousand dollars. Finding no diagnostic codes or issues, I continued using my truck until it unexpectedly failed the following month on a freeway. In December 2025, while I was exiting a freeway in mesa, arizona, the F-150’s 6r80 transmission downshifted again without being prompted, causing similar critical safety concerns. But this time the transmission was stuck in gear and was unsafe to operate on the highway or city streets. It had to be towed. A repair shop determined that the output speed sensor was found faulty at all times with diagnostic trouble codes of p720, p0722, and p2535, requiring complete replacement of the leadframe assembly. To the best of my knowledge and belief, this is consistent with other recalls that Ford has issued related to the failure of its 6r80 transmissions in F-150s and similar vehicles for years 2011-2014, which are known to Ford to have a risk of crashing due to the sudden downshifting concerns. Information redacted pursuant to the freedom of information act (foia).

The contact owns a 2015 Ford F-150. The contact stated that while driving at an undisclosed speed and attempting to accelerate, the vehicle shifted hard into gear. The contact also stated that the gear shift indicator displayed the incorrect gear. The vehicle returned to normal functionality, but the failure became a regular occurrence. The check engine warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The failure mileage was 180,000. The VIN was not available.

I have had 2 instances of my f150 downshifting at highway speeds to 2nd gear while driving. I was not towing a trailer, just driving normally in both cases on my daily commute to work. The first instance was resolved by coming to a stop, shifting to park, and shifting into drive again. The second instance, I released the accelerator completely, shifted the gear selector to neutral and back to drive while coasting and it seemed to correct. Neither have led to loss of control but it is startling and not a great thing for the longevity and safety of my vehicle. I see how it could become a problem. After instance number 1, I thought perhaps it was a fluke. I now have learned that there have been prior model years of this truck transmission that also have had issues and I am more concerned that this get resolved. I now plan to have vehicle looked at by a dealership in the near future. First incident was early September and second incident was oct. 20, 2025.

Intermittent noticeable harsh downshift in the lower gears. Not sure exactly what gears due to the intermittent nature of the symptoms. The symptoms are impossible to be replicated on demand. At this time no lights or fault codes have presented. The vehicle is used for personal light duty passenger transportation. It has been happening for about six months. The transmission oil filter and fluid were replaced 6 months ago. When the oil pan was down, it was inspected for excessive debris/sediment. In the opinion of a family technician was determined that no geartrain/clutch failure is present. The vehicle has 175k miles and it appears to be the original transmission. No other repair attempt has been made. Suspect the issue may be related to the component in the transmission called the lead frame.

When accelerating and decelerating the vehicle jerks and responds erratically. We had just had it at the dealership for its 80k mile maintenance. They did a transmission flush. We thought it was related but when we brought it back in, we were told that the mold leadframe would require replacing.

I was driving my 2015 Ford f150 and just pulled into the parking lot. The lights on the dash started going off (airbags, parking detectors, big wrench, etc), however the vehicle driving wasn't affected at that time. I immediately stopped and parked, when I returned to my vehicle it had full power, but wouldn't even attempt to start. I had no choice but to tow it to a nearby Ford dealership in grapevine, TX. It was ultimately diagnosed with a bad "transmission lead harness. " the dealership told me that this was a recall item on many f150s, but for some reason, not on mine. I researched this specific issue and found that 2011-2016 models of f150 were affected. It shows an investigation was opened for 2015 models as well. My question is why my specific vehicle is not under a recall. This could be a potentially dangerous issue, I'd think. So, right now I'm looking at a nearly $2000 bill to repair my vehicle when they get the parts in on Friday, 10/10/2025. I believe that if this is a recall on other with the same transmission lead harness, why is mine separated from that. I was given no warning other than the lights going off just before shutting of my truck, then it wouldn't start again. Thankfully I was in a populated area and not in the middle of nowhere. Please advise on any possible what I can get reimbursed for this issue.

10-11-25 transmission changed on its own from 6 gear going 63mph to first or second gear to 13mph (what I seen after realizing what happened) I already had it into Ford for sensor warnings before this and they couldn't find the problem. Now work is done and first gear is rough, and it still acts up towing a trailer. I take it back in on the 20th because I was not offered a rent a car or loaner and they think it's a clutch problem now. Ford will not help with repairs or take blame that this could have been a very bad situation if a semi was behind me. This is a known issue for 2015-2017 models.

The contact owns a 2015 Ford F-150. The contact stated that while driving approximately 50 mph, the transmission unexpectedly downshifted and the vehicle went into limp mode. The vehicle returned to normal operation. The failure had occurred on several occasions. The check engine warning light was illuminated. The vehicle was taken to a certified mechanic, where it was diagnosed that the output shaft sensor needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 200,000.

Transmission on my f150 suddenly dropped to a lower gear as I was pulling out on a highway which significantly lowered my acceleration. Luckily the oncoming traffic slowed until I could safely get across to my lane. Eventually it jumped back into the proper gear. From what I have found on the internet this seems to be a common defect. Only a matter of time before someone is seriously injured or killed. This is not the first time the transmission has done this. I took my f150 to the dealership to be checked and they didn’t find anything wrong. P0706 and p0707 codes.

Warning light wrench came on truck suddenly downshifted into low gear.

Our truck, on occasions, downshifts for no apparent reason. I haven't taken it anywhere yet to have it looked at, but it is an abnormal problem. I have purchased several f150's, but this has been the only one that does it. Ford need to address this problem.

I was driving my 2015 f150 with the 5. 0 liter engine and 6 speed transmission at approximately 60 mph in 6th gear when without warning the transmission downshifted into 1st gear causing a sudden deceleration causing my passengers and myself to be thrown forward being caught by our seatbelts. The transmission then worked its way back up the gears into 2nd and then 3rd and so on. I took the truck to a dealership (cooper Ford of edmond, oklahoma) and started to tell the service manager what happened and before I even got to the downshift part he told me right away what had happened and that I will need a new main control and lead frame. It cost me $2,766. 16 to have the vehicle repaired.

My pickup is a 2015 F-150 4wd supercrew (5. 0/6 speed auto). I was driving on an interstate and pulling a loaded flatbed trailer. The transmission was in the “towing” mode. While leaving a rest area my truck would not shift up from first gear. I turned the truck off and re-started it and it seemed to work for a short time, but as soon as I got back to speed on the interstate the pickup suddenly shifted into a lower gear. There was no warning at all. This made the truck's engine momentarily overspeed and I felt like I was going to crash because it went from high speed to low in a very short distance. Fortunately, I was wearing a seatbelt, there was light traffic, and the roadway was slightly wet from rain. After this incident I was able to slowly "limp" it off the interstate. It was taken to an independent transmission shop that said this was caused by a "lead frame" failure and that it was a known issue but Ford would only warranty it if it was a 2014 or older. They told me that the “speed sensor” is part of that component. They were able to repair it for me by replacing the "lead frame" - it did not appear to damage the engine or other parts of the transmission and the truck seems fine now. I do have a post warranty service contract, service contract agent said they do not specifically cover "shift plates" in their policy and it cost me over a thousand dollars out of my own pocket.

The transmission is intermittently down shifting.

Transmission randomly down shifts and then shifts back up a gear. Then speed control randomly drops and won’t respond.

The contact owns a 2015 Ford F-150. The contact stated that while driving at an undisclosed speed and accelerating, the transmission was shifting hard shift, causing the vehicle to jump before accelerating. The failure also occurred while reversing. The vehicle failed to immediately start, and several attempts were needed to start the vehicle. The contact occasionally cleared dtc: p1702 (transmission range sensor fault). During the failure, the vehicle went into limp mode. The failure was intermittent. The “wrench” warning light was intermittently illuminated. The failure became more persistent over time. The vehicle was taken to the dealer, but was not diagnosed because there were no codes displayed. The manufacturer was not made aware of the failure. The failure mileage was approximately 110,000.

Sudden limp mode — stuck in 1st/3rd/5th gear at highway speed. Dealer confirmed codes: p0720, p0722 major safety risk: loss of power/speed control as vehicle slams out of gear at speed without warning. Known issue with TSB 13-6-8 but issue continues in vehicles like mine post 2013.

Driving on a freeway at 70mph all the sudden engine reved up and warning lite with wrench ?? to see owners manual came on, transmission down shifted and truck felt like it has loss of power. While driving reduced acceleration removed foot of gass pedal, truck slowed down to 40mph warning lite disappear and was driving normally. Few months later the same warning lite came on and downshift happened again at 35mph, good thing it was not on busy street.

Erratic shifting. Code p0717. Down shift from 5th to 1st.

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

Truck started to get shifting gremlins. 4 instances of spontaneous shift out of gear or into lower gear below 35mph. Transmission then shifted to 3rd gear at 60 mph on interstate without warning. Gear and shift indicator on dash blinking wildly. Vehicle behind me had to make evasive maneuver to avoid collision as I moved to emergency lane. Online research said it was a bad lead frame in transmission. Took to local repair shop and confirmed bad lead frame. Replaced for $1200 and truck now shifts correctly.

While traveling down the highway and merging onto the interstate, if you excelerate just the slightest bit, the truck will start to violently shake and not gain speed,almost stalls a bit,causing a dangerous situation if you're trying to merge into moving traffic. Through reading and my own research on various forums. This is called transmission stutter and is a common problem with Ford's 6 speed automatic transmissions, that is not specific to vehicle or trim level or year model.

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

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).

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.

Having issues with lead frame. Truck is a 2015 f150 3. 5 ecoboost with the 6r80 transmission. Every so often the orange wrench appears and dash looses what gear and where it is in the column. Have taken pictures as well as pulled the codes that appear p0707, p0706, p1702. It will randomly happen from time to time. Currently buying all the parts to replace the issue part and seeing if there’s a recall for said part.

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.

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

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.

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 806-500-9173 arturo rivera 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.

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