Due to cd drum known issue with these transmissions, they are unsafe to drive, pulling into traffic truck will not accelerate while it searches for gears. I can not drive this truck with this known issue, it's to dangerous.
2020 Ford F-150 complaints
Owner reports filed with NHTSA about this vehicle, newest first and reproduced as filed. They are unverified accounts: one proves nothing, and a pattern across many is the thing worth reading. Back to the full 2020 record →
This vehicle has occasional issues where the vehicle camera freezes and blacks out when backing up. This vehicle has a similar issue to another recall that was issued on a newer vehicle in our fleet, which was a 2022 Ford F-150 and was included in the NHTSA Recall 25V315/Safety Recall Notice 25S49. This vehicle has been regularly serviced and inspected by the Dublin City Shop.
The contact owns a 2020 Ford F-150. The contact stated that while operating the vehicle, the transmission was shifting hard, jerking, and downshifting unexpectedly and randomly switching gear. The vehicle was taken to the local dealer on several occasions over the years for the recurring transmission failure. The transmission software updates were performed but the failures persisted. The vehicle later stalled and was towed to the local dealer who diagnosed that the transmission CDF drum had failed and needed to be replaced. The vehicle was not repaired and was later towed to the local transmission specialist who confirmed the failure and replaced the CDF drum and the vehicle was repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 30,000.
Transmission vibration between 30-45 mph, erratic shifting, sometimes harsh.
The transmission has failed. The vehicle has barely 100,000 miles. I understand there are multiple class action lawsuits stating Ford knew of the issues with the transmission, yet still allowed it to be sold. The dealership has said this isn’t their problem.
The skid plate came off. It’s fabric screwed in by metal so it rips off over time. I know and have seen many other Ford owners who have experienced this same problem. It’s a hazard and a concern that will keep occurring if you replace it with the same fabric and it’s costly to replace with a metal skid plate. It’s a manufacturing problem that should be recalled.
At about 15000 mile (under warranty) I had to take it to the dealer for hard shifting. At around 58000 mile and still under warranty I started to have intermittent hard shifting and searching for gears. At 63000 (out of warranty) I had complete transmission failure with gear lockouts occuring on 2nd and 7th gear and hard shifting. Applied for to FORD for after warranty assistance and was told to keep driving the truck while they worked it out with Customer Service Assistance. AI is reflecting to STOP driving the vehicle immediately as it is a known safety issue from FORD. WTH!
The contact owns a 2020 Ford F-150. The contact stated that while attempting to start the vehicle, there was an abnormally loud sound coming from the vehicle. Additionally, while driving at an undisclosed speed, the vehicle was idling abnormally rough. No warning lights were illuminated. The vehicle was taken to the dealer several times, however the failure was not duplicated. The contact stated that the failure was a known failure with the vehicle. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 28,000.
The 10 speed transmission at low transmission temps shifts extremley hard to the point where it will down shift in a slow acceleration back to first gear and chirp the tires, in the rain this could cause me to lose traction in adverse weather conditions. Somtimes it will shift into to neutral and not accelerate at all for a few seconds before shifting back into first gear, making it dangerous if I im trying to cross a road and the truck essentially stalls for a few seconds blocking the road way. The last full service oil change i had said the transmission fluid was correct. on online forums i have seen a lot of the same issues with other owners. I asked ford dealership about it and they told me to drive it until a warning light comes on. this sounds like some issue with the transmission itself and not a wear and tear issue as i have 100,000 miles on the truck and do very little towing with it.
Unknown
I had to replace my transmission entirely at my own expense after it ultimately failed. Prior to the failure, I had already filed a complaint because the transmission was exhibiting the well-documented symptoms associated with the 10R80, including harsh shifting and unpredictable operation. These issues created legitimate safety concerns while driving, as I could not rely on the vehicle to shift properly or respond consistently in traffic. A vehicle of this age should not require a complete transmission replacement due to what appears to be a design-related issue. Ford has acknowledged these transmission concerns in multiple Technical Service Bulletins addressing harsh shifting, delayed engagement, and related issues with the 10R80 transmission. However, despite recognizing these recurring conditions, Ford has not extended warranty coverage or issued a recall for affected vehicles. Additionally, Ford revised the CDF clutch cylinder/drum design in later-production transmissions, indicating that the original design was updated after these issues became apparent. Given the widespread nature of these failures and the subsequent engineering changes, I believe owners should not bear the full financial burden of repairing what appears to be a known defect. The financial impact extended far beyond the cost of the repair itself. Because my truck was out of service for more than six weeks awaiting replacement, I was forced to find alternative transportation while continuing to operate
The contact owns a 2020 Ford F-150. The contact stated that while driving in 10th gear, the transmission unexpectedly downshifted to 3rd gear, and then to 1st gear. Additionally, the contact stated that the vehicle hesitated to shift into the intended gear, shifted hard into drive(D) or in reverse(R), and the vehicle overheated intermittently. The contact stated that while driving 70-75 MPH, the vehicle decelerated to 40 MPH in the middle of the interstate. The power train warning light was illuminated. The contact pulled over to the side of the road, turned off and restarted the vehicle, and the warning light disappeared. The contact stated that the failure was a recurring failure. The vehicle was taken to the dealer, where it was diagnosed and it was determined that the transmission had failed and needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was not notified of the failure. The failure mileage was approximately 184,000.
I bought the vehicle at 33,000 miles. Since 40,000 miles I’ve noticed hard shifting and stickiness in my powertrain whether in high gear or low gear. I’m at 105000 currently, and wasn’t warned of any of these manufacturing issue when I bought it. The worst of it has always been 1st gear. The lack of responsiveness and slow shifting has caused me on numerous occasions to propel forward suddenly in parking lots and other sites.
Drive a 2020 Ford f150 with a 2.7 l. XLT with a a 10r80 transmission. I was getting on the highway. Got up to 70 75 mph didn't make it very far and my transmission jerked real hard shut me forward and I hit the steering wheel and broke a tooth and it went from 70 to 75 mph down to zero from top gears all the way to one and now it won't go past 7th gear on the highway and if it does it's either at a slight downhill or level roadway and I might make it into 8th or 9th. But to continue with forward celeration to keep current speed, it stays in seven gear running at high RPMs and Ford won't do nothing about it because it's not on a recall list and I contacted Ford corporate and filed with them. Heard nothing filed with my Ford dealership that's in town for them to file it with Ford and nothing and Ford won't do their job to fix the problem that's been going on with the 10 already transmissions and the vehicle is not safe to operate or drive and it's my only vehicle and it puts me at risk driving it for my life. And with it being a safety concern, Dave won't do anything about it and I don't have $10 to $20,000 for them to replace the transmission and the labor and all that
The vehicle started rolling on its own and there was a clicking sound. I have a video of it and audio. Your uploading limit cannot handle a video of 28 seconds. The Google Drive link below has the video. If you are unable to open Google Drive please reach out to me. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Over the past year (2025) we have noticed that our F150 King Ranch occasionally was having a rough or harsh shift between the 7-8 gear. We took the Truck to the dealer where we purchased the Truck, Mullnax Ford of Central Florida, in the summer of 2025. We left the vehicle with the service manager, later he called us and indicated that the technician could not replicate the issue. Several months later in November, 2025, with the problem recurring all the time and also happening at other shift points. We took the truck back to the dealer, Mullnax Ford of Central Florida, 1551 E Semoran Blvd, Apopka, FL 32703. We left the vehicle with the service advisor, Sam. Later that day the service manager Sam said the technician “test drove the truck and said needs a new transmission at a cost of almost $10,000.” Based on research I conducted I determined that there was an existing TSB 25-2475 recently issued October 25, 2025 regarding this harsh/delayed shifting issue on the 10R80 transmission and applicable to our Truck. We have taking the truck to 2 Ford dealers asking them to perform the diagnostic process outlined in TSB 25-2475 The harsh shifting is not only annoying, the sudden sharp shift especially at lower speed presents a possible significant safety risk. The harsh shift many times causes the vehicle to lurch unexpectedly. The truck is only 5 years old and has less than 100k miles We sent certified letters to the CEO of Ford and to the Ford Customer Relationship Center, with no
My transmission “slips” causing the truck to “jerk” very harshly when it shifts. The problem is VERY scary when I’m driving the vehicle, making me feel and think that the truck is breaking down. It is psychologically very scary. I purchased the vehicle brand new in 2020. I have taken it in multiple times complaining of it (still have the documentation noting the problem). The dealership has not been able to reproduced, but I know that they have been aware of this specific problem since before I bought the vehicle.There are never any warning lights or symptoms. When I took it in for service complaining of the problem, the vehicle was under warranty. They never fixed the problem, even AFTER they had a fix for it. Now it is out of warranty. I am [XXX] old. I bought the vehicle expecting it would be the last vehicle I would purchase as I will retire soon. Once I retire, I will not be able to afford a car payment. I will have my social security ONLY to live on!! I am terrified that my vehicle now will not last the remainder of my life. I am very traumatized by this whole thing, knowing that Ford knew about the problem and never acknowledged to me the problems there were with this 10 speed transmission, much less fixed it. I need HELP from someone getting Ford to do the right thing. I don’t understand why there was never a recall for this problem. I know there have got to be thousands of other Ford owners out there experiencing the same problem with their vehicles. My son has the s
I am submitting this complaint regarding the 10-speed automatic transmission in my 2020 Ford F-150 because I believe it presents a potential safety hazard. The transmission has exhibited harsh and unpredictable shifting, including hard upshifts, hard downshifts, delayed engagement when shifting into Drive or Reverse, and sudden jerking during acceleration and deceleration. The vehicle has also experienced hesitation followed by abrupt engagement, creating unsafe driving conditions, especially when entering traffic, making turns, or driving at highway speeds. These transmission problems have occurred repeatedly and have become more frequent over time. The unpredictable operation increases the risk of losing control of the vehicle or being involved in a crash due to delayed or unexpected acceleration. I have maintained the vehicle according to the manufacturer's recommended service schedule and have sought repairs. Despite these efforts, the transmission issues have persisted. The truck has 26k miles and I have only used it as daily transportation. I am aware that many owners of Ford vehicles equipped with the 10-speed automatic transmission have reported similar problems. Because these issues appear to be widespread and involve a critical safety-related component, I respectfully request that the National Highway Traffic Safety Administration investigate these transmission failures to determine whether a safety defect exists and whether additional action is warranted. I believe
The contact owns a 2020 Ford F-150. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The vehicle was driven to a nearby rest stop. The power train malfunction warning light was illuminated. The contact stated that the transmission had overheated. The vehicle was turned off to allow the transmission to cool down. The contact stated that occasionally while attempting to start the vehicle, the vehicle failed to start. The contact stated that while driving at an undisclosed speed, the vehicle was jerking. The vehicle was driven to the residence. The vehicle was later 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. In addition, the contact stated that the transmission had been replaced thirteen months prior to the failure. The contact was informed that the transmission had a one-year warranty coverage. The manufacturer was made aware of the failure. The failure mileage was approximately 59,000.
Back in Jan 2025 I noticed oil consumption from 2020 F150 with the 5.0 engine. There is class action lawsuit against Ford currently for this problem they know they have. I informed my local dealer, that has always serviced my tuck on time over the years, that it was smoking. I have owned this truck since new in Sep 2020. It had roughly 33K miles on it when I first noticed it. The dealership started running consumption test on it under warranty at 36,370 miles. They changed the oil regular for the test and instructed me to drive it 1000 miles each time between changes. One change before they tried to fix it, it had consumed 5 quarts of oil. Ford says 1 quart per 10K miles is normal. They changed several motor parts when it was at 41,121 which took about a month. The problem got worse and I informed them and they again started testing it again and instructed me to drive it 1000 miles each time. They pushed the milage up and also ran it over on the warranty time frame and it has been at their location for over a month now, and Ford doesn't want to pay for a motor that only has 48,086 miles on it due to being out of warranty. They knew this problem existed and caused the warranty to laps and never fixed it. Now they are asking me to pay $11,598.42 for a new motor they knew was bad 15k miles before warranty went out. I am going through steps to make someone aware of this issue I'm currently dealing with. This motor has this problem, and they knew it and never fixed it and intentio
CDF drum failure on transmission causing transmission to miss shifts, rough shifts, and caused catastrophic damage to transmission, at just over 100K miles. It was out of warranty, but considering the number of complaints surrounding this issue, this needs to be a recall, and there needs to be financial reparations made by Ford to vehicle owners who have experienced this issue, necessitating a transmission replacement. Totally unacceptable.
Engine shut off at 60mph on mountain road. No warning, noise or other indications. Warning appeared once engine shut down; instructed to stop and restart vehicle. All temps and pressures were in normal operating range at time of shut down. wrestled vehicle to a stop, towed home (midnight) and then towed to dealership next morning. Safety at risk with vehicle shutdown at 60mph, fortunately no traffic and shoulder was available. Motor is available at the dealership, has been inspected and diagnosed as complete engine failure, engine seized with no know/visible cause without extensive teardown.
Driving on freeway 10 speed transmission failed - hard knock and jerk, almost got in an accident. Gears 6-9 dead. Apparently this 10-speed transmission is a known issue, with many technical service bulletins issued, class action lawsuits, and angry customers. Ford refuses to issue a recall and the NHTSA refused to hold them to account. Something is broken - how can Ford make such a known, terrible important component to a vehicle that fails regularly - yet get away with it? I thought the NHTSA was supposed to protect us from these unsafe vehicles?
The 10R80 transmission shifts extremely rough. For example, mine has 67,600 miles on it and has horrible shifting behavior in the lower gears (3,4 and 5) whether shifting up or down. This is a very common problem and Ford has yet to deal with it for recalls and improve safety. The fix is extremely expensive and needs to be addressed.
Windshield seal failure. Water intrusion into the electrical system. The horn does not work and intermittent starting problems. Water intrusion caused mold in numerous components. Truck was checked over at local Ford dealer. Waiting for parts to make repairs. Repair quote available if needed.
The contact owns a 2020 Ford F-150. The contact stated that the radio was inoperable, and the audible alerts failed to operate as needed. The start-of-trip and seat belt chime failed to operate while the seat belt was unbuckled. Additionally, there was no chime while the key was in the ignition or while the door was opened. The vehicle was taken to a dealer where it was diagnosed Audio Control Module (ACM) failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 176,792.
The brake line on the front passenger side was rubbing and failed. We were put at risk because the brakes lost fluid. We have had 4 identical vehicles with the same issue, 3 failed and 1 was replaced before failure. Not to my knowledge has it been inspected other than a dealership and tech. There were no warning lights.
My 2020 Ford F150 was diagnosed by a shop to have the well known CDF drum issue. This issue is very expensive to repair and have experienced several safety concerns while conducting daily drives to and from work or other locations nearby. The transmission will not allow you to accelerate while on the freeway making it impossible to merge safely out of the way or even just get up to speed safely. The truck will flare up in RPM but will not accelerate or shift into the next gear. Once it does it will do it very violently.
Transmission failed Transmission locks up slamming vehicle to a stop. transmission sometimes will not change gears and go into neutral when driving down highway. Dealer has confirmed problem and stated that ford knows that it has a faulty CDF drum in transmission. there were not any warning lights before this started occurring.
I suspect a CDF Clutch Drum sleeve migration. This is a notorious manufacturing defect in 2017-2020 1080 units. The truck just passed the 60,000 mile power train warranty. A 2020 4x4 Sport is a highly sought-after, higher-trim truck. I invested heavily in a premium vehicle and expected it to last well past 65,000 miles. My truck is at the group 1 ford dealership in Shreveport and the service manager stated I need a new transmission. Quoted $8,800. I can not afford this and would like it to be covered for helped paid for. The service manager told me to call customer service at ford and ask for a goodwill case stating these transmissions are in a lawsuit currently and ford made a replacement part for the specific transmission. The cdf drum. The truck up and down shifts while driving down the road randomly and is a safety concern. Hard shifting between 1-3 and 4-6 speed. The 10 speed transmission
While driving my 2020 F150 VIN # [XXX], at highway speeds, transmission abruptly shifts down to 1st gear then back to 9th gear and does not advance to 10th Gear. Also, while accelerating, at 3 gear shift to 4th, there is a slipping of the transmission and eventually it kicks in to 6th gear. When the downshift occurs at highway speeds, the transmission slows immediately where we have to pull over or get hit by traffic in our lane. This problem was confirmed by an independent Service center once i took it in. Other than the independent service center, i have not had anyone else inspect the vehicle. When this error happens, i get a wrench light come on and it will not go away until i shut off the engine and wait 1 min or so, then restart the truck. In one incident, when the truck was rolling at highway speed and the downshift occurred, the rear wheels locked as though i had hit the breaks. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Another Failed CDF on 10r80 transmission, these are happening everywhere! Where is the recall?!?!?!?!
2020 Ford F-150 custom-built in Sept 2020 developed severe, textbook warning signs of rear-end failure while traveling—specifically severe low-speed metallic clanging and high-pitched whirring from the rear wheels. Recognizing the potential danger, we safely exited the highway and sought an immediate diagnostic from an independent shop. The diagnostic confirmed the defect mechanism detailed in NHTSA Campaign 23V896000: fractured axle hub bolts, disintegrated pinion gears, and metal shaving contamination throughout the 9.75-inch axle housing. While we avoided a high-speed highway shutdown by proactively seeking repairs, the underlying structural manufacturing defect is identical to the active recall. My truck's build date sits squarely inside the part production window specified by Ford in that campaign (starting Jan 28, 2020), but my VIN is excluded due to a generation cutoff. Note: We have retained the full replaced axle assembly fully intact and available for physical inspection by NHTSA investigators.
The transmission failed while driving. While accelerating to speed, there was a "clunk" and then the vehicle was unable to shift to another gear, stuck in 7th. The vehicle lurched continuously, decelerated suddenly, and I was unable to shift up or down. Cars behind me swerved to avoid hitting me. Luckily I was able to drive at below speed with hazards lights flashing to the nearby dealership. Truck has completed every recommended maintenance check and only has 65,600 miles on it. Repair costs for new transmission were stated to me at $9800 by the dealership. There were no warning signs or symptoms prior to the failure. However, reading multiple online complaints indicates Ford has known about the defect for the 10R80 transmission failure for years, as early as 2017, and there is a recall for this for model years 2017-2018. This is clearly a safety issue, and I am lucky I was not on the highway at high speed nor had my grandchildren in the vehicle.
I own a 2020 Ford F-150 with the 5.0L V8 engine and have under 60,000 miles on the vehicle. The engine is consuming excessive amounts of oil — approximately 3 to 4 quarts every 5,000 to 6,000 miles under normal driving conditions with no visible leaks or blue smoke. I brought the vehicle to a Ford dealership and opened a formal case with Ford Motor Company. Ford performed an oil consumption test and stated the consumption was within acceptable limits. I do not find this acceptable for a relatively new engine and the owner’s manual does not indicate that adding oil between changes is normal or expected. This level of oil consumption poses a potential safety risk as inadequate lubrication can lead to premature engine wear and failure. I am requesting that Ford acknowledge this as a defect and provide a remedy under the powertrain warranty. Other F-150 owners have reported the same issue and I believe this warrants a formal investigation
Transmission failure vehicle when pulling into traffic/or road while up shifting the trans would have harsh shift and would slip as if not in gear the engine would rev rpm’s and slam hard into gear usually 2nd gear through 7th gear. Sometimes while driving say going downhill the transmission would down shifting from 10th gear to 8th gear hard, sometime it would down shift on the display to first gear and seemingly be coasting until it would just up shift to any gear it chose. My safety and that of my passengers was that while merging into traffic with the transmission slip or hunting for gears caused other traffic to brake, slow or avoid my vehicle.There were never any warnings on the display dash. Manufacturer Dealer had 7 week wait list for appointments but was scheduled. Manufacturer Dealer mechanic tested vehicle and determined code o76f present for 7th gear leading to failure of transmission and recreated the same failure results while test driving. Recommended transmission replacement and has since replaced the transmission with new transmission at my expense of $8630.00- taxes plus charge of $199.00 for diagnostic work.
Vehicle is having erratic downshifting at highway speeds causing it to drop gears and brake harshly then violently accelerate. The transmission was already replaced by the dealer in 2025. Dealer is reporting they cannot get the vehicle to duplicate the issue but this has posed a great safety risk of injury for my family.
Issue Description: The radio/infotainment system intermittently cuts out and produces loud static noises while driving. The issue occurs without warning and happens repeatedly. Safety Concern: The sudden loss of audio and loud static creates a distraction while driving and can interfere with hearing important external sounds (traffic, emergency vehicles, etc.). The unpredictable nature of the problem increases driver distraction and could contribute to unsafe driving conditions. Conditions: Occurs while driving (various speeds) Happens intermittently No clear trigger
10r80 transmission shifts from 7th & 9th gear to 2nd gear causing truck to jerk and over rev. there were two mil lights local shop was able to read and reset once and cleared codes. This just recurred and truck was not able to be driven. Ended up replacing transmission same week as this problem started. New transmission has been fine since.
Transmission issues: Harsh, erratic shifting (jerking, lurching, and hesitating, especially when cold). Delayed engagement (2 to 3 seconds before engaging Drive or Reverse). Gear slippage accompanied by prominent clunking. Severe risk of total transmission failure if left unaddressed.
I was driving and slowing down for a stop sign and the engine shut off by itself while still moving at appx 10-15mph. The display had several warning lights appear, and the message "Auto Start Stop, Shift to P, Then Restart Engine". I have the Auto Start Stop disabled on my vehicle, so there was no reason for my engine to shut off while decelerating. I searched online for potential causes and discovered that there are numerous incidents of this happening (engine shutting off while moving) to drivers that have deactivated the auto start stop on their vehicles. See link: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The transmission has a history of harsh shifting and slipping. At 101,600 miles being told this is a known issue with the transmission and likely needs to be replaced.
* This complaint concerns a catastrophic failure of the transmission in my vehicle. This defect was first reported to a Ford dealer while still within the 5-year/60,000-mile powertrain warranty (Jan 3, 2023, at 58,679 miles; Invoice #XXX). * The condition worsened. Between July 2024 - Jan. 2026, I received 7 digital "Service Engine Soon" warnings via the Ford App. My dealer advised that the vehicle was "OK to drive" as long as the light (which never stayed on) was not flashing. I was told diagnostics could not be made unless the light was active at the dealership. Jan 16, 2026, the light came on; I was able to take the truck to the dealer. A fault code was finally captured, but the dealer reported a two-month service backlog. I could not wait that long. *Feb 2026, I established a clean engine baseline. I spent $833.15 to replace O2 sensors (EJ’s Automotive) to rule out engine−related performance issues. During this service (at 103,431 miles), an inspection confirmed metallic clutch material contamination in the transmission fluid only 10,248 miles after a 2nd professional flush. This failure occurred despite a total maintenance investment of $11,533.80 across 21 service visits. * This failure resulted in a dangerous Loss of Motive Power, creating a collision risk. The vehicle is currently grounded and completely inoperable. The dealership verbally designated the vehicle as VOR due to the confirmed diagnosis, only to contradict that status by claiming it was "driveable" after
This car has tail lights that are in operable, and do not work, it has almost caused a quite a few near accidents, would like to see this resolved soon.
I took it to the ford dealership, they said the transmission needed to be replaced
My 2020 Ford F-150 5.0L Coyote V8 had its engine replaced under factory warranty on 4/30/25 by an authorized Ford dealer. The replacement engine was installed with my original 50,000 mile fuel injectors reinstalled by Ford's technician — I was not informed new injectors were not included. The vehicle is now diagnosed with a failed direct fuel injector causing a cylinder 3 misfire at approximately 10,000-12,000 miles on the replacement engine. Additional injectors show signs of imminent failure. The shop also documented the replacement engine running 2 quarts low on oil at only 10,000-12,000 miles of service. This level of oil consumption on a recently replaced engine is abnormal and unexplained. The safety concern is twofold. First, a vehicle running chronically low on oil due to abnormal consumption on a replacement engine risks catastrophic engine failure without adequate warning to the driver. Second, misfiring cylinders affect vehicle driveability and create unpredictable power delivery that constitutes a safety risk particularly at highway speeds. Symptoms including rough running and the check engine light first appeared in November 2025. The vehicle has been at an authorized Ford dealer for diagnosis since May 2026. Ford Customer Relations has declined goodwill assistance despite the failure occurring on components reinstalled by Ford's own technician during a warranty repair, symptoms originating within the warranty window, and the vehicle being only 8 days outside the
I own a Ford F-150 equipped with the 10R80 10-speed transmission. The truck has approximately 79,000 miles and has been diagnosed by a Ford dealership with CDF drum/cylinder and solenoid body failure. The quoted repair cost is over $10,000 for a remanned transmission replacement. This truck has shifted hard since approximately 30,000 miles, but I was led to believe it was normal behavior for the 10-speed transmission. The vehicle has been lightly used and properly maintained through Ford. It is still on its original tires and brakes, which supports that this is not a high-abuse or heavy-use vehicle. A major transmission failure at 79,000 miles under normal use is not reasonable vehicle durability. The failure involves the CDF drum/cylinder, a known failure point in the Ford 10R80 transmission. This can cause harsh shifting, delayed engagement, gear skipping, slipping, abnormal acceleration behavior, and unpredictable shifting. These conditions create a safety concern when accelerating into traffic, merging, turning across lanes, passing, or driving at highway speeds. Ford has issued technical service guidance related to the 10R80 transmission and CDF drum/cylinder failure, including diagnostic procedures for hydraulic leakage and internal repair. This confirms the issue is known and identifiable, yet owners are still facing extremely expensive failures outside the standard warranty period. Another concern is that Ford is proposing remanufactured transmission replacements rath
The transmission was already rebuilt under warranty, had 49,700 miles. While traveling between 70-80(while passing)open road the transmission tried going into 1st gear happned a few times until went into limp mode. Just me, no trailer, nothing in the bed. The dealership nor corporate would do anything since I had turned off the truck. Even though the codes were stored.
Transmission shifts hard and downshifts with a huge clunk. Jerking the vehicle very big known issue for these trucks and am extremely low miles. Under 50k miles A bad safety issue and huge repair bill for the consumer.
I purchased a 2020 Ford F-150 XLT with a 5.0L engine from Quirk Auto Group in Maine approximately six months prior to discovering a major engine defect. At the time of sale, I was provided documentation stating there were no known mechanical issues or prior defects with the vehicle. Shortly after purchase, I brought the vehicle back to the dealership due to a noticeable rattling noise and performance concerns. I was told the noise was caused by debris (rocks) stuck in the undercarriage, and no further action was taken. This concern was documented during that visit. Over time, the vehicle began consuming excessive amounts of oil, approximately three quarts per month which is far beyond normal operating conditions. I later brought the vehicle to a certified Ford dealership for further diagnosis. After inspection, I was informed that the engine had significant internal wear, including worn cylinder walls, and required a full engine replacement (long block), with an estimated cost of approximately $15,785. I have since learned that this engine issue is consistent with a known defect documented in Ford Technical Service Bulletins (TSBs) as well as an open class actions lawsuit against ford, and records indicate this issue had been present with the previous owner. This information was not disclosed to me at the time of sale. I have made multiple attempts to resolve this issue directly with both the selling dealership and Ford Motor Company. Ford has offered partial financial assist
Reading these
NHTSA publishes every complaint as the owner wrote it and investigates only a fraction. Spelling, capitalisation and judgement are the filer’s own. What carries weight is repetition: the same component failing the same way across many filings, and whether the manufacturer eventually opened a recall for it.
Full record for the 2020 Ford F-150 → · Every F-150 year → · How the figures are calculated →