Owner-reported complaints naming the powertrain system, filed with NHTSA
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Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials. Every record below is an owner-reported complaint about the 2020 Ford F-150 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 358 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
The 25 most recent of 358, in the owner's own words
The contact's grandfather owns a 2020 Ford F-150. The contact stated that while driving, the message "Transmission in Park" was displayed with an audible chime constantly. Upon investigation, the contact discovered NHTSA Campaign Number: 26V402000 (Power Train) and associated the failure with the recall. The dealer was notified of the recall, and the contact was informed that the VIN was not included in the recall.
I am reporting a safety-related transmission problem I experienced with my 2020 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly lost power engine revved up and started to buck . This occurred while I was going down the coastal range pass while towing my boat, creating a potentially dangerous situation because the truck did not respond as expected when I needed predictable acceleration or propulsion. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks and harsh or delayed engagement and shifting. This condition can result in slipping, RPM flares, delayed engagement, unexpected gear changes, harsh downshifts, lurching, or loss of propulsion. This is a safety concern, not merely a transmission quality or reliability issue. Unexpected loss of propulsion or unpredictable shifting while merging, accelerating into traffic, crossing an intersection, turning, or traveling at highway speed can create a collision hazard. Because I personally experienced this unexpected transmission event, I request that NHTSA investigate the 10R80 CDF clutch-cylinder/sleeve condition in Ford F-150s. Please review Ford warranty claims, dealer repair records, transmission replacements, consumer complaints, and field-failure data to determine whether this is a safety defect requiring a recall. I believe owners should not have to wait for a potentially dangerous transmission failure before this known condition is addressed. Thank you for your consideration.
It will lose all power sometimes during 1-2 or 1-3 shift and not complete the shift causing you to be powerless in front of oncoming traffic while turning left on green across traffic. Then eventually slams into gear violently. This last time was not the first but two of my kids were in the truck this time. I have not had it to the dealer yet but after much research online this is a known problem and I have a pretty good idea of what they’re going to tell me. No check engine light.
A sudden transmission slip or hard shift into 8th gear every time. feels like someone is hitting the brakes just slightly when driving 40-50mph transitioning from 7th to 8th. sudden jerk when shifting into 4th more irregular but once a day at least.
Transmission has hard/harsh shifts and delayed gear engagement that began around 56,000 miles and have become much worse at 68,000 miles. The delay in engagement when accelerating from a stop, pulling into traffic or merging is a safety concern. A Ford dealer performed a transmission adaptive relearn and software update, but the symptoms continued. The dealer did not verify hydraulic leakage or perform the full diagnostic described in Ford TSB 25-2126 (MC-11016931-0001, harsh/delayed shifts on 2017-2020 F-150), and the only recommendation was to replace the entire transmission at roughly $5,000 after the powertrain warranty expired at 60,000 miles. The incident date entered is today because the symptoms are ongoing and progressive: they developed gradually since about 56,000 miles and are heading toward ultimate transmission failure. Safety concerns: hesitation and delayed engagement when pulling into or merging with traffic, the truck possibly rolling back when engaged on hills, and loss of reliable power on hills.
while driving on the highway, my 2020 Ford F-150 equipped with the 10R80 transmission experienced a sudden and catastrophic loss of power. The transmission failed to shift slipped gears, and left the vehicle completely neutralized in traffic. This sudden loss of propulsion created an extremely hazardous situation on the road, nearly causing a severe collision before I could safely pull over.
The contact owns a 2020 Ford F-150. The contact stated that while driving at an undisclosed speed with children inside the vehicle, the transmission shifted erratically and began shuddering. The vehicle decelerated unexpectedly. The contact stated that the check engine warning light was intermittently illuminated. The manufacturer and the dealer were notified of the failure. The failure mileage was 90,000.
I am writing to formally report a severe and dangerous safety defect regarding the 10R80 10-speed automatic transmission in my 2020 Ford F-150. While driving, the vehicle routinely experiences a complete "neutral-out" or severe shift flare when attempting to transition out of 1st gear. Instead of engaging 2nd or 3rd gear, the transmission completely drops out of gear into a false neutral. During this failure, the vehicle experiences an immediate and total loss of forward propulsion for several seconds while the engine revs freely. After a dangerous delay, the transmission violently slams back into gear. This is an acute safety hazard. Losing all forward acceleration unexpectedly—specifically when pulling out from a complete stop, navigating intersections, or merging into fast-moving traffic—leaves the vehicle stranded and completely defenseless against oncoming traffic. It creates an immediate risk of a severe rear-end or broadside collision, as trailing drivers do not expect a vehicle to suddenly lose all power. Ford is fully aware of this mechanical defect, as documented in their internal Technical Service Bulletin TSB 25-2126 (and its predecessors). The bulletin notes that an internal CDF clutch drum bushing physically slips out of place, blocking hydraulic fluid passages and starving the transmission of pressure. Because this is a known factory engineering defect that causes an unpredictable loss of propulsion in active traffic, it should be treated as a critical safety hazard rather than a standard wear-and-tear component. I urge the NHTSA to investigate this systemic 10R80 CDF drum failure to protect consumers from catastrophic accidents.
Transmission shifting very harshly. Especially in gears 3-4-5. Transmission will stop with no control, then abruptly slam into gear. 80,000 miles. Issues since new. Dealership says vehicle needs new transmission. Will factory assist at $3,700, my share $5,600. Ford has history with this transmission. Why didn’t they replace when in warranty?
The contact owns a 2020 Ford F-150. The contact stated that while driving 30 MPH, the transmission jerked while shifting gear. The failure was a recurring failure. The dealer was contacted and the vehicle was diagnosed with CDF drum failure. The contact was informed that the transmission needed to be replaced. The manufacturer was contacted by phone and made aware of the failure. The failure mileage was approximately 40,500.
The contact owns a 2020 Ford F-150. The contact stated that while driving at various speeds, there was a delay in the transmission shifting, and the vehicle hesitated while accelerating with the accelerator pedal depressed, and the vehicle jolted. The engine revved to 7,000-8,000 RPM. The vehicle was taken to an independent mechanic, who determined that the transmission needed to be rebuilt or replaced. The contact associated the failure with Technical Service Bulletin: 25-2301 (Harsh/Delayed Engagement and/or Harsh/Delayed Shift) and Technical Service Bulletin 25-2475(Harsh/Delayed Engagement and/or Harsh/Delayed Shift). The failure mileage was approximately 88,000.
Truck suddenly shifted from gear 8 to gear 2 then 4 reducing my speed suddenly causing other vehicles to almost hit me at around 40 mph. I drove home with the transmission erratically shifting up and down Even though I kept my speed under 30 mph. That was about 10 days ago and I made an attempt to drive it a few days ago after researching and in the same result happened. It seems I have been victimized by the CDF drum crawling out of its space leading to an imbalance of transmission fluid pressure. About 2 miles after the initial problem. A wrench symbol appeared on the instrument cluster with a message under it that says see manual. Just as every time I've tried to find something in the manual. After spending several minutes of frustration, I still never found the wrench symbol or what it means.
The contact owns a 2020 Ford F-150. The contact stated that while driving, the vehicle jerked abnormally, experienced a transmission shifting delay between gears, and occasionally slipped out of gear. The contact stated that after slipping out of gear, the transmission failed to re-engage gear and slipped continuously. The vehicle was inspected by a transmission specialist, who confirmed the failure and determined that the transmission needed to be replaced. The manufacturer was notified of the failure. The failure mileage was unknown.
Transmission slips gears and sometimes shifts violently. I took the truck to a Ford dealership for an assessment and was told I need to replace the whole transmission. I also have a problem with oil consumption from the engine. I was told by the same dealership that this was a known problem with the 5.0 engines built from 2019 to, I believe 2023 and that it would require an engine replacement. I bought this truck from an individual and now I am stuck with it.
The 10R80 transmission failed internally due to the defective CDF clutch drum assembly. Vehicle experienced dangerous gear dropping/slipping. Forced to pay out of pocket at an independent shop for a total rebuild. I have not seen anything from dealer. It was inspected by an independent shop. There was no warning prior to the failure. This happened right over 100,000 miles.
Transmission shifted from 4th to 1st while driving a steady 25 mph, then lost all forward drive, the transmission slips, then will slam into gear. I parked it for two weeks until I could get it to the shop. Driving it to the Ford dealer today (2 September 2026) I had to stop the vehicle twice because the transmission was doing the same thing. Currently have 70K miles on it.
Harsh shifting from 3rd to 4th and 7th to 8th
I am reporting a safety-related transmission problem I experienced with my 2020 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission shifts hard (ie: jerks, clunks) between 4-5 and 5-6 gears, and has on occasion failed to grab 1st gear when starting from a stop (revs, doesn't go). This occurred while turning across traffic, creating a potentially dangerous situation because the truck did not respond as expected when I needed predictable acceleration or propulsion. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks and harsh or delayed engagement and shifting. This condition can result in slipping, RPM flares, delayed engagement, unexpected gear changes, harsh downshifts, lurching, or loss of propulsion. This is a safety concern, not merely a transmission quality or reliability issue. Unexpected loss of propulsion or unpredictable shifting while merging, accelerating into traffic, crossing an intersection, turning, or traveling at highway speed can create a collision hazard. Because I personally experienced this unexpected transmission event, I request that NHTSA investigate the 10R80 CDF clutch-cylinder/sleeve condition in Ford F-150s. Please review Ford warranty claims, dealer repair records, transmission replacements, consumer complaints, and field-failure data to determine whether this is a safety defect requiring a recall. I believe owners should not have to wait for a potentially dangerous transmission failure before this known condition is addressed. Furthermore, I have already had two transmission rebuilds under warranty, and it's going back to the shop for a third time with the same issues 9/8/26. THE SAME ISSUES. I bought this truck in 2024 at 70K miles and it has been nothing but problems.
While driving I will get a wrench symbol with a bunch of codes pop up u0121:00:28 u0131:00:28 u0137:00:28 u0164:00:28 u0199:00:28 u0200:00:28 u0212:00:28 u0252:00:28 u0256:00:28 u1012:00:28 p0557:00:28 p1935:00:68 p193e:00:28 I have also had it jerk while driving ( went down into first gear) while having no power to my gauge cluster ac nothing
Severe transmission shifting delays, unresponsive when accelerating. Shutters and skips when coming to a stop.
Transmission shifts from a higher gear to 1st when going over 60, also transmission has a hard time shifting skips 2nd, 4th, and sometimes 6th gear.
Went to speed up as I was approaching a ramp going uphill and almost towards the top the truck decided to down shift to first gear going about 45 mph. No accident occurred as no one was around me.
There has been harsh shifting observed, both cold and warm. Often when downshifting and slowing to a turn or stop, there is a violent slamming into gear. I have also observed slipping in 3rd gear and making harsh shifts that appear to skip gears by the indicator. This is not a constant but intermittent issue. I have not taken it to the dealership because they will likely not be able to duplicate it in a reasonable amount of time.
Truck equipped with the 10R80 downshifted from 10th gear to 1st gear while on the freeway doing 80mph. NOT SAFE AT ALL.
Vehicle had hard and sudden shifting and grinding noise coming form gears. Sudden shifting would result in abrupt change in speed. Two repairs were made by a Ford dealership totaling just over $10,000 including replacing transfer case and transmission. There was no vehicle warning indicators that notified me of this problem.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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