2020 Ford F-150: complete transmission failure

Filed Nov 2, 2026 · Transmission · OR

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 the federal safety agency 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.

Filed Oct 25, 2026 · Transmission · PA

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.

Filed Oct 21, 2026 · Transmission · NJ

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.

Filed Sep 28, 2026 · Transmission · OH

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?

Filed Sep 15, 2026 · Transmission · CA

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.

Filed Sep 9, 2026 · Transmission · SC

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.

Filed Aug 27, 2026 · Transmission · WI

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 the federal safety agency 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.

Filed Aug 7, 2026 · Transmission · CA

Our 2020 Ford F150 transmission failed at 80k miles. Ford USA offered to pay half of the repair cost but is not willing to take full accountability on a transmission that was never was put under stress. Our truck never towed anything and was only use to drive from the shop to the job site and with only 1 up to 2 passenger only max. Per google research: The 2020 Ford F-150, equipped with the 10R80 10-speed automatic transmission, commonly experiences harsh, erratic, or delayed shifting, sudden jerking or lunging between gears, and gear slippage. These issues stem from software calibration flaws in the adaptive learning system or mechanical wear on internal components. Common Symptoms and Issues Rough Shifting: Hard, delayed, or clunking engagement when shifting between lower gears, especially on cold starts. Lunging or Hesitation: Sudden forward surges or hesitation when trying to accelerate from a rolling stop. Gear Slippage: Temporary loss of power delivery or failure to catch the next proper gear cleanly. Shift Cable Clip Recall: A limited recall addressed a faulty shift cable lock clip where the gear indicator might show a different gear than what was actually selected, increasing rollaway risks

Filed Aug 4, 2026 · Transmission · TX

Transmission failed. Truck jerks at stop. Transmission went out at 68,000 miles. My dad has a 2019 with same problem and went out at 72,000 miles. Someone needs to hold ford accountable for this. Extended warranty didn't want to pay the full price. Now I am out of pocket $1,800. Going to file a lawsuit against Ford and the extended warranty company

Filed Aug 1, 2026 · Transmission · AK

While driving truck down highway with cruise set at 68mph . I was in a bit of incline( not towing) vehicle violently downshifted from 10th to 1st . Service powertrain wrench came up on dash . Vehicle was derated . I came to a stop and shut down key off restarted . Vehicle operated normally again. Took vehicle to ford dealership where they could not find any issue . They also installed a pcm update at that time. Since then the vehicle has a harsh 3-4,5,6 shift and flaring in 7,8,9&10. I am convinced and concerned that the transmission is hurt due to what happened. Ford quoted 13,000.00 to install a new transmission. The truck has never been abused. I don’t wish what is happening to me on anyone as a inexperienced driver in winter conditions would have caused a major accident.

Filed Jul 20, 2026 · Transmission · 30,000 miles · IL

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.

Filed Jul 17, 2026 · Transmission · KY

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!