2021 Ford F-150: complete transmission failure

Filed Nov 6, 2026 · Transmission · TX

Hi my name is [XXX]. I bought my 2021 F-150 used with 40k miles. I love my truck and spend the money to keep up with all of the maintenance in hopes that it will last me a long time. At 61k miles, my transmission blew which seems insane to me. These 10 speed transmissions and known CDF drum failures are happening to so many people I talk to. I’m filing a complaint bc even my new transmission is experiencing hard shifts already after driving it for 9k miles. How many transmissions will I have to go through before Ford takes accountability. It’s unfortunate that these trucks cost so much money and then you potentially have to dump another $20k into it before even reaching 100k miles. I’m filing a complaint because I believe Ford should recall the CDF drum failures a do right for the customer. To my knowledge, these issues were fixed around 2024 models. Additionally, my transmission went out on a toll road where the speed limit is 85mph. I lost significant power and had to reduce my speed to 55-60mph which is a huge safety concern when people are passing you going 30mph faster than you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 6, 2026 · Lights, Transmission · FL

10r80 transmission failed at 80k miles. There were multiple occasions where leaving a stoplight it would move and then basically go into neutral while hunting for gears to start moving again. The drls on the headlights have both failed so now in between westher events and day/night events the vehicle no longer has a working drl. If it is cloudy and the headlight sensor doesn’t trigger the headlights to come on there will be no lighting from the front of the vehicle at all

Filed Nov 6, 2026 · Lights, Transmission · FL

10r80 transmission failed at 80k miles. There were multiple occasions where leaving a stoplight it would move and then basically go into neutral while hunting for gears to start moving again. The drls on the headlights have both failed so now in between westher events and day/night events the vehicle no longer has a working drl. If it is cloudy and the headlight sensor doesn’t trigger the headlights to come on there will be no lighting from the front of the vehicle at all

Filed Oct 3, 2026 · Transmission · IA

Vehicle: 2021 Ford F-150 Tremor Mileage: Approximately 103,000 miles My 2021 Ford F-150 Tremor developed a severe shudder and vibration during acceleration. The condition progressively worsened and became significant enough that I had the vehicle professionally inspected. The vehicle was diagnosed with a failing torque converter as the cause of the acceleration shudder/vibration. The truck has been well maintained throughout my ownership. It is garage kept and receives regular maintenance through an authorized Ford service facility. I have maintenance records documenting the vehicle’s service history. My concern is that the torque-converter failure produces a severe vibration/shudder during acceleration and has progressively worsened. I am concerned about the potential safety implications if the torque converter or transmission continues to deteriorate while the vehicle is being driven. I contacted Ford regarding the failure and requested assistance with the repair. The vehicle is outside Ford’s original powertrain warranty at approximately 103,000 miles, and Ford declined to provide assistance. I am submitting this complaint so the federal safety agency has a record of this torque-converter/transmission failure and the severe acceleration shudder occurring in my 2021 Ford F-150.

Filed Sep 16, 2026 · Transmission · 113,468 miles · TX

The contact's son owns a 2021 Ford F-150. The contact stated that her son reported that while accelerating from a complete stop, the vehicle hesitated significantly and shifted hard while the accelerator pedal was depressed. The vehicle was towed to the dealer, where it was diagnosed with transmission failure. The dealer determined that the transmission needed to be replaced, and the vehicle was repaired. The contact received notification of the federal safety agency Campaign Number: 26V402000 (Power Train), which the contact associated with the failure. The manufacturer was notified of the failure and informed the contact that reimbursement could only be provided when the recall remedy became available in April 2027. The failure mileage was approximately 113,468.

Filed Aug 17, 2026 · Transmission · GA

My truck is having transmission problem , hard shifting , going into neutral while driving, same problem with other 1080R transmission ford has on the recall list, I have had it in the shop before at Five Star Ford Stone Mtn Georgia, they said it was the battery, they put a new battery in it, same didnt fix the problem, now they are saying I need a new transmission , they know there is a problem with the 10 speed 1080R transmission, ford needs to recall all of these 10 speed transmission.

Filed Aug 11, 2026 · Transmission · CO

My F150 10R80 transmission is throwing a P076F code. And the shifting has become very harsh and eratic all across the 10 gears. Hesitations, high revs, hard shifts, etc. This is a known issue by Ford and they have issued TSBs on the issue. They acknowledge that it is a design flaw within the transmission and have issued fixes. But if you are outside of the 60,000mi warranty, the burden of the costs falls on me, the owner. $9400 to replace the transmission with a new Ford transmission here in Colorado. This is a known problem in the design but Ford is not stepping up to help. They let the burden fall on the owner.

Filed Aug 3, 2026 · Transmission · TN

I am reporting a safety-related transmission problem I experienced with my 2021 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly downshifted hard, with a jolt that shook the whole truck, then went into emergency limp mode, where I had to pull over to the shoulder, on Interstate 240 in heavy traffic. I was attempting to accelerate to merge into merging traffic. Because of this it created a dangerous situation because the truck did not respond as expected when I needed predictable acceleration or propulsion. Other times I have had hard shifting, but did not result going into limp mode. 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.

Filed Aug 1, 2026 · Transmission · MA

I am reporting a safety-related transmission failure I experienced with my 2021 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly failed to engage and then shifted violently, causing an unexpected loss of power and then a change of propulsion. This occurred while merging at highway speed, creating a potentially dangerous situation because the truck did not respond as expected when I needed acceleration. I believe this incident may be related to the known 10R80 CDF clutch-cylinder/sleeve problem. Ford technical information for 2021–2022 F-150s identifies axial movement of the CDF sleeve that can cause hydraulic-circuit leaks and harsh or delayed engagement and shifting. This 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 issue. Unexpected loss of propulsion while merging, accelerating into traffic, crossing an intersection, or turning could leave a driver unable to accelerate as expected and create a collision hazard. An unexpected downshift or lurch can also abruptly alter vehicle behavior. Because I personally experienced this unexpected transmission event, I request that the federal safety agency investigate the 10R80 CDF clutch-cylinder/sleeve condition in 2021 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.

Filed Aug 1, 2026 · Transmission · TX

I am reporting a safety-related transmission problem l experienced with my 2021 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly will shift gears violently, unexpectedly downshifted. This occurred while accelerating, merging onto a highway, turning, crossing an intersection, traveling at highway speed, stop-and-go 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.

Filed Aug 1, 2026 · Transmission · NY

I am reporting a safety-related transmission problem I experienced with my 2021 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly downshifts aggressively resulting in the rear tires locking up and sliding for a moment. This occurs while driving in stop and go traffic as well as coming to a stop light/sign, creating a potentially dangerous situation. 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.

Filed Aug 1, 2026 · Transmission · MD

I am reporting a safety-related transmission problem I experienced with my 2021 Ford F-150 equipped with the 10R80 automatic transmission. While driving normally, the transmission suddenly slammed into the next gear, i had never felt that before, it happens when it shifts from 2nd gear to 3rd, and someone’s after i have already been driving at highway speeds for a while it will rev up as if it’s slipping or missing a gear. This occurred while driving on a main highway, and also happens right when i leave my driveway, creating a potentially dangerous situation because the truck did not respond as expected when I needed predictable acceleration or propulsion. A loss of power in the middle of busy traffic could cause an accident. This happens every single time i drive my truck, currently my truck has less than 55k miles. 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.