2020 Ford F-150 transmission problems

Filed Nov 4, 2026 · Transmission · MO

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 the federal safety agency 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.

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 Nov 2, 2026 · Transmission · FL

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.

Filed Oct 30, 2026 · Transmission · TX

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.

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 Oct 21, 2026 · Transmission · 90,000 miles · CA

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.

Filed Oct 7, 2026 · Transmission · MN

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 federal safety agency to investigate this systemic 10R80 CDF drum failure to protect consumers from catastrophic accidents.

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 24, 2026 · Transmission · 40,500 miles · OH

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.