Ford F-150 Hybrid harsh shifting problems

Filed Nov 6, 2026 · Transmission · MI

Lurching/Hard shifting from engaging transmission shifter from park to drive. Audible clunk with lurching 1st to Second and Third gears.

Filed Nov 6, 2026 · Transmission · NY

Truck only had 30,000 miles on it and started downshifting funny. One loud clunk from the rear end on one occasion. Kept driving it and let Ford know. Went to pull out from a stop sign and absolutely no throttle response. I could see the gauge on my dash going up but nothing from transmission moving the truck forward. Brought to Ford and they replace the hybrid drive unit. Got truck back still had same issue. Brought it back to Ford again and they replaced the valve body on the transmission. Got the vehicle back and still shifting erratically. Drop the truck off and they said it was a problem in the valve body communicating. Received the truck back and now I have a high-pitched wine coming from the transmission. Ford says they're looking into it truck has been at Ford for 51 days as of today

Filed Nov 6, 2026 · Transmission · CA

Sudden hard shifts when driving, Truck only has 55,000 miles and it jumps gears from third to first on decent

Filed Oct 29, 2026 · Electrical, Fuel system · VA

My 2021 F-150 PowerBoost hybrid repeatedly lost propulsion while traveling on the highway in early October 2026, including four incidents on one trip around October 3. At approximately highway speed, the tachometer dropped to zero while the selector remained in D, and the truck coasted as if in neutral. There were harsh shifts around 9th/10th gear and difficulty accelerating beyond approximately 70 mph. A vehicle warning appeared. Disconnecting and reconnecting the battery temporarily restored operation. Sudden loss of drive power in highway traffic created a collision risk. The underlying cause has not been independently established. A Ford dealer's October 2026 inspection recorded an internal transmission hydraulic leak, clutch-disconnect trouble codes suggesting a hybrid drive unit concern, a recommendation to replace the transmission with the hybrid drive unit, and high-voltage battery cell-balance DTCs. More recently electric-driving mileage has remained at zero and the gasoline engine continues running while stationary. Severe shifting and vibration had varied between 2H and 4A modes. Around June 2025 the vehicle also stopped operating and was towed to the same dealer; I understand a 12-volt battery was replaced. Photographs from that period show Stop Safely Now and other warnings around 70,000 miles. I request investigation of whether that earlier incident and the present faults are related; I do not claim the same root cause has been proven. Exact diagnostic codes and earlier service details should be verified from the dealer records. The October intake odometer was recorded as 99,632; mileage at the highway incidents is not precisely known.

Filed Oct 23, 2026 · TX

Formal Financial Assistance Statement RE: Goodwill Cost-Share Request for 2021 F-150 King Ranch VIN: [XXX] Current Mileage: 119,000 miles Diagnostic Trouble Codes: P2704, P07E6, P2886, P2885 Dealer Repair Quote: $9,820.50 (Full Internal Transmission Replacement) To Whom It May Concern at Ford Motor Company and Dealer Leadership: I am formally requesting a corporate Goodwill Cost-Share for the catastrophic internal transmission failure on my 2021 F-150 King Ranch. While this vehicle is slightly past its 100,000-mile powertrain coverage, a total mechanical failure on a top-tier luxury vehicle at this stage—caused by well-documented, inherent factory defects—is entirely unacceptable. The diagnosis and fault codes pulled by the certified mechanic map directly to systemic, factory-recognized hardware flaws in the 10R80 10-speed transmission: 1. The Core Mechanical Failure (TSB 24-2209 / TSB 23-2250): My truck exhibits severe gear slippage and loud internal clunking, triggering code P2704 (Friction Element E Apply Time). As documented heavily by Ford’s own service network, this code is the direct result of a design flaw where the internal CDF clutch drum bushing migrates out of place under heat, slicing internal seals and destroying line pressure (triggering pressure codes P2885 and P2886). 2. The Safety Concern (Code P07E6): My transmission has also thrown code P07E6 (Unable to Engage Park), which directly mirrors the mechanical components Ford is actively tracking for transmission parking pawl issues. Ford Motor Company has issued multiple Technical Service Bulletins acknowledging this exact failure sequence and has since redesigned the CDF drum assembly to correct the manufacturing flaw. I should not be held solely responsible for a $9,820.50 repair bill caused by a component that Ford has publicly acknowledged was defectively designed from the factory. As a loyal Ford customer driving a premium vehicle, I expect Ford to stand behind its product. I am req INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION

Filed Oct 5, 2026 · Brakes, Transmission · WY

I purchased a used 2023 Ford F-150 PowerBoost on April 3, 2026. Within days, the vehicle began making a hard clunk during initial acceleration and when stopping. It also hesitates before accelerating, especially while transitioning between electric and gasoline operation. At times, pressing the accelerator does not produce an immediate or predictable response. The problem is worse when accelerating uphill. This creates a collision risk when entering traffic, crossing intersections, merging, or driving uphill. The clunk can be heard and felt through the vehicle. There is also a loud, high-pitched whine that follows engine speed and certain gear transitions and can become extremely loud at highway speeds. On April 22, a Ford dealer confirmed the clunk during acceleration and stopping. The dealer found excessive movement in the rear leaf-spring and shackle bushings and replaced them, but the clunk and hesitation continued. On May 11, the dealer confirmed the high-pitched whine, traced it to the Hybrid Drive Unit, consulted Ford’s escalation team, and replaced the unit. The whining, clunking, shifting irregularities, and hesitation remained and have progressively worsened. Another Ford dealer later inspected the vehicle, but its road test was fewer than two miles, remained below approximately 30 mph, and did not include highway driving, uphill acceleration, merging, or entering traffic. The conditions causing the most serious symptoms were therefore not evaluated. Associated warning lights or messages are UNKNOWN. The vehicle is now parked because I no longer consider it safe to drive. It is available for inspection upon request.

Filed Oct 2, 2026 · Driver assistance, Engine · SC

I have a 2026 F150 3.5L Twin-turbo ECOBOOST Hybrid King Ranch. I have experienced the following behaviors: (1) rough transitions when climbing grades; (2) rough transitions when braking hard/coming down grades; (3) 10-speed transmission - electric motor slippage during de-accerelation (especially when Adapted Cruise is activated); (4) transmission seems to have gear hunting at low speeds/stop and go; and (5) harsh shifts/unpredictable downshifting with adaptive cruise. I purchased this f150 since Ford advertised the Eco-Powerboost Hybrid/10-speed transmission was built for heavy duty hauling/towing. In my mind, heat is the silent killer of hybrid long-term reliability and longevity (I live in SC - a hot climate). In my mind, I feel this electric-gas powertrain guesses my driving habits instead of responding to my driving habits.

Filed Aug 3, 2026 · Transmission · TX

I am filing a safety complaint regarding a recurring, hazardous transmission failure during highway and incline driving (specifically experienced on mountain highway passes in Arkansas). While driving at highway speeds on uphill inclines, the transmission severely hesitates and struggles to downshift under load. When it finally engages, it violently slams into gear. During these episodes, the truck experiences a sudden loss of motive power and acceleration lag, accompanied by an engine RPM flare of over 400+ RPM. And most recently, I have Live diagnostic data captured during operation revealed a downshift delay of over 3 seconds where the powertrain control module commanded 8th gear, but the transmission physically remained stuck in 10th gear due to severe internal hydraulic pressure loss. This defect presents a severe safety risk on high-speed roadways. Sudden, unexpected loss of power while climbing grades or merging into traffic creates an immediate risk of rear-end collisions from surrounding vehicles. This issue directly correlates with Ford Technical Service Bulletin TSB 26-2287, which identifies axial movement/slippage of the CDF clutch cylinder sleeve as the root cause of internal fluid leaks and gear failure. Because this internal hardware failure causes unpredictable power delivery and driveability loss at highway speeds, I request that the federal safety agency investigate the 10R80/10R80-MHT transmission CDF drum sleeve defect as a critical safety hazard. Finally, Ford motor company, and most cases refuses to repair this known defect under warranty, many owners are experiencing this dealership pushback leaving them with a critical safety issue.

Filed Aug 1, 2026 · Transmission · TN

I'm reporting a transmission problem on my 2021 Ford F-150 with the 10R80 automatic transmission that I believe is a safety issue, not just a reliability one. The truck currently has about 55,000 miles on it. Right now the truck shifts hard and jerks every time I drive it, and it's especially bad at low speed. The worst situation is creeping through a parking lot looking for a spot, the transmission drops down into first with a clunk and a jerk, and then kicks again when it shifts back up out of first. It's rough enough that I've taken to putting the truck in "Eco" drive mode on purpose, because that softens the shift profile and takes a little of the edge off. Once I'm out of the low-speed stop-and-go and up to normal road speed, it seems to smooth out and drive okay, but the low-speed shifting is genuinely excessively rough. From what I've read, this matches the known 10R80 problem where the CDF clutch sleeve can move axially and cause hydraulic-circuit leaks, which leads to slipping, RPM flares, delayed or harsh engagement, and unexpected shifts. Everything I've found says this condition progressively worsens as the transmission degrades. That's exactly why I'm filing now rather than waiting. A hard, unpredictable shift or a loss of propulsion at the wrong moment — pulling into traffic, crossing an intersection, merging — can easily cause a collision. I don't want to wait until it fails in a dangerous spot and someone in my family gets hurt. I'd like the federal safety agency to investigate the 10R80 CDF clutch-cylinder/sleeve condition on Ford F-150s and to review Ford's warranty claims, dealer repair records, transmission replacements, and other owner complaints to determine whether this is a defect requiring a recall. Owners shouldn't have to wait for a dangerous failure before a known condition like this is addressed.

Filed Aug 11, 2025 · Transmission · NV

I was driving down the road and heard a loud clunking noise. Then I had lost power and the rear wheels were spinning out of control. There was a grinding/spinning/whirring noise coming from beneath the vehicle, sounded like from behind. I was fortunately able to regain control of the vehicle by shifting it into 4WD and avoided an accident. I brought the Vehicle to Gaudin Ford for repair and was informed it was a recalled part failure recall number 23S65. I had previously requested the recall repairs to be performed during routine maintenance, but was informed parts were not available. At this time, I've been 6 weeks without my truck and there is no end in site. It was insinuated that they might not even be making this part anymore, but the Ford recall center was unable to confirm or refute this. In the interim, I do not have a suitable replacement. I have been provided a small vehicle as a loaner, but I am unable to use this to drive >50 mile radius, I can't leave the state, can't loan it to my children, can't tow or haul. All the things I need my truck for, I'm unable to do. Either, I need access to a rental with similar capability to my truck without all the restrictions, or fix the truck in a timely manner, or provide me a suitable loaner without all the restrictions, or buy back my truck, or something. Instead I feel like I'm being held hostage by a company who is refusing to fulfill the recall responsibility in a timely and suitable manner. I have contacted the dealer, Ford customer service, and the Ford recall center on numerous occasions and have been told that other than getting an update when the part is available, there's nothing else they can do. The Ford case number is [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)