The contact owns a 2017 Ford F-150. The contact stated while driving 80 MPH, the transmission unexpectedly downshifted from eighth gear to first gear. Additionally, the vehicle jerked. The vehicle was driven to the independent mechanic where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The transmission was rebuilt, and the vehicle was repaired; however, the failure reoccurred. The contact stated that while driving at 35-40 MPH, the transmission was in tenth gear. No warning light was illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The dealer was made aware of the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 135,000.

- Attleboro, MA, USA

On [XXX] while driving at 70mph on [XXX] my 2017 F-150 began to shift into multiple gears causing the computer to shut down the trans causing me to coast from the center lane off to the shoulder. the truck shut down. and would not allow me to shift until the computer reset and then allowed me to go home. This happened again on Friday [XXX] leaving me stranded for 20 min in the center turn lane in Berea Ky. I Called the local for dealer who advised they had never seen this issue. I called Ford Customer Care and filed a complaint. on April 7th i took it to Richmond Ky AAMCO Transmission. They advised there is a TSB (technical service Bulletin on the LEAD Frame. The Lead frame houses all the electronic components to the shift solenoid plate. this frame unit is the culprit. and gets dirt between the solenoid electric pigtails causing shorts which causes the trans to freakout. Needless to say it cost me $1600 to get this issue fixed. they replaced the lead frame put in a fam spacer that protects the the sominoid connections, the also replaced the solenoid valve plate. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Berea, KY, USA

Drive at highway speeds and transmission down shift's on its own. The transmission indicator on the dashboard is gone or flashing. Sometimes get a service light then it goes away.

- Prospect, ME, USA

The contact owns a 2017 Ford F-150. The contact stated that while driving 30-35 MPH, the vehicle jerked while in first gear and briefly lost motive power before slamming into gear. The gear shifter notification disappeared. The contact pulled over to the side of the road and turned off the vehicle. The vehicle was restarted; however, the vehicle was driving roughly before downshifting to first gear. The vehicle was taken to a dealer who diagnosed that the transmission lead frame was damaged, which short-circuited the PCM (Power Train Module) and caused the transmission to fail. The contact was advised that the PCM and transmission needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure and transferred the contact to the NHTSA Hotline. The failure mileage was approximately 66,000.

- Homestead, FL, USA

The contact owns a 2017 Ford F-150. The contact stated that while his son was driving at various speeds, the vehicle jerked while in first gear and briefly lost motive power before slamming into gear. Unknown messages were displayed on the instrument panel. The contact stated there was an abnormal sound coming from the transmission. The vehicle was taken to a dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that an independent mechanic arrived at the residence to inspect the vehicle. The independent mechanic diagnosed the vehicle with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The contact stated that the failure had progressively gotten worse. The manufacturer was not notified of the failure. The vehicle was towed to the residence and had not been driven since the failure. The failure mileage was approximately 100,000.

- Santa Maria, CA, USA

My Ford F150 has started to down shift without me changing any gears. It downshifts and at times after the down shift when the vehicle stops and will not proceed. I need to wait or restart the truck before the truck will act normally. I have not been able to determine the variable that make it down shift on it own.

- Sarver, PA, USA

Multiple occasions in recent weeks where truck has downshifted rapidly and unexpectedly at cruising highway speeds from 6th gear to 2nd. First incident was on March 8, 2025, while pulling a horse trailer at highway speed of 55mph where truck downshifted from 6th to 2nd causing a sudden slow down of vehicle and risk of crash while pulling trailer. Most recent incident occurred while accelerating as truck was shifting upward through gears it suddenly downshifted to 2nd causing rear wheel lock up. In all incidents the check engine light would come on, pulling off to side of road, turning power off and back on again would reset the truck and check engine light would go away. On April 10, 2025 the truck was taken to the local Ford dealer for a routine service and issues with the transmission downshifting were pointed out and asked to be looked at. The report said there is "TCC slipping actual and TCC desire slipping 100RPMS". The recommend repair was a complete transmission replacement due to high milage. Vehicle currently has 121k miles. I declined repairs at that time due to cost of complete transmission replacement. On April 26, 2025 truck was taken to local SMOG station for routine SMOG inspection for DMV. Truck failed test due to check engine light being on and error code being reported. The error code being reported is "P0720 - Output Speed Sensor Circuit".

- Ramona, CA, USA

The transmission has been chattering, slipping, and making weird noises since I bought the truck. There are times where the truck will roll forward several feet after I've placed the shifter in park and remove my foot from the brake pedal. In my opinion these issues are definitely dangerous and can get someone seriously injured or fatalities could occur.

- Calera, AL, USA

I have had 2 incidents where my vehicle has suddenly shifted into 1st gear at highway speeds(65-70+mph). I was alone in the vehicle each incident.This caused a sudden and violent loss of speed and nearly locking up the rear wheels, both while entering the freeway. Vehicles behind me had to take evasive action and I had to quickly maneuver to the side of the road. The vehicle operated normally immediately following both incidents. This truck has a 10R80 transmission and has known failures of the CDF drum due to poor construction/quality of internal bushings(pressed in). Ford has since revised this(welded, anti-walk bushing) in newer vehicles but has not addressed the vehicles prior to the revision. I have had no warning lights or codes, nor any other indications this issue was occurring. This vehicle has been maintained well and all services/intervals performed at Ford service departments. I have an appointment in the coming weeks with a local Ford service department for a diagnostic check. The service rep advised based on details I have provided I have CDF failure. This issue has a cascading effect and may require full transmission replacement to rectify. All warranties have expired, repair costs can exceed 30% of current vehicle value.

- La Vernia, TX, USA

The contact owns a 2017 Ford F-150. The contact stated while driving at an undisclosed speed on an incline, the vehicle suddenly jolted and briefly started to shudder until reaching the top of the hill. The vehicle returned to normal functionality, but the failure became a regular occurrence. The check engine warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was approximately 93,000.

- Ocala, FL, USA

WHILE DRIVING 50 MPH TRUCK DOWNSHIFTED RADICALLY CAUSING REAR WHEELS TO LOCK UP AND SQUEEL/ simultaneously THE PRNDL LIGHT IN DASH FLICKERS ALONG WITH THE GEAR RANGE

- Mooresville , IN, USA

Transmission slightly lunges forward after a delay in pushing the gas pedal down - like a throttle surge. The item is not available for inspection. Safety put at risk relative to unexpected slight acceleration. Independent Service Center has verified the problem on 03.25.2025 after I asked for a diagnosis. I was given a TSB 23-2250 for further processing with the local Ford Dealer, since vehicle was under a paid extended warranty. The vehicle is in the shop now for faulty phasers, leaking oil pan, and the subject hesitency and surge of the transmission. The suspected transmission problem has not yet been confirmed by the Ford Dealer Service Center. There were no warning messages or warning lamps indicating I had a problem. The action relative to the acceleration surge just happened. Attachment 1 was the mechanics invoice for making a diagnosis not a repair Attachment 2 was my note to the mechanic specifically outlining items to check for verification Attachment 3 was a TechServiceBulletin he stapled to my invoice informing me that there was a TSB out on the transmission.

- Snohomish, WA, USA

Transmission error codes P0706 and P0707. Causes vehicle to be non operational. Cause is due to a bad sensor the lead frame in the valve body of the 6R80 transmission. On the 2011-2014 model years there was a recall issued, but the problem still exists I. The 2015-2017 model years. In my case, the module is failing at 8yrs/92750 miles.

- Troy, IL, USA

Have had issues with transmission for years and was checked previously and dealer said no problems. Seems like it was down shifting for no reason. No recalls. In 2024 while driving I experienced sudden loss of power and seemed like down shifting from transmission on major highway and almost came to a stop in the middle of the lane. This was frightening! This continued to happen. Took to dealer and they said I had to replace the transmission.

- Yorktown, VA, USA

While driving at highway speed, transmission will downshift into 5th gear mostly, but at times down to 3rd gear. Street driving, it will at times downshift all the way down to 1st gear. Whenever switching from Drive to reverse, it won't go. Have to switch back and forth between the two until it engages. Noticed this issue doesn't happen until the transmission temperature is over 200?.

- Rockwall, TX, USA

On a regular and routine basis, the vehicle is known to have difficulty in shifting between 3rd and 5th gear. Often times, while shifting, the transmission will hesitate to shift before lurching into the next gear. The vehicle is equipped with a 10R80 transmission and has previously encountered issues with the Cam Phasers. Cam Phasers have been replaced, but no work has been performed on the transmission. Driver can replicate the issue on almost every drive.

- Cypress, TX, USA

On March 30th I filed a complaint #11654561. Since that time the vehicle has progressively gotten worse. Traveling at approximately 55 mph the tires suddenly locked up/stopped rolling at normal speed, jerked the truck and I was flung forward. the vehicle would not go over 15 mph AGAIN! Then, on [XXX] I was traveling home approximately 65 mph and truck downshifted and wouldn't move beyond 20 mph. This is getting out of control that I continue to have transmission problems with this vehicle. Talking with a Ford representative he said many problems have been with the transmission conductor plate, there is a defect and having it replaced with any product other than the Ford piece seems to resolve the problem. This is incredible, Ford is telling me what the problem is and won't fix it. How many other people are going through this same problem and we as Ford customers are being scammed of safety repairs. My truck is invaluable to trade in and I'm terrified to drive it. Please, hear my distress and help with a recall to fix our vehicles. Additionally, I just bought this truck approximately 7 months ago. For the 1st 30 days all was OK but as soon as I started traveling at higher speeds this problem appeared. I am afraid for not only my safety but for other drivers if this truck continues to act not safe in traffic. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- St Petersburg, FL, USA

The contact owns a 2017 Ford F-150. The contact stated while driving at an undisclosed speed, the transmission unintendedly downshifted. No further information was available. The vehicle was taken to an unknown dealer, where it was diagnosed that there were metal shavings inside the transmission, causing the transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 12,000.

- Gruetli Laager, TN, USA

While maintaining a fixed speed (~55mph) up a slight incline, the vehicle rapidly shifted from 6th gear to a lower (presumably 1st given rpm/torque change) gear. While in normal use at that speed in 6th gear, the torque converter is in a "locked up" (direct mechanical connection) state- the sudden gear change plus "locked up" torque converter caused the engine speed to rapidly jump past its "red-line." Unable to compensate for the instant change in torque, the rear wheels locked up and the truck began to slide- I was able to regain control of the vehicle as it slid off the road and come to a stop. No injuries. After stopping briefly to assess the situation, I got underway- it became quickly obvious that the transmission has sustained extensive damage in the incident as it began to "shudder" intermittently. Further research and testing by myself using consumer diagnostic tools revealed that the torque converter sustained damage, particularly in the internal clutch (the mechanism that allows for a direct engine to transmission connection at high speed for better fuel economy), which is now failing to fully engage and disengage at some speeds and causing the transmission to "shudder". This conclusion was reached by observing the "desired torque converter slip" (measured in rpm) and comparing to the "measured torque converter slip" during a variety of conditions. It is unclear to me what caused the sudden gear change, but it caused extensive (and expensive) damage to my vehicle. This problem presents a major safety concern to myself and other vehicles around me and could result in a crash if it occurs again. Other F150s (one body-style older I believe) with the same transmission had a similar recall recently- had this also been addressed by the manufacturer on the 15-17 trucks, this incident (and extremely costly repair) may have been prevented.

- Forestdale , MA, USA

Vehicle would downshift to 3rd or 1st gear and will not shift out of that gear at any speeds. Would happen at randomly at highway speeds or just from accelerating from a stop, causing dangerous speed changes while on highway. Turning engine/keys completely off and back on will reset the error. Service wrench light would also come on occasionally when this happens. This issue has been prevalent for the last few years since after hitting 60k miles mark. Inspection is available upon request. Issue cannot be reproduced on demand, only randomly. Issue has not been evaluated by any service technicians or dealerships or any other persons except myself using a diagnostics code scanner. Using a diagnostic scanner shows error code "P0722-00 Output Shaft Speed Sensor Circuit No Signal - Not Current DTC."

- Seaside, OR, USA