2014 Ford F-150 vehicle speed control problems

“Vehicle Information: 2014 Ford F-150 VIN [XXX] Transmission: 6R80 Description of the problem: My 2014 Ford F-150 has a dangerous transmission issue. It suddenly downshifts from higher gears (like 4th or 5th) into 1st gear while driving, without warning. This creates a serious risk of loss of control or rear-end collision. Ford performed the recall for the 6R80 PCM reprogramming, but the issue persists. The problem was not resolved, and the vehicle still downshifts abruptly. My vehicle has over 200,000 miles, so the extended warranty for the lead frame (program 19N01) no longer applies, but this is a serious safety defect that continues after the recall. I’m requesting that the NHTSA investigate this issue, as it seems the recall fix is not effective in all cases. Many other owners report similar symptoms even after the recall. Safety concern: I feel unsafe driving this vehicle. The transmission can cause a sudden deceleration in traffic, and I fear it may lead to an accident.”

“Major transmission failure that causes sudden unintended downshift to first gear, even at high speeds. This occurs often and randomly without warning, causing the engine to "redline", rear tires to slide and the vehicle to come to a near sudden stop. This is an extreme safety concern, especially in slippery road conditions as the vehicle could overturn or slide off the road or at a minimum be rear-ended for suddenly stopping unexpectedly on a freeway. This is a widely known problem by Ford. The local Ford service manager admitted that his 2013 F150 has the same issue and he continues to drive it because he tried fixing it by replacing the Molded Lead Plate in the transmission and that didn't resolve the problem. Remember, I noted this is a Ford Service Manager! Ford has issued a recall (24S37); however, the prescribed solution is to have the Powertrain Control Module (PCM) software updated and that prescribed fix actually makes the sudden downshifting happen more often. This is the cheapest, band-aid solution that Ford hides behind so they can say that they are addressing this issue. A second Ford dealership down the road actually admitted that they have…”

“The contact owns a 2014 Ford F-150. The contact stated while driving 75 MPH, the vehicle unintendedly decelerated to 45 MPH. The contact stated that the vehicle also hesitated while driving. The contact stated that the transmission unexpectedly downshifted without warning. The contact stated that the vehicle was pulling and decelerating unintendedly. There were no warning lights illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 24V444000 (Power Train). The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was unknown.”

“Truck randomly downshifts/ jerks really hard while driving all speeds. On 4/19 I was driving 65mph and truck felt like slamming brakes on, while speedometer pin bounces around, then a wrench showed up on the dash screen, I pulled over turned truck off sat for a few minutes, turned it back on, everything seemed finer and continued driving home, with no more issues. On 4/27 I was coming home from groccery store going about 30-35mph truck dropped down to first gear and then back to 4th gear. My pregnant wife and daughter were in the car when this happened. I've called local Ford dealership, and they ask me to come in for diagnosis, but I know this is a factory recall issue via 24V-444. I'm not sure if the truck is safe to drive, this randomly happens, but seems to be happening more and more frequently past 2 months or so”

“[XXX] was driving the 2014 F150 on a multi lane state road in the afternoon on a sunny and dry afternoon. The vehicle was traveling straight with steady traffic at an intense rate of speed (approximately 45-50 mph) when it all of a changed gears and became difficult for the [XXX] to control, causing the vehicle to hit a guard rail. There was no contributing factors to the accident other than the vehicle's malfunction (i.e. no negative weather, road signals, other vehicles, animal or plant obstructions, intersections, driver error, etc.). At the time of the impact, all of the vehicle's airbags deployed and the driver's seatbelt locked in place. There were no personal injuries - only property damage to the outside of the vehicle, the airbags and seatbelt. Thus far, Ford has refused to replace the airbags, seatbelt/repair the vehicle's property damage despite repeated requests. Ford only fixed the software problem associate with the recall and has taken the position that is the only remedy they are required to do. ( I will locate the police report and provide subsequently if needed)”

“On [XXX], about 20 minutes into my 30-minute commute, while driving at highway speed, my trucks transmission suddenly downshifted dramatically, jerking and throwing me forward in my seat and causing the truck to slow down so abruptly that I was almost rear ended, putting drivers around and behind me at risk of high-speed collisions. Less than 5 minutes later it happened a second time. This is the exact same abrupt transmission downshift issue that happened to me in this vehicle a few times before in early 2024. I received a Safety Recall notice on this known issue about a week after the first incident in 2024. I took my vehicle into the AutoNation Ford Dealer in Littleton, Colorado immediately after I received that notice and they supposedly 'fixed' the issue under the recall 24S37. Obviously, the issue has not been resolved. I am asking for a deeper look into the safety issue as I am sure I am not the only one this is happening to. I am also concerned that there were no warning lamps or messages that would indicate a problem that needed to be addressed! The truck is currently back at the AutoNation Ford Dealer in Littleton and is available for inspection. They…”