2014 Ford F-150 problems

POWER TRAIN

After transmission had programming update it never shifted properly. Took it to the dealer for diagnostic and they said nothing wrong. Transmission failed at only 82000 miles.

NHTSA complaint #11758952 — an unverified report by a vehicle owner.

POWER TRAIN

My 2014 Ford F-150 was previously included in Ford Safety Recall 24S37 regarding unintended transmission downshifts caused by an intermittent Output Shaft Speed (OSS) sensor issue. The vehicle was inspected by a Ford mobile technician on January 20, 2026. No qualifying codes were found at that time, and the recall was closed under my VIN. The recall involved the risk of an unintended downshift into first gear that could result in loss of vehicle control. On August 20, 2026, while my husband was driving approximately 40-50 mph, the truck suddenly downshifted and rapidly lost speed. The vehicle would not accelerate beyond approximately 10-15 mph and had to be moved into a parking lot to avoid remaining in traffic. After parking, the truck would no longer move under its own power. The wrench warning light illuminated and the vehicle became undrivable. The symptoms experienced appear substantially similar to those described in Recall 24S37. The dealership has indicated that the current failure may involve the transmission lead frame and speed sensor system, but I am concerned that this event may be related to the same transmission downshift condition addressed by the recall. I am requesting that NHTSA document and review this incident.

NHTSA complaint #11758660 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

My 2014 Ford F-150 was previously included in Ford Safety Recall 24S37 regarding unintended transmission downshifts caused by an intermittent Output Shaft Speed (OSS) sensor issue. The vehicle was inspected by a Ford mobile technician on January 20, 2026. No qualifying codes were found at that time, and the recall was closed under my VIN. The recall involved the risk of an unintended downshift into first gear that could result in loss of vehicle control. On August 20, 2026, while my husband was driving approximately 40-50 mph, the truck suddenly downshifted and rapidly lost speed. The vehicle would not accelerate beyond approximately 10-15 mph and had to be moved into a parking lot to avoid remaining in traffic. After parking, the truck would no longer move under its own power. The wrench warning light illuminated and the vehicle became undrivable. The symptoms experienced appear substantially similar to those described in Recall 24S37. The dealership has indicated that the current failure may involve the transmission lead frame and speed sensor system, but I am concerned that this event may be related to the same transmission downshift condition addressed by the recall. I am requesting that NHTSA document and review this incident.

NHTSA complaint #11758660 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

My 2014 Ford F-150 was previously included in Ford Safety Recall 24S37 regarding unintended transmission downshifts caused by an intermittent Output Shaft Speed (OSS) sensor issue. The vehicle was inspected by a Ford mobile technician on January 20, 2026. No qualifying codes were found at that time, and the recall was closed under my VIN. The recall involved the risk of an unintended downshift into first gear that could result in loss of vehicle control. On August 20, 2026, while my husband was driving approximately 40-50 mph, the truck suddenly downshifted and rapidly lost speed. The vehicle would not accelerate beyond approximately 10-15 mph and had to be moved into a parking lot to avoid remaining in traffic. After parking, the truck would no longer move under its own power. The wrench warning light illuminated and the vehicle became undrivable. The symptoms experienced appear substantially similar to those described in Recall 24S37. The dealership has indicated that the current failure may involve the transmission lead frame and speed sensor system, but I am concerned that this event may be related to the same transmission downshift condition addressed by the recall. I am requesting that NHTSA document and review this incident.

NHTSA complaint #11758660 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2014 Ford F-150. The contact stated that while driving at an undisclosed speed, the wrench warning light illuminated, and the transmission unexpectedly downshifted to third gear. Additionally, the vehicle immediately went into LIMP Mode and failed to accelerate as needed. The contact associated the failure with NHTSA Campaign Number: 24V444000 (Power Train); however, the VIN was not included. The dealer was contacted and diagnosed the vehicle with molded leadframe failure. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was unknown.

NHTSA complaint #11758323 — an unverified report by a vehicle owner.

SERVICE BRAKES

On July 30, 2026, while operating my 2014 F-150 under normal driving conditions, the dash cluster information screen displayed a "Brake Fluid Level Low" warning. Moments later, the brake system experienced a sudden/catastrophic loss of front braking performance. The brake pedal became severely spongy and traveled completely to the floorboard, requiring drastically increased distance to bring the vehicle to a stop. Due to ineffective braking, I missed the driveway of the parking lot I chose to inspect/determine what the issue was and subsequently could not stop the truck within the confines of the parking space. This brake failure put me, my family as well as oncoming traffic and pedestrians in jeopardy of injury or death due to collision. A mechanical inspection of the vehicle revealed the rear cup seal inside the brake master cylinder had failed. This internal seal failure allowed hydraulic brake fluid to bypass the cylinder and leak directly into the vacuum brake booster, completely contaminating the booster assembly. Without effective braking, the truck was deemed too dangerous to drive so it was parked and unused until replacement parts could be installed. This specific component failure, internal seal degradation, and resultant fluid contamination of the booster is identical to the safety defect detailed in NHTSA Campaign #16V345000 (Ford Recall #16S24). However, this specific vehicle was excluded from that safety campaign solely because it is equipped with the 6.2L V8 engine, rather than the recalled 3.5L engine, this despite using the identical Hitachi master cylinder. The Ford Corporate Consumer Relations was unwilling to assist with the purchase of replacement of the master cylinder, booster but did offer to record my complaint and issue a case number for engineering review. The defective master cylinder and contaminated booster assembly have been retained for inspection if required or requested.

NHTSA complaint #11758242 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2014 Ford F-150. The contact stated that the vehicle was previously repaired under NHTSA Campaign Number: 26V378000 (Power Train); however, the failure occurred after the recall repair was performed. The contact stated that while driving at an undisclosed speed, the transmission unexpectedly downshifted with the check engine warning light illuminated. The vehicle was taken to an independent mechanic, where a diagnostic trouble code for the transmission was retrieved. The vehicle then failed to restart and was towed to the dealer. The dealer determined that the molded lead frame needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 127,000.

NHTSA complaint #11756923 — an unverified report by a vehicle owner.

POWER TRAIN

While driving, the malfunction indicator light (yellow wrench) will illuminate, followed by a complete loss of communication between the instrument cluster and the transmission. The speedometer immediately drops to zero even though the truck is still moving, and other information, such as the fuel range, goes blank. The truck will also struggle to accelerate from a stop, almost as if it is starting in second gear. If I shut the truck off and restart it, everything returns to normal. Before the malfunction light comes on, the transmission will often make a very hard downshift or remain stuck in first gear and refuse to shift as speed increases. After a few seconds, the warning light appears, communication is lost, and the transmission shifts again, often very harshly. This seems to happen more often at lower speeds. This creates a serious safety risk because I lose all knowledge of my speed while driving, and the transmission may not respond properly when pulling into traffic or trying to reach a safe place to pull over. The dealer is aware of the problem. Recall 24S37 was supposed to correct it, but it did not. Recall 26S45 acknowledges that the original repair was not effective for all vehicles, but my VIN is not included even though I am experiencing the same failure. I have reported the issue to the dealer multiple times by phone and through their online service system. A dealership representative told me I am not the only customer experiencing this problem, but the dealer has not inspected the truck since completing Recall 24S37 and has not taken action or returned my calls. The malfunction indicator light consistently appears about four seconds after the transmission begins acting abnormally and immediately before the instrument cluster loses communication with the transmission. I am now nervous to drive the truck, especially from a stop or at lower speeds, because I never know when the problem will occur.

NHTSA complaint #11755274 — an unverified report by a vehicle owner.

POWER TRAIN

The vehicle experienced an uncommanded, severe downshift from 5th gear directly into 1st gear while traveling at approximately 45 mph on a public road. This caused sudden, violent engine braking and an immediate drop in speed, creating an extreme rear-end collision hazard and potential loss of vehicle control. This vehicle previously received the PCM software update under Ford Safety Recall 24S37 (NHTSA Campaign 24V444). The software update failed to prevent the sudden downshift event caused by the failing Output Shaft Speed (OSS) sensor on the transmission molded lead frame. When contacting Ford Corporate Customer Service and local dealerships, Ford refused to cover diagnostic scanning or hardware replacement, claiming the recall is marked "completed" in their database because the software patch was installed more than 12 months ago. A software update that fails to prevent a 5th-to-1st downshift leaves a defective physical sensor on the road. Ford is refusing to evaluate or remedy a persistent, life-threatening recall failure on a 6R80 transmission.

NHTSA complaint #11754376 — an unverified report by a vehicle owner.

POWER TRAIN

Vehicle Information: Year: 2014 Make: Ford Model: F-150 Component: Power Train (Transmission / Powertrain Control Module) Dealership Involved:Midway Motors Ford, 2075 E Kansas Ave, McPherson, KS 67460 Complaint Description:I am filing a formal safety complaint against Ford Motor Company and Midway Motors Ford in McPherson, KS, for failing to provide a free remedy under active federal safety recall 24S37 (NHTSA Campaign 24V444).My 2014 Ford F-150 was brought to the dealership to complete safety recall 24S37, which addresses severe, sudden transmission downshifts. The dealership performed a software update to the Powertrain Control Module (PCM). Immediately following this update, the truck's drivability severely deteriorated, and the transmission began violently slamming into 3rd gear, locking itself into a dangerous transmission fault "limp mode." The diagnostic scans post-update indicate a failure of the molded lead frame/speed sensor. According to Ford's official technical service bulletin for recall 24S37, physical replacement of the molded lead frame is an explicitly authorized remedy when diagnostic codes appear following the software flash. However, both the local servicing dealership (Midway Motors Ford) and Ford Corporate Customer Service are actively refusing to perform this physical safety repair free of charge. They are wrongfully claiming that because my vehicle has over 200,000 miles, it is disqualified from financial assistance. They are confusing a federal, non-expiring safety recall with an older, expired warranty extension program (19N01).By refusing to replace the defective lead frame that their own software update triggered into an active failure state, the manufacturer and dealer are leaving my vehicle in an unsafe, undrivable condition and violating federal recall mandates. I request that NHTSA intervene to compel Ford to complete the mandatory safety recall remedy at zero cost to me.

NHTSA complaint #11754506 — an unverified report by a vehicle owner.

UNKNOWN OR OTHER

Vehicle Information: Year: 2014 Make: Ford Model: F-150 Component: Power Train (Transmission / Powertrain Control Module) Dealership Involved:Midway Motors Ford, 2075 E Kansas Ave, McPherson, KS 67460 Complaint Description:I am filing a formal safety complaint against Ford Motor Company and Midway Motors Ford in McPherson, KS, for failing to provide a free remedy under active federal safety recall 24S37 (NHTSA Campaign 24V444).My 2014 Ford F-150 was brought to the dealership to complete safety recall 24S37, which addresses severe, sudden transmission downshifts. The dealership performed a software update to the Powertrain Control Module (PCM). Immediately following this update, the truck's drivability severely deteriorated, and the transmission began violently slamming into 3rd gear, locking itself into a dangerous transmission fault "limp mode." The diagnostic scans post-update indicate a failure of the molded lead frame/speed sensor. According to Ford's official technical service bulletin for recall 24S37, physical replacement of the molded lead frame is an explicitly authorized remedy when diagnostic codes appear following the software flash. However, both the local servicing dealership (Midway Motors Ford) and Ford Corporate Customer Service are actively refusing to perform this physical safety repair free of charge. They are wrongfully claiming that because my vehicle has over 200,000 miles, it is disqualified from financial assistance. They are confusing a federal, non-expiring safety recall with an older, expired warranty extension program (19N01).By refusing to replace the defective lead frame that their own software update triggered into an active failure state, the manufacturer and dealer are leaving my vehicle in an unsafe, undrivable condition and violating federal recall mandates. I request that NHTSA intervene to compel Ford to complete the mandatory safety recall remedy at zero cost to me.

NHTSA complaint #11754506 — an unverified report by a vehicle owner.

SERVICE BRAKES

While driving, brakes pushed to floor, and vehicle alarm beeped showing Low brake fluid sensor had tripped. Brakes not working properly, pedal goes to floor, brake fluid added to refill and fluid emptied out of master cylinder reservior two more times, vehicle inoperable to drive with no brake pressure. Open safety recalls for Ford F150 models 2013-2014 #16S24, and for F150 Models 2014-2017 #20S31, both specifically for the 3.5LV6 Ecoboost engine, which I have, but Ford is saying that mine is not covered for the same brake master cylinder / brake booster issue.

NHTSA complaint #11754442 — an unverified report by a vehicle owner.

STEERING

Read out is showing power steering assist fault. Steering is locking up and screaming. Shows there was a recall for this but that this vin was not on the recall. now it is saying service advance trac.

NHTSA complaint #11753733 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2014 Ford F-150. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the transmission unexpectedly downshifted. The RPM's increased and the powertrain warning light illuminated. The contact stated that the vehicle was repaired under NHTSA Campaign Number: 24V444000 (Power Train) months prior to the failure. The dealer was made aware of the failure but provided no assistance. The contact was informed that the diagnostic test and repair were not covered under the recall. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 206,000.

NHTSA complaint #11753557 — an unverified report by a vehicle owner.

POWER TRAIN

The contact owns a 2014 Ford F-150. The contact stated that while driving 70 MPH, the rear wheels locked up, causing the contact to lose control of the vehicle, and the vehicle stopped suddenly. The contact regained control of the vehicle after 3 attempts. The contact stated that there was no warning light illuminated on the instrument panel. The contact referenced NHTSA Campaign Number: 26V237000 (Power Train); as a possible cause for the failure; however, the VIN was not included in the recall repair. The vehicle was taken to the dealer but was not covered under the recall. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 150,000.

NHTSA complaint #11753063 — an unverified report by a vehicle owner.

VEHICLE SPEED CONTROL

I was driving on the highway at about 60-70 mph and my truck shifted into first gear with my tires basically locking up and slid along the highway. I brought my truck into a ford dealership and they told me they couldn’t get it to replicate the incident so they turned me away. I personally replaced my battery terminals and it hasn’t done it again. Now I will be driving and randomly my truck will rev bomb and my gauge cluster will shut off and it shows up with an orange wrench symbol but when I turn the car off it resets. The research I’ve done it can come from a speed sensor or the lead frame. I know 2014 fords have a recall on transmissions but my truck does not have a documented one but there is something funky going on with it.

NHTSA complaint #11752915 — an unverified report by a vehicle owner.

ELECTRICAL SYSTEM

I was driving on the highway at about 60-70 mph and my truck shifted into first gear with my tires basically locking up and slid along the highway. I brought my truck into a ford dealership and they told me they couldn’t get it to replicate the incident so they turned me away. I personally replaced my battery terminals and it hasn’t done it again. Now I will be driving and randomly my truck will rev bomb and my gauge cluster will shut off and it shows up with an orange wrench symbol but when I turn the car off it resets. The research I’ve done it can come from a speed sensor or the lead frame. I know 2014 fords have a recall on transmissions but my truck does not have a documented one but there is something funky going on with it.

NHTSA complaint #11752915 — an unverified report by a vehicle owner.

ENGINE

I was driving on the highway at about 60-70 mph and my truck shifted into first gear with my tires basically locking up and slid along the highway. I brought my truck into a ford dealership and they told me they couldn’t get it to replicate the incident so they turned me away. I personally replaced my battery terminals and it hasn’t done it again. Now I will be driving and randomly my truck will rev bomb and my gauge cluster will shut off and it shows up with an orange wrench symbol but when I turn the car off it resets. The research I’ve done it can come from a speed sensor or the lead frame. I know 2014 fords have a recall on transmissions but my truck does not have a documented one but there is something funky going on with it.

NHTSA complaint #11752915 — an unverified report by a vehicle owner.

POWER TRAIN

See attached document for complaint.

NHTSA complaint #11752357 — an unverified report by a vehicle owner.

POWER TRAIN

I brought my 2014 Ford F-150 to Gentilini Ford in Woodbine NJ in response to recall notice number 24S37 on XXX for an issue with the molded leadframe on the 6R80 transmission. The recall gave the option of reprogramming the existing leadframe or replacing the leadframe. My leadframe was reprogrammed and not replaced. Shortly after the recall while driving back to [XXX] from NC, the transmission dropped into first gear while cruising down a narrow road causing the back tires to chirp. Several dash lights then came on and the transmission went into limp mode which included rough shifting, sluggish starts, no speedometer or several gauges. When I made it to a point where it was safe to pull over, I immediately turned off the truck and did a visual inspection to make sure there was no damage. I returned to my truck began researching the issue online and quickly realized that it was caused by the actions taken during the recall. I placed several calls to Ford with no recourse. In late May of 2026, I learned of a new recall aimed at the correction of the recall and Ford was replacing the leadframes that were reprogrammed. Upon further research, I learned that late year 2014 f-150's with the 6R80 transmission were not included in the recall. I am reaching out for help in forcing Ford to include my truck in the recall. The issue happens almost every time I drive now and will eventually reset back to normal mode after several stops and restarts. It is a very dangerous situation when my speed drops dramatically on the narrow roads of North Carolina. There are no shoulders on the roads and the only place to pull over in the majority of situations is into a drainage ditch. Please help!!! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA complaint #11751788 — an unverified report by a vehicle owner.

SERVICE BRAKES, HYDRAULIC

The contact owns a 2014 Ford F-150. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed; however, the vehicle failed to stop as intended. The contact stated that the brake pedal was depressed to the floorboard, and the vehicle rolled to a complete stop. No warning lights were illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with a leaking brake cylinder. The contact was informed that the brake cylinder was leaking onto the brake booster. The contact was informed that the brake cylinder, the brake booster, and the brake fluid reservoir needed to be replaced. The vehicle was not repaired. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 170,000.

NHTSA complaint #11751640 — an unverified report by a vehicle owner.

SERVICE BRAKES

My 2014 Ford F-150 previously received Ford's brake master cylinder recall repair under the previous owner in November, 2016. On XXX, at approximately 108,372 miles, we were towing our travel trailer and had just begun a planned vacation. Within approximately five minutes of leaving home, a warning chime sounded and a "Brake Fluid Low" warning appeared on the instrument panel. I immediately exited the roadway and pulled into the nearest gas station to determine the cause. Within moments, the brake pedal traveled completely to the floor, leaving the vehicle with virtually no braking capability and making it unsafe to operate. Because the truck was towing our travel trailer, we had to disconnect the trailer in the gas station parking lot. The truck could not be driven safely and had to be towed to Kent Parsons Ford in [XXX]. My son had to bring his own truck to tow our travel trailer home because our truck was no longer capable of doing so safely. Kent Parsons Ford inspected the vehicle and documented the following diagnosis on the repair order: "Verified customer's concern. Found master cylinder seal failed and filled booster with DOT fluid." The dealership replaced the brake master cylinder, brake booster, brake fluid, and related components. The failed components may no longer be available for inspection because they were replaced during the repair. I paid $1,793.38 for the repair. The dealership's diagnosis documents the same failure mechanism described in NHTSA Recall 20V-332 (Ford Safety Recall 20S31), involving failure of the master cylinder seal that allows brake fluid to leak into the brake booster, reducing braking performance. Because this vehicle had already received Ford's recall remedy in November 2016, I am submitting this complaint to document that an authorized Ford dealership identified the same failure mechanism after the recall repair had already been completed. I respectfully request that NHTSA investigate. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C.

NHTSA complaint #11751105 — an unverified report by a vehicle owner.

POWER TRAIN

While driving on the highway Vehicle appeared to downshift into to low of a gear range causing me to almost lose control of the vehicle

NHTSA complaint #11750806 — an unverified report by a vehicle owner.

POWER TRAIN

On July 2, 2026, the vehicle was brought to an authorized dealer for a scheduled appointment to resolve active Safety Recall 26S45 / NHTSA Campaign 26V378 (6R80 transmission sudden downshift defect). The dealership refused to perform the recall software update, claiming it was not needed for the vehicle. On July 12, 2026, while traveling at highway speeds on a public highway, the transmission suffered the exact un-commanded sudden downshift described in the recall. The violent mechanical force instantly snapped the rear driveshaft in half and severed the undercarriage air conditioning lines, creating a sudden, life-threatening loss of control and wheel speed reduction on a live highway. The vehicle is now permanently disabled due to the dealer's refusal to fulfill a federal safety mandate.

NHTSA complaint #11750595 — an unverified report by a vehicle owner.