2021 Ford F-450 Sd

The Office of Defect Investigations (ODI) has received 27 complaints alleging diesel fuel leaks due to a fracture in the secondary fuel filter housing in model year (MY) 2015-2021 Ford Motor Company (Ford) F-250, 350, 450, and 550 Super Duty vehicles equipped with 6.7L diesel engines. Of these complaints, 12 describe an engine compartment fire. The proximity of the secondary fuel filter to high heat sources creates a potential for autoignition thermal events and fires. ODI has contacted the vehicle manufacturer, Ford, and the filter manufacturer, Allevard Sogefi USA (Sogefi), and learned that the low-pressure fuel system is capable of a maximum operating pressure of 8.5 Bar, while the secondary fuel filter is only tested to seven (7) Bar during the manufacturing process. Additionally, changes starting in 2022 by both Ford and Sogefi align with a lack of similar complaints on MY 2022 and newer vehicles. ODI is opening this Preliminary Evaluation (PE) to evaluate the severity of the potential problem and to fully assess the potential safety-related problems. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

In January 2021, the Office of Defects Investigation (ODI) opened a Recall Query (RQ21-001) to assess allegations of post-recall remedy uncommanded tailgate openings in model year (MY) 2017-2019 F-250/350/450 Ford trucks. Besides the recall remedy launched in January 2020, Ford also implemented a production update in November 2019.  At the time of the RQ opening, ODI had received eleven (11) Vehicle Owner Questionnaires (VOQs). ODI sent an Information Request (IR) to Ford in February 2021. In numerous meetings after receiving their IR response, Ford highlighted the drop in claims since the recall and production update and communicated how they were unable to verify the owners’ complaints or replicate the concern. Despite this, Ford began developing ways to prevent uncommanded tailgate openings from various human, mechanical or electrical causes. Based on testing, Ford issued a Customer Satisfaction program, 21M05-S1/S2/S3, to further address the potential of unintended tailgate openings. This work was applied to vehicles being produced as of December 20, 2021.  The program began for already delivered vehicles on July 22, 2022. The covered models include 2017-2022 F-250, 350, 450, 550, 650 and 750 Super Duty and 2020-2022 F-600 Super Duty trucks. ODI has received 39 VOQs between February 24, 2020, and December 15, 2023, alleging uncommanded tailgate openings.  In a detailed analysis, none of the vehicles in the VOQs were found to have received the Customer Satisfaction update. Since ODI has not received any complaints of post-Customer Satisfaction program tailgate openings, this office is closing this Recall Query. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The Agency reserves the right to take additional action if warranted by future circumstances. To review the ODI reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.

Failure of a $70 thermocouple sensor in the air conditioning unit requires replacement of the entire evaporative cooler, which requires removal and reinstallation of the entire dash from the vehicle. This should be a part serviceable without such extensive work.

NHTSA ID

11742943

Incident

Jun 8, 2026

Technician was airing the tires - zipper ruputer occured on the inside of the tire. 225/70R19.5

NHTSA ID

11720607

Incident

Feb 9, 2026

The contact owns a 2021 Ford F-450 SD. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.

NHTSA ID

11687332

Incident

Sep 15, 2025

The contact owned a 2021 Ford F-450 Super Duty. The contact stated that while driving 35 MPH on an 8 percent decline and pulling a trailer, the vehicle slightly responded upon depressing the brake pedal. Additionally, the transmission failed to downshift and was stuck in 10th gear. The contact pumped the brakes; however, the failure persisted. The contact drove into the shoulder of the roadway, and the vehicle was able to stop. The contact noticed smoke, and upon inspecting underneath the vehicle, the contact noticed that the rear brakes were on fire. The contact was able to extinguish the fire with a fire extinguisher. There was no injury sustained. The vehicle was towed to the residence of the contact's friend, where the trailer was detached from the vehicle. The vehicle was driven to the dealer, where it was test-driven, and the contact was informed that no failure was found. The vehicle was taken back to the residence of the contact's friend. The contact stated that upon depressing the brake pedal to start the vehicle, the brake pedal travelled all the way to the floorboard. The vehicle was taken back to the dealer and traded for another vehicle. The vehicle was being repaired. The manufacturer was notified of the failure and referred the contact to the dealer for assistance. The failure mileage was approximately 78,000.

NHTSA ID

11687296

Incident

Sep 1, 2025

Mileage

78,000 mi

VEHICLE SHUT DOWN WHILE IN MOTION ON HIGHWAY WHICH CAUSED FOR BRAKES AND STEERING TO FAIL. VEHICLE WAS TOWED TO SUN STATE FORD DEALERSHIP WHERE THEY DID A DIAGNOSIS. THEY FOUND EXCESSIVE AMOUNTS OF METAL IN THE HIGH PRESSURE FUEL SYSTEM. THEY HAD TO REPLACE THE ENTIRE FUEL SYSTEM PLUS REPLACED ALL INJECTORS WHICH NOW HAS AN OPEN INVOICE OF $15,923.97. AFTER RESEARCH WE FOUND OUT THAT THERE IS A RECALL ON THE CP4 WHICH IS THE MANUFACTIRE RECALL NUMBER 24S78 AND NHTSA RECALL NUMBER 24V957. FORD IS NOT WILLING TO COVER THE COST OF THE RECALL REPAIRS AND THE DEALERSHIP IS NOT COOPERATING AS WELL. THIS IS A COMPANY VEHICLE LOSING THE COMPANY $3K PER DAY.

NHTSA ID

11676722

Incident

Jul 14, 2025

My 2021 Ford F 450 will not actuate the electric over hydraulic brakes on my gooseneck trailer. I was hauling my tractor to one of my hay fields when a car pulled out in front me. I apply my foot to the brake pedal and the truck and trailer did not slow down liked it use to and I almost rear ended the vehicle that pulled out in front of me. After this I try to apply just the trailer brakes using the brake actuator on the dash and the trailer brakes never operated. I check my fuses and they were good and I checked the trailer using another truck and they worked. I then checked the trailer wiring connections on my truck and they were good. I have done a manual reset on my trucks programming and the truck still will not activate the trailer brakes. Please help.

NHTSA ID

11673852

Incident

Jul 13, 2025

The contact owns a 2021 Ford F-450 SD. The contact stated that the vehicle was designed with a feature known as neutral idle control (NIC), where the vehicle automatically shifted into neutral(N) while at a complete stop to reduce fuel consumption. The contact stated that while at a stop with the feature engaged, the vehicle abruptly jerked, or hesitated while depressing the accelerator pedal. There was no warning light illuminated. The vehicle was taken to a dealer where the transmission was replaced; however, the failure persisted. The dealer was notified of the failure and informed the contact that the failure was a normal characteristic of the feature and that no additional repairs could be made to the vehicle. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was 2,763.

NHTSA ID

11644090

Incident

Jan 24, 2022

Mileage

2,763 mi

High pressure fuel pump failed while driving towing a trailer. Was able to pull over safely, entire fuel system needs to be replaced. Unknown if anything else was damaged yet. Vehicle is still in for repairs, estimate is between 9-13k parts and labor. I hope it didn't destroy the entire engine.

NHTSA ID

11633674

Incident

Nov 24, 2024

Customer Satisfaction Program 25M01 Certain 2021 Model Year F-150 3.0L Diesel Engine and 2020-2022 Model Year Super Duty with 6.7L Diesel Engine Nitrogen Oxide (NOx) Sensor Replacement, If Required After Dealer Evaluation Reference: Emissions Recalls 22E02, 22E04, 23E01, and 25E09

Certain 2017-2025 F-450 – F-600 Chassis Cab Upfitted with an Aerial Bucket Frame Rail Crack

This article supersedes TSB 25-2572 to update the Parts List to correct the part number LC3Z-6006-L to LC3Z-6781-A, remove the flex plate bolts AL3Z-6379-BA from the parts list as these bolts are in kit LC3Z-6781-A, update the claim quantity of the part number W709771-S440 to 9 pieces (F-650/F750-Engine Replacement), W706447-S437 and W715068-S437 to 4 pieces, W712861-S439 to 8 pieces(F-Super Duty Pickup And Chassis Cab-Engine Replacement) / 8 pieces (F-53 Motorhome/F-59 Stripped Chassis Cab/F-650,F750 Engine Replacement) / W714286-S442 to 4 pieces (F-Super Duty Pickup And Chassis Cab-Camshaft and Tappet Repair / F-Super Duty Pickup And Chassis Cab-Engine Replacement), include LC3Z-6020-A for the Engine replacement lists, include 1 fuel injector seal kit to the Camshaft and Tappet repair lists, include 4 pieces of W520114-S440 to the E Series-Camshaft and Tappet Repair list, and update the engine oil part numbers XO-5W30-Q1SP and CXO-5W30-LSP6. Some of the vehicles listed in the Model statement above may exhibit an upper engine ticking or tapping noise at idle. Customers may also report experiencing ro

This bulletin supersedes 25-2549. Reason for update: To add 2020 model year chassis cab vehicles. Some of the vehicles listed in the Model statement above may exhibit an incorrectly illuminated malfunction indicator lamp (MIL) with diagnostic trouble codes (DTC) P0420 and/or P0430 stored in the powertrain control module (PCM). This may be due to the software in the PCM. This condition does not affect vehicle drivability or durability.

Various 2020-2026 Ford and Lincoln vehicles equipped with blind spot information system (BLIS) may experience an inoperative blind spot monitoring with a "Blind Spot System Fault" message displayed in the instrument panel cluster (IPC). This may also be accompanied by diagnostic trouble codes (DTCs) B118C:11 and/or B118C:15 stored in the driver door module (DDM), and/or B118D:11 and/or B118D:15 stored in the passenger door module (PDM). This may be due to the wiring connector from the mirror to the BLIS module. If diagnostics lead to an internal mirror wiring harness fault, a new lower level BLIS light pigtail is now released for service. It is not necessary to replace the exterior mirror assembly. Use part number SC3Z-14A411-B to resolve the concern.

Advance Notice – Customer Satisfaction Program 25N17 Certain 2015-2025 Model Year Multiple Vehicle Lines Rear View Camera Replacement If Required After Dealer Evaluation