NHTSA Owner Complaint Log
This page lists owner-reported complaints filed with NHTSA for the 2021 Ford F-350. Complaints are unverified consumer reports submitted to NHTSA and do not by themselves prove a defect or defect rate.
The contact owns a 2021 Ford F-350 SD. The contact received notification of NHTSA Campaign Number: 24V957000 (Fuel System, Diesel). The contact stated that while driving 20 MPH, the message "Reduced Power" was displayed, and the check engine warning light was illuminated. The vehicle stalled and failed to restart. The vehicle was towed to a dealer and was diagnosed with failures of the CP4 fuel pump, cycloid filters, and contamination of the entire fuel system. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 30,000.
Vehicle went into limp mode and we towed it to the dealership. They ran diagnostics and found that the fuel filter was causing a fault for water in the fuel filter. They replaced the fuel filter and ran diagnostics again and it flagged failure for Low pressure fuel pump. They replaced the low pressure fuel pump and reran diagnostics. When they reran diagnostics it flagged for High pressure fuel pump failure and now they are in the process of tearing it down to the point of failure to find out the cause. My vehicles vin was not included in the original recall and believe that it should have been included.
The contact owns a 2021 Ford F-350. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed, but the vehicle failed to accelerate as intended. The vehicle was driven to the shoulder of the road, where it lost motive power. The message "Reduced Engine Power" was displayed, and the check engine warning light was illuminated. The contact stated that the failure occurred while a fifth wheel RV was hitched to the vehicle. The vehicle was towed to the dealer, where it was diagnosed that the high-pressure fuel pump had failed and needed to be replaced. The vehicle was not repaired. The contact was informed that the manufacturer denied covering the repair under NHTSA Campaign Number: 24V957000 (Fuel System, Diesel) due to a contaminated fuel system; however, the dealer confirmed that the fuel system was not contaminated. The dealer submitted information to the manufacturer advising that the fuel system was not contaminated. Additionally, a case was filed; however, the contact was denied coverage. The failure mileage was approximately 195,000.
The contact owns a 2021 Ford F-350. The contact stated that while driving at 55 MPH, the tailgate opened inadvertently, and landed on the jack for the trailer that was being hauled. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 42,000.
The contact owned a 2021 Ford F-350 Diesel. The contact stated that while the vehicle was parked in the contact's residential yard, the contact noticed the vehicle was on fire. The contact had just parked the vehicle and walked around to the back of the residence. The contact stated that the fire came from under the center area of the hood. The contact attempted to extinguish the fire, however the fire department arrived and extinguished the fire. A fire report was filed. No police report was filed. No injuries were sustained. The vehicle was still located at the contact's residence. The manufacturer was made aware of the failure but did not assist. The failure mileage was approximately 85,000. The VIN was not available
1st when the truck is running it has 14.7v from cigarette lighter, and I had an app that reported over voltage since day one and have to replace the battery every 6-8 months. 2nd less than 60,000 miles had issues with drive train (could be something else as I’m not mechanical) and it went after the 60,000 miles because they said it was a computer issue. They said the issues were unrelated even though they did the same things. I had to wait over 2 months on parts as it was the same issue that GM had as they had the same parts.
The contact owns a 2021 Ford F-350 SD. The contact received a notification for NHTSA Campaign Number: 21V090000 (Visibility); however, the part to do the recall repair was unavailable. The dealer had been notified about the recall and confirmed that parts were not yet available. The manufacturer had been notified of the recall and referred the contact to NHTSA. The contact stated that the manufacturer had exceeded a reasonable amount of time for the repair. The contact had not experienced a failure. The VIN was not available.
ABOUT 7-8 TIMES NOW, THE TAILGATE HAS OPENED UNDER IT'S OWN POWER UNEXPECTEDLY. IT HAS HAPPENED WHILE STATIONARY AFTER JUST STARTING THE VEHICLE, WHILE IN REVERSE AND IN FORWARD MOTION. ALL INSTANCES SEEM TO HAPPEN SHORTLY AFTER THE VEHICLE HAS BEEN STARTED.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Sep 3, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.