2021 FORD F-350 SD Complaints
View complaints related to 2021 FORD F-350 SD. The complaints found here are submitted by actual consumers with first hand experience. There are more than 100 complaints submitted for the 2021 FORD F-350 SD. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.
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2021 FORD F-350 SD- Tucson, AZ
Upon starting the vehicle I get precollision not available warning light and hill decent control fault hill assist warning. Service steering and antilock brake brake fault lights. The dealer has looked at it but they said can not duplicate it. The problem is when I am towing my fifth wheel trailer and this happens it shuts down the brake controller for the fifth wheel and it’s VERY hard to stop the truck and trailer
Source: NHTSA WEB SITE -
2021 FORD F-350 SD- Bradenton, FL
My Ford F350 is experiencing the recall deficiency issued by Ford in January 2025 after repeated calls Ford still is unable or unwilling to fix my vehicle. Ford motor company, and the local dealership have told me workarounds could be performed, but they would be done at my expense. A rearview camera on a pick up truck is used often and is a safety hazard when backing up Blind to low objects.
Source: NHTSA WEB SITE -
2021 FORD F-350 SD- Harlingen, TX
The contact owned a 2021 Ford F-350. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power and was unable to accelerate as needed. The contact was able to reach to drive to the residence, where the failure persisted. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure high-pressure fuel pump (HPFP). The vehicle was repaired. After investigating the failure, the contact attributed it to NHTSA Campaign Number: 24V957000 (Fuel System, Diesel). The VIN was included, but parts were not yet available. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The contact had since sold the vehicle. The failure mileage was 280,000.
Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE -
2021 FORD F-350 SD- Kamas, UT
I have a fuel leak on this vehicle that seams to coming from fuel filter housing or fuel pump.
Source: NHTSA WEB SITE -
2021 FORD F-350 SD- Ocala, FL
The contact owns a 2021 Ford F-350 Commercial Vehicle. 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 contact stated that the vehicle had failed to start. The vehicle was towed to an independent mechanic, where it was diagnosed that the fuel pump had failed and needed to be replaced. The vehicle was not repaired. The dealer was contacted for the recall repair and informed the contact that the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,000. VIN tool confirms parts not available.
Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE -
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2021 FORD F-350 SD- Hempstead, TX
At this point, nothing has happened. This is a fuel pump, bio-diesel issue that can cause a lack of power which is a safety risk. This recall has been active for 7 months with no remedy listed, but according to Ford Motor Company will require a software update? The remedy is replacing the fuel pump with a DCR valve. Waiting for the truck to breakdown and potentially leading to loss of life should not be acceptable. They know about the issue, they say no remedy, yet they are continuing to manufacture these vehicles. Are they manufacturing new vehicles with a known safety risk or did they fix the problem on newer model vehicles and just stonewalling current owners?
Source: NHTSA WEB SITE -
2021 FORD F-350 SD- Riverton, UT
There is an active recall on my truck and it is affecting my ability to use my truck for work purposes. I am not allowed to used a vehicle with an open, active recall, therefore I cannot use my truck. This recall has been active for more than six months and a remedy has not yet been identified. I am posting a complaint to try and speed up the recall process, which if I understand correctly is a software update for the engine to reduce biodiesel buildup in the engine which "could" cause loss of power.
Source: NHTSA WEB SITE -
2021 FORD F-350 SD- Mead, CO
A large fuel leak occurred. The amount of diesel coming out of the top of the fuel filter area was so substantial that I could not drive the vehicle.
Source: NHTSA WEB SITE -
2021 FORD F-350 SD- Pleasant Hill, MO
The contact owns a 2021 Ford F-350. 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 contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.
Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE -
2021 FORD F-350 SD- Lancaster, CA
Ongoing Fuel System Failures Related to Recall 24S78 – Request for Escalated Review To Whom It May Concern, My name is [XXX] , and I am the owner of two 2021 Ford F-350 6.7L Power Stroke Diesel trucks, both of which are affected by Recall 24S78 / NHTSA Campaign 24V957 concerning biodiesel deposit accumulation in the fuel system and a pending PCM software update. Vehicle Information: VIN [XXX] VIN [XXX] Both vehicles have already experienced critical failures that directly align with the described defect in the recall, including: Failure of the CP4 high-pressure fuel pump Repeated clogging of the water/fuel separator filter Loss of power, extended crank times, and intermittent no-start conditions These issues occurred prior to the recall remedy being available and have compromised vehicle performance and safety. I am requesting: A full inspection and evaluation of the fuel systems under the scope of Recall 24S78 once the software becomes available. Coverage or reimbursement for repair or replacement of the CP4 pump and related components if found to be caused by biodiesel-related damage as described in the recall. A formal service record entry acknowledging these failures for future reference and eligibility under the recall. Escalation of this issue to a Ford regional service manager, if needed. Given the significant safety risk and the known failure history of the CP4 fuel system, I ask that Ford address this matter thoroughly and beyond a software update, if necessary. Please confirm receipt of this inquiry and advise me on next steps. I can be reached at: Phone: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Source: NHTSA WEB SITE