2020 FORD F-350 SD Complaints

View complaints related to 2020 FORD F-350 SD. The complaints found here are submitted by actual consumers with first hand experience. There are more than 190 complaints submitted for the 2020 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.

  • 2020 FORD F-350 SD
    - Bay Shore, NY

    The contact owns a 2020 FORD F-350. The contact stated while driving at an undisclosed speed, he had a loss of motive power and check engine warning light was illuminated when driving, almost causing an accident due to not being able to accelerate. The vehicle was taken to a dealer where it was diagnosed to have metal shavings in the combustion system. The contact received notification of NHTSA Campaign Number: 24V957000 (FUEL SYSTEM, DIESEL); however, the SSSC (Special Service Center assistance request) was declined by Ford agency (SSSC), due to the issue not having metal shavings although the dealer technician stated there were shavings. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 126,136.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2020 FORD F-350 SD
    - clearwater, FL

    The component/system that failed or malfunctioned is the SCR (Selective Catalytic Reduction) NOx Catalyst Efficiency system, triggering DTC P20EE – SCR NOx Catalyst Efficiency Below Threshold (Bank 1). This issue began immediately after Ford Recall 24S78 (PCM software update) was performed on April 29, 2026 at Ferman Ford of Countryside. The truck had zero emissions or check-engine issues prior to the recall flash and was perfectly maintained to Ford standards with Howes diesel treatment every tank. The problem has been reproduced and confirmed multiple times by the dealer: After the May 4 PCM reprogram per TSB 21-2248 After replacement of both NOx sensors on May 5 (code returned in under 17 miles) After replacement of the DEF injector (code returned again) The dealer only performed one manual DPF regeneration instead of the two required by Ford SSM 49202 and pinpoint test RD15, and they did not complete the SCR Parameter Reset. They are now quoting an additional ~$2,000 out-of-pocket for a DPF replacement after partial goodwill assistance was approved. The vehicle has been repeatedly inspected and repaired by Ferman Ford. No independent inspection yet. Ford Customer Service has been contacted and partial goodwill was approved, but significant out-of-pocket costs remain. Warning lamps/messages (Service Engine Soon light + “exhaust emission control system is not operating as expected”) first appeared immediately after the April 29 recall PCM flash and have continued ever since. Safety risk: A loss of motive power, entry into limp mode, or reduced power while driving could result in a crash or inability to maintain highway speed. This appears to be a direct consequence of the Recall 24S78 PCM software update tightening emissions monitoring. All repair orders, photos of warnings, and supporting documents are attached for your review. There is 12. I was not able to upload the last of the documents.

    Source: NHTSA WEB SITE
  • 2020 FORD F-350 SD
    - SEABECK, WA

    This is a supplemental complaint to ODI Number 11730675 filed on April 16 2026. I am adding the following critical information: I am filing this complaint in relation to Ford's NHTSA Consent Order regarding recall compliance. My 2020 F-350 VIN [XXX] was built at Kentucky Truck Plant in March 2020 — within the exact production window of Safety Recall 22S22. My transmission has failed with the exact defect mechanism described in 22S22. My VIN was excluded from the recall FSA list despite matching build date, plant, and identical failure mode. I am requesting this complaint be reviewed in the context of Ford's consent order obligations regarding proper recall scope. Ford Customer Care Case Number: XXX-XXX." INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

    Source: NHTSA WEB SITE
  • 2020 FORD F-350 SD
    - Seabeck, WA

    Vehicle experienced sudden, unexpected downshifting and loss of gear engagement while driving. On multiple occasions the transmission slipped out of gear without warning, including while attempting to pull into traffic, creating an immediate life-threatening safety hazard. Vehicle was unable to maintain gear selection and would unexpectedly lose drive power. These failures match the exact defect described in NHTSA recall 22V256000

    Source: NHTSA WEB SITE
  • 2020 FORD F-350 SD
    - Rancho Cucamonga, CA

    The contact owns a 2020 Ford F-350. The contact received notifications of NHTSA Campaign Numbers: 24V957000 (Fuel System, Diesel), 25V626000 (Steering), and 25V686000 (Back Over Prevention); however, the parts for two of the recall repairs were not yet available. The local dealer was made aware of the recalls and confirmed that parts for two of the recalls were not yet available; however, parts for the steering column recall were available. The vehicle was taken to the dealer, where it remained for two months. The contact was then informed that parts to repair the vehicle were unavailable, and the contact was informed to retrieve the vehicle. 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 and provided the same information as the dealer. The contact had not experienced a failure.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2020 FORD F-350 SD
    - Ashville, OH

    The contact owns a 2020 Ford F-350. The contact stated that while parked and turned off, he observed a loud explosion noise while he was inside his residence. The contact stated that he left his residence to investigate, and he observed the front of the vehicle and the cabin of the vehicle engulfed in flames. The fire department was called, and they extinguished the fire. Medical attention was not needed. A police report was filed. The vehicle was not diagnosed, repaired, or moved. The manufacturer was notified of the failure. The failure mileage was 170,000

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2020 FORD F-350 SD
    - Gibbstown, NJ

    The contact owns a 2020 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 local dealer was contacted, and it was confirmed that part was not yet available. 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 the failure.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2020 FORD F-350 SD
    - Winona , MN

    Box Separation from the box side to the box rear. box integrity compromised. Truck has always been used under the capacity ratings. I have 2 ford doing the same thing.

    Source: NHTSA WEB SITE
  • 2020 FORD F-350 SD
    - Grantsville, UT

    I am the owner of a 2020 Ford F-350 equipped with the 6.7L Power Stroke diesel engine. My vehicle is subject to an open safety recall, NHTSA 24V957, involving the high-pressure fuel system. I have been informed by an authorized Ford dealer that there is currently no effective repair remedy available. While I have not experienced loss of power, my vehicle has exhibited abnormal transmission shifting behavior beginning around 40,000 miles. This concern was documented by the dealer and described as normal operation. The condition persisted and was documented again around 60,000 miles, although the dealer stated they could not replicate the issue. Given the unresolved safety recall and ongoing powertrain behavior, I am concerned about vehicle safety, drivability, and long-term reliability, and I am submitting this complaint to document the risk before a safety-related failure occurs.

    Source: NHTSA WEB SITE
  • 2020 FORD F-350 SD
    - Cazenovia, NY

    Vehicle produced symptoms over time: Loss of Ford Pass connectivity, Inconsistent turn signal function, occasional dashboard alarm for Open Driver Door while driving, unwarranted security alarm triggers when still at home. Second to last incident was an unwarranted security alarm that triggered, and was unable to be stopped by use of the security controls (lock/unlock, alarm key button). Horn "wore out" as if fuse burned. Disconnected battery to stop. Two days later, after reconnecting the battery I drove the vehicle, Horn was not functional, and I was unable to stop the engine. Once started, the vehicle did not turn off, even with key completely removed from ignition switch. This was repeatable, every ignition cycle, thereafter. I drove to the dealer, that morning. The dealer mechanic was required to shut off the engine. Dealer mechanic diagnosed failed Battery Junction Box. After Repair, Mechanic diagnosed faulty Body Control Module. Dealer mechanic also recommended replacement of full "Main" wiring harness, interconnecting the two. The cause for all failures was corrosion and electrical shorts due to water ingress. I am aware Ford has issued numerous TSBs and recalls for faulty BCMs, in the same age range as this vehicle. Also, TSBs for water intrusion into the BCM. The mechanic took photos of corrosion on both the BCM and main wiring harness. My prior vehicle was a 2011 Ford F-150, with the same 6.2L engine. No such faults were experienced up to Nov. 2023 sale. Photos of the corrosion on main wiring harness and BCM attached. Dealer has possession of the vehicle. Repairs in progress. Ford has declined support for faulty components; Recalls not associated with this vehicle. Estimated repairs to date on 6 year old vehicle on critical electronics in excess of $7,000.

    Source: NHTSA WEB SITE