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
    - Hershey, PA

    Steering shaft came apart causing the vehicle to go out of control. Yes inspection is available. Vehicle went into opposing traffic and hit barrier on opposite side of road. Vehicle was inspected by No warning lamp

    Source: NHTSA WEB SITE
  • 2020 FORD F-350 SD
    - Richmond, TX

    Death wobble experienced in 2023 at 64 k miles. Had to purchase stabilizer bar from dealer. Had another death wobble incident in April 2024. Dealer replaced same stabilizer bar again. This design is very dangerous empty but when pulling a bid horse trailer loaded with 3 horses could be catastrophic.

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

    The contact owns a 2020 Ford F-350. The contact stated that the grill, 350 emblem, and driver’s side mirror had melted. There were no warning lights illuminated. The vehicle was taken to the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline. The failure mileage was approximately 200.

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

    The contact owns a 2020 Ford F-350. The contact stated that while driving at various speed, the transmission was slipping while downshifting and upshifting. The contact also stated that there was a hard shift, and the vehicle would lose motive power and lunge forward. The wrench warning light was illuminated. The contact stated that a dealer representative went to the residence to perform a software update however, the failure persisted, and the vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 113,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2020 FORD F-350 SD
    - Yukon, OK

    The contact owns a 2020 Ford F-350. The contact stated while driving at an undisclosed speed, the transmission failed to operate as needed. The contact stated that when the brake pedal was depressed, the transmission shifted excessively hard. The vehicle had previously been taken to the dealer however, the failure could not be duplicated. Additionally, the contact stated that the check engine warning light illuminated prior to the vehicle becoming undriveable. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 60,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2020 FORD F-350 SD
    - Ogden, UT

    The contact owns a 2020 Ford F-350. The contact stated while driving 70 MPH, the check engine warning light illuminated. The vehicle experienced reduced power and went into LIMP Mode. The contact was able to continue driving. The vehicle was taken to the dealer the following day. The dealer diagnosed the vehicle and determined that the Diesel Exhaust Fluid (DEF) tube assembly needed to be replaced. The dealer informed the contact that it was a common failure. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was approximately 55,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2020 FORD F-350 SD
    - Franklin, TN

    The contact owns a 2020 Ford F-350. The contact stated that after the vehicle had been exposed to an extremely cold weather, he attempted to open the front passenger's side door to let his friend in the vehicle. The contact stated that while using the key fob and the door lock switch to attempt to open the door, the front passenger's side door failed to unlock. The contact stated that he was able to open the door by using the interior door handle. The dealer and the manufacturer were notified of the failure and informed the contact that the vehicle was not covered under Ford Campaign Number: 20M04. The dealer advised the contact to take the vehicle to their location to be repaired. The vehicle was not repaired. The failure mileage was approximately 45,500.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2020 FORD F-350 SD
    - Castle Pines, CO

    Emissions control system has "failed" 5 times. Check engine light illuminated. Each time: P0420 DTC code: "Catalyst System Efficiency Below Threshold (Bank 1). Manufacturer is unable to fix. Vehicle will go into "Limp Mode" stranding owners/passengers.

    Source: NHTSA WEB SITE
  • 2020 FORD F-350 SD
    - Castle Pines, CO

    Extreame front-end vibration ("aka" death-wobble as described for other F250 and F350 pickups on Google). Driving 60mph on 65mph limit highway. Small bump on road. Truck starts severe vibrations from the front end. No steering control. Slight drift into left lane. Another car in the lane left to me had to break to avoid me. Vibration would not stop until I applied brakes and the truck speed was 30mph. Both the loss of steering, and the necessary reduction in speed was extreamly dangerous. Upon searching the internet it appears this is a common problem with Ford F250 and F350 trucks that neither the NHTSA nor Ford has/is addressing.

    Source: NHTSA WEB SITE
  • 2020 FORD F-350 SD
    - Merrill, MI

    The contact stated owns a 2020 Ford F-350. The contact stated that the vehicle had been repaired under Manufacturer Campaign Number: 22E04 Reprogram PCM/TCM (Power Train) however, after the repair the fuel economy had become significantly lessened. Prior to the repair the fuel economy was 22 MPG however, after the recall repair the fuel economy was 13.5 MPG. The contact stated that while hauling a trailer, the fuel economy fell from 13.4 MPG to 6.5 MPG. While driving with the cruise control activated, the fuel economy fell from 25 MPG to 15 MPG. The vehicle was taken to the dealer where it was confirmed that the recall remedy could not be reversed. The vehicle was not diagnosed. The vehicle or repaired. The manufacturer was made aware of the failure. The contact was referred to the NHTSA Hotline to file a complaint. The approximate failure mileage was 59,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE