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.

  • 2021 FORD F-350 SD
    - Chino Hills, CA

    On highway for 2 hours, pulling 5th wheel trailer. Diesel Particulate Filter Cleaning alert went on. Immediately truck lost power, a few other alerts flashed on the screen that couldn't read in time then alert that truck was being put in Neutral which it did. Smoke coming out of engine compartment. Barely coasted to stop on side of freeway. Quickly turned from white smoke to brown. Barely enough time to get me, wife and dog out of the cab before flames coming out of engine. Engine and cab completely burned out.

    Source: NHTSA WEB SITE
  • 2021 FORD F-350 SD
    - Syracuse, NY

    Transmission lunges forward at times even when putting into park position and starting vehicle. Also, when driving down the road vehicle jerks or bucks and throws you forward. Periodically, there is a complete loss of transmission function then you hear large bang and truck jerks forward. This has been reported to Fenton Ford Camden, NY several times and they cannot seem to find issue and stated if it doesnt duplicate happening when they have vehicle there is nothing they can do about it. This has become a serious safety concern when truck jerks forward when starting and park position and lunges forward in traffic. Thank you for your anticipated, cooperation and help resolving this serious safety matter. Thank You, [XXX] - Vehicle Owner INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

    Source: NHTSA WEB SITE
  • 2021 FORD F-350 SD
    - Erwin , TN

    On my 21 f350 while towing a 36 foot gooseneck unloaded I noticed a burning wire smell. And I realized I had no more trailer brakes. After diagnosis of the system I found the factory trailer brake controller had melted on the inside. Causing it to loose braking.

    Source: NHTSA WEB SITE
  • 2021 FORD F-350 SD
    - Erwin , TN

    On my 21 f350 I had a Gooseneck trailer attached and while it was in the process of getting loaded with no more than 5 thousand pounds. A very loud pop was heard. After a closer inspection I found that both rear leaf spring hanger brackets had split. Causing a safety issue.

    Source: NHTSA WEB SITE
  • 2021 FORD F-350 SD
    - Erwin, TN

    While driving my 21 F350 my truck would go into limp mode. The climate control stopped working, passenger window stopped, blind spot monitors, along with the mirror. After running forscan it showed every code possible. After an exhaustive search I finally found the main plug under the bed just above the spare tire. The wires inside of the insulation had corroded away to the point it had to be stripped back at least 1/2 inch before getting decent wires that wouldn't crumble when touched. This is a terrible place to put a plug that controls so much.

    Source: NHTSA WEB SITE
  • 2021 FORD F-350 SD
    - Calgary, MT

    This vehicle has horrible throttle response. When I take off normally then let off the gas then try and accelerate, there is a 2-3 second lag in acceleration. It’s dangerous because I’ve had times where I can’t get out of the way of oncoming traffic. Not all of these trucks have this and I want ford to rectify this for safety’s sake

    Source: NHTSA WEB SITE
  • 2021 FORD F-350 SD
    - Bristol, NH

    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

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2021 FORD F-350 SD
    - Klein, TX

    Driving down the highway at a speed of 70,truck began to vibrate uncontrollably changed lanes. Continue to vibrate uncontrollably in the front of the truck. Pulled safely to side of road. Expected to see flat tires. No flat tires. Turn truck off. Turn truck back on no issues again. I believe this was my first experience with the death wobble.

    Source: NHTSA WEB SITE
  • 2021 FORD F-350 SD
    - Novato, CA

    The contact owns a 2021 Ford F-350. The contact stated that while entering the vehicle, he observed a puddle of water in the front middle seat which was folded down to use as a cup holder. The contact stated that it had rained the night before but not enough to form a puddle outside around the vehicle or inside the vehicle. The contact stated that the windows were locked securely. The contact became aware that water was dripping from the sunglasses compartment located on the ceiling above the rear-view mirror. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The contact called the manufacturer and was advised to take the vehicle to a dealer to be diagnosed. The contact was also directed to call the NHTSA Safety Hotline for assistance. The failure mileage was 43,808.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2021 FORD F-350 SD
    - Pearland, TX

    The contact owns a 2021 Ford F-350. The contact stated that the vehicle failed to shut off upon depression of the START/STOP button after several attempts. While driving to the dealer, several warning lights appeared on the instrument panel. The dealer performed a diagnostic test and discovered that the battery junction box was defective due to moisture intrusion. The manufacturer was notified of the failure and informed the contact that there was no recall on the vehicle. The contact was provided a case number. The vehicle was not repaired. The failure mileage was approximately 47,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE