Certain 2020 Model Year Super Duty F250-F600 Vehicles Equipped with a 10R140 Transmission - Number One Planetary and Ring Gear Assembly- Ref Cust Sat Program 21B03 dated March 3, 2021 In all of the affected vehicles, a distressed No. 1 planetary needle bearing inside the ring gear assembly will generate contamination that may produce rough shifts. A wrench light is likely to come on, and the transmission may go into safe mode and only operate in seventh gear. As damage progresses, the transmission may only be capable of limited vehicle speed or may not engage in forward or reverse
full bulletin at NHTSA ↗2020 Ford F-450 powertrain problems
moderate 5 complaints filed with NHTSA · avg repair $2,500 · see powertrain across all vehicles →
Complaints
5
Recalls
0
Avg fix
$2,500
When does it fail?
Of the 5 powertrain complaints filed for the 2020 Ford F-450, here's the actual mileage breakdown — failures cluster heaviest at 75,000-100,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Powertrain accounts for 21% of all owner complaints filed against this vehicle, across 3 categories tracked.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering powertrain on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 4 most recent
The contact owns a 2020 Ford F-450. The contact stated that while driving at 65 MPH, the transmission experienced rough shifting. The vehicle then inadvertently decelerated and failed to exceed 50 MPH. The contact pulled over to the side of the road and restarted the vehicle. The contact then drove to the residence. The vehicle was later towed to the dealer, where it was diagnosed that there were…
The vehicle is experiencing very erratic shifts between gears. The transmission is slingshot shifting in all gears between 3rd through 6th. If this continues it will undoubtedly blow the transmission out. I work with this truck every day and if it blows it will very likely cause a very big safety hazard as I would very possibly have a load on my trailer and this could force me out of my lane.…
Sudden acceleration while braking. While towing a gooseneck trailer aprox. 25,000 lbs, with the truck in tow/haul mode and the exhaust/engine brake turned on, started down a long winding 8% grade, could feel the engine brake working as normal, holding the truck from gaining speed, as the truck entered the second turn, the truck lunged forward gaining a lot of speed causing me to quickly…
See attached document for complaint
Had powertrain trouble with your 2020 Ford F-450?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the powertrain problem on the 2020 Ford F-450?
It's a documented issue but not catastrophic. 5 complaints have been filed. Repairs average $2,500 and most owners catch it before it causes a breakdown.
At what mileage does the powertrain typically fail?
Based on the 5 complaints filed, powertrain issues most often appear around 78,500 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $2,500 for powertrain repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to powertrain?
No active recalls currently cover powertrain issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2020/Ford/F-450.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.