The contact owns a 2021 Ford F-450 SD. The contact stated while driving approximately 70 MPH, the electronic brake control became inoperable. There were no warning lights illuminated. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The contact called another local dealer, Ray's Ford Chrysler Dodge Jeep Ram 385 Bypass Rd., Brandenburg, KY 40108, and was informed…
2021 Ford F-450 electrical problems
moderate 5 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
5
Recalls
0
Avg fix
$850
When does it fail?
Of the 5 electrical complaints filed for the 2021 Ford F-450, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 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 owners are reporting 5 most recent
My 2021 Ford F 450 will not actuate the electric over hydraulic brakes on my gooseneck trailer. I was hauling my tractor to one of my hay fields when a car pulled out in front me. I apply my foot to the brake pedal and the truck and trailer did not slow down liked it use to and I almost rear ended the vehicle that pulled out in front of me. After this I try to apply just the trailer brakes using…
The contact owns a 2021 Ford F-450 SD. The contact stated while the vehicle was parked on the side of the road, the driver attempted to start the vehicle, but the vehicle failed to restart. The vehicle was towed to the dealer, where it was diagnosed that the battery junction box harness had failed. The dealer replaced the battery junction box harness assembly, engine module, fuse junction box,…
Power tailgate system fault warning has been coming on nd od. And tail gate opened un commanded and damaged tailgate and horse trailer. It was pouring rain and going les than 10 miles an hour and turning. This started on day 2 of ownership. Truck only has aprox 1000 miles on it. Vehicle is currently at dch Ford in thousand oaks california.
The tailgate system fault light started coming on on day 2 of ownership. Has been on and off a few times since. The talgate yesterday opened un commanded and damaged the tailgate and horse trailer it was connected to. Note I filled one of these I=out a munte ago but had the wrong VIN! Sorry!
Had electrical trouble with your 2021 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 electrical problem on the 2021 Ford F-450?
It's a documented issue but not catastrophic. 5 complaints have been filed. Repairs average $850 and most owners catch it before it causes a breakdown.
At what mileage does the electrical typically fail?
Based on the 5 complaints filed, electrical issues most often appear around 55,371 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 $850 for electrical 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 electrical?
No active recalls currently cover electrical 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/2021/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.