There are 2 owner-reported body & structure complaints for the 2018 Ford F-550in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
The contact owns a 2018 Ford F-550. The contact stated while driving approximately 10 MPH, the subframe suddenly fractured in half. The contact stated that the fracture occurred near the rear cabin of the vehicle. The vehicle was later towed from the scene. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure, but no assistance was provided. The failure mileage was 268,967.
The contact owns a 2018 Ford F-550. The contact stated while the vehicle was parked, the contact stated that the frame was cracked between the bed and the cab. There were no warning lights illuminated. The vehicle was taken to a dealer where it was confirmed that the vehicle was previously repaired under a related unknown recall and declined to perform the recall repair on a second occasion. The dealer determined that the frame needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was not made aware of the failure. The failure mileage was approximately 73,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on May 4, 2026