Ford Motor Company is recalling nearly 4.4 million vehicles due to a software problem that could affect the functionality of an attached trailer’s tail lights, turn signals, and brakes. The issue can lead to a loss of communication between the towing vehicle and the trailer, increasing the risk of a crash.
Software Glitch and Its Effects
The problem arises when the vehicle is first started, causing a breakdown in communication between the towing vehicle and the trailer. This malfunction results in the trailer’s tail lights and turn signals failing to function, and in some cases, the trailer’s brakes may also stop working.
Ford has explained that when this issue occurs, the driver will be alerted with a “Trailer Brake Module Fault” message. Additionally, the turn signal will begin to flash rapidly, and a “Blind Spot Assist System fault” message may also appear.
Potential Safety Hazards
According to the National Highway Traffic Safety Administration (NHTSA), this software glitch could increase the likelihood of a crash. The NHTSA warned that inoperable trailer lighting and braking could reduce a driver’s control over the trailer and make it less visible to other drivers, heightening the risk of accidents.
Affected Vehicles and Recall Details
The recall includes Ford trucks, vans, and SUVs from model years 2021 to 2026. More than 3.4 million of the recalled vehicles are Ford F-150 and F-250 pickups. Ford is expected to issue a remote, automatic software update for the affected vehicles in May 2026.
Ford has assured vehicle owners that they will be notified once the update is complete. Alternatively, owners can visit a Ford or Lincoln dealer to have their vehicles repaired at no charge.
No Reports of Accidents or Injuries
Ford confirmed that, as of now, it is unaware of any accidents, injuries, or fires linked to the software issue. The automaker first started investigating the problem in October 2025.
