# U2100 on the 2026 Ford F\-150

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name U2100

- [11034019](https://open.wenmarpro.com/bulletins/11034019), 2026-06-22: Some 2021\-2026 F\-150 vehicles may exhibit a U2100:00 diagnostic trouble code \(DTC\) for initial configuration incomplete stored in the trailer control module \(TRM\). This may be due to the vehicle having a Ford accessory trailer brake kit installed without being programmed following the included instructions. If the vehicle was built with minor feature code FDDAA and a trailer brake gain switch is present in the stock location in the instrument panel, a Ford Accessory trailer brake kit has been installed on the vehicle. If a Ford Accessory trailer brake kit is present, download and run the "TRM \- Towbar Configuration" application using the latest software level of the Ford Diagnosis and Repair System \(FDRS\) scan tool. To confirm a vehicle is built with a certain minor feature code, review the build information by double\-clicking the vehicle identification number \(VIN\) in the upper left corner in the Professional Technician System \(PTS\).