{"nhtsa_id":11034019,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-06-22","date":"2026-06-16","document_id":"SSM 54940","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER; SERVICE BRAKES","mfr_system":"Trailer Brake Kit","summary":"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).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034019-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11034019-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11034019","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":["U2100"],"topics":[],"vehicles":[{"make":"FORD","model":"F-150","year_from":2021,"year_to":2026,"match":"exact","vehicle_ids":["2021_ford_f-150","2022_ford_f-150","2023_ford_f-150","2024_ford_f-150","2025_ford_f-150","2026_ford_f-150"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}