{"nhtsa_id":11018238,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-05-13","date":"2025-05-12","document_id":"SSM 53759","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"After replacement of any TRON module, the gateway module (GWM) and the TRON capable modules can set diagnostic trouble codes (DTCs) U211A, U211B, U211C, U3034, U3035, U3036, U35D9, U35DA and/or U35DB if the secret authentication security keys are not aligned between the modules, a loss of communication is occurring between modules and/or a module is not responding. This may be a result of missing the new module secret authentication security key obtained when running the Ford Diagnosis and Repair System (FDRS) \"Trusted Real-Time Operation Network (TRON) Module Authentication\" procedure after replacement. When replacing a TRON capable module, run the FDRS \"Trusted Real-Time Operation Network (TRON) Module Authentication\" procedure in the GWM tool box, not in the toolbox of the module with the DTC's, to distribute a new set of secret authentication security keys to all TRON-capable modules. Using the specific vehicle identification number (VIN), refer to Workshop Manual (WSM), Section 418-00 and 418-01 for updated DTCs, applicable TRON module listings and pinpoint tests.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11018238-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11018238-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11018238","components":[],"codes":["U211A","U211B","U211C","U3034","U3035","U3036","U35D9","U35DA","U35DB"],"topics":[],"vehicles":[{"make":"FORD","model":"BRONCO SPORT","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_ford_bronco-sport"]},{"make":"FORD","model":"ESCAPE","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_ford_escape","2025_ford_escape"]},{"make":"FORD","model":"EXPEDITION","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_ford_expedition"]},{"make":"FORD","model":"EXPLORER","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_ford_explorer","2025_ford_explorer"]},{"make":"FORD","model":"F-150","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_ford_f-150","2025_ford_f-150"]},{"make":"FORD","model":"F-250 SD","year_from":2023,"year_to":2025,"match":"base","vehicle_ids":["2023_ford_f-250","2024_ford_f-250","2025_ford_f-250"]},{"make":"FORD","model":"F-350 SD","year_from":2023,"year_to":2025,"match":"base","vehicle_ids":["2023_ford_f-350","2024_ford_f-350","2025_ford_f-350"]},{"make":"FORD","model":"F-450 SD","year_from":2023,"year_to":2025,"match":"base","vehicle_ids":["2023_ford_f-450","2024_ford_f-450","2025_ford_f-450"]},{"make":"FORD","model":"F-550 SD","year_from":2023,"year_to":2025,"match":"base","vehicle_ids":["2023_ford_f-550","2024_ford_f-550","2025_ford_f-550"]},{"make":"FORD","model":"MAVERICK","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_ford_maverick"]},{"make":"FORD","model":"MUSTANG","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_ford_mustang","2025_ford_mustang"]},{"make":"FORD","model":"MUSTANG MACH E","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_ford_mustang-mach-e"]},{"make":"LINCOLN","model":"AVIATOR","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_lincoln_aviator","2025_lincoln_aviator"]},{"make":"LINCOLN","model":"NAUTILUS","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_lincoln_nautilus","2025_lincoln_nautilus"]},{"make":"LINCOLN","model":"NAVIGATOR","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_lincoln_navigator"]}],"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":[]}