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RecallGazette

Vehicle problems, recalls & safety intelligence

Ford Bronco Sport 2023–2025 — technical service bulletin

Bulletin SSM 53638 · NHTSA communication 11017064 · issued Apr 14, 2025

Technical service bulletin
communication type
Unknown OR Other
component
2023–2025
model years
28
vehicle entries

Official 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 occuring 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 re

Vehicles covered

What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.