Ford Bronco 2021–2024 — technical service bulletin
Bulletin SSM 52258 · NHTSA communication 10250522 · issued Feb 13, 2024
Technical service bulletin
communication type
Electrical System
component
2021–2024
model years
4
vehicle entries
Official summary
Some 2021-2024 Bronco vehicles may exhibit a parasitic battery draw. This may be due to an interior door lock switch on the driver's and passenger's interior door panels. Prior to normal Workshop Manual (WSM) diagnostics, check both front door lock control switches for damage and/or proper operation. If a front door lock control switch does not operate as designed, repair as necessary. If no problems are found, continue with normal WSM diagnostics. For claiming, use causal part 14028 and applicable labor operations in Section 10 of the Service Labor Time Standards (SLTS) Manual. If the draw is
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.