Ford Bronco 2021–2024 — technical service bulletin
Bulletin SSM 52839 · NHTSA communication 11007872 · issued Sep 2, 2024
Technical service bulletin
communication type
Electrical System
component
2021–2024
model years
5
vehicle entries
Official summary
2021 2024 Bronco, 2024 Ranger - Door Window Switch Inoperative With DTC B1087:87 And/Or U2013:23
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.