Ford Bronco 2021 — technical service bulletin
Bulletin 4WP.09.17.21 DN · NHTSA communication 10203792 · issued Nov 4, 2021
Technical service bulletin
communication type
Structure
component
2021
model years
2
vehicle entries
Official summary
Dealer notification executed in conjunction with manufacturer communication 4WP.09.17.21
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.