Ford Bronco Sport 2020–2023 — technical service bulletin
Bulletin SSM 51874 · NHTSA communication 10241597 · issued Aug 21, 2023
Technical service bulletin
communication type
Equipment
component
2020–2023
model years
7
vehicle entries
Official summary
Some 2021-2023 Bronco Sport and 2020-2023 Escape vehicles may exhibit a rattle or flapping noise coming from the rear air extractors while driving. This may be due to the normal operation of the rear air extractors. To determine if this is a normal condition, perform a road test at 40 mph (65 km/h) or above. Inspect if the noise is coming from the rear extractors. During the road test alternate air conditioning (A/C) between fresh mode and air re-circulation mode. If the noise is eliminated when the A/C is in fresh mode, this is considered a normal characteristic of the vehicle and no repairs
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.