Ford Bronco Sport 2021 — technical service bulletin
Bulletin SSM 50324 · NHTSA communication 10205447 · issued Dec 7, 2021
Technical service bulletin
communication type
Structure
component
2021
model years
1
vehicle entries
Official summary
Some 2021 Bronco vehicles built on or before 23-Jun-2021 may exhibit a whistle noise from the driver side mirror while driving. This may be due to an excessive gap between the side mirror and mirror cap assemblies. An improved version of the mirror cap has been released for service. To correct this condition, replace the mirror cap with service base part number 17D743. Refer to the parts catalog for the VIN specific application.
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.