Ford Bronco 2021 — technical service bulletin
Bulletin SSM 50029 · NHTSA communication 10200997 · issued Aug 10, 2021
Technical service bulletin
communication type
Visibility
component
2021
model years
1
vehicle entries
Official summary
Some 2021 Broncos equipped with the Base, Big Bend, Black Diamond and/or Badlands trim levels may exhibit a whistle noise coming from the drivers side mirror area of the vehicle. This may be due to an excessive gap between the exterior mirror cover and the glass housing. This condition does not affect vehicle durability and no additional diagnosis or service is required for this condition at this time. Inform customers that they can continue to drive the vehicle and engineering is currently working on a solution for this condition that is expected in October 2021. Replacement of the mirror and
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.