Jeep Grand Cherokee 2021 — technical service bulletin
Bulletin S2123000052RevB · NHTSA communication 10230319 · issued Jul 29, 2022
Technical service bulletin
communication type
Visibility
component
2021
model years
1
vehicle entries
Official summary
Wind or Whistle Noise from Exterior Side Mirror at Highway Speeds. Noise can be heard with front windows down between 30 and 60 MPH from both LH and RH exterior rear view mirrors.
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.