Jeep Grand Cherokee 2020–2023 — technical service bulletin
Bulletin 9100019 · NHTSA communication 10230502 · issued Aug 3, 2022
Technical service bulletin
communication type
Trailer Hitches
component
2020–2023
model years
4
vehicle entries
Official summary
Mopar trailer brake controller.
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.