Jeep Grand Cherokee 2021–2023 — technical service bulletin
Bulletin S2323000007 · NHTSA communication 10231718 · issued Jan 11, 2023
Technical service bulletin
communication type
Structure
component
2021–2023
model years
3
vehicle entries
Official summary
Thump Clunk Or Rattle Noise Heard From Under Vehicle While Driving.
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.