Jeep Grand Cherokee 2021–2023 — technical service bulletin
Bulletin S2302000004 · NHTSA communication 10243133 · issued Aug 2, 2023
Technical service bulletin
communication type
Suspension
component
2021–2023
model years
7
vehicle entries
Official summary
Air Suspension Control Module (ASCM) Wheel Acceleration Sensor Diagnostic Trouble Codes (DTCs) C15D1-01 And Or C15D2-01.
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.