Jeep Grand Cherokee 2023 — technical service bulletin
Bulletin 0815923 · NHTSA communication 10241142 · issued Jun 30, 2023
Technical service bulletin
communication type
Suspension
component
2023
model years
1
vehicle entries
Official summary
Flash: Air Suspension Control Module (ASCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code (DTC). ? U0300-00 - Internal Control Module Software Incompatibility-. Customers may experience one or more of the following: ? Manual leveling requests are inoperative. ? Vehicle will raise to off-road 2. This bulletin involves reprogramming the ASCM with the latest available software.
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.