Jeep Grand Wagoneer 2023 — technical service bulletin
Bulletin 0824023 · NHTSA communication 10248936 · issued Nov 17, 2023
Technical service bulletin
communication type
Electronic Stability Control
component
2023
model years
2
vehicle entries
Official summary
Flash: Air Suspension Control Module (ASCM) Updates Customers may experience: After towing a heavy load above the protection limit, the air suspension will only lower and will remain in low ride height. Instrument Panel Message (IPC) message "selected ride height not permitted due to payload" appears. 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.