Jeep Grand Wagoneer 2024 — technical service bulletin
Bulletin 08-124-24 · NHTSA communication 11001229 · issued May 11, 2024
Technical service bulletin
communication type
Suspension
component
2024
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.