08-158-25

"Flash: Air Suspension Control Module (ASCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC):
• U0300-00 - Internal Control Module Software Incompatibility. Customers may also 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."