08-138-25

"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 Codes (DTC):
• U0300 - Internal Control Module Software Incompatibility.** Customers may experience one or more of the following:
• Ride height disabled.
• Suspension will lower, but will not raise.
• 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. "