0805423

Flash: Radio Frequency Hub Module (RFHM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTC)s have been set: ? B1053-64 RFHM (KIN Communication) - Signal Plausibility Failure ? B1A7D-2F- Start Button-Signal Erratic Customers may also experience: ? Vehicle can not be switched off using the keyless button. This bulletin involves updating the RFHM module with the latest available software.