OnStar® Vehicle Communication Interface Module (VCIM)
Module Information - Software Version: This displays the 3-digit number of the software version used on the OnStar® VCIM.
Module Information Hardware Version: This displays the 1-digit number of the hardware version used on the OnStar® VCIM.
Module Information - Julian Date Of Build: This displays the day of the year the module was built.
Module Information - Year Module Built: This displays the year the module was built.
Module Information - 8-Digit GM Part Number: This displays the part number for the VCIM.
Module Information - Component Serial #8: This is the first partition of the serial number.
Module Information - Component Serial #12: This is the second partition of the serial number.
Module Information - Component Serial #13: This is the third partition of the serial number.