You need to record the 10-digit STID number, and the 11-digit ESN number from the labels on the new module, and install the VCIM to the bracket ensuring the retaining tab is fully seated. Then you need to connect the VCIM electrical connectors as necessary, and you need to install the service panel and reconfigure the OnStar(R) system. Finally, you need to be sure to transfer Bluetooth Antenna, if equipped.
By BobGM Specialist
29/10/2022