Important: The vehicle communication interface module (VCIM) has a specific set of unique numbers that tie the module to the vehicle it resides in. These numbers, the 10-digit station identification and 11-digit electronic serial number, are used by the National Cellular Network and OnStar to identify the specific vehicle. Because these numbers are tied to the vehicle identification number of the vehicle, these parts should NOT be exchanged with those of another vehicle. After replacing the VCIM, it is essential to reconfigure the OnStar system. Failure to reconfigure the system will result in an additional customer visit for repair. In addition, pressing and holding the white dot button on the keypad will not reset this version of the OnStar system. This action will cause a DTC to set.

1. Install the scan tool. Use the special functions menu in order to perform the OnStar® setup procedure for this vehicle.
2. Move the vehicle to an open area that is away from tall buildings with a clear view of unobstructed sky. Allow the vehicle to run for 10 minutes.
3. Use the ID information menu on the scan tool to access the new station ID (STID) and the electronic serial number (ESN) from the new VCIM.
4. Press the blue OnStar® button to connect to the OnStar® Call Center. Tell the advisor that this vehicle has received a new VCIM and ask the advisor to perform the following procedure:

•	Add the new STID and the ESN to update the customer's account.

•	Follow any additional instructions from the OnStar® advisor.

•	Ask the advisor to activate the OnStar® Personal Calling feature, if available.

5. The default language for voice recognition in the generation 6 OnStar module is English. To change the language resident in the module, refer to Service Programming System (SPS) .