Communication Interface Module Replacement

WARNING: This page is about a different car, the 2011 GMC Acadia, 2011 Chevrolet Traverse, and 2011 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Communication Interface Module

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
Preliminary Procedure Remove the left rear quarter lower trim panel. Refer to Quarter Lower Rear Trim Panel Replacement (Acadia with TB5) , Quarter Lower Rear Trim Panel Replacement (Traverse with TB5) , Quarter Lower Rear Trim Panel Replacement (Traverse with TB4) , Quarter Lower Rear Trim Panel Replacement (Enclave with TB5) , Quarter Lower Rear Trim Panel Replacement (Acadia with TB4) , Quarter Lower Rear Trim Panel Replacement (Enclave with TB4) .
1	Communication Interface Module Procedure Disconnect the electrical connectors. When replacing the communication interface module be sure to transfer Bluetooth Antenna, if equipped. Reprogram the communication interface module if replaced. Refer to Control Module References . When replacing the VCIM, record the 11-digit electronic serial number (ESN) and the 10-digit station identification (STID) number from the label on the new VCIM. The vehicle communication interface module (VCIM) has a specific set of unique numbers that tie the module to each vehicle. These numbers, the 10-digit station identification and the 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, you must never exchange these parts with those of another vehicle. After replacing the vehicle communication interface module, you must 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.

Callout

Component Name

Preliminary Procedure
Remove the left rear quarter lower trim panel. Refer to Quarter Lower Rear Trim Panel Replacement (Acadia with TB5) , Quarter Lower Rear Trim Panel Replacement (Traverse with TB5) , Quarter Lower Rear Trim Panel Replacement (Traverse with TB4) , Quarter Lower Rear Trim Panel Replacement (Enclave with TB5) , Quarter Lower Rear Trim Panel Replacement (Acadia with TB4) , Quarter Lower Rear Trim Panel Replacement (Enclave with TB4) .

Communication Interface Module

Procedure

Disconnect the electrical connectors.
When replacing the communication interface module be sure to transfer Bluetooth Antenna, if equipped.
Reprogram the communication interface module if replaced. Refer to Control Module References .
When replacing the VCIM, record the 11-digit electronic serial number (ESN) and the 10-digit station identification (STID) number from the label on the new VCIM.

The vehicle communication interface module (VCIM) has a specific set of unique numbers that tie the module to each vehicle. These numbers, the 10-digit station identification and the 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, you must never exchange these parts with those of another vehicle.
After replacing the vehicle communication interface module, you must 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.