Removal Procedure

Important:  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.

1. Remove the drivers knee bolster. Refer to KNEE BOLSTER REPLACEMENT - LEFT .
2. Disconnect the electrical connectors and the coaxial cable (2) from the module.
3. Release the communication interface module retaining tab (1).
4. Remove the communication interface module (3) from the module bracket.
Fig 1: Removing Communication Interface Module
Courtesy of GENERAL MOTORS CORP.