Removal Procedure

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

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.

Position the right rear seat bottom to a cargo position.
Remove the protective cover from the vehicle communication interface module (VCIM).

Fig 1: Removing Protective Cover From Vehicle Communication Interface Module
Courtesy of GENERAL MOTORS CORP.
Remove the module from the upper bracket by releasing the retaining tab.

Fig 2: Removing Module From Upper Bracket
Courtesy of GENERAL MOTORS CORP.
Remove the electrical connectors from the VCIM.
Remove the VCIM from the vehicle

Fig 3: Removing Electrical Connectors From VCIM
Courtesy of GENERAL MOTORS CORP.