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Home >> Chevrolet >> 2004 >> Impala SS >> Repair and Diagnosis >> External Pages >> Different car >> Section 733 (Cellular System, Entertainment System, And Navigation System) >> Repair Instructions >> Communication Interface Module Replacement >> Removal Procedure
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Removal Procedure

WARNING: This page is about a different car, the 2008 Buick Lucerne. 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.
  1. Remove the rear compartment trim. Refer to Rear Compartment Trim Panel Replacement .
  2. Fig 1: View Of VCIM Antenna, Electrical Connections & Bolts
    GM890427Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the antenna (3) and electrical connections (2) from the vehicle communication interface module (VCIM).
  4. Remove the bolts (1) securing the VCIM.
  5. Remove the vehicle VCIM from the vehicle.