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Home >> Hummer >> 2007 >> H3 Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (Cellular Communication System) >> Repair Instructions >> Communication Interface Module Replacement >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2005 GMC Canyon and 2005 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
  1. If replacing the VCIM, record the 10-digit STID number, and the 11-digit ESN number from the labels on the new module.
    2. Fig 1: View Of Bracket Tab
    GM1367811Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the VCIM to the bracket ensuring the retaining tab is fully seated.

    Tighten:  Tighten the screw fully driven, seated and not stripped.

    3. Fig 2: View Of VCIM Electrical Connectors
    GM1365493Courtesy of GENERAL MOTORS CORP.
  3. Connect the VCIM electrical connectors as necessary.
    4. Fig 3: View Of Right I/P Service Panel
    GM1251728Courtesy of GENERAL MOTORS CORP.
  4. Install the service panel.
    5. IMPORTANT: After replacing the VCIM, 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.
  5. Reconfigure the OnStar® system. Refer to OnStar Reconfiguration .
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