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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 307 (Cellular Communication System) >> Repair Instructions >> Communication Interface Module Replacement >> Removal Procedure
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Removal Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. 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 Instrument Panel (I/P) upper trim panel. Refer to TRIM PANEL REPLACEMENT - INSTRUMENT PANEL (I/P) UPPER in Instrument Panel, Gages and Console.
  2. Fully open the I/P storage compartment.
  3. Disconnect the electrical connectors (2) from the Vehicle Communication Interface module (VCIM) (1).
    4. Fig 1: Vehicle Communication Interface module (VCIM), Electrical Connector & Coaxial Cable
    G01457958Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the coaxial cable (3) from the VCIM.
  5. Remove the screws (1, 3) from the passenger side upper I/P support (2).
  6. Remove the passenger side upper I/P support (2).
    7. Fig 2: Removing Passenger Side Upper I/P Support And Screws
    G01457959Courtesy of GENERAL MOTORS CORP.
  7. Remove the screw (1) retaining the VCIM bracket to the I/P.
    8. Fig 3: Removing Screw From VCIM Bracket
    G01457960Courtesy of GENERAL MOTORS CORP.
  8. Remove the retainer from the VCIM bracket.
  9. Remove the nuts holding the mounting brackets to the VCIM.
  10. Remove the VCIM and bracket assembly from the I/P.
    11. Fig 4: Removing VCIM And Bracket Assembly From I/P
    G01457961Courtesy of GENERAL MOTORS CORP.
  11. Remove the nuts (4) from the VCIM mounting brackets (2).
  12. Remove the mounting brackets (2) from the VCIM (1).
    13. Fig 5: Removing Mounting Brackets From VCIM
    G01457962Courtesy of GENERAL MOTORS CORP.
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