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HOMESERVICE MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1 (CELLULAR COMMUNICATION SYSTEMS)REPAIR INSTRUCTIONSCOMMUNICATION INTERFACE MODULE REPLACEMENTINSTALLATION PROCEDURE
2006 Buick Terraza CXL, 3.5 L, AWD

Installation Procedure

2006 Buick Terraza CXL, 3.5 L, AWDSECTION Installation Procedure
WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Communication Interface Module Electrical Connectors
    GM1204602Courtesy of GENERAL MOTORS CORP.
  1. If you are replacing the VCIM, record the 10-digit standard identification (STID) number and the 11-digit electronic serial number (ESN) from the labels on the new module.
    2. NOTE: Before you install the antenna cable connector of the global positioning system (GPS) to the vehicle communication interface module (VCM), align the connector properly in order to avoid damaging the connector.
  2. Connect the navigation antenna coaxial cable to the module.
  3. Connect the electrical connectors.
  4. Connect the mobile telephone antenna cable to the module by pushing inward on the square plastic housing.
    5. Fig 2: View Of Communication Interface Module
    GM1230652Courtesy of GENERAL MOTORS CORP.
  5. Align the module to the vehicle antenna module bracket.
    6. NOTE: Refer to Fastener Notice in Cautions and Notices.
  6. Install the communication interface module screws.

    Tighten:  Tighten the screws to 2 N.m (18 lb in).

  7. Install the HVAC module. Refer to HVAC Control Assembly Replacement .
  8. Install the center console. Refer to Console Replacement - Front Floor .
    9. IMPORTANT: After replacing the vehicle communication interface module, 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.
  9. Reconfigure the OnStar® System. Refer to OnStar Reconfiguration .
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.