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Home >> Cadillac >> 2003 >> CTS Automatic >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Cellular Communication System >> Repair Instructions >> Communication Interface Module Replacement >> Installation procedure
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Installation procedure

  1. When replacing a generation 4 VCIM only, record the 11-digit electronic serial number (ESN) and the 10-digit station identification (STID) number from the label on the new VCIM.
  2. Reconnect the electrical connectors the module.
    Fig 1: Reconnecting Electrical Connectors To Module
    G02095463Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  3. Install the module onto the vehicle.

    Tighten 

    Tighten the nuts to 9 N.m (80 lb in).

    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.

  4. Install the scan tool. Use the special functions menu in order to perform the OnStar® setup procedure for this vehicle.
  5. Move the vehicle to an open area that is away from tall buildings and with a clear view of unobstructed sky. Allow the vehicle to run for 10 minutes.
    Fig 2: Installing Nuts Securing OnStar® Module To Vehicle Body
    G02095464Courtesy of GENERAL MOTORS CORP.
  6. Use the ID information menu on the scan tool to access the new STID and the ESN and from the new VCIM.
  7. Press the blue OnStar® button to connect to the OnStar® Call Center. Tell the advisor that this vehicle has received a new VCIM and ask the advisor to perform the following procedure:
    1. 7.1. Add the new STID and the ESN to update the customer's account.
    2. 7.2. Activate the OnStar® Personal Calling feature, if available.
    3. 7.3. Perform a full reconfiguration on the vehicle.
  8. Follow any additional instructions from the OnStar® advisor.
  9. Voice recognition in the generation 4 module CANNOT be changed. The default language for voice recognition in the generation 5 OnStar® module is English. To change the language resident in the module, refer to Service Programming System (SPS) (Remote Procedure) or Service Programming System (SPS) (Pass-Thru Procedure) in Programming.
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