Communication Interface Module Replacement 2

COMMUNICATION INTERFACE MODULE REPLACEMENT (TRAILBLAZER EXT, ENVOY XL)

REMOVAL PROCEDURE
1. Fold and tumble the right second row seat to a cargo position.

IMPORTANT: Do not exchange the vehicle communication interface module with other vehicles. Each vehicle communication interface module has a specific station identification (STID) and electronic serial number (ESN). These identification numbers are stored in the General Motors vehicle history files by VIN and used by OnStar(R) and the National Cellular Telephone Network.




2. Remove the protective cover (1) from the vehicle communication interface module (VCIM).




3. Remove the VCIM from the bracket by releasing the retaining tab (1).
4. Remove the electrical connectors from the VCIM.
5. Remove the VCIM from the vehicle.

INSTALLATION PROCEDURE
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. Position the VCIM near the mounting location.




3. Install the quick connector to the VCIM.




4. Install the remaining electrical connectors to the VCIM.
5. Install the VCIM (1) to the bracket.




6. Ensure the retaining tab (1) is fully seated.




7. Install the protective cover (1) to the module.
8. Position the right second row seat to a passenger position.
9. Install the scan tool. Use the special functions menu in order to perform the OnStar(R) setup procedure for this vehicle.

IMPORTANT: After replacing the vehicle communication interface module, you must reconfigure the OnStar(R) 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(R) system. This action will cause a DTC to set.

10. 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.
11. Use the ID information menu on the scan tool to access the new station ID (STID) and the electronic serial number (ESN) from the new VCIM.
12. Press the blue OnStar(R) button to connect to the OnStar(R) Call Center and perform the following procedure:
12.1. Tell the advisor that this vehicle has received a new VCIM.
12.2. Ask the advisor to add the new STID and the ESN to update the customer's account.
12.3. Follow any additional instructions from the OnStar(R) advisor.
12.4. Ask the advisor to activate the OnStar(R) Personal Calling feature, if available.