Removal Procedure

IMPORTANT: The communication interface module 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.

Remove the right closeout panel. Refer to Closeout/Insulator Panel Replacement - Right in Instrument Panel, Gages and Console.
Disconnect the communication interface module wire harness and antenna connectors.

Fig 1: Disconnecting/Connecting Cable From Communications Module

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Remove the communication interface module bolts.

Fig 2: Removing/Installing Communication Interface Module

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Remove the communication interface module.