Communication Interface Module Replacement. Chevrolet Impala 2009

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2009 🢒 Impala 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Communication Interface Module Replacement

Callout

Component Name

Preliminary Procedures

Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
Pull back the left rear compartment trim panel in order to expose the communication interface module.
For programming and set up, Refer to Control Module References.

Communication Interface Bolt/Screw (Qty: 3)

Caution: Refer to Fastener Caution in the Preface section.

Tip

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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.

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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.

•	When replacing the VCIM be sure to transfer Bluetooth Antenna, if equipped.

Tighten
5 N·m (44 lb in)

Communication Interface Module

Procedure

For programming and set up information, refer to Control Module References.