IMPORTANT: 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.

Remove the right insulator panel. Refer to Closeout/Insulator Panel Replacement - Right in Instrument Panel, Gages and Console.
Remove the instrument panel compartment. Refer to Compartment Replacement - Instrument Panel (I/P) in Instrument Panel, Gages and Console.

Fig 1: Locating VCIM Bracket To Instrument Panel Metal Brace Screws

Courtesy of GENERAL MOTORS CORP.

Remove the screws securing the VCIM bracket to the instrument panel metal brace.

Fig 2: View Of Communication Interface Module Electrical Connectors

Courtesy of GENERAL MOTORS CORP.

Disconnect the electrical connectors.
Disconnect the cell antenna coaxial cable from the VCIM.

IMPORTANT: The old VCIM must be returned for core credit.

Remove the VCIM from the bracket and the vehicle.

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.

Safety Warning

Removal Procedure

Use the Manual With the Right Hardware

When to See a Mechanic