2012 Buick Regal BaseFACTORY OEM SERVICE PROCEDURE

Communication Interface Module Replacement

WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Communication Interface Module
GM2193970Courtesy of GENERAL MOTORS CORP.
Callout Component Name

Preliminary Procedure

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the instrument panel lower trim panel replacement. Refer to Instrument Panel Lower Trim Panel Replacement - Left Side .
  3. Remove the instrument panel lower extension side trim panel. Refer to Instrument Panel Lower Extension Side Trim Panel Replacement .
  4. Remove the instrument panel lower center trim panel. Refer to Instrument Panel Lower Center Trim Panel Replacement .
1 Instrument Panel Wiring Harness Protector
2 Wireless Communication Interface Antenna
3 Communication Interface Module

Procedure

  1. Disconnect the electrical connections.
  2. For programming and set up information. Refer to Control Module References .
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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.