GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 SRX 🢒 Driver Information and Entertainment 🢒 Cellular, Entertainment, and Navigation 🢒 Communication Interface Module Replacement

Object Number: 1823954 Size: MF

Callout

Component Name

Preliminary Procedure

Remove the outer radio rear speaker. Refer to Radio Rear Speaker Replacement.

1

Communication Interface Module Nut (Qty: 2)

Caution: Refer to Fastener Caution in the Preface section.

Tighten
9 N·m (80 lb in)

2

Communication Interface Module

Procedure:

  1. Disconnect the electrical connectors.
  2. Reprogram the communication interface module if replaced. Refer to Control Module References.
  3. If replacing the communication interface module be sure to transfer Bluetooth Antenna, if equipped.
  4. When replacing the VCIM, record the 11-digit electronic serial number (ESN) and the 10-digit station identification (STID) number from the label on the new VCIM.

Tip

    • 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.
    • 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.