The communication interface module replacement procedure is outlined in the manual. It is important to record the 11-digit electronic serial number and 10-digit station identification number from the new module label. The procedure includes steps for removal, installation, and reconfiguration of the module.
Removal Steps:
Disconnect the antenna and electrical connections, remove the bolts, and take out the module.
Installation Steps:
Record the ESN and STID numbers, position the module in the vehicle, install the bolts, and connect the antenna cable and electrical connections.
Important Notes:
After replacing the module, reconfigure the OnStar system and refer to Control Module References for programming and setup information.
Manual:
Download: 2008 Buick Lucerne Lucerne (VIN H) Service Manual
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