Removal Procedure

WARNING: This page is about a different car, the 2008 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Communication Interface Module

Courtesy of GENERAL MOTORS CORP.

Remove the communication interface module. Refer to Communication Interface Module Replacement .
Disconnect the vehicle interface unit module electrical connector (1).
Remove the vehicle interface unit module retaining nut (2), then the module.