Aztek V6-3.4L VIN E (2001)
Cellular Phone: Service and Repair
OnStar(R) Vehicle Interface Unit (VIU) Replacement
IMPORTANT: Never swap OnStar(R) Vehicle Integration Units (VIU), or the Vehicle Communication Units (VCU) from other vehicles. Transfer of
OnStar(R) components from other vehicles should NOT be done. Each OnStar(R) component has a unique identification number. The VIU has a 10 -
digit Specific Station Identification (STID) and the VCU has a 11 - digit specific Electronic Serial Number (ESN). These identification numbers are
used by the National Cellular Telephone Network and OnStar(R) systems, and are stored in the General Motors vehicle history files by VIN.
Removal Procedure
1. Remove the right insulator panel.
2. Remove the instrument panel compartment.
3. Remove the screws securing the VIU bracket to the instrument panel metal brace.
4. Disconnect the red 32 - way electrical connectors and the blue 32 - way electrical connector.
5. Disconnect the Global Position System (GPS) cables from the VIU.
