Cellular and Navigation Antenna Assembly Replacement Without Sunroof

1. Remove the windshield garnish molding. Refer to Windshield Upper Garnish Molding Replacement in Interior Trim.
2. Remove the sunshade from the headliner. Refer to Sunshade Replacement in Interior Trim.
3. Remove the door edge molding from the door opening. Refer to Front Side Door Trim Panel Replacement in Doors.
4. Lower the front corner of the headliner. Refer to Headlining Trim Panel Replacement in Interior Trim.



5. Disconnect the wire harness from the roof antenna .
6. Remove the antenna nut.
7. Remove the antenna from the roof.

Notice: Refer to Fastener Notice in the Preface section.




1. Attach the antenna base to the roof and fasten the antenna nut.

Tighten
Tighten the nut to 2 N·m (18 lb in).




2. Connect the electrical connector to the antenna.
3. Push the headliner back into place. Refer to Headlining Trim Panel Replacement in Interior Trim.
4. Attach the sunshade to the headliner. Refer to Sunshade Replacement in Interior Trim.
5. Attach the windshield garnish molding. Refer to Windshield Upper Garnish Molding Replacement in Interior Trim.

Cellular and Navigation Antenna Assembly Replacement With Sunroof

1. Remove the OnStar® microphone. Refer to Mobile Telephone Microphone Replacement.
2. Remove the reading lamp assembly. Refer to Reading Lamp Replacement .
3. Lower the front corner of the headliner. Refer to Headlining Trim Panel Replacement.



4. Disconnect the wire harness from the roof antenna .
5. Remove the antenna nut.
6. Remove the antenna from the roof.

Notice: Refer to Fastener Notice in the Preface section.




1. Attach the antenna base to the roof and fasten the antenna nut.

Tighten
Tighten the nut to 2 N·m (18 lb in).




2. Connect the electrical connector to the antenna.
3. Push the headliner back into place. Refer to Headlining Trim Panel Replacement.
4. Install the reading lamp. Refer to Reading Lamp Replacement .
5. Install the OnStar® microphone. Refer to Mobile Telephone Microphone Replacement.