GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2008 🢒 H2 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Cellular Communications/Digital Radio Antenna Replacement

Removal Procedure

    Object Number: 853340 Size: SH

    Notice: DO NOT apply paint or clear coat to the antenna. This will damage the function of the antenna, causing poor reception or loss of signal reception.

  1. Remove the windshield side garnish molding. Refer to Windshield Side Garnish Molding Replacement .
  2. Remove the sunshade from the headliner. Refer to Sunshade Replacement .
  3. Remove the center pillar upper garnish molding. Refer to Center Pillar Upper Garnish Molding Replacement .

    4. Important: Complete removal of the headliner is not required.

  4. Lower the front corner of the headliner. Refer to Headlining Trim Panel Replacement .

    5. Object Number: 838978 Size: SH
  5. Disconnect the wire harness to the roof antenna.
  6. Remove the antenna fastener.
  7. Remove the antenna from the roof.

Installation Procedure

    Object Number: 853340 Size: SH
  1. Attach the antenna base to the roof.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the retainer and bolt to the antenna.

    3. Tighten
    Tighten the bolt to 9 N·m (80 lb in).


    Object Number: 838978 Size: SH
  3. Connect the electrical connector to the antenna.
  4. Position the headliner back to the roof. Refer to Headlining Trim Panel Replacement .
  5. Install the sunshade to the headliner. Refer to Sunshade Replacement .
  6. Install the windshield side garnish molding. Refer to Windshield Side Garnish Molding Replacement .
  7. Install the center pillar upper garnish molding. Refer to Center Pillar Upper Garnish Molding Replacement .