GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2003 🢒 H2 🢒 Preface 🢒 Cautions and Notices 🢒 OnStar Button Assembly Replacement

Removal Procedure
  1. Loosen and move rearward center console for access to center trim panel. Refer to Console Replacement in Instrument Panel, Gages and Console.

    2. Object Number: 815865 Size: SH
  2. Remove screws that hold communication interface module to instrument panel.

    3. Object Number: 862352 Size: SH
  3. Remove screws that hold three button face plate from communication interface module.
  4. Disconnect electrical connector to three button faceplate.

Installation Procedure
  1. Install electrical connector from three button faceplate to communication interface module.

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


    Object Number: 862352 Size: SH
  2. Tighten screws that hold three button faceplate to communication interface module.

    3. Tighten
    Tighten screws to 2 N·m (18 lb in).


    Object Number: 815865 Size: SH
  3. Install communication interface module to instrument panel. Refer to Communication Interface Module Replacement in Instrument Panel, Gages and Console.
  4. Install center bezel and move forward center console. Refer to Console Replacement in Instrument Panel, Gages and Console.