LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 559 (Cellular Communication System) >> Repair Instructions >> OnStar® Button Assembly Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

WARNING: This page is about a different car, the 2004 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install electrical connector from three button faceplate to communication interface module.
    2. Fig 1: Electrical Connector & Three Button Faceplate
    GM862352Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Tighten screws that hold three button faceplate to communication interface module.

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

    3. Fig 2: Communication Interface Module & I/P
    GM815865Courtesy of GENERAL MOTORS CORP.
  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.
scientia non olet · About LEMON Manuals