LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> Steering >> Steering Column >> Steering Wheel And Column >> Repair Instructions >> Ignition Switch Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

  1. Insert into the ignition lock cylinder case assembly (1).
    Fig 1: Identifying Ignition Switch Assembly & Lock Cylinder Case Assembly
    GM664261Courtesy of GENERAL MOTORS CORP.
  2. Connect the connector to the ignition switch assembly (2).
  3. Fig 2: Identifying Key Alarm Connector At Ignition Lock Cylinder Case
    GM306267Courtesy of GENERAL MOTORS CORP.
  4. Push the key alarm connector (1) into the ignition lock cylinder case assembly (2).
  5. Rotate the key alarm connector (1) 90 degrees so that the key alarm connector (1) locks into place.
  6. Install the wires back into the ignition switch clip.
  7. Install the steering wheel theft deterrent lock. Refer to Steering Wheel Theft Deterrent Lock Replacement .
  8. If equipped, install the theft deterrent control module.
  9. Enable the SIR system. Refer to SIR Disabling and Enabling Zone 3 .