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Ignition Switch: Removal

CAUTION: Before servicing any electrical component, ignition key must be in LOCK position and all electrical loads must be off, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to vehicle or its components.
  1. Disconnect negative battery cable.
  2. Disable Supplemental Inflatable Restraint (SIR) system. See appropriate AIR BAG RESTRAINT SYSTEMS article.
  3. Using a small flat-bladed tool, remove ignition switch trim ring from ignition switch. Disconnect cigar lighter harness connector.
  4. Remove accessory trim plate from instrument panel carrier.
  5. Remove upper steering column trim cover from steering column.
  6. Remove instrument cluster trim plate from instrument panel carrier.
  7. Remove instrument panel cluster from instrument panel carrier.
  8. Remove ignition switch bolts from ignition switch.
  9. Disconnect electrical connectors from ignition switch.
  10. Insert key into ignition switch lock cylinder. Rotate key to RUN position.
  11. Perform the following steps if ignition switch lock cylinder is seized or won't rotate:
    • Protect immediate work area with suitable material such as clean shop towels or a clean fender cover.
    • Locate surface for ignition switch lock cylinder release button (2) on plastic ignition switch housing and center punch a location on rib (1) approximately 3/8 inch reward (toward key entry end) from cylinder release button. See Fig 1 .
    • Carefully drill a pilot hole through plastic housing with a 1/8 inch drill bit.
    • Carefully drill a larger hole at pilot location, and slightly into ignition switch lock cylinder surface to break release button retaining spring using a 9/32 inch drill bit.
    • Remove portions of broken spring from hole using a small suitable tool.
    • Grasp ignition switch lock cylinder and remove it from switch housing.
    • Remove any plastic "flash" from drilling operation, and using compressed air blow out ignition switch assembly.
    • Follow service manual procedures when cylinder re-coding is required.
  12. Depress transaxle park/lock cable retainer to release, then pull to remove park/lock cable from ignition switch.
  13. Press ignition switch lock cylinder release plunger. The release plunger is located at four o'clock position on ignition switch housing.
  14. Use key in order to pull ignition switch lock cylinder from ignition switch housing.
  15. Disconnect PASS KEY electrical connector from ignition switch housing.
  16. Remove ignition switch from vehicle.
Fig 1: Removing Ignition Switch Lock Cylinder
G00056806Courtesy of GENERAL MOTORS CORP.