GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2005 🢒 GTO 🢒 Preface 🢒 Cautions and Notices 🢒 Ignition Lock Cylinder Replacement

Removal Procedure
  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Remove the key from the ignition switch.
  3. Remove the knee bolster assembly. Refer to Driver Knee Bolster Replacement in Instrument Panel, Gages, and Console.
  4. Remove the steering column trim covers. Refer to Steering Column Trim Covers Replacement .
  5. Tilt the column to the lowest position and telescope the column to the longest position.

    6. Object Number: 1381615 Size: SH
  6. Disconnect the connector (4) from the theft deterrent reader assembly (3).
  7. Remove the ignition lock illumination socket (1) and the bulb (2) from the reader assembly.
  8. Remove the reader assembly from the ignition lock cylinder.

    9. Object Number: 1381620 Size: SH
  9. Insert the key (3) into the ignition lock cylinder (2).
  10. Turn the key to the ON position.
  11. Ensure the steering column is NOT locked.
  12. Insert an Allen key, or an equivalent 2.5 mm (0.098 in) diameter drift, into the locking pin hole.

    13. Press the spring loaded barrel locking latch in order to release the ignition lock cylinder.

  13. Rotate the key slightly and remove the ignition lock cylinder from the housing.

Installation Procedure

    Object Number: 1413199 Size: SH
  1. Verify the steering column is not locked.

    2. If the steering column is locked, complete the following steps:

    1.1. Inspect the inside of the ignition lock cylinder housing (1) on the steering column.
    1.2. Locate the steering column lock tab (3) on the right side of the housing, toward the front of the vehicle.
    1.3. Place a flat-bladed tool on the steering column lock tab.
    1.4. Rotate the steering wheel slightly and push the steering column lock tab down.
  2. Insert the key into the ignition lock cylinder.
  3. Turn the key to the ON position.
  4. Look through the ignition lock cylinder housing in order to inspect the keyed hole (2) in the ignition switch.
  5. Rotate the key slightly and align the keyed tip of the ignition lock cylinder with the keyed hole in the ignition switch.
  6. Install the cylinder to the housing.

    7. Ensure the latch locks into the housing.

  7. Remove the key from the ignition lock cylinder.

    8. Ensure the ignition lock cylinder spring moves the lock cylinder toward the right side of the vehicle.


    Object Number: 1381621 Size: SH
  8. Align the flat edge (3) on the theft deterrent reader assembly (4) with the flat edge (2) on the ignition lock cylinder (1).
  9. Align the indexing lug (5) on the reader assembly with the groove (6) on the ignition lock cylinder.

    10. Object Number: 1381622 Size: SH
  10. Gently push on the reader assembly (1) between the flat edge and the indexing lug in order to install the reader assembly onto the ignition lock cylinder.
  11. Install the bulb and the illumination socket to the reader assembly.
  12. Connect the connector to the reader assembly.
  13. Install the steering column trim covers. Refer to Steering Column Trim Covers Replacement .
  14. Install the knee bolster assembly. Refer to Driver Knee Bolster Replacement in Instrument Panel, Gages, and Console.
  15. Enable the SIR system. Refer to SIR Disabling and Enabling in SIR.