GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2005 🢒 Grand Prix 🢒 Body 🢒 Instrument Panel, Gages, and Console 🢒 Ignition Switch Lock Cylinder Replacement

Removal Procedure

    Object Number: 910510 Size: SH
  1. Disconnect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  2. Use a plastic trim tool to remove the ignition switch bezel.

    3. Object Number: 519619 Size: SH
  3. Remove the instrument panel (I/P) accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement .
  4. Remove the left I/P insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side .
  5. Remove the opening filler panel from the I/P steering column. Refer to Steering Column Opening Filler Replacement .
  6. Remove the I/P driver knee bolster. Refer to Driver Knee Bolster Replacement .
  7. Remove the ignition switch bolts.

    8. Object Number: 929187 Size: SH
  8. Lower the ignition switch away from the I/P trim pad.
  9. Insert the key into the ignition lock cylinder. Turn the key to the ON/RUN position.

    10. Object Number: 928654 Size: SH
  10. Depress and hold the detent on the bottom of the ignition switch in order to release the ignition lock cylinder. Remove the ignition lock cylinder with the key.
  11. Remove the key from the lock cylinder.

    12. Object Number: 639144 Size: SH
  12. Disengage the theft deterrent reader/exciter module retainers (1,2).

    13. Remove the theft deterrent reader/exciter module (3) from the lock cylinder housing.

  13. Remove the lock cylinder.
  14. If the cylinder does not rotate, follow the procedure in the ignition switch replacement. Refer to Ignition and Start Switch Replacement .

Installation Procedure

    Object Number: 639144 Size: SH
  1. Code the ignition lock cylinder , if necessary. Refer to Key and Lock Cylinder Coding in General Information.
  2. Slide the theft deterrent reader/exciter module (3) onto the ignition lock cylinder housing. Verify that the retainers (1,2) are engaged.
  3. Insert the key to the lock cylinder.

    4. Object Number: 1055856 Size: SH
  4. Turn the key to the ON/RUN position. Install the ignition lock cylinder into the ignition switch.

    5. If you turned the key slightly while removing the lock cylinder, you may have to align the white ignition switch rotor (1) with the lock cylinder (2). You can rotate the switch rotor with your finger.

  5. Remove the key.
  6. Position the ignition switch to the I/P trim pad.

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


    Object Number: 519619 Size: SH
  7. Install the ignition switch bolts.

    8. Tighten
    Tighten the bolts to 10 N·m (89 lb in).

  8. Install the I/P driver knee bolster. Refer to Driver Knee Bolster Replacement .
  9. Install the I/P steering column opening filler panel. Refer to Steering Column Opening Filler Replacement .
  10. Install the left I/P insulator. Refer to Instrument Panel Insulator Panel Replacement - Left Side .
  11. Install the I/P accessory trim plate. Refer to Instrument Panel Accessory Trim Plate Replacement .

    12. Object Number: 910510 Size: SH
  12. Install the ignition switch bezel.
  13. Connect the battery ground cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.