GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2003 🢒 Grand Prix 🢒 Steering 🢒 Steering Wheel and Column 🢒 Ignition Lock Cylinder Case Replacement

Removal Procedure

    Caution: Refer to SIR Caution in the Preface section.


    Object Number: 324877 Size: SH
  1. Disable the SIR system. Refer to SIR Disabling and Enabling in SIR.
  2. Remove the turn signal cancel cam. Refer to Turn Signal Cancel Cam and Steering Shaft Upper Bearing Spring Replacement .
  3. Remove the ignition lock cylinder. Refer to Ignition Lock Cylinder Replacement .
  4. Slide the PASSKEY® III (2) off of the ignition lock cylinder case (1).

    5. Object Number: 368484 Size: SH
  5. Remove the connector (2) from the theft deterrent control module (3).
  6. Remove the TORX® head screw (1) from the theft deterrent control module (3).

    7. Object Number: 368489 Size: SH
  7. Remove the theft deterrent control module (2) from the ignition lock cylinder case (1).

    8. Object Number: 306267 Size: SH
  8. Remove the key alarm connector (1) from the ignition lock cylinder case (2).
    9. 8.1. Rotate the key alarm connector (1) 90 degrees.
    8.2. Pull the key alarm connector (1) out of the ignition lock cylinder case (2).

    Object Number: 306272 Size: SH
  9. Remove the 2 tapping screws (2) from the ignition switch assembly (1).
  10. Let the ignition switch assembly (1) hang freely.

    11. Object Number: 368510 Size: SH

    Important: The lock bolt assembly (4) is under slight spring tension from the lock bolt spring (3). Hold the lock bolt (4) in place while removing the ignition lock cylinder case (2).

  11. Remove the 3 pan head tapping screws (1) from the ignition lock cylinder case (2).
  12. Remove the ignition lock cylinder case (2) from the steering column tilt head assembly (5).
  13. Remove the lock bolt assembly (4) from the steering column tilt head assembly (5).
  14. Remove the lock bolt spring (3) from the lock bolt assembly (4).

Installation Procedure

    Object Number: 368510 Size: SH
  1. Install the lock bolt spring (3) into the steering column tilt head assembly (5).
  2. Position the cutout in the lock bolt assembly (4) at the 6 o'clock position.
  3. Install the lock bolt assembly (4) into the steering column tilt head assembly (5).
  4. Push the lock bolt assembly (4) into the steering column tilt head assembly (5) until the lock bolt assembly (4) is flush with the steering column tilt head assembly (5).
  5. Align the ignition lock cylinder case (2) with the steering column tilt head assembly (5).

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

  6. Screw the 3 pan head tapping screws (1) into the ignition lock cylinder case (2).

    7. Tighten
    Tighten the screws to 7 N·m (62 lb in).


    Object Number: 306272 Size: SH

    Caution: Improper routing of the wire harness assembly may damage the inflatable restraint steering wheel module coil. This may result in a malfunction of the coil, which may cause personal injury.

  7. Install the ignition switch assembly (1) onto the ignition lock cylinder case.
  8. Screw the 2 tapping screws (2) into the ignition switch assembly (1).

    9. Tighten
    Tighten the screws to 1.5 N·m (13 lb in).


    Object Number: 368489 Size: SH
  9. Install the theft deterrent control module (2) onto the ignition lock cylinder case (1).

    10. Object Number: 368484 Size: SH
  10. Screw the TORX® head screw (1) into the theft deterrent control module (3).

    11. Tighten
    Tighten the screw to 1.5 N·m (13 lb in).

  11. Reconnect the connector (2) to the theft deterrent control module (3).

    12. Object Number: 306267 Size: SH
  12. Install the key alarm connector (1) onto the ignition lock cylinder case (2).
    13. 12.1. Push the key alarm connector (1) into the ignition lock cylinder case (2).
    12.2. Rotate the key alarm connector 90 degrees so that the key alarm connector (1) locks into place.
  13. Install the ignition lock cylinder.

    14. Object Number: 324877 Size: SH
  14. Slide the PASSKEY® III (2) onto the ignition lock cylinder case (1).
  15. Install the turn signal cancel cam. Refer to Turn Signal Cancel Cam and Steering Shaft Upper Bearing Spring Replacement .
  16. Install the ignition lock cylinder. Refer to Ignition Lock Cylinder Replacement .
  17. Enable the SIR system. Refer to SIR Disabling and Enabling .