GM Service Manual Online
For 1990-2009 cars only
  1. Place the shift lever in the PARK position.
  2. Place the ignition key in the LOCK position.
  3. Ensure the shift lever cannot move to another position. The ignition key should be removable from the column.
  4. Place the ignition key in the RUN position.
  5. Place the shift lever in the NEUTRAL position.
  6. Ensure that the ignition key cannot turn to the LOCK position.
  7. The system is properly adjusted if the above conditions are met. Proceed to step 13.
  8. If the above conditions are not met proceed to step 9.
  9. Pull the cable connector lock back to the UP position.
  10. Readjust the cable connector as outlined.
  11. 10.1. Push the cable connector nose forward to remove the slack.
    10.2. Snap the cable connector lock button down using no load applied to the connector nose.
  12. Push the cable connector lock button down.
  13. Recheck the operation.
  14. If the ignition key cannot be removed in the PARK position, then snap the connector lock button to the UP position.
  15. Move the cable connector nose rearward until the key can be removed from the ignition.
  16. Snap the lock button down.
  17. Reinstall the cable into the clips to provide the correct routing.