GM Service Manual Online
For 1990-2009 cars only

Adjustment Procedure

  1. Place the floor shift lever in the P (Park) position.
  2. Turn the column lock cylinder to the Lock position.
  3. Unseat the body housing lock from the body housing.
  4. Important: 

       • There must be no gap between the metal terminal stop and the protruding end of the white plastic collar. If there is a gap between the terminal stop and the collar, adjust the position of the park lock cable.
       • The white plastic collar must be flush or recessed about 1 mm (0.04 in) within the ignition park lock housing. If the white plastic collar is not in the proper location, adjust the position of the park lock cable.

  5. Adjust the outer cable conduit in order to obtain the proper location for the white plastic housing in the ignition switch. Ensure that the body housing is still attached to the shift control mounting bracket.
  6. Seat the body housing lock in the body housing while holding the outer cable conduit in position.
  7. Inspect the park/lock control cable. Refer to Park Lock Cable Replacement .