GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 36346 Fascia Retainer Remover
    • J 45404 Transmission Indicator Alignment Tool

Removal Procedure

  1. Apply the parking brake.
  2. Place the transmission shift lever in the neutral position.

  3. Object Number: 866191  Size: SH
  4. Using the J 36346 or equivalent, disconnect the shift cable from the transmission control.
  5. Disconnect the Park/neutral position switch harness connector.

  6. Object Number: 880085  Size: SH
  7. Remove the transmission control nut (1) and lever (2).

  8. Object Number: 866189  Size: SH
  9. Using a small screwdriver, bend the lock washer tabs down on the manual shaft nut.

  10. Object Number: 749328  Size: SH
  11. Remove the manual shaft nut (78), lock washer (77) and flat washer (74).

  12. Object Number: 749329  Size: SH
  13. Remove the park/neutral position switch bolt (79), stud (76) and lock washers.
  14. Remove the park/neutral position switch (75) from the transmission.

Installation Procedure


    Object Number: 749329  Size: SH
  1. Install the park/neutral position switch (75) to the manual valve lever shaft and transmission.
  2. Install the park/neutral position switch bolt (79), stud (76) and lock washers. Hand tighten only.
  3. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 749328  Size: SH
  4. Install the flat washer (74), lock tab washer (77) and nut (78) to the manual shaft.
  5. Tighten
    Tighten the nut to 7 N·m (62 lb in).


    Object Number: 749823  Size: SH

    Important: The transmission manual shaft must be in the neutral position when adjusting the park/neutral position switch.

  6. If installing the old park/neutral position switch, perform the following procedure:
  7. 4.1. Install the J 45404 to the manual shaft in order to align the pointer to the neutral base line.
    4.2. Rotate the park/neutral position switch as necessary to align the neutral base line to the pointer.
    4.3. Remove the J 45404 from the manual shaft.
  8. Tighten the park/neutral position switch bolt and stud.
  9. Tighten
    Tighten the bolt and stud to 25 N·m (18 lb ft).


    Object Number: 866193  Size: SH
  10. Lock the manual shaft nut by bending the lock washer tab upwards flush with the nut.
  11. Connect the park/neutral position switch harness connector.

  12. Object Number: 880085  Size: SH
  13. Install the transmission control lever (2) and nut (1).
  14. Tighten
    Tighten the nut to 16 N·m (12 lb ft).


    Object Number: 866191  Size: SH
  15. Connect the shift cable to the transmission control lever.
  16. Verify the park/neutral position switch adjustment by starting the vehicle in all ranges. If the transmission starts in any range other than park or neutral, readjust the park/neutral position switch.