GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 41364-A Park Neutral Switch Aligner

Removal Procedure

  1. Apply the parking brake.
  2. Shift the transmission into NEUTRAL.
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

  4. Object Number: 1302094  Size: SH
  5. Remove the nut securing the transmission control lever to the manual shaft.
  6. Remove the transmission control lever from the manual shaft.

  7. Object Number: 1302100  Size: SH
  8. Disconnect the electrical connector (3) from the switch (4).

  9. Object Number: 1302093  Size: SH
  10. Remove the bolts securing the park/neutral back up switch to the transmission.
  11. Important: If the switch does not slide off the manual shaft, the outer edge of the manual shift shaft may need to be filed to remove any burrs.

  12. Remove the park/neutral back up switch from the manual shaft.

Installation Procedure


    Object Number: 1302093  Size: SH
  1. Install the park/neutral back up switch to the transmission manual shaft by aligning the switch hub flats with the manual shaft flats.
  2. Slide the switch onto the transmission manual shaft until the switch mounting bracket contacts the mounting bosses on the transmission.
  3. Important: If a new switch is being installed, the switch will come with a positive assurance bracket. The positive assurance bracket aligns the new switch in the proper position for installation and the use of the J 41364-A will not be necessary.

  4. Loosely install the 2 park/neutral back up switch bolts.

  5. Object Number: 102270  Size: SH
  6. Position the J 41364-A onto the park/neutral back up switch. Ensure that the 2 slots on the switch where the manual shaft is inserted are lined up with the lower 2 tabs on the tool.
  7. Notice: Refer to Fastener Notice in the Preface section.

  8. Rotate the switch until the upper locator pin on the tool is lined up with the slot on the top of the switch.
  9. Tighten
    Tighten the park/neutral back up switch bolts 27 N·m (20 lb ft).

  10. Remove the J 41364-A from the switch. If installing a new switch, remove the positive assurance bracket at this time.

  11. Object Number: 1302100  Size: SH
  12. Connect the electrical connector (3) to the switch (4).

  13. Object Number: 1302094  Size: SH
  14. Install the transmission control lever to the manual shaft with the nut.
  15. Tighten
    Tighten the control lever nut to 20 N·m (15 lb ft).

  16. Lower the vehicle.
  17. Adjust the automatic transmission range selector cable. Refer to Range Selector Lever Cable Adjustment .
  18. Check the switch for proper operation. The engine must start in the P (PARK) or N (NEUTRAL) positions only. If proper operation of the switch can not be obtained, replace the switch.