GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Disconnect the negative battery cable. Refer to

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

    in General Information.
  2. Remove the console trim plate. Refer to Section 8C.

  3. Object Number: 13684  Size: SH
  4. Remove the park/neutral position switch mounting nuts.
  5. Remove the park/neutral position switch.

  6. Object Number: 13685  Size: SH
  7. Remove the gage pin.

Installation Procedure

New Switch

  1. Place the shift control lever in N (Neutral).

  2. Object Number: 13684  Size: SH
  3. Insert the carrier tang on the switch into the slot on the shifter.

  4. Object Number: 13684  Size: SH
  5. Install the mounting nuts.
  6. Tighten
    Tighten the nuts to 3 N·m (26 lb in).

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Important: If the holes do not align with the shift control, verify that the shift control lever in is the N (Neutral) position. Do not rotate the switch. The switch is pinned in the N (Neutral) position. If the switch has been rotated and the pin in broken, adjust the switch. Refer to Old Switch Installation.

  7. Move the shift control lever out of the N (Neutral) position in order to shear the plastic pin.

  8. Object Number: 13685  Size: SH
  9. Install the gage pin.
  10. Install the console trim plate. Refer to Section 8C.
  11. Important: Ensure that the engine will only start in the P (Park) and N (Neutral) position. If the engine will start in any other position, readjust the switch. Refer to Old Switch Installation.

  12. Connect the negative battery cable.

Old Switch

  1. Place the shift control lever in N (Neutral).

  2. Object Number: 13684  Size: SH
  3. Insert the carrier tang on the switch into the slot on the shifter.

  4. Object Number: 13684  Size: SH
  5. Install the assembly mounting nuts to the case, loosely.
  6. Rotate the switch in order to align the service adjustment hole with the carrier tang hole.

  7. Object Number: 13685  Size: SH
  8. Insert the gage pin 2.34 mm (0.094 in.) into the service adjustment hole. Rotate the switch until the pin drops to a depth of 15 mm (0.59 in.).
  9. Tighten
    Tighten the switch retaining nuts to 3 N·m (26 lb in.).

  10. Install the gage pin.
  11. Install the console trim plate. Refer to Section 8C.
  12. Important: Ensure that the engine will only start in the P (Park) or N (Neutral) position. If the engine will start in any other position, readjust the switch.

  13. Connect the negative battery cable.