GM Service Manual Online
For 1990-2009 cars only

    Object Number: 102215  Size: SH
  1. Position the steering column transmission shift lever to PARK (P).
  2. Apply the parking brake.
  3. Raise the vehicle. Support the vehicle with safety stands. Refer to Lifting and Jacking the Vehicle in General Information.

  4. Object Number: 102224  Size: SH
  5. Position the transmission range select lever to PARK (P). Rotate the range select lever clockwise until it reaches the full mechanical stop position.

  6. Object Number: 102234  Size: SH
  7. Slide the black retaining clip forward on the range select lever cable end. This will allow the white lock button to be pushed out.

  8. Object Number: 102241  Size: SH
  9. Push the white lock button on the range select lever cable end out. This will free the metal core adjust body which is inside the cable end. Do not push the white lock button completely out.
  10. Inspect the metal core adjust body on the cable end for dirt or debris that may restrict the travel. Remove any debris by washing the cable end, the metal core adjust body, and the white lock button with soap and water. If the travel of the metal core adjust body remains restricted after the cleaning, replace the cable assembly. Refer to Shift Cable Replacement .
  11. Remove the safety stands.
  12. Lower the vehicle.
  13. Ensure that the parking brake is applied.
  14. Turn ON the ignition switch.

  15. Object Number: 102245  Size: SH
  16. Move the transmission shift lever from PARK (P) to 1 and back to PARK (P) ten times.

  17. Object Number: 102215  Size: SH
  18. Place the steering column transmission shift lever in the Park (P) position.
  19. Turn the ignition switch to the OFF position.
  20. Raise the vehicle. Support the vehicle with safety stands.

  21. Object Number: 102224  Size: SH
  22. Position the transmission range select lever to PARK (P). Rotate the range select lever clockwise until it reaches the mechanical stop position.

  23. Object Number: 102249  Size: SH
  24. Push in the white lock button in order to secure the core adjuster body inside the range select lever cable end.

  25. Object Number: 102234  Size: SH
  26. Slide the black retainer clip rearward over the cable end until it covers the white lock button. Lock the clip over the cable end.
  27. Remove the safety stands.
  28. Lower the vehicle.
  29. Turn ON the ignition switch.
  30. Ensure that all the transmission shift light positions (P, R, N, D, 3, 2, 1) engaged and illuminate. If you cannot perform this task, repeat the cable adjustment procedures.
  31. Caution: With the selector lever in the PARK position, the parking pawl should freely engage within the rear reaction internal gear lugs or output ring hear lugs and prevent the vehicle from rolling, which could cause personal injury.

  32. Position the steering column transmission shift lever to PARK (P). The shift position light should illuminate. If you cannot perform this task, repeat the cable adjust procedures.
  33. Ensure that the engine starts in PARK (P) and in NEUTRAL (N) positions only. If the engine does not start in PARK (P) and in NEUTRAL (N), the Park/Neutral Position Switch may need adjustment. Refer to Park/Neutral Back Up Switch Adjustment .
  34. Turn the ignition switch to LOCK.
  35. Ensure that the ignition key can only be removed with the transmission shift lever in the PARK (P) position.
  36. Start the engine and check the vehicle transmission shifting. The range select lever cable is properly adjusted if the steering column shift light positions are the same as the transmission engagements.
  37. Release the parking brake.