GM Service Manual Online
For 1990-2009 cars only
  1. Position the shift lever in NEUTRAL.

  2. Object Number: 1878487  Size: SH
  3. Release the shift control cable adjustment lock cover retaining tab (1).

  4. Object Number: 1878488  Size: SH
  5. Slide the shift control cable adjustment lock cover (1) back exposing the adjustment lock.

  6. Object Number: 1878489  Size: SH
  7. Lift the shift control cable adjustment lock (1).
  8. The shift control cable (2) and cable end (3) are free to slide to proper adjustment. Ensure the shift lever and transmission are both in the NEUTRAL position.
  9. Depress the shift control cable adjustment lock (1) to lock the cable adjustment.

  10. Object Number: 1878488  Size: SH
  11. Slide the shift control cable adjustment lock cover (1) over the adjustment lock.

  12. Object Number: 1878487  Size: SH
  13. Ensure the shift control cable adjustment lock cover (1) is securely latched on the adjustment lock.
  14. Inspect the operation of the starting system with the shift lever in each position. The engine should only crank when the lever is in the PARK or NEUTRAL position.