GM Service Manual Online
For 1990-2009 cars only
  1. Lift the lever boot up from the center console, carefully with a suitable tool.
  2. Ensure the transmission is in the PARK position.

  3. Object Number: 2018990  Size: SH
  4. Release the shift control cable adjustment lock cover (1)
  5. The shift control cable and cable end are free to slide to proper adjustment.
  6. Ensure the shift lever are in the PARK position.
  7. Depress the shift control cable adjustment lock (1) to lock the adjustment.
  8. 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.