GM Service Manual Online
For 1990-2009 cars only
  1. Disconnect the cruise control cable at the cruise control module and the throttle lever.
  2. Ensure the cruise control cable moves in and out of the cruise control cable casing freely and smoothly.
  3. Replace any sticking or binding cruise control cables.
  4. Replace any cruise control cable adjuster lock that does not hold under normal operating conditions. Refer to Cruise Control Cable Replacement .