Now there isn't much that controls the cruise on a gm product there is the switches the brake switch the powertrain module and throttle actuator control module. Now I am going to try to post the test procedure for you cruise system you might need to right click on it save pic as and then use you window's program to magnify it and print it ok.
I hope this will work this is the test procedure to find out what is bad so that you won't guess as to what is causing you cruise problems. Let me know I do anything else ok
Thursday, November 20th, 2008 AT 4:17 PM