I have a 2003 F150 4x4. One day my cruise control was working fine and the next it wouldn't work at all. When I push the set button the little green light in the dash blinks on then off and the cruise won't set. Has anyone had this same problem? Does any one know if there is any way that I can check to see what it might be myself or am I going to have to pay a dealer to fix it? Thanks for any info. Sorry I stuck this on the wrong years post.

 

Check the fuse box first. After that I can only suggest the dealership.

 

could be the brake switch.