cruise control problem

any help/info greatly appreciated.....I have 2002 Chevrolet Silverado Z71....the battery went bad so I replaced the battery with new battery......cruise control worked fine before I replaced the dead battery... now the cruise control works sometimes ..... for the most part will hardly ever work....... I disconnected the battery cables to reset computer so I was told to do that..... and still have my problem.....no cruise control........

Thanks for any info.

Are there any other issues like the speedometer not working or the brake lights intermittant?

everything else works fine no brake light problems.....no instrument panel problems.....everything works great except the cruise control....