KenWPG

When I unlock my 1988 Buick Reatta the instrument panel cluster runs its test. During that test the lights on the buttons and shift light up, but when I turn the lights on the button lights do not go on. The dimmer switch on the light switch does not work. I thought replacing the light switch cluster would solve the problem, but it did not. Anyone know what I can do to have them power on when I turn my lights on?