wiring problems?

My 93 Tahoe is malfunctioning or something....digital speedometer isn't working (maybe it's the bulb because blinkers aren't working either?) Cruise control not working, headlight reminder buzzer stays on all the time when lights are on unless I use the dimmer and dim all the way down but then I can't see it.......all of this happened all at the same time!!!!!!! Is that normal? Is there an easy fix?:banghead:

Welcome and do a google search on digital dash for your year and you will find rebuilt dashs as the circuit card in the dash frys.