heater climat controll and dash lights just stopped working

Usually indicates a communications malfunction between the body control module, fuel data center, and the climate control panel. Do you have a digital instrument cluster, and is it still displaying speed info?

its either one of the 2 heads or the bcm.remove the l and r info panels,but leave them pluged in.unplug the fuel center does the a/c panel lite?if no plug it back in and unplug the a/c panel does the fuel panel lite up?if still nothing you will have to replace the bcm.