2000 Silverado Insturment panel problem

The insturment panel indicators on my silverado are acting weird. When i went to get in it the other day ALL the indicators on the dash (ABS light,Cruise light, High Beam, Ect.) were on with the key not even in. When i turned the key they all went out except for the cruise and the high beam light which stay on all the time when driving around town. Shut the engine off and they will remain on for about ten seconds then go off. Also, when drining around other lights will come on and stay on (tow/haul, 4wd, ect) sometimes it is lit up like a christmas tree!! The truck runs great and this is the first problem i have EVER had with this truck. any ideas would be of help!! Thanks!!!

I've seen this problem at least twice, you have a problem in the cluster, only way to fix is to get a new cluster. I hope this helps