GMC Repair: headlights not working, high beams, hdlp

Question
I have a 01 gmc 2500hd.  I turned on the headlights last night and no low or high beams.  I replace the 2 relays hdlp and dlp still nothing.  The high beam light in the dash stays on but only the side lights and turn signals work up front.  any Ideas

Answer
i know this sounds dumb but sid you check the fuses after replacing those. My next question had it been in a accident recently, If it was check grounds. The next thing it could be is in the steering column the rod may be bentfor the high beam switch. Check those first Ok.