I too have a 2000 LS. Is it your odometer lights (digital display) at the bottom of the cluster. Or just a bulb(s). In any event you have to remove
the black dashboard bezel that runs across your dash. Open both front left/right doors, remove the side panels, you'll see a small screw on either side. I start from the left working towards right, carefully pulling as it is clipped on. Once you get the dash bezel removed, you will have access to the IP cluster. Simply unscrew 4 screws and carefully pull the IP cluster forward. Once you have the cluster out you can easily check the bulbs behind the unit to see which ones are burnt out. They are 194 bulbs. If the problem is the digital odometer thats dim or out (like mine). You will have to send it out to get it repaired. I was refered to Southern Electronics, by a senior member of this board. Hope this helps. Good luck.