Im not sure how you get them out, a lot of times they tell you in the owners manual...
The 92-97 cadillac seville's have this LED panel...
http://www.logandiagnostic.com/ rebuilds these, and Id assume theyre about the same.... You cant just replace the little LED bulbs... or at least there isnt a part number for them..... The whole assembly will have to be replaced and they are NOT cheap..... At least from the factory...
See if logan diagnostic will build you one... Send them an email, and tell them you know Wes from caddy forums.....