JRH 3:16 - Like CuriousC said, do you mean you have the smoker's package, or is the cigarette lighter outlet not working?
Couple of possible solutions.
1) Check the fuse for the power ports - Should be listed in your manual which fuse it is.
2) If you are using something that plugs and pulls the power from the port, most of the plugs can be unscrewed and have a small tube fuse in the plug, maybe check if it is blown.
3) Have you tried plugging in other items that use the same style of power plug do they work?