[grfnkl]

Check your fuses first for the exterior lights. I would also turn on the lights manually and check to see what working and what's not working. For your dome light check the door plungers and make sure that they are fine and not stuck or broken. Also check to make sure the switch on the roof isn't in the "ON" position instead of the "Door or auto" position. Hope this helps some.

edit: I just re-read everything. Check to see if you brake lights themselves are working. You should have 2 lights in each lamp and 3 in the center trunk lid. The light housings are notorious for leaks in the seals causing water to get in and having them short out causing them to stop working. For the dash light is it the SERVICE ENGINE SOON OR THE SERVICE VEHICLE SOON?? Both these lights mean different things.