Started out with brake lights wouldn't turn off. Had to recharge battery. Needed to clean turminals (used baking soada and water). Accidently crossed battery cables now jeep wont start. Checked fuses didn't find any blown.
Check fuses with a test light. There is a large main fuse that should have blown killing the whole car of power. After replacing that, re check all fuses with test light to verify power. Keep your fingers crossed that no other modules burned out from crossing the cables.