I have a 2007 Cobalt. I just replaced the master and slave cylinder and after getting it back together the light came on. Had to get a jump start and was told battery was bad. Replaced battery and light came back on. Had to get another jump when the battery was drained and was told it's the alternator. Got a new alternator but light is still on? Have no idea what to do. I don't want to be driving and the battery drains again and I have to call AAA again. What could it be? Please help?