have a 2004 caviler, slammed on my breaks because a women decided to cross the road in front of me last minute. car turned off. all the lights were still on. when i went to turn the car back on, the car shutters really badly and the oil and the battery light came on. checked my oil and its fine. thinking that slamming on the breaks made my battery mess up somehow. not too sure. never had this problem before. nor have i ever heard of that happening. i did try putting my key to the on position, then putting it in neutral, then back to park, then tried turning it back on. it worked for a minute then started to shutter again. hoping that someone here can help me out