So I owned this car for a few months and then I sister bought it off me 2 months ago. Well yesterday she drove about 15 minutes from my house back to her apartment with no problems. About a half hour later she decided to go to the store. However when she went to go start the car nothing happened. She says that all she notices when she turns the keys is that the brake light comes on and the headlights shut off no noises. The interior lights do not dim. What could the problem be?