This happens when the car sits in in the hot sun for hours (while I'm at work). The battery is fine. The door locks function, the radio is working, the A/C blowing, even check the warnings. There is no sound, not clicking, no firing, no cranking, just nothing when I turn the key to ignition. Sometimes after driving then having the car sit (like at the grocery store) it takes 2 or three tries to get it to start. But, this only happens when it's hot, and it's hot in Nevada but not so hot it melts my car...