When your car won’t start, it’s easy to assume the battery is dead—but that’s not always the case. In this guide to dead battery vs bad starter symptoms, we explain the key differences, common warning signs of each, and how to tell which problem you’re facing before scheduling repairs.

Car won’t start diagnosis doesn’t have to be overwhelming. Learn the most common reasons your vehicle won’t start, how to spot warning signs, and when it’s time to call a professional mechanic.