When a Car Won’t Start, begin by checking the battery, dashboard lights, electrical connections, and fuel level. A clicking sound or slow engine crank can point to a weak battery, while no electrical response may indicate a battery or connection issue. Inspect the battery terminals for corrosion or looseness and consider the vehicle’s recent starting history. If basic checks do not identify the cause, professional diagnosis can help determine whether the problem involves the battery, starter, alternator, or another component.