<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
Why won't my car start?
<|assistant|>
The most common causes for why a car won't start are: a dead battery, an alternator that's not working properly, corroded electrical connections, a security system that's activated, or a defective starter or spark plug. A qualified mechanic should inspect your car to determine what’s causing the issue.