If your car is not starting, there are several steps you can take to diagnose and potentially resolve the issue. Here’s a list of things you can try:

1. Check the battery: Ensure that the battery is properly connected and has enough charge. Look for any signs of corrosion or loose connections on the battery terminals. If the battery is weak or dead, jump-starting the car might be necessary.

2. Verify the fuel level: Make sure your car has enough fuel in the tank. It may sound obvious, but sometimes a car won’t start simply because it’s out of fuel.

3. Check the ignition switch: Try turning the key to the “On” position and check if the dashboard lights and electronics are functioning. If they’re not, the problem may lie with the ignition switch or an electrical issue.

4. Listen for clicking sounds: If you hear a rapid clicking noise when you turn the key, it could indicate a weak or discharged battery. In this case, jump-starting the car or replacing the battery might be necessary.

5. Test the starter motor: If you hear a single click or a grinding noise when turning the key, it may indicate a faulty starter motor. In this case, you might need to have the starter motor repaired or replaced.

6. Check the fuel system: If you suspect a fuel-related problem, try turning the key to the “On” position without starting the engine. Listen for a brief humming sound, which indicates that the fuel pump is working. If you don’t hear anything, there might be an issue with the fuel pump or fuel delivery system.

7. Examine the spark plugs: Worn or faulty spark plugs can prevent your car from starting. If you have the necessary tools and knowledge, you can inspect the spark plugs for signs of damage or wear. Replace them if necessary.

8. Consult the owner’s manual: Your car’s owner’s manual can provide specific troubleshooting steps and guidance tailored to your vehicle’s make and model. It’s a valuable resource for understanding your car’s systems and diagnosing problems.

If you’re unable to identify or resolve the issue on your own, it’s recommended to contact a professional mechanic or a roadside assistance service to help diagnose and fix the problem.