What To Do When Vehicle Won’t Start & Headlights Are Flashing

When it comes to car trouble, few things can cause more stress than your car failing to start and your headlights flashing. Not only is it a major inconvenience to get your vehicle back up and running, but it can also be a safety hazard if you encounter this issue while driving. Knowing what to do when your car won’t start and your headlights are flashing can help to ease some of the worries and get you back on the road as soon as possible.

In this article, we will provide key tips and advice on what to do if you ever encounter this issue with your car. From checking your battery to seeing if a fuse has blown, we will cover all the necessary steps to take to get your car back up and running. 

What does it mean when headlights are blinking?

When your car won’t start and your headlights are blinking, it typically means that your car’s battery is dead. This could be due to a few different issues, such as a faulty alternator, a bad battery, or even just corroded battery terminals.

If your headlights are flashing, it’s best to get the vehicle checked out by a professional mechanic as soon as possible. Depending on the severity of the issue, it may be a relatively simple fix, such as replacing the battery, or it could be a more complex issue that requires more extensive repairs. Either way, it’s important to have the issue addressed quickly to ensure your car is running safely and efficiently. 

Causes of vehicle not starting and headlights flashing

When your vehicle won’t start and your headlights are flashing, there can be a few different causes. The most likely cause is a problem with your battery, as this can cause the starter motor to fail and the lights to flash. It is also possible that your alternator is failing, as this can cause a decrease in power and the headlights to flash. Also, there could be a problem with the wiring, as a loose connection or bad ground can cause both the engine to not start and the headlights to flash. 

Troubleshooting tips for vehicles not starting & headlights flashing 

If your car won’t start and your headlights are flashing, there are several troubleshooting tips you can try. Here are the major ones:

  • First, check that your battery is functioning properly. 
  • If your car has a 12-volt battery, make sure it’s charged and the cable connections are secure. 
  • If your car has a 6-volt battery, make sure the lights are off and the power switch is in the correct position. 
  • You can also check your fuses, as a blown fuse can cause electrical problems. If your car still won’t start and your headlights are flashing, use a diagnostic tool to check for any error codes that may be causing the problem.
  • Finally, if necessary, have a professional mechanic take a look at your vehicle.

vehicle Headlights Flashing

How to fix a vehicle when it won’t start and the headlights are flashing 

Chances are, it’s not a major issue and can be fixed fairly easily. Here’s what to do when your car won’t start and the headlights are flashing: 

1. Check the battery

Make sure the battery terminals are clean and the battery is securely connected. If the battery is more than three years old, it’s probably time for a replacement.

2. Check the starter  

If the starter is the issue, it may need to be replaced, do this as soon as you notice it’s the cause of the problem.

3. Check the alternator

The alternator is responsible for charging your battery, so if it’s not working correctly, it could be the reason your car won’t start.

4. Check the wiring:  

Faulty wiring can cause the lights to flash and the car not to start. Have a mechanic take a look at the wiring in your vehicle and make any necessary repairs

5. Check the battery connections and terminals for any corrosion:

If the battery is old and needs to be replaced, it’s a good idea to do it as soon as possible. If the battery is okay, you should check the alternator and other electrical components in the vehicle. 


It can be a stressful and scary experience when your vehicle won’t start and the headlights are flashing. But, by taking the time to assess the situation and troubleshoot the main issues, you can narrow it down to the likely cause. Knowing what to do in this situation can save you time, money, and a lot of frustration. With a few simple steps, you can get back on the road in no time. 


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