Why No Light When Locked Car

When you lock your car, you’re probably assuming that the key will keep anyone else from accessing it. But what if you’re wrong? In this article, we’ll explore the reasons why cars sometimes don’t turn on when you think they should and how to prevent this from happening.

What causes a car to refuse to start when the key is turned?

When you try to start a car that won’t turn over, chances are good that you’re dealing with a dead battery. The most common cause of a car refusing to start is a dead battery. When you try to turn the key in the ignition, the car doesn’t receive power from the battery, and thus it won’t start. Other causes of a car refusing to start can include a broken key switch or ignition coil, but the most common is a dead battery.

How can you troubleshoot the issue?

The most common reason why a car will not turn on when the key is inserted is a dead battery. To troubleshoot this issue, first check to see if there is a light on the dash indicating that the car is getting power. If there isn’t a light, then the battery may be dead. Try turning the car off and then back on again. If the problem continues after trying these methods, then it may be necessary to replace the battery.

What are the possible solutions?

There are several possible solutions to the issue of a car not being able to be started when the key is inserted. The most common reason for this is a broken key switch. This can be fixed by replacing the key switch, but other potential solutions include:
-Checking for power to the car’s battery – If there is no power to the car’s battery, then the car may be in park and unable to be started. To check for power, you can try turning off all of the car’s electrical accessories, then trying to start the car. If it still doesn’t start, then the problem may be with the battery itself.
-Checking for cold weather problems – In cold weather, car batteries can become frozen. If this is the case, the battery will need to be replaced in order for the car to start.
-Checking for interference – Sometimes interference can cause cars not to start. This type of interference can come from things like cell phone towers or other electronic devices nearby. If there is any kind of interference present, it may need to be cleared before trying to start the car again.

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How do you avoid this problem in the future?

If you’re like most people, when you leave your car in a parking lot or garage, you expect it to be safe and locked. However, if your car has no light coming on when you lock the doors, you may not be aware that someone could have entered the car while you were away. In fact, according to The Huffington Post, “A study by the National Institute of Standards and Technology found that nearly one-third of all car thefts involve an unauthorized entry by a thief.”

So how do you avoid this problem in the future? One way is to always remember to turn on your car’s security light when you leave it parked. If you don’t have time to go back inside and turn on the light, consider placing a note on the dashboard indicating that the car is locked and requires a code to be opened. Another option is to install a keyless entry system for your car so that you don’t have to fumble for your keys when you want to get out. Either way, taking these simple precautions will help ensure that your car is safe when you leave it unattended.


When your car is locked, you may think that the lights are off and you’re safe. However, sometimes people will break into cars when they know the owner is out or when the car has been left in a public place. If someone breaks into your car and tries to steal something, the light will let them know there’s someone inside. Keep this in mind next time you lock your car and make sure to turn on all of the lights before getting out!

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