Why does my theft light came on

These systems are constantly evolving. Essentially, they work via an electrical circuit disconnecting to prevent power from flowing so your car won't start or will die immediately. An anti-theft system may also integrate a car alarm or it might just be an engine immobilizer. It's possible that the anti-theft system in your car won't function correctly at some point.

This may be for many reasons including a dead car battery that loses its key memory or a dead battery in your remote. It could also be that your immobilizer chip is damaged in your key or the car door lock is damaged. If your car's anti-theft system isn't working correctly, you'll need to find a way to shut the system off so your car will return to normal operation. Step 1: Check your key fob battery. A car's anti-theft system may activate if your key fob battery is dead and hasn't disabled the system.

Make sure the battery is installed correctly in your key fob. If the battery is correctly installed, replace it with a fresh battery and try again. Step 2: Check your door lock cylinder. If your car has been damaged in an attempt to steal it or break into it, the anti-theft system may have been engaged. Check for damage to the lock cylinder itself or under the door handle where would-be thieves may have punched through with a screwdriver.

If the lock is damaged, try using the passenger side cylinder if your car has one. Step 3: Check that you are using the proper key to start your car.

Many cars have a "valet" key or a door key that only performs certain functions such as unlocking the doors. The key you are using may not have the chip required to start your car. If the anti-theft system has locked up your engine, you won't be able to start it. You'll have to disable it with these steps. Step 1: Check for the anti-theft light. It's located on your dash and will have a blue or red light.

Step 2: Turn the ignition to the "on" position. Insert the key into the ignition and turn it to the on position, which activates your accessories but not the engine. Step 3: Check the anti-theft light again. If it's no longer blinking, turn the key back to the Off position and allow it to set for a minute or two.

Step 1: Insert your key in the lock on the door. Use the driver's side door and the physical key even if your vehicle is equipped with a keyless entry system. Step 2: Turn the key. How to disengage anti-theft system? These tricks will help:. The first thing you should take a look into when the anti theft system car wont start is the car battery. It could be dead or low and needs charging. Check the battery connections. If they turn out alright, try to jumpstart it.

It is likely to solve the problem. Insert the key in the ignition slot and turn it to the right only slightly. Keep it in that position for 10 minutes or a little more.

It is likely to turn off the light and start the car. Remember that this is the state where the vehicle is on but the engine is off. All the necessary components like the radio and dashboard lights will be powered up, which makes it possible to bypass the theft alarm. This trick works sometimes and helps going past the factory alarm. It works mostly in models of Volkswagen, Mercedes-Benz , and BMW and is applicable even when the key fob is damaged or has a dead battery. In case if you are driving a Honda Accord , the trick needs a bit of modification.

Then, turn it again to the unlock position and the alarm is likely to be disabled now. Run the car for at least 10 minutes after cranking the engine to allow the car to reset the alarm. It is another way to solve the problem of anti theft system car wont start.

Disconnect the positive terminal of the battery for a minute or two. Reconnect it and make sure that both the anode and cathode terminals are tightly attached. It will reset the computer system and your car is likely to kick off.

Check your car this way; use the remote keyfob to LOCK the car and observe the speedo or tach for the security indicator to start flashing or turn on. Begin typing your search term above and press enter to search.

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