If you’ve recently purchased a new car, you have probably found yourself wondering whether the anti-theft light is supposed to stay on or not. You’re not alone. Many car owners are wondering the same thing.
That’s why we want to answer the frequently asked question, Is the anti-theft light supposed to stay on?
Is The Anti-Theft Light Supposed To Stay On?
On your particular vehicle, the security light staying on as the vehicle is running is an indication that the security system has failed and is disabled. It is common for a security light to come on after the battery dies because the computer may lose its programming to the key.
What Does It Mean When The Anti-Theft Light Stays On?
The anti-theft light is equipped to prevent your car from being stolen and when it stays on, it indicates a problem with the system. However, the light can come on for reasons other than theft prevention. It is a good idea to have this checked out by a professional as soon as possible.
One reason why the anti-theft light stays on is that the key used to start your car is not recognized by your car’s computer. It could be that the key is too worn to be read by the receiver or that there is a fault in the receiver itself. This may be accompanied by an engine light or a malfunction indicator lamp (MIL).
Another reason why the anti-theft light stays on is that your car’s battery may be dying. This can be caused by faulty alternator diodes, loose connections or corrosion of terminals. This may be accompanied by an engine light or a malfunction indicator lamp (MIL).
Does The Anti-Theft Light Drain Battery?
The anti-theft light is supposed to blink at a very slow rate when the ignition is off. The purpose of the blinking light is to let people know that the anti-theft system is working. This blinking light, which is controlled by the body control module (BCM), uses a tiny amount of power.
Since the anti-theft light blinks slowly while you’re away from your vehicle, it won’t drain your battery. If it’s blinking rapidly or constantly, it’s probably due to an issue with the anti-theft system, and in that case, it will drain your battery.
If you notice that your car won’t start and you find that your anti-theft light is on and blinking rapidly, try locking and unlocking your doors with your key or key fob several times. If this doesn’t turn off the anti-theft light, we recommend contacting a professional mechanic as there could be something wrong with your vehicle’s electrical system.
What Does It Mean If The Anti-Theft Light Is On In The Dash?
The anti-theft light is in the dash, it comes on for three seconds as soon as you turn the key to the on position and then goes out. If it stays on or flashes, it means that there is a problem in the anti-theft system. That problem may be a bad key, or it could be a bad Body Control Module. The BCM is supposed to communicate with the keys through the ignition switch.
The anti-theft system uses a special ignition key, engine control module (ECM), and instrument panel cluster (IPC). When someone attempts to start the vehicle without the proper key, a signal is sent from the transponder in the ignition key to the transceiver in the steering column. The engine control module receives this signal and compares it to the programmed ignition key identification code (IKIC) in memory.
If the IKIC matches, normal vehicle operation occurs. If there is no match, an alarm is activated and engine starting is prevented until a valid IKIC is detected by the ECM or after a short period of time has elapsed.
Why Is The Anti-Theft Light Not Blinking?
The blinking light, sometimes called the alarm indicator, is a feature of many car alarm system that alerts you when your alarm is armed. If the light stops blinking, or comes on and stays solid, this means your alarm has been disarmed by one of the two transmitters that came with your vehicle.
If the anti-theft light does not flash at all when you arm your system, then it may be caused by a dead battery in the key fob transmitter. Another possibility is that the key fob has gone bad.
If you can’t find your remote from inside the vehicle, try using the hidden key to open the door. If you don’t have a hidden key, call a locksmith or dealer to come and help you get into your car.
Can You Leave Anti-Theft Light On While Driving?
You can’t leave the anti-theft light on while driving. The main reason is that you won’t be able to start your car if the light is on. The anti-theft system (if your car has one) needs to be disabled before you can start your engine.
This is a security feature that prevents thieves from hotwiring or stealing your vehicle. With the anti-theft system in place, they can’t bypass security systems without disabling the anti-theft system first.
Here’s how it works: An electronic key fob sends a signal to an antenna around the ignition cylinder. The engine will not start unless it receives a coded okay signal from this key fob.
Why Won’t The Car And Lock Symbol On Dashboard Car Start?
A dashboard warning light means there’s an issue with one of your vehicle’s components. If you’re not sure what a warning light means, don’t panic! Here’s what the car and lock symbol on your car’s dashboard mean, why it come on, how urgent the problem is and what you should do when you see it.
Car and key symbol: This is the most common symbol for a car starting system fault. If this symbol appears on your dash, it’s likely that there is a problem with your car security system. The most common reason for a car starting system fault is simply a dead battery.
Is The Anti-Theft Light Supposed To Stay On – Conclusion
As a recap of the response we gave to the question, Is The Anti-Theft Light Supposed To Stay On?
On your particular vehicle the security light staying on as the vehicle is running is an indication that the security system has failed and is disabled. It is common for a security light to come on after battery dies because the computer may lose its programming to the key.
Thanks for reading.
Joe lives and breathes cars and trucks. After many years working in the Auto industry, he decided that it is only right to share his knowledge with the public. As a qualified expert in trucks and cars, he started working for Truckile.com and is the main editor and publisher.