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Immobilizer System

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What Do the Immobilizer Warning Lights Mean?
The immobilizer warning light turns on if your anti-theft system does not recognize the car key being used, if it's the wrong key or low on battery.

Related questions

How does the immobilizer system work?
The immobilizer system is a standard feature on all Civics, and it provides important safety and theft protection for your vehicle. Here’s how it works: The system ensures that the car will not start unless a programmed master key...
How does the SecuriLock® system work?
Your car is equipped with a Vehicle Immobilizer system called SecuriLock®. It’s designed to prevent your car from being started with anything other than one of the keys programmed for the ignition and computer. Of course, there are a few...
How does the immobilizer work?
There is an optional security feature that recognizes your specific key. This means that is the ignition is turned to the ON or ACC position and the correct key is not present, the vehicle will not start. This prevents the...
What is the immobilizer system?
The immobilizer system is an antitheft device. It’s designed to prevent any key but one programmed for your car to start the ignition. If a key that isn’t programmed correctly (or that has lost its programming because of a dead...
What should I know about the immobilizer system?
Your car is equipped with both an alarm and an anti-theft system called an immobilizer. While the alarm will sound and the lights will flash, it’s the immobilizer that actually prevents a thief from stealing the car. Your keys include...
Suspect immobilizer is keeping car from starting.
I would ask for help from a mechanic to perform some diagnostics on your car to see what is causing your car not to start. They will be able to determine if there is an immobilizer that is causing your...
What does the Immobilizer System indicator mean on the dash?
If you see a green key-shaped light on your dash, that’s the Immobilizer System indicator. It should come on at several points during vehicle operation and it doesn’t necessarily mean that there is anything wrong at all. Here’s what you...
Antitheft system not allowing car to turn over
We must determine whether the fault concerns the vehicle or the lock and key set you carry personally. The vehicle system can have a faulty sensor or module causing your concern or a broken/weak transmitter in the key itself. Have...
Immobilizer keeping car from starting.
Your car may need the service harness and relay installed into the wiring of your ignition switch; the tech bulletin is RJT 1678, to get the parts list and directions. This part is a fix to a few different problems...
changed the negative terminal on the car. Tried to start car but now it wont turn over .
You may have to disconnect the batteries negative terminal. Turn on the ignition key and leave it on and connect the battery. Try and start the car and it should start. Before shutting the car off, hold the button in...
Red light showing a car with a lock is on?
Hi, thanks for writing in. I'd be happy to help. This is your car immobilizer light that indicates the car is armed. The immobilizer, usually called Securi-Lock in Ford vehicles, is a passive anti-theft device that disables your vehicle’s ability...
Car won't start and immobilized light flashes
Try using an alternate key if you have it. If it starts easily with another key, then the first key is faulty and has to be replaced. If it behaves the same with any key, then it is possible it...
Green key imoblizer blinking and car won't start until it stop blinking
You may have to get the system reprogrammed. I have seen cases where the battery goes below a certain voltage, or a voltage surge happens, causing the system to lose its programming. You will need to have the dealer reprogram...

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