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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

Question
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...
Question
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...
Question
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...
Question
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...
Question
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...
Question
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...
Question
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...
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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...
Question
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...
Question
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...
Question
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...
Question
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...
Question
1999 Volvo won't start due to immobilizer despite recent replacement
P1081 can appear when there is an issue with the immobilizer or the systems it communicates with. If the immobilizer has been replaced, then it may need to be reprogrammed or matched with the key so that they can communicate...
Question
Check Engine light coming on
The P0440 code is for a malfunction in the evaporative emissions system. This is a control system malfunction code so there may be a component the vehicle computer is trying to activate that is not functioning properly or there may...
Question
Tried to reset key fob didn't work now immobiliser activated.
The Immobilizer System indicator light comes on for a few seconds, then it goes out when you turn the ignition switch to the 'ON' position. The Immobilizer System light will blink if it cannot recognize the key coding. Try reprogramming...
Question
My 2001 Aurora won't start or turn over at all. All lights headlights come on so it can't be a dead battery. What is it?
The engine immobilizer (security) system is probably active, possibly due to a defective chip key. Once the immobilizer system is "on" you won't be able to start the car. A reported temporary fix is to insert the ignition key and...
Question
Already checked timing Belt, but now it don't recognize the computer immobilizer.
Hi there. Try reprogramming the key fob to your vehicle. Click here to view the procedure on reprogramming your key fob. If the key is programmed to your vehicle, then the immobilizer controller may need to be replaced. I recommend...
Question
Just replaced fuel.pump and now it wont start
If both the starter motor and fuel pump are not working be sure the Engine Immobilizer is not active. If you are sure the security system is off and yet power does not reach the fuel pump or the starter,...
Question
When cranking the engine, there are a few sparks on the ignition coil and then they cut off
That green key light flashing is the vehicle's immobilizer system. The system either does not recognize the key, or has not received the key ID, and stops the engine from starting. This is why you see some sparks, then it...
Question
Car won't start. Got a new battery. Still won't start. Lights came on once I turned ignition everything died out.
A dead alternator will not prevent the engine from starting. As long as the car battery is FULLY charged and not defective, the battery alone provides all of the power required for ignition and starting. However, a dead alternator will,...

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