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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
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
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,...
Question
My car does not have an immobilizer installed on it, but it is keeping my 2007 Honda CRV from starting.
Hi there. If your vehicle is not equipped with the immobilizer system, but yet it is causing your vehicle not to start, then there is a problem with the engine control module. Most of the time the module can be...
Question
My car won't start and it say immobilizer in my 2007 Volvo S40
You either have an issue with the immobilizer system or a problem with the battery. If the battery is low then there will not be enough voltage available in the car to deactivate the immobilizer system and start the vehicle....
Question
Horn keeping blowing when key is taken out ignition.
The issue is with the security system on your car. Try disarming the vehicle by holding down on the unlock function to the key fob. If the locks on the car do not work while the horn is sounding, then...
Question
Ran gas out now won't start
Be sure the battery is fully charged. If you suspect low engine oil, the oil level should be checked on the oil dipstick. Of course, confirm that the engine immobilizer system (security system) is not activated thus preventing the car...
Question
I have a 98 Chevy Silverado truck 5.7 liter that also has an alarm. Lately, at times, my truck won't start.
Hi there. The could be an issue with the immobilizer system in your vehicle setting the security off causing the engine to not start or not have any power to the ignition switch. If the immobilizer is working properly, then...
Question
Car immobilizer issue or faulty ignition switch?
If the vehicle is getting power and the light are coming on the dash, then the immobilizer has the ignition system disabled. Check the fuel cut off switch (vehicle safety switch) and see if it has been tripped. If the...
Question
Disable or bypass factory security system
To temporarily override the system, see these instructions. A permanent bypass requires re-engineering the system because engine immobilizers these days rely on multiple electronic modules and chips, the very removal or modification of any one of which, or reconfiguration, will...
Question
question
The security system warning light should not illuminate once the vehicle is started and you are driving. If the light does illuminate, that means there is a malfunction in the security system. Obviously, if this problem started immediately after you...
Question
Battery ?
On some car alarm systems, if battery voltage drops below a threshold, the alarm goes off. In your circumstance, you should have the battery load tested to rule the battery in or out as a possible cause. The security system...
Question
My car won't crank or turn over to try to start. Maybe the Infiniti immobilizer security system.
To see if the Immobilizer System is not working properly or is active, check the security light on your vehicle. If the light is flashing fast, then the system is active. You can reset the system by removing the battery...

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