Q: What should I know about the immobilizer system?

asked by on December 14, 2015

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 computer chips programmed to work with the ignition and computer in your car. If an un-programmed key is put in the ignition, the car will not crank.

You can tell if the immobilizer system is working based on the presence of an indicator light in the dash. After you remove the key (for non-smart key systems), the light should flash periodically to tell you that the system is on and active (it automatically turns on).

For smart key systems, the indicator light will flash periodically after you turn the stop/start switch to off.

In both types of systems, the light should go out when you insert your key or turn the switch to on with the electronic key in the car.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

How do I use the steering wheel audio controls?

While you can use the buttons and knobs on the radio itself to change the station, cycle through tracks, adjust the volume and more, doing so while you’re driving can be very distracting, which is never a good thing. You...

How do I use the console box in a 2012 Toyota RAV4?

Your car’s console box (or center console if you prefer) is designed to provide you with additional storage space. It also acts as an armrest for the driver and front passenger. There are actually two storage areas here – this...

How do I install the top tether for a forward-facing car seat?

If your child’s forward facing car seat has a top tether, it can offer additional security and safety. Installing it is pretty simple, too. Here’s how: Make sure the car seat is correctly positioned in the seat. Raise and...

Related articles

2012 Ford Fusion vs. 2012 Toyota Camry: Which Should I Buy?
While most people believe that domestic sedans just cannot compete with the Honda Accord and the Toyota Camry, the industry leaders, that is not necessarily true. Yes, there are some metrics where the Camry just excels, however the Ford Fusion...
The Best Used Cars to Buy If You're a Teacher
If If you are a teacher, probably foremost on your mind is getting to school on time. You would also probably like a used car that is easy on gas and not terribly expensive, and will hold your gym gear...
A Buyer’s Guide to the 2012 Porsche Panamera Hybrid
Porsche Porsche is known for its prestige, power and performance, and its hybrid introduction to the Panamera line does not disappoint. While its hatchback design may put some off, the interior is nothing short of spectacular with well-appointed materials that...