Your Chevrolet Silverado doesn’t start anymore and you know it’s because of your immobilizer but you don’t know particularly how it works or how to find it? We will try to provide you with an answer in this article.
First, we will describe what this famous immobilizer is for and just how it works on your Chevrolet Silverado.find-anti-start-code-chevrolet-silverado

Anti-start utility on your Chevrolet Silverado:

This one is of course used as an anti-theft protection. Indeed, it is programmed to be able to start your Chevrolet Silverado only if the key containing this code is inserted. We keep in mind these movies where thieves adjust a few wires under the dashboard to start the engine, which is out of the question with the anti-start system.

Anti-start operation on your Chevrolet Silverado:

To put it simply, we have a transmitter and a receiver that function together to validate the operation and thus switch on the engine. The immobilizer provides the transmitter, and will therefore issue a code request when the key is inserted in your Chevrolet Silverado. Imagine this transmitter as a doorkeeper who would ask for an a way in code when someone knocked at the door.
This code request is directed to the key, which subsequently, sends a unique user code, specific to the start system, and assuming this code matches, then the anti-start will let the engine start.
The operation is very simple. However, when mentionning double safety, we also imply potentially more chances of breakdowns or various failures unfortunately.
In the next paragraph, you will find the various breakdowns you could experience on your Chevrolet Silverado.

Immobilizer failures:

There may be various reasons that prevent your Chevrolet Silverado from starting because of the immobilizer. First of all, stupidly, you’re not using the right key. It may seem not important but it happens!
If you have the right key, you have two options left:

  • Option n1: The transmitter is involved, so the immobilizer. Usually, it is easy to establish if you have a duplicate key. If, with the two keys of your Chevrolet Silverado, you have the same problem, then it is the anti-start that is defective and therefore must be replaced or disabled. Completing this task will cost less than replacing it, but your car will be more exposed to theft and your insurance may not cover you if your car is stolen.
  • Option n2: The problem comes from the receiver, the key, which transponder has been harmed. This can be replaced for less money by a professional than the anti-start system.

If you get in touch with your mechanic, he will obviously offer to tow your Chevrolet Silverado and charge a high price for everything, he will not give you the code quite readily. For security reasons alone, it is legally impossible to transmit the code to you. You must send your car.


  • – First try to determine where the failure on your Chevrolet Silverado came from. Then act accordingly. It would be a shame to change the entire immobilizer system when the key is defective.
  • – Make a estimate at a garage and then consider an alternative at an online professional, which will often be more efficient and less expensive.

Whenever you have any further questions about the Chevrolet Silverado, do not hesitate to consult our Chevrolet Silverado category.