Your Acura TLX doesn’t start anymore and you know it’s because of your immobilizer but you don’t know exactly how it works or how to find it? We will try to provide you with an answer in this article.
First, we will explain what this famous immobilizer is for and how it works on your Acura TLX.


Anti-start utility on your Acura TLX:

This tool is as expected used as an anti-theft protection. Indeed, it is programmed in order to start your Acura TLX exclusively if the key that has this code is inserted. We remember these movies where thieves operate a few wires under the dashboard to start the engine, which is impossible with the anti-start system.

Anti-start operation on your Acura TLX:

To put it simply, we have a transmitter and a receiver that work together to validate the operation and as a result switch on the engine. The immobilizer provides the transmitter, and will therefore issue a code request when the key is inserted in your Acura TLX. Imagine this transmitter as a doorkeeper who would ask for an entry code when someone knocked at the door.
This code request is directed to the key, which in turn, sends a unique user code, specific to the start system, and if this code matches, then the anti-start will make the engine start.
The operation is very simple. However, when mentionning double safety, we also suggest potentially more possibilities of breakdowns or various failures unfortunately.
In the next paragraph, you will find the various breakdowns you could deal with on your Acura TLX.

Immobilizer failures:

There may be various factors that prevent your Acura TLX 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 identify if you have a duplicate key. If, with the two keys of your Acura TLX, you have the same difficulty, then it is the anti-start that is flawed and therefore must be replaced or disabled. Doing so 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 difficulty comes from the receiver, the key, which transponder has been damaged. This can be replaced for less money by a professional than the anti-start system.

If you speak to your mechanic, he will obviously offer to tow your Acura TLX and charge a high price for everything, he will not give you the code easily. For security reasons alone, it is legally impossible to send out the code to you. You must send your car.


  • – First try to determine where the failure on your Acura TLX came from. Then act accordingly. It would be a pity 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.

To discover more tips on the Acura TLX, take a look at the Acura TLX category.