What is Transponder Key?


What is Transponder Key? Since the mid 90's Worldwide top manufacturers like Ford, Chrysler, Chevrolet, Honda, Nissan and Toyota started to use some type of transponder keys and most modern vehicles today come with highly advanced immobilizer and transponders (chipped keys).

Simply put, these keys accommodate a combination of audio and infrared transmitter inside of them. A computer near the ignition switch of the car contain a receiver. The transponder chip in the key delivers an extremely low-level signal to the car that can only be recognized when the exact programmed key is in the switch.

The main reason for using these keys

One of the main reasons that manufacturers utilize transponder keys today is to prevent a car from being hotwired. The car won't actually start without a device transmitting a low level signal or without a key placed into the ignition. Even if a copy keys used without the proper transponder signal the car won't start at all. If someone were to take up the ignition and try and hotwire the car the car also won't start because it's not receiving a signal from the transponder.

Why do I as a driver care about transponder keys?

In the past, replacing a car key was available at almost any hardware store, the dealer or even at Walmart, nevertheless this advantage was available not only to the owner, but to any person that got a key cutter could copy another set of key to open a random car and drive away stealing it. In today’s world, a replacement car transponder keys must be made through a licensed dealership or certified locksmith, the key must be compatible and programmed to the car and practically, copying keys became more organized and as a aftereffect also way more extravagant.

How do you know if you have a transponder key?

  1. hykokeys Click on hykokeys and search your car model, make and year and query for the results.
  2. In almost all cases, the plastic beak of the key will be wider than a key with no chip. Another test is to sheathe the plastic head of the key with a few tin foil layers and then attempt to ignite the car. If it don't ignite, there is a chip present.
  3. Another way to know that you have a transponder key is by it's price. Call your dealer with your VIN and request for a key replacement cost. If the price is a few buck, chances are strong that it is not a transponder key. If the price above $50, it is most likely that a transponder is present
Note: There are few exceptions, however they are rare.

Buy transponder keys now!

Click here to find out what type of key your vehicle adopt: transpondery

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