Automotive Key Programming


Locksmith Portland transponder keyIf you’ve recently got a key replacement, you may be wondering why it opens all of the car doors but doesn’t work when you insert it into the car ignition. The reason why is because some keys have to be programmed before they will be able to start your vehicle. These keys are known as transponder chip keys. Once a key has been cut for your vehicle by an automotive locksmith in Portland, they will be able to have it programmed for you.

Having keys which require programming is an added security measure that is meant to ensure that there is proper user verification. Or in other words, it would make it hard on someone who is looking to steal your car to be successful. Even if a person is able to get a copy of your key, without having it programmed to the vehicle, it is useless. The way these types of keys work is very simple.


To start with, the chip in the car key gives off a signal that communicates with your car’s computer. As a side note, a transponder does not require any battery power as they are energized when inserted into your vehicle’s ignition. However, you may run into transponder keys that do have batteries too. Once the car key gives off a coded signal the transceiver within the car takes note of whether it is the correct signal coming from the transponder. If there is no signal or it is incorrect, the car will not start. Again, programming the automotive key will ePortland locksmith programming auto keynable your car to start and a key without the proper programming will only open the car doors and trunk.


When an automotive locksmith performs a programming of a transponder chip, he utilizes a unique key code. This code is produced by the vehicle’s manufacturers when the car is new. This card contains a unique code which is normally concealed below a scratch strip so only the owner of the vehicle should be able to see it. Main dealers and automotive Portland locksmith companies will normally require this code so they can program your key’s transponder chip to your vehicle.

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