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20 Fun Facts About Programing Keys
Programming Car Keys

As automobiles have become more electronic and more electronic, key programming has been an important service that can bring in a lot of revenue. But many shops don't provide this service.

Modern keys and fobs can perform more than just starting the car - they also unlock the rear hatch and secure the vehicle from physical and digital attacks. You must know how to program them.

What is a transponder?

A transponder key is a car key with an additional security measure to prevent theft integrated into it. This is achieved by incorporating an RFID microchip in the plastic head of the key. This chip is used for relaying a signal the vehicle's immobilizer during starting of the ignition. This chip stops hot-wiring process and makes it extremely difficult to steal the vehicle.

This is not to say that transponder keys are secure, because even though they provide an extra layer of security, it does not mean that criminals can no longer employ their skills to gain entry into the vehicle. It simply means that they need much more time and effort to accomplish this and that's why this security feature is a huge advantage to anyone that cares about the safety of their vehicles.

Transponder keys are easy to use. The microchip that is embedded in the head of the key is programmed with a unique digital serial number that correlates to the immobilizer system in your vehicle. When you insert the key into the ignition the immobilizer will recognize the serial number and validate it. If it matches the number, the engine will start and if not it does, the car won't start.

There are several different types of transponder chips that are able to be programmed. The kind of chip your vehicle uses will determine the type of key that you have. Search engines and professional locksmiths can help you find the appropriate transponder for your car.


In general transponder keys tend to be more expensive to replace than non-transponder keys because they come with the additional expense of the microchip. The dealership that sells your car is the most expensive alternative to replace your key because they have the highest cost of overhead. However, you can also visit locksmiths to get a new key.

You can only program the transponder if you haven't already cut it. You can do it yourself if you purchase a transponder from one of the stores that offers these services. However, you will require a specific tool to complete this task.

What is the process for programming a transponder?

Transponder keys are keys for cars equipped with chip. They are designed to prevent theft of vehicles by ensuring that only the correct key is used to start the vehicle. Locksmiths can create a new key for you if you have lost yours or the chip has been damaged in any way. In most cases the process of programming the chip key is simple and easy. However, some automobiles require specialized equipment to program the key.

To begin, you must first identify the type of key you own. To ensure that you have the correct key blank it is important to know your car's make, model and year. Some keys come with transponder chips inside the head of the key, but others don't. If your key has a chip, the bow cover (the plastic part at the top of the key) will be heavier than on a chip-free key. You can also tell if your keys have chips by looking at the ignition. If your key has a button to start instead of a hole, then it probably has a chip.

After car key programmers have a suitable blank for the key The next step is to decide the method of programming to be used. Some transponder keys can be programmed using on-board diagnostics, while others require a special key programming device. The key programming device has to be compatible with the circuit board key that is being utilized, and must operate at the same frequency as the vehicle's onboard computer.

It may be tempting to save money by programming a transponder on your own however, this could be risky. If you don't follow the proper steps you could alter the data on your chip and make it impossible for you to start your car. It is best to have your key programmed by a professional who has the tools and expertise necessary to do so. It is a good idea once you have the keys, to make additional keys to replace them quickly and easily if you lose one.

How do I program my transponder key?

If your vehicle is equipped with a transponder key you will need to program the chip in the head of the car key to start it. This is a difficult procedure, particularly if you have lost or damaged keys. In some cases you might be able to start your car without the transponder chip however this isn't advised and could lead to trouble. In these situations you should consult an experienced locksmith or a car dealer to solve the problem.

To program a transponder key you must have the right tools and understand the correct procedure for your vehicle. Transponder keys typically come with an antenna ring that is attached to the head that transmits radio frequency energy to a chip inside. The antenna rings receives an identification code from the chip. When the signal is received, the ignition system will recognize that the key was placed in the ignition and turn it on.

If you have the proper equipment and know the procedure for your vehicle, you can do it at home. Most manufacturers have their own methods of programming that might require specific supplies. Be aware that the programming process will require a high battery power duration. If your battery dies during the process, you will be required to start the process again from the beginning.

The majority of people hire an expert to complete this. A transponder key that is programmed correctly will not only make sure that your vehicle is safe to operate, but will also save you time and money.

Follow the steps below to program a new key that will work with an existing one. You will need a programer compatible with the car model you have. Follow the instructions on the device for the best results. Keep in mind that some car models have special technology that requires a dealer to create an entirely new key, however this is not the case for most vehicles. The process should be straightforward and quick if you own the correct key and the required equipment.