Ten Apps To Help Control Your Car Keys Programming What is Car Keys Programming?

Modern cars have a computer chip in the key fob for communication with the vehicle. The key and the computer have to be programmed to understand each other (think Tinder) and this is known as car keys programming.

It can be completed by a locksmith, or a dealership, depending on the vehicle manufacturer. The procedure is a bit different, but always straightforward.

What is key in reprogramming?

When your car keys stop functioning due to an unrepaired or damaged key fob, it's best to get them reprogrammed by an expert. This is because the process could be risky and complicated in the event that it's not done properly. There are various steps to consider depending on the vehicle. Many people choose to hire an auto locksmith to carry out this task instead of trying to do it themselves.

The process of reprogramming most vehicles is relatively simple. The expert will first evaluate the make and model to determine the blank key fobs, tools and other components required. The professional will then program the new chip, or clone it using specialist equipment. Then they will test the key to ensure it's working properly.

Certain vehicles require a sophisticated programmer which only a handful of auto experts have access to. This can be a costly option that takes a lot of time and education to master. However, if you have an experienced and trusted auto locksmith with the right equipment, they can finish this process quickly and efficiently for you.

In addition, some vehicles also have specific EEPROM programming procedures that require to be handled by an expert. These can take several hours to perform and are more difficult to follow. These techniques can also be dangerous and potentially cause damage to the circuit board of your car's anti-theft device.

You'll need a guidebook for your vehicle if you want to re-program your keys. Certain guides work for all models, but they may not work with all models. The majority of these guides recommend against DIY methods as they can cause the data stored in the security module of your vehicle becoming corrupted.

In some instances manufacturers will not let their dealers change the programming of keys. They will require a secure connection to the factory computer which stores this data. This will prevent anyone from accessing your vehicle if someone were to get the original key.

How do I program a key?

Car key reprogramming is an operation that takes place when a new chip is inserted into the key and programmed to ensure that it matches the current settings of your car. You could order an alternative from your vehicle manufacturer, but it could take an extended time. In the meantime you won't be able move around with ease. This is where car locksmiths come in!

Depending on the car you drive, you might be able to change the programming of your own key with software that you can purchase online. However these programs don't work with every make or model and may be difficult to use. In general, it is best to have an expert handle this for you as they have the right tools and know how to program your key correctly.

To do this, you will need keys that are blank and compatible with the vehicle's model and make. You can purchase keys online for a discount price, but ensure that they are blank. You can also go to a locksmith, but they will charge more as they need to purchase their own software and tools to program your car keys.

These sophisticated key programming devices for cars are expensive and accessible only to professionals with the right license. In addition, these vehicles typically have a 'token' system that only allows one attempt at programming to be made per day or hour. If you repeatedly program the key and repeatedly, the code inside the car could become corrupted.

It is recommended to let an experienced auto-locksmith reprogramme your keys. They will have an understanding of the software and security systems involved, which will significantly reduce the risk of any corruptions or errors occurring. Furthermore, they will be equipped with the most recent software and tools to accomplish this, which is much safer and more efficient.

What are the requirements to program the key?

Modern vehicles require keys with special chips that communicate with the system of the vehicle. The chips have to be programmed to work with your specific car -- making it impossible to use any key fob that is compatible with your car, even if it is duplicate. This makes car theft harder, but it also means you can't replace your broken key with a new fob and expect it to work. This is why most people will need to contact an auto locksmith in order to program the new car key although it is possible to do so yourself in certain situations.

You will need two car keys that work. Once you have them, you can sit in the drivers' seat and open the ignition. Insert your new key in the ignition and turn to turn on your car. This will link the new key with your system which makes it a practical replacement for the key you lost. This procedure can differ depending on the manufacturer. Check the instructions that came with your key, or go online for your specific model/year/make to determine the exact steps.

If you're looking to save money on key programming expenses, think about buying a new key shell instead of a new head. The shell is just the plastic piece with the key blade, so you can typically purchase the shell at a lower price from auto parts or hardware stores. However, you'll need to transfer the internals from the old key head (the circuit board and chip) into the new shell prior to it being programmed.

A professional can help you save time by doing this for you, but be aware that it will cost more than the regular spare key. Professionals will require an advanced computer program that can cost thousands of dollars to connect to your computer in your car. You may be able to purchase a less expensive version on the internet however, this will not likely work with your vehicle.

The process of reprogramming keys can be a bit complicated and certain cars are more difficult to programme than others. Certain models can be programmed onboard by using an OBD2 Reader, while other models require a specific tool known as an EEPROM Reader. reprogramming a car key of these tools are only sold through dealers and are costly. It is best to leave this work to experts.

How long before the key is programmed?

It depends on what type of car you have and whether it has any special anti-theft features. Many cars come with security features that prevent the key from working if it's not programmed to the vehicle. This is done in order to stop theft and requires an expert locksmith be employed for each model. The key must be able to communicate with the onboard computer to unlock the doors and begin the engine. A professional auto locksmith will be able to solve this problem quickly.

Even for professionals with experience, some models of cars can be difficult even to program. The process can take several hours or even days for these models. This is because the process requires EEPROM programming procedures that a majority of locksmiths don't have access to.

Other features of cars could also require programming in order to function properly. It could be a remote starter, an automatic transmission or power windows. A professional auto locksmith will help you if keys are lost or broken.

Before determining which tools are required, the majority of professionals will need the make and model number of the vehicle. They will also require a blank key compatible with their vehicle. Once they have both these items they can program the transponder chip or key fob and clone a key, if required. Once all the work has been completed and the key is tested, they can test the key to confirm it's functional.

The dashboard security light will remain on until the key is properly programmed. This is to alert the owner that the key isn't functioning correctly and should be reprogrammed by an expert.


It is crucial to have an extra in case yours is damaged or lost. If you do have damaged or broken keys or a fob that needs to be programmed, it can be costly and time-consuming. A professional auto locksmith can do the job faster and at a lower price.