What is Car Keys Programming?

Modern cars have a computer chip inside the key fob that communicates with the vehicle. This computer and the key have to be programmed to understand each other (think Tinder) and this is referred to as car key programming.

Depending on the manufacturer of the vehicle the procedure can be completed by a locksmith or the dealership. The procedure varies however, it is generally simple.

What is the most important reprogramming?

When your car keys stop working because of damage or loss of the key fob, you should to get them reprogrammed with a professional. The process isn't easy and dangerous if not handled correctly. There are a variety of different steps that have to be taken into consideration depending on your particular vehicle. Many people prefer hiring an auto locksmith to provide this service instead of attempting to do it themselves.

Reprogramming for more tips here is fairly straightforward. The professional will first assess the make and model to determine the blank key fobs, tools and other components required. They'll then program the new key or copy the chip that is already in the key by using equipment that is specialized. They will then test the key to make sure it functions properly.

automotive key programmer require a sophisticated programming system that only a few car specialists have access to. This can be an expensive option that requires many hours of training to master. If you have a trusted and seasoned auto locksmith who has the right equipment, they can complete this procedure quickly for you.

In addition, some vehicles come with special EEPROM programming procedures that need to be completed by a professional. They can take a long time to complete and are difficult to follow. These techniques can also be risky and could cause damage to the circuit board of your car's anti-theft device.

If you're looking to change the programming of your keys by yourself, you'll need to find the right guide for your specific vehicle. There are a few that work for all models however, not all. The majority of these guides warn against DIY methods because they can corrupt the data stored in your vehicle's security module.


In certain cases the manufacturer may allow their dealerships to modify your keys. They need an encrypted connection to the factory computer that stores this data. This will prevent others from accessing your vehicle if they were to gain access to your key.

How can I program a key?

The process of reprogramming a car key involves inserting a blank chip into the key and programming it to match the current settings of your vehicle. Ordering a replacement key from your car manufacturer could be an option, but this can take time - and in the meantime, you'll not have the ease of being able to get around without difficulty. Car locksmiths can help!

Depending on the model, you may be able to change the programming of your own key with software that you can purchase on the internet. However these programs do not support every model or make and can be a bit confusing to use. In general, it's best to have an expert do this for you since they have the right tools and know how to program your key correctly.

You'll require an assortment of keys that match your vehicle's model and make to accomplish this. You can purchase these online for a reduced cost, but you must to make sure they are blank before ordering them. You can also visit a locksmith, however they are more likely to cost more since they have to purchase their own software and advanced car key programming tools to complete the task for you.

These advanced car key programming machines are costly and only available to professionals with the proper license. In addition, these cars typically have a "token" system that only allows one attempt at programming to be made per day or hour. This means that if you try to program a key repeatedly and again, it is possible the code on the car will become corrupted.

It is therefore recommended to let an experienced auto locksmith complete the reprogramming of your keys for you. They will have a better understanding of the security systems, software and other factors involved. This will decrease the chance of corruption or errors. Additionally, they'll have access to the most recent tools and software for this, which makes it more secure and efficient.

What do I need to do to get a key programmed?

Modern vehicles require keys that have special chips that communicate with vehicle's systems. These chips are programmed to function only with your specific vehicle, making it impossible to use any key fob even if you have duplicate. This makes car theft harder but also means you can't replace your broken key with a new fob and expect it to work. Most people will need to get a locksmith's help to program keys for their car however, it's possible in some cases to do this yourself.

You'll need two car keys that work. Once you have them, you can sit in the drivers' seat and access your vehicle's ignition. Put the new key into the ignition, then turn it on to start your vehicle. This will connect the new key with your system, making it a functional replacement for the key you lost. This procedure can differ depending on the manufacturer, so you should review the instructions that came with your key or search for your specific year/make/model online to get the exact steps.

If you want to save money on your key programming costs, you should consider buying a new key shell instead of a new key head. You can buy the shell that is the plastic piece which holds the key blade at cheaper prices in auto or hardware stores. It is still necessary to transfer the internals (the chip and circuit board) from the previous keyhead into the new shell.

A professional can help you save time by taking care of this for you, but remember that it will cost more than an ordinary spare key. The professional will have to have a high-end programmer in order to connect to the computer in your car and the device could cost thousands of dollars. You may be able to purchase an inexpensive version online, but this option will likely not work for your vehicle.

The process of reprogramming keys can be a bit complicated and certain cars are more challenging to do than others. Some have a relatively easy procedure that can be accomplished on-board or using an OBD2 reader, while others require being programmed using a special device called an EEPROM reader. Some of these tools can only be bought through a dealer, and they are expensive, making this something you should leave to a professional.

How long will it take to have a key programmed?

It is contingent on the model of vehicle and its distinct anti-theft features. Many cars come with security features that prevent the key from working if not programmed to the vehicle. This is in order to prevent theft, and will require a locksmith professional be hired for each model. The key needs to communicate with the computer onboard to unlock the doors or start the engine. A professional auto locksmith will be able to figure this out quickly.

Even for experts with years of experience certain car brands can be difficult even to program. For these models, the process could take hours or even days. This is because the process will require EEPROM programming techniques that the majority of locksmiths don't have access to.

Other features of cars could also require programming to operate correctly. It could be a remote starter, an automatic transmission or power windows. In these situations an auto locksmith professional will be able to assist when you've lost or broken keys.

The majority of professionals will need to determine the model and make of the vehicle they're working on to determine the exact tools they will need. They will also require a blank key that is compatible with their vehicle. Once they have these two items, they will be able to program the key fob or transponder chip and copy the key in case they need to. Once all the work is completed and the key is tested, they can test the key to make sure it's functioning.

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

It is essential to have a spare key in the event that you lose or damage the one you have. It can be expensive and difficult to program a damaged key. A professional auto locksmith will perform the task more quickly and at a lower cost.