Using a Key Programmer

Modern key fobs are more than just act as keys. They communicate with the vehicle to start it up and open the rear hatch and more. To do so they must be programmed to work in conjunction.

All automotive dealerships, auto manufacturers and auto locksmiths provide key programming. You can do it yourself using the right equipment.

What is a key programmer?

Key programmer is a device used to recode the transponder in the car or truck fob or key. This is required when the new key or fob needs to be programmed. This process is often required when a fob or a key is lost or stolen. The device basically reprograms digital signature on the chip inside the key to match the signature of the vehicle and allow it to begin.

Certain vehicles come with electronic immobilizers which prevent theft by preventing the engine from starting without the proper key. The system checks whether the fob or key is digitally signed. If it does not it will shut down. This type of system is efficient in reducing automobile theft, and has been made compulsory for many models of car by the manufacturer.

These systems can be controlled by a module installed in the vehicle’s engine instrument panel, instrument panel or ignition lock. In some instances the modules require specific keys that have been specifically created by an expert to work with the anti-theft system. This is usually done by a dealership or locksmith through the use of a computer.

While it is possible to reprogramme some keys and fobs on your own, it is not recommended unless you are a highly skilled technician in the field of automotive. A wrongly programmed key can cause the vehicle to not begin, stop running or even break. The majority of auto manufacturers have a very precise procedure for programming keys.

It is recommended that if you plan to offer key programming as a part of your service offerings you acquire an LSID. This credential grants you access to the database of immobilizer and key codes along with information about the product. This lets you quickly and easily program and test new key for customers. It also provides essential documentation and support that can aid you in your day-to-day business operations.

How do I program an electronic key?

A key programmer can be used to reprogram the keys in your car. It will read the information from the microchip that is in your key and then write new data to the chip. This will permit you to use your key and ensure that it works correctly. The process of using a programmer isn't easy and requires technical knowledge. Therefore, before you attempt to accomplish this on your own it is recommended to first consult an expert or locksmith for instructions.

You can purchase a key programer and get it professionally programmed online at a cost that is lower than what you would pay a dealership to complete the task for you. Be aware that not all key programmers will be compatible with your car and you must confirm the compatibility of the product with your model of car before making a purchase.


Dealers typically need to reprogramme your key fob. This is because the key fob will need to be reprogrammed with the specific information for your car's anti-theft system. Dealers typically need to have the VIN number for your vehicle to perform this, and usually charge a fee for it. You could be able save this cost by giving the dealer a copy your title that you can get through the DMV in all states.

You can also reprogramme your car's key if you already have a working key. This method is known as the master key method and it is applicable to certain vehicles in order to program a secondary key. For instance, if are driving an GM vehicle, simply insert your working key into the ignition and turn it on until the security light turns off. When the security light is out, you can remove the working key and replace it with the new one.

You can also buy a specialized EEPROM Key Programmer. This is more expensive but more efficient method of programming a car key. However it is a more advanced technology that requires dismantling the car and reading the data from the microchip in the key. This type of programming is best for professional automotive technicians who have extensive experience in electronic repair.

What are the top programming options for key programmers?

There are a number of options when it comes to key programmers. Some are single-purpose, focused only on the creation of new keys, while others include a wide range of diagnostic and service functions, making them an all-in-one tool for the mechanic's workshop. XTool is one such manufacturer offering a variety of key programmer tools that have been well-received by their customers. Their products are easy to use and inexpensive with a focus on customer service.

One of their most popular models is the XTOOL Inplus IP616, which has been rated as one of the best in its class. It comes with a simple, user-friendly interface and extremely clear instructions that guide users through the procedure of programming a new key. It has two methods of doing this: via vehicle or via typing. The first is simpler and is more suitable for novices and home mechanics, whereas the second option is more sophisticated and requires more knowledge.

Another great option is the Autel MaxiIM IMM608 PRO Auto Key Programmer. It is a more recent model that provides more performance and stability. It comes with a powerful IMMO function and OE-level full system diagnostics which makes it ideal for automotive technicians who are professionals.

This model is also able to bypass immobilizers that were used in earlier Renault vehicles. It also has other useful features, including reading mechanical key codes or dealer tool security codes. Additionally, G28 Car Keys UK is able to read CAN data on some Peugeot and Citroen vehicles and has a long-lasting battery.

Despite its impressive features, the XTOOL Inplus IP616 remains relatively affordable. It is available for less than $500, making it an excellent option for any DIY or mechanic rvinepairman. It comes with a rechargeable battery and a fast boot-up time, and it can be used with both OBD and CAN protocols.

Autel XP400 PRO Auto Key Programmer is a more advanced option. This device is an advanced IMMO tool that comes with numerous additional features, such as the ability to clone Freescale 9S12 MCUs. It is able to support a larger range than the previous model, and has a CAN bus communications system that works with ECUs.

Which key programmer is the best for me?

Ultimately, it comes down to the kind of work you perform and what you need from your key programmer. If you are an auto locksmith, then you might need a key programmer that covers an array of vehicles. For example the Smart Pro or Autel IM608 Pro. They can perform everything from writing or reading on the key as well as ECU coding, and some OE-level programming.

For mechanics who don't need the full-on rig, there are simpler options like the Xtool PAD3 tablet key programmer. It's designed to do key programming but also offers advanced special functions including oil service light reset as well as EPB reset, battery reset, and throttle body reset.