Using a Key Programmer Modern key fobs go beyond just keys; they communicate with a vehicle to start it, open the rear hatch, and much more. To do this, they have to be programmed together. Car dealerships, your automobile manufacturer and auto locksmiths all offer key programming services. However, you can also do it yourself if you have the right equipment. What is a key programmer? A key programmer is a device used to recode the transponder on the fob or key of a car, truck or other vehicle. This is required when the new key or fob needs to be programmed. It's also common in the event that an existing fob or key has been stolen or lost. The device basically reprograms digital signature on the chip inside the key to match the signature of the vehicle, and allows it to start. Some vehicles have electronic immobilizer systems that stop theft by preventing the engine from starting if it is not equipped with the correct fob or key. This is done by having the system check to make sure that the fob or key has the right digital signature. If it does not, the system will shut down. This kind of system is efficient in reducing car theft and has been made compulsory for a variety of models of cars by the manufacturer. The majority of these anti-theft systems are controlled by a module installed in the engine compartment instrument cluster, instrument cluster, or ignition lock. In some instances, these modules need special keys that have been designed by experts to function with the antitheft system. This is usually done by a dealership or locksmith via the use of a computer. It is possible to reprogram certain fobs and keys yourself but it isn't recommended until you are an experienced technician in the field. This is because a wrongly programmed key could cause the vehicle to fail to start, run or be destroyed. The majority of auto manufacturers have a very precise procedure for programming these keys. It is recommended that if you plan to provide key programming as part of your service offerings you get an LSID. This credential gives you access to an inventory of key and immobilizer codes, as well as information about the product. With this access, you are able to create and test new keys for customers quickly and quickly. In addition, it provides you with important assistance and documentation to assist you in your day-to-day business operations. How do I program a key? Key programmer devices can be used to modify the keys of your car. It will read information from the microchip in the key, and add new information to the chip. This will allow you to use your key and will ensure that it is working properly. However, the procedure of using a key programmer can be somewhat complicated and requires some technical know-how to use. Before you attempt to do this yourself, you must consult a professional locksmith or professional for instructions. You can purchase a key programer and have it professionally programmed online at a cost that is lower than what you would pay an auto shop to complete the task for you. But, remember that not all key programmers will work with your car and you should make sure to check the product's compatibility with the model of your car before purchasing. Most of the time you'll require having your key fob reprogrammed by a dealer. The key fob has to be reprogrammed in order to include the specific information needed for your car's anti theft system. A dealer will typically require the VIN number for your vehicle to perform this, and typically charge a fee for it. You could be able reduce the cost by providing the dealer a copy your title, which you can obtain through the DMV in most states. For some cars you may also be able to reprogram your own key if you have another working key that works with your vehicle. This is called master key method and can be used to program a different key on certain vehicles. If you own an GM car, for example, insert your key into the ignition until the security light turns off. Once that happens you can take out your working key, and then insert the new one to program it. You can also buy a specialized EEPROM Key Programmer. This is more expensive but more effective method of programming the car key. This is a more advanced technology, which requires that you take apart the car and read the data from the chip in the key. This kind of programming is ideal for professionals in the field of automotive mechanics who have extensive experience in electronic repair. What are the best options for key programmers? There are a variety of options when it comes to key programmers. Some are solely focused only on the creation of new keys, while others include a wide range of diagnostic and service functions, making them a complete tool for mechanics' workshops. XTool is one of these manufacturers that makes a range of key programming devices that have been well-received by customers. Their products are simple to use and inexpensive with a focus on customer service. One of the most adored models they offer is the XTOOL Inplus IP616, rated as one of the top in its class. It has a user-friendly interface with super clear instructions that guide users through the process of programming. It has two methods of doing so: By vehicle or via type. The first is simpler and is more suitable for novices and home mechanics, while the second is more advanced and requires more expertise. Autel MaxiIM IM608PRO Auto Key Programmer is another excellent alternative. This is a brand new model that provides more stability and power. It is equipped with an impressive IMMO feature as well as OEM-level diagnostics. This makes it perfect for professional automotive technicians. This model also allows for bypassing immobilizers in early Renault vehicles. It has a range of other useful functions, such as reading mechanical key codes as well as dealer tool security codes. Additionally, it is able to read CAN data on some Peugeot and Citroen vehicles and also has a long-lasting battery. Despite its impressive features, the XTOOL Inplus IP616 remains relatively affordable. It's priced at less than $500, making it a great option for any mechanic. The device comes with a rechargeable battery as well as a quick start-up time, and supports both OBD and CAN protocols. Autel XP400 PRO Auto Key Programmer is a more advanced option. This device is an advanced IMMO tool that has numerous additional features, including the ability to copy Freescale 9S12 MCUs. It supports a wider range than the previous model and has a CAN bus communications system that can be used with ECUs. What key programmer is best for me? In the end, it all comes down to the kind of work you do and what you need from your key programmer. If you're an auto locksmith you may require an instrument that can program the broadest range of vehicles, like the Smart Pro or Autel IM608 Pro. They can do everything from reading/writing on the key to ECU programming, and even some advanced programming at the OE level. There are alternatives for mechanics that don't need the full equipment. One of these is the Xtool Pad3 tablet key programmer. It's designed for key programming, but it also has advanced special functions, including oil service light reset as well as battery reset, EPB reset and throttle body reset.