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Reprogramming Car Keys Transponder keys are said to be more secure for cars and harder to copy by thieves. The key could need to be programmed again in the event of damage or lost. You can change the key fobs you own however, you must be aware of the correct procedure. It is essential to have these items to ensure the most effective results: Keys Modern cars require a transponder key to operate. This gives security and anti-theft protection. The keys have to be programmed to the specific car and its systems by a licensed locksmith or dealer. how to reprogram car key is expensive to replace them if they are lost, so it's best to keep extras on hand. You can find replacement key fobs in online stores, as well as many brick-and mortar auto shops. But how can you tell that the key fob you bought is genuine? Can you tell whether it has been programmed to work with another vehicle or if it could be reprogrammed for yours? If you want to program a new key the first step is to make sure that your car is operating. Insert the key you wish to program into the ignition, but do not turn it. You have only a few seconds left before the system resets all commands and leaves the programming mode. This is why it is important to move quickly and not wait between steps. To prevent this from happening, shut off the engine. You can check the car's system by turning the key to the “on” position, then back to the “off” position. You should hear a chime indicating that the process was successful. The door locks will be able to cycle. Some newer vehicles use rolling key technology to prevent thieves from using stolen keys to start the vehicle. The feature is still vulnerable to a technique called a replay attack. It allows thieves to record and then reproduce the signal received from the vehicle key fob to unlock the car. To prevent this, manufacturers have introduced a security feature called CAN bus protocol to stop hacking attempts. Some manufacturers also use special encryption on their key fobs, which are not decoded by an ordinary program. It is best to only attempt this method if you have experience is with electronic devices. It is a good idea to refer to the owner's manual for your car or look up the manufacturer online, as the steps differ based on vehicle model. Transponder chips Car keys with transponder chips require a specific reprogramming to work. Any hardware store can make you a new car key but the real challenge is in integrating it with your car. The key needs to be programmed to match the exact identification number of your car, otherwise it will not start. Transponder chips are a standard feature of modern automobiles and are designed to prevent car theft. The chip is a microcircuit which emits a radio frequency signal when the key is put into the ignition. The car can detect the signal and starts the engine only if the signal is in line with the original one that was programmed into the vehicle. The car is also programmed to stop when it detects an incorrect frequency. This makes it much more difficult for novice car thieves to connect a vehicle with hot wires and then start it. A circuit board with an induction coil connects the chip to the key. When the key is placed in the ignition, it creates a magnetic field around the transponder. This creates a signal which is absorbed by the coil and then transmitted to the key identification number. The key's ID number is sent back to the vehicle and if it matches, the engine will begin to run. There are a few different ways to program a transponder keys, however, all require an appropriate tool. You can purchase these tools online or from most locksmiths for cars. They are not cheap, but they're vital for programming the chip into your vehicle. You may also use a unreprogrammable key that was programmed for a different vehicle. In this scenario, ensure that the key isn't damaged or the transponder has not been altered in any way. You can read the chip with a scanner, or a computer with an USB connector. The process of reprogramming an transponder's key is simple, however it requires an expertly designed software and scan tool. If you're just beginning it is recommended to seek out the help of an auto locksmith. Avoid buying used keys as they may already be programmed, and they won't work with your car. EZ Installer For a long time, owners of cars who needed to replace their key fob had no other option than to go to a dealer to have their key electronically paired to the vehicle. This is because modern keys need to be “paired” to a specific vehicle to work, which required expensive and complex equipment that only dealers could access. The EZ Installer by Car Keys Express simplifies the process of pairing modern keys with vehicles used by retailers and locksmiths. The EZ Installer is a simple, “plug and play” OBD device that connects new keys to vehicles, without the need for complicated equipment or programming tokens. It connects directly to the vehicle's standard OBD port, and then using an app for mobile devices to provide simple instructions. The EZ Installer is compatible with most newer vehicles that include proximity keys or push button start. Visit the compatibility guide on Tom's website to see whether your vehicle is compatible. If the device fails to program a remote or key purchased from Tom's into a compatible vehicle, a full refund is provided. Contrary to conventional programming equipment which costs key retailers and professionals many thousands of dollars in “token” fees per key, the EZ Installer Pro does not charge these costs. It can be used for as long as the key professional or retailer wants. The EZ Installer eliminates the need for costly monthly service contracts and software updates. This allows retailers to save money while offering their customers the same top quality service as OEM equipment. It also comes with an industry-leading warranty that includes all software and hardware for life. You can also find out more about Locksmiths, auto mechanics, and even owners of vehicles can use car key programming tools to program new keys for vehicles. These tools connect to the immobilizer of the vehicle to program new keys and remote controls. They can also be used to copy existing keys and create duplicate keys. These tools are an essential tool for those who own a car. One of the most popular tools for programming keys to cars is the Autel Maxisys MS906BT. This vehicle diagnostic scanner is compatible with all major brands and offers advanced OE features. It has an important programming feature and can backup the current key information. It can also reset the immobilizer or clear immobilizer fault codes. Another tool that is essential for reprogramming car keys is the OTOFIX IMM1. This auto diagnostic scanner is able to read passwords for most major brands, and it comes with advanced features that are OE-level. It also performs online calibration, customization, and EEPROM reading. The tool also has a feature to bypass a BMW or Mercedes PIN code. It is also able to read EEPROMs, car MCUs, and CAN-EEPROMs of all major models. The XToolUSA Bidirectional Scanner is another top choice to reprogramme cars. This tool is a great tool for auto repair shops as well as locksmiths as it can read key data and codes from the majority of vehicles in a matter of seconds. It also features an active test function that allows you to determine the cause quickly and efficiently. There are many ways to reprogram your car. It is essential to have the proper tools and to understand how they function. Incorrect programming may cause damage to the immobilizer on the vehicle and prevent it from beginning. It is recommended to seek advice from a professional prior to trying to reprogram your car key. Another option is to buy the kit that comes with a key programmer, remote control keys, and transponder chips. This will ensure that you are equipped with all the tools you require to reprogram the car key. This method, however, takes longer and requires some understanding of electronics and soldering.